diff options
| -rwxr-xr-x | build-aux/config.sub | 6 | ||||
| -rw-r--r-- | doc/misc/texinfo.tex | 11 | ||||
| -rw-r--r-- | lib/getopt.c | 1445 | ||||
| -rw-r--r-- | lib/getopt.in.h | 275 | ||||
| -rw-r--r-- | lib/getopt1.c | 157 | ||||
| -rw-r--r-- | lib/getopt_cdefs.in.h | 75 | ||||
| -rw-r--r-- | lib/getopt_core.h | 96 | ||||
| -rw-r--r-- | lib/getopt_ext.h | 77 | ||||
| -rw-r--r-- | lib/getopt_int.h | 69 | ||||
| -rw-r--r-- | lib/getopt_pfx_core.h | 54 | ||||
| -rw-r--r-- | lib/getopt_pfx_ext.h | 64 | ||||
| -rw-r--r-- | lib/gnulib.mk.in | 21 | ||||
| -rw-r--r-- | lib/md5.c | 5 | ||||
| -rw-r--r-- | lib/md5.h | 4 | ||||
| -rw-r--r-- | lib/sha1.c | 5 | ||||
| -rw-r--r-- | lib/sha1.h | 4 | ||||
| -rw-r--r-- | lib/sha256.c | 5 | ||||
| -rw-r--r-- | lib/sha256.h | 4 | ||||
| -rw-r--r-- | lib/sha512.c | 5 | ||||
| -rw-r--r-- | lib/sha512.h | 4 | ||||
| -rw-r--r-- | lib/unistd.in.h | 4 | ||||
| -rw-r--r-- | m4/getopt.m4 | 22 | ||||
| -rw-r--r-- | m4/gnulib-comp.m4 | 14 |
23 files changed, 1049 insertions, 1377 deletions
diff --git a/build-aux/config.sub b/build-aux/config.sub index 7203bf1e64b..40ea5dfe115 100755 --- a/build-aux/config.sub +++ b/build-aux/config.sub @@ -2,7 +2,7 @@ # Configuration validation subroutine script. # Copyright 1992-2017 Free Software Foundation, Inc. -timestamp='2017-03-21' +timestamp='2017-04-02' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by @@ -263,7 +263,7 @@ case $basic_machine in | fido | fr30 | frv | ft32 \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ | hexagon \ - | i370 | i860 | i960 | ia64 \ + | i370 | i860 | i960 | ia16 | ia64 \ | ip2k | iq2000 \ | k1om \ | le32 | le64 \ @@ -389,7 +389,7 @@ case $basic_machine in | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ | hexagon-* \ - | i*86-* | i860-* | i960-* | ia64-* \ + | i*86-* | i860-* | i960-* | ia16-* | ia64-* \ | ip2k-* | iq2000-* \ | k1om-* \ | le32-* | le64-* \ diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex index 970d8784688..7bcb27b76e1 100644 --- a/doc/misc/texinfo.tex +++ b/doc/misc/texinfo.tex @@ -3,11 +3,11 @@ % Load plain if necessary, i.e., if running under initex. \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi % -\def\texinfoversion{2017-03-07.20} +\def\texinfoversion{2017-03-25.14} % % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995, % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, -% 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 +% 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 % Free Software Foundation, Inc. % % This texinfo.tex file is free software: you can redistribute it and/or @@ -11312,7 +11312,6 @@ directory should work if nowhere else does.} % \lispnarrowing = 0.3in \tolerance = 700 - \hfuzz = 1pt \contentsrightmargin = 0pt \defbodyindent = .5cm }} @@ -11330,7 +11329,6 @@ directory should work if nowhere else does.} % \lispnarrowing = 0.25in \tolerance = 700 - \hfuzz = 1pt \contentsrightmargin = 0pt \defbodyindent = .4cm }} @@ -11356,7 +11354,6 @@ directory should work if nowhere else does.} {297mm}{210mm}% % \tolerance = 700 - \hfuzz = 1pt \contentsrightmargin = 0pt \defbodyindent = 5mm }} @@ -11375,7 +11372,6 @@ directory should work if nowhere else does.} % \lispnarrowing = 0.2in \tolerance = 800 - \hfuzz = 1.2pt \contentsrightmargin = 0pt \defbodyindent = 2mm \tableindent = 12mm @@ -11431,6 +11427,9 @@ directory should work if nowhere else does.} % \letterpaper +% Default value of \hfuzz, for suppressing warnings about overfull hboxes. +\hfuzz = 1pt + \message{and turning on texinfo input format.} diff --git a/lib/getopt.c b/lib/getopt.c index 7afd0dcabe8..a7db39b68df 100644 --- a/lib/getopt.c +++ b/lib/getopt.c @@ -1,9 +1,7 @@ /* Getopt for GNU. - NOTE: getopt is part of the C library, so if you don't know what - "Keep this file name-space clean" means, talk to drepper@gnu.org - before changing it! Copyright (C) 1987-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. + This file is part of the GNU C Library and is also part of gnulib. + Patches to this file should be submitted to both projects. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public @@ -27,34 +25,57 @@ #include <stdio.h> #include <stdlib.h> -#include <unistd.h> #include <string.h> +#include <unistd.h> #ifdef _LIBC +/* When used as part of glibc, error printing must be done differently + for standards compliance. getopt is not a cancellation point, so + it must not call functions that are, and it is specified by an + older standard than stdio locking, so it must not refer to + functions in the "user namespace" related to stdio locking. + Finally, it must use glibc's internal message translation so that + the messages are looked up in the proper text domain. */ # include <libintl.h> +# define fprintf __fxprintf_nocancel +# define flockfile(fp) _IO_flockfile (fp) +# define funlockfile(fp) _IO_funlockfile (fp) #else # include "gettext.h" # define _(msgid) gettext (msgid) +/* When used standalone, flockfile and funlockfile might not be + available. */ +# ifndef _POSIX_THREAD_SAFE_FUNCTIONS +# define flockfile(fp) /* nop */ +# define funlockfile(fp) /* nop */ +# endif +/* When used standalone, do not attempt to use alloca. */ +# define __libc_use_alloca(size) 0 +# undef alloca +# define alloca(size) (abort (), (void *)0) #endif -#if defined _LIBC -# include <wchar.h> -#endif - -/* This version of 'getopt' appears to the caller like standard Unix 'getopt' - but it behaves differently for the user, since it allows the user - to intersperse the options with the other arguments. - - As 'getopt_long' works, it permutes the elements of ARGV so that, - when it is done, all the options precede everything else. Thus - all application programs are extended to handle flexible argument order. - - Using 'getopt' or setting the environment variable POSIXLY_CORRECT +/* This implementation of 'getopt' has three modes for handling + options interspersed with non-option arguments. It can stop + scanning for options at the first non-option argument encountered, + as POSIX specifies. It can continue scanning for options after the + first non-option argument, but permute 'argv' as it goes so that, + after 'getopt' is done, all the options precede all the non-option + arguments and 'optind' points to the first non-option argument. + Or, it can report non-option arguments as if they were arguments to + the option character '\x01'. + + The default behavior of 'getopt_long' is to permute the argument list. + When this implementation is used standalone, the default behavior of + 'getopt' is to stop at the first non-option argument, but when it is + used as part of GNU libc it also permutes the argument list. In both + cases, setting the environment variable POSIXLY_CORRECT to any value disables permutation. - Then the behavior is completely standard. - GNU application programs can use a third alternative mode in which - they can distinguish the relative order of options and other arguments. */ + If the first character of the OPTSTRING argument to 'getopt' or + 'getopt_long' is '+', both functions will stop at the first + non-option argument. If it is '-', both functions will report + non-option arguments as arguments to the option character '\x01'. */ #include "getopt_int.h" @@ -95,42 +116,7 @@ int optopt = '?'; /* Keep a global copy of all internal members of getopt_data. */ static struct _getopt_data getopt_data; - - -#if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV -extern char *getenv (); -#endif -#ifdef _LIBC -/* Stored original parameters. - XXX This is no good solution. We should rather copy the args so - that we can compare them later. But we must not use malloc(3). */ -extern int __libc_argc; -extern char **__libc_argv; - -/* Bash 2.0 gives us an environment variable containing flags - indicating ARGV elements that should not be considered arguments. */ - -# ifdef USE_NONOPTION_FLAGS -/* Defined in getopt_init.c */ -extern char *__getopt_nonoption_flags; -# endif - -# ifdef USE_NONOPTION_FLAGS -# define SWAP_FLAGS(ch1, ch2) \ - if (d->__nonoption_flags_len > 0) \ - { \ - char __tmp = __getopt_nonoption_flags[ch1]; \ - __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ - __getopt_nonoption_flags[ch2] = __tmp; \ - } -# else -# define SWAP_FLAGS(ch1, ch2) -# endif -#else /* !_LIBC */ -# define SWAP_FLAGS(ch1, ch2) -#endif /* _LIBC */ - /* Exchange two adjacent subsequences of ARGV. One subsequence is elements [first_nonopt,last_nonopt) which contains all the non-options that have been skipped so far. @@ -153,64 +139,40 @@ exchange (char **argv, struct _getopt_data *d) It leaves the longer segment in the right place overall, but it consists of two parts that need to be swapped next. */ -#if defined _LIBC && defined USE_NONOPTION_FLAGS - /* First make sure the handling of the '__getopt_nonoption_flags' - string can work normally. Our top argument must be in the range - of the string. */ - if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len) - { - /* We must extend the array. The user plays games with us and - presents new arguments. */ - char *new_str = malloc (top + 1); - if (new_str == NULL) - d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0; - else - { - memset (__mempcpy (new_str, __getopt_nonoption_flags, - d->__nonoption_flags_max_len), - '\0', top + 1 - d->__nonoption_flags_max_len); - d->__nonoption_flags_max_len = top + 1; - __getopt_nonoption_flags = new_str; - } - } -#endif - while (top > middle && middle > bottom) { if (top - middle > middle - bottom) - { - /* Bottom segment is the short one. */ - int len = middle - bottom; - int i; - - /* Swap it with the top part of the top segment. */ - for (i = 0; i < len; i++) - { - tem = argv[bottom + i]; - argv[bottom + i] = argv[top - (middle - bottom) + i]; - argv[top - (middle - bottom) + i] = tem; - SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); - } - /* Exclude the moved bottom segment from further swapping. */ - top -= len; - } + { + /* Bottom segment is the short one. */ + int len = middle - bottom; + int i; + + /* Swap it with the top part of the top segment. */ + for (i = 0; i < len; i++) + { + tem = argv[bottom + i]; + argv[bottom + i] = argv[top - (middle - bottom) + i]; + argv[top - (middle - bottom) + i] = tem; + } + /* Exclude the moved bottom segment from further swapping. */ + top -= len; + } else - { - /* Top segment is the short one. */ - int len = top - middle; - int i; - - /* Swap it with the bottom part of the bottom segment. */ - for (i = 0; i < len; i++) - { - tem = argv[bottom + i]; - argv[bottom + i] = argv[middle + i]; - argv[middle + i] = tem; - SWAP_FLAGS (bottom + i, middle + i); - } - /* Exclude the moved top segment from further swapping. */ - bottom += len; - } + { + /* Top segment is the short one. */ + int len = top - middle; + int i; + + /* Swap it with the bottom part of the bottom segment. */ + for (i = 0; i < len; i++) + { + tem = argv[bottom + i]; + argv[bottom + i] = argv[middle + i]; + argv[middle + i] = tem; + } + /* Exclude the moved top segment from further swapping. */ + bottom += len; + } } /* Update records for the slots the non-options now occupy. */ @@ -219,25 +181,216 @@ exchange (char **argv, struct _getopt_data *d) d->__last_nonopt = d->optind; } -/* Initialize the internal data when the first call is made. */ +/* Process the argument starting with d->__nextchar as a long option. + d->optind should *not* have been advanced over this argument. + + If the value returned is -1, it was not actually a long option, the + state is unchanged, and the argument should be processed as a set + of short options (this can only happen when long_only is true). + Otherwise, the option (and its argument, if any) have been consumed + and the return value is the value to return from _getopt_internal_r. */ +static int +process_long_option (int argc, char **argv, const char *optstring, + const struct option *longopts, int *longind, + int long_only, struct _getopt_data *d, + int print_errors, const char *prefix) +{ + char *nameend; + size_t namelen; + const struct option *p; + const struct option *pfound = NULL; + int n_options; + int option_index; + + for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++) + /* Do nothing. */ ; + namelen = nameend - d->__nextchar; + + /* First look for an exact match, counting the options as a side + effect. */ + for (p = longopts, n_options = 0; p->name; p++, n_options++) + if (!strncmp (p->name, d->__nextchar, namelen) + && namelen == strlen (p->name)) + { + /* Exact match found. */ + pfound = p; + option_index = n_options; + break; + } + + if (pfound == NULL) + { + /* Didn't find an exact match, so look for abbreviations. */ + unsigned char *ambig_set = NULL; + int ambig_malloced = 0; + int ambig_fallback = 0; + int indfound = -1; + + for (p = longopts, option_index = 0; p->name; p++, option_index++) + if (!strncmp (p->name, d->__nextchar, namelen)) + { + if (pfound == NULL) + { + /* First nonexact match found. */ + pfound = p; + indfound = option_index; + } + else if (long_only + || pfound->has_arg != p->has_arg + || pfound->flag != p->flag + || pfound->val != p->val) + { + /* Second or later nonexact match found. */ + if (!ambig_fallback) + { + if (!print_errors) + /* Don't waste effort tracking the ambig set if + we're not going to print it anyway. */ + ambig_fallback = 1; + else if (!ambig_set) + { + if (__libc_use_alloca (n_options)) + ambig_set = alloca (n_options); + else if ((ambig_set = malloc (n_options)) == NULL) + /* Fall back to simpler error message. */ + ambig_fallback = 1; + else + ambig_malloced = 1; + + if (ambig_set) + { + memset (ambig_set, 0, n_options); + ambig_set[indfound] = 1; + } + } + if (ambig_set) + ambig_set[option_index] = 1; + } + } + } + + if (ambig_set || ambig_fallback) + { + if (print_errors) + { + if (ambig_fallback) + fprintf (stderr, _("%s: option '%s%s' is ambiguous\n"), + argv[0], prefix, d->__nextchar); + else + { + flockfile (stderr); + fprintf (stderr, + _("%s: option '%s%s' is ambiguous; possibilities:"), + argv[0], prefix, d->__nextchar); + + for (option_index = 0; option_index < n_options; option_index++) + if (ambig_set[option_index]) + fprintf (stderr, " '%s%s'", + prefix, longopts[option_index].name); + + /* This must use 'fprintf' even though it's only + printing a single character, so that it goes through + __fxprintf_nocancel when compiled as part of glibc. */ + fprintf (stderr, "\n"); + funlockfile (stderr); + } + } + if (ambig_malloced) + free (ambig_set); + d->__nextchar += strlen (d->__nextchar); + d->optind++; + d->optopt = 0; + return '?'; + } + + option_index = indfound; + } + + if (pfound == NULL) + { + /* Can't find it as a long option. If this is not getopt_long_only, + or the option starts with '--' or is not a valid short option, + then it's an error. */ + if (!long_only || argv[d->optind][1] == '-' + || strchr (optstring, *d->__nextchar) == NULL) + { + if (print_errors) + fprintf (stderr, _("%s: unrecognized option '%s%s'\n"), + argv[0], prefix, d->__nextchar); + + d->__nextchar = NULL; + d->optind++; + d->optopt = 0; + return '?'; + } + + /* Otherwise interpret it as a short option. */ + return -1; + } + + /* We have found a matching long option. Consume it. */ + d->optind++; + d->__nextchar = NULL; + if (*nameend) + { + /* Don't test has_arg with >, because some C compilers don't + allow it to be used on enums. */ + if (pfound->has_arg) + d->optarg = nameend + 1; + else + { + if (print_errors) + fprintf (stderr, + _("%s: option '%s%s' doesn't allow an argument\n"), + argv[0], prefix, pfound->name); + + d->optopt = pfound->val; + return '?'; + } + } + else if (pfound->has_arg == 1) + { + if (d->optind < argc) + d->optarg = argv[d->optind++]; + else + { + if (print_errors) + fprintf (stderr, + _("%s: option '%s%s' requires an argument\n"), + argv[0], prefix, pfound->name); + + d->optopt = pfound->val; + return optstring[0] == ':' ? ':' : '?'; + } + } + + if (longind != NULL) + *longind = option_index; + if (pfound->flag) + { + *(pfound->flag) = pfound->val; + return 0; + } + return pfound->val; +} + +/* Initialize internal data upon the first call to getopt. */ static const char * _getopt_initialize (int argc _GL_UNUSED, - char **argv _GL_UNUSED, const char *optstring, - struct _getopt_data *d, int posixly_correct) + char **argv _GL_UNUSED, const char *optstring, + struct _getopt_data *d, int posixly_correct) { /* Start processing options with ARGV-element 1 (since ARGV-element 0 is the program name); the sequence of previously skipped non-option ARGV-elements is empty. */ + if (d->optind == 0) + d->optind = 1; d->__first_nonopt = d->__last_nonopt = d->optind; - d->__nextchar = NULL; - d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT"); - /* Determine how to handle the ordering of options and nonoptions. */ - if (optstring[0] == '-') { d->__ordering = RETURN_IN_ORDER; @@ -248,41 +401,12 @@ _getopt_initialize (int argc _GL_UNUSED, d->__ordering = REQUIRE_ORDER; ++optstring; } - else if (d->__posixly_correct) + else if (posixly_correct || !!getenv ("POSIXLY_CORRECT")) d->__ordering = REQUIRE_ORDER; else d->__ordering = PERMUTE; -#if defined _LIBC && defined USE_NONOPTION_FLAGS - if (!d->__posixly_correct - && argc == __libc_argc && argv == __libc_argv) - { - if (d->__nonoption_flags_max_len == 0) - { - if (__getopt_nonoption_flags == NULL - || __getopt_nonoption_flags[0] == '\0') - d->__nonoption_flags_max_len = -1; - else - { - const char *orig_str = __getopt_nonoption_flags; - int len = d->__nonoption_flags_max_len = strlen (orig_str); - if (d->__nonoption_flags_max_len < argc) - d->__nonoption_flags_max_len = argc; - __getopt_nonoption_flags = - (char *) malloc (d->__nonoption_flags_max_len); - if (__getopt_nonoption_flags == NULL) - d->__nonoption_flags_max_len = -1; - else - memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), - '\0', d->__nonoption_flags_max_len - len); - } - } - d->__nonoption_flags_len = d->__nonoption_flags_max_len; - } - else - d->__nonoption_flags_len = 0; -#endif - + d->__initialized = 1; return optstring; } @@ -344,8 +468,8 @@ _getopt_initialize (int argc _GL_UNUSED, int _getopt_internal_r (int argc, char **argv, const char *optstring, - const struct option *longopts, int *longind, - int long_only, struct _getopt_data *d, int posixly_correct) + const struct option *longopts, int *longind, + int long_only, struct _getopt_data *d, int posixly_correct) { int print_errors = d->opterr; @@ -355,461 +479,129 @@ _getopt_internal_r (int argc, char **argv, const char *optstring, d->optarg = NULL; if (d->optind == 0 || !d->__initialized) - { - if (d->optind == 0) - d->optind = 1; /* Don't scan ARGV[0], the program name. */ - optstring = _getopt_initialize (argc, argv, optstring, d, - posixly_correct); - d->__initialized = 1; - } + optstring = _getopt_initialize (argc, argv, optstring, d, posixly_correct); else if (optstring[0] == '-' || optstring[0] == '+') optstring++; + if (optstring[0] == ':') print_errors = 0; - /* Test whether ARGV[optind] points to a non-option argument. - Either it does not have option syntax, or there is an environment flag - from the shell indicating it is not an option. The later information - is only used when the used in the GNU libc. */ -#if defined _LIBC && defined USE_NONOPTION_FLAGS -# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \ - || (d->optind < d->__nonoption_flags_len \ - && __getopt_nonoption_flags[d->optind] == '1')) -#else -# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0') -#endif + /* Test whether ARGV[optind] points to a non-option argument. */ +#define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0') if (d->__nextchar == NULL || *d->__nextchar == '\0') { /* Advance to the next ARGV-element. */ /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been - moved back by the user (who may also have changed the arguments). */ + moved back by the user (who may also have changed the arguments). */ if (d->__last_nonopt > d->optind) - d->__last_nonopt = d->optind; + d->__last_nonopt = d->optind; if (d->__first_nonopt > d->optind) - d->__first_nonopt = d->optind; + d->__first_nonopt = d->optind; if (d->__ordering == PERMUTE) - { - /* If we have just processed some options following some non-options, - exchange them so that the options come first. */ + { + /* If we have just processed some options following some non-options, + exchange them so that the options come first. */ - if (d->__first_nonopt != d->__last_nonopt - && d->__last_nonopt != d->optind) - exchange ((char **) argv, d); - else if (d->__last_nonopt != d->optind) - d->__first_nonopt = d->optind; + if (d->__first_nonopt != d->__last_nonopt + && d->__last_nonopt != d->optind) + exchange (argv, d); + else if (d->__last_nonopt != d->optind) + d->__first_nonopt = d->optind; - /* Skip any additional non-options - and extend the range of non-options previously skipped. */ + /* Skip any additional non-options + and extend the range of non-options previously skipped. */ - while (d->optind < argc && NONOPTION_P) - d->optind++; - d->__last_nonopt = d->optind; - } + while (d->optind < argc && NONOPTION_P) + d->optind++; + d->__last_nonopt = d->optind; + } /* The special ARGV-element '--' means premature end of options. - Skip it like a null option, - then exchange with previous non-options as if it were an option, - then skip everything else like a non-option. */ + Skip it like a null option, + then exchange with previous non-options as if it were an option, + then skip everything else like a non-option. */ if (d->optind != argc && !strcmp (argv[d->optind], "--")) - { - d->optind++; + { + d->optind++; - if (d->__first_nonopt != d->__last_nonopt - && d->__last_nonopt != d->optind) - exchange ((char **) argv, d); - else if (d->__first_nonopt == d->__last_nonopt) - d->__first_nonopt = d->optind; - d->__last_nonopt = argc; + if (d->__first_nonopt != d->__last_nonopt + && d->__last_nonopt != d->optind) + exchange (argv, d); + else if (d->__first_nonopt == d->__last_nonopt) + d->__first_nonopt = d->optind; + d->__last_nonopt = argc; - d->optind = argc; - } + d->optind = argc; + } /* If we have done all the ARGV-elements, stop the scan - and back over any non-options that we skipped and permuted. */ + and back over any non-options that we skipped and permuted. */ if (d->optind == argc) - { - /* Set the next-arg-index to point at the non-options - that we previously skipped, so the caller will digest them. */ - if (d->__first_nonopt != d->__last_nonopt) - d->optind = d->__first_nonopt; - return -1; - } + { + /* Set the next-arg-index to point at the non-options + that we previously skipped, so the caller will digest them. */ + if (d->__first_nonopt != d->__last_nonopt) + d->optind = d->__first_nonopt; + return -1; + } /* If we have come to a non-option and did not permute it, - either stop the scan or describe it to the caller and pass it by. */ + either stop the scan or describe it to the caller and pass it by. */ if (NONOPTION_P) - { - if (d->__ordering == REQUIRE_ORDER) - return -1; - d->optarg = argv[d->optind++]; - return 1; - } + { + if (d->__ordering == REQUIRE_ORDER) + return -1; + d->optarg = argv[d->optind++]; + return 1; + } /* We have found another option-ARGV-element. - Skip the initial punctuation. */ - - d->__nextchar = (argv[d->optind] + 1 - + (longopts != NULL && argv[d->optind][1] == '-')); - } - - /* Decode the current option-ARGV-element. */ - - /* Check whether the ARGV-element is a long option. - - If long_only and the ARGV-element has the form "-f", where f is - a valid short option, don't consider it an abbreviated form of - a long option that starts with f. Otherwise there would be no - way to give the -f short option. - - On the other hand, if there's a long option "fubar" and - the ARGV-element is "-fu", do consider that an abbreviation of - the long option, just like "--fu", and not "-f" with arg "u". - - This distinction seems to be the most useful approach. */ - - if (longopts != NULL - && (argv[d->optind][1] == '-' - || (long_only && (argv[d->optind][2] - || !strchr (optstring, argv[d->optind][1]))))) - { - char *nameend; - unsigned int namelen; - const struct option *p; - const struct option *pfound = NULL; - struct option_list - { - const struct option *p; - struct option_list *next; - } *ambig_list = NULL; -#ifdef _LIBC -/* malloc() not used for _LIBC to simplify failure messages. */ -# define free_option_list(l) -#else -# define free_option_list(l) \ - while (l != NULL) \ - { \ - struct option_list *pn = l->next; \ - free (l); \ - l = pn; \ - } -#endif - int exact = 0; - int ambig = 0; - int indfound = -1; - int option_index; - - for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++) - /* Do nothing. */ ; - namelen = nameend - d->__nextchar; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, d->__nextchar, namelen)) - { - if (namelen == (unsigned int) strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else if (ambig) - ; /* Taking simpler path to handling ambiguities. */ - else if (long_only - || pfound->has_arg != p->has_arg - || pfound->flag != p->flag - || pfound->val != p->val) - { - /* Second or later nonexact match found. */ -#ifdef _LIBC - struct option_list *newp = alloca (sizeof (*newp)); -#else - struct option_list *newp = malloc (sizeof (*newp)); - if (newp == NULL) - { - free_option_list (ambig_list); - ambig_list = NULL; - ambig = 1; /* Use simpler fallback message. */ - } - else -#endif - { - newp->p = p; - newp->next = ambig_list; - ambig_list = newp; - } - } - } - - if ((ambig || ambig_list) && !exact) - { - if (print_errors && ambig_list) - { - struct option_list first; - first.p = pfound; - first.next = ambig_list; - ambig_list = &first; - -#if defined _LIBC - char *buf = NULL; - size_t buflen = 0; - - FILE *fp = __open_memstream (&buf, &buflen); - if (fp != NULL) - { - fprintf (fp, - _("%s: option '%s' is ambiguous; possibilities:"), - argv[0], argv[d->optind]); - - do - { - fprintf (fp, " '--%s'", ambig_list->p->name); - ambig_list = ambig_list->next; - } - while (ambig_list != NULL); - - fputc_unlocked ('\n', fp); - - if (__glibc_likely (fclose (fp) != EOF)) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } - } -#else - fprintf (stderr, - _("%s: option '%s' is ambiguous; possibilities:"), - argv[0], argv[d->optind]); - do - { - fprintf (stderr, " '--%s'", ambig_list->p->name); - ambig_list = ambig_list->next; - } - while (ambig_list != NULL); - - fputc ('\n', stderr); -#endif - } - else if (print_errors && ambig) - { - fprintf (stderr, - _("%s: option '%s' is ambiguous\n"), - argv[0], argv[d->optind]); - } - d->__nextchar += strlen (d->__nextchar); - d->optind++; - d->optopt = 0; - free_option_list (ambig_list); - return '?'; - } - - free_option_list (ambig_list); - - if (pfound != NULL) - { - option_index = indfound; - d->optind++; - if (*nameend) - { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - d->optarg = nameend + 1; - else - { - if (print_errors) - { -#if defined _LIBC - char *buf; - int n; -#endif - - if (argv[d->optind - 1][1] == '-') - { - /* --option */ -#if defined _LIBC - n = __asprintf (&buf, _("\ -%s: option '--%s' doesn't allow an argument\n"), - argv[0], pfound->name); -#else - fprintf (stderr, _("\ -%s: option '--%s' doesn't allow an argument\n"), - argv[0], pfound->name); -#endif - } - else - { - /* +option or -option */ -#if defined _LIBC - n = __asprintf (&buf, _("\ -%s: option '%c%s' doesn't allow an argument\n"), - argv[0], argv[d->optind - 1][0], - pfound->name); -#else - fprintf (stderr, _("\ -%s: option '%c%s' doesn't allow an argument\n"), - argv[0], argv[d->optind - 1][0], - pfound->name); -#endif - } - -#if defined _LIBC - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - - d->__nextchar += strlen (d->__nextchar); - - d->optopt = pfound->val; - return '?'; - } - } - else if (pfound->has_arg == 1) - { - if (d->optind < argc) - d->optarg = argv[d->optind++]; - else - { - if (print_errors) - { -#if defined _LIBC - char *buf; - - if (__asprintf (&buf, _("\ -%s: option '--%s' requires an argument\n"), - argv[0], pfound->name) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option '--%s' requires an argument\n"), - argv[0], pfound->name); -#endif - } - d->__nextchar += strlen (d->__nextchar); - d->optopt = pfound->val; - return optstring[0] == ':' ? ':' : '?'; - } - } - d->__nextchar += strlen (d->__nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) - { - *(pfound->flag) = pfound->val; - return 0; - } - return pfound->val; - } - - /* Can't find it as a long option. If this is not getopt_long_only, - or the option starts with '--' or is not a valid short - option, then it's an error. - Otherwise interpret it as a short option. */ - if (!long_only || argv[d->optind][1] == '-' - || strchr (optstring, *d->__nextchar) == NULL) - { - if (print_errors) - { -#if defined _LIBC - char *buf; - int n; -#endif - - if (argv[d->optind][1] == '-') - { - /* --option */ -#if defined _LIBC - n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"), - argv[0], d->__nextchar); -#else - fprintf (stderr, _("%s: unrecognized option '--%s'\n"), - argv[0], d->__nextchar); -#endif - } - else - { - /* +option or -option */ -#if defined _LIBC - n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"), - argv[0], argv[d->optind][0], d->__nextchar); -#else - fprintf (stderr, _("%s: unrecognized option '%c%s'\n"), - argv[0], argv[d->optind][0], d->__nextchar); -#endif - } - -#if defined _LIBC - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - d->__nextchar = (char *) ""; - d->optind++; - d->optopt = 0; - return '?'; - } + Check whether it might be a long option. */ + if (longopts) + { + if (argv[d->optind][1] == '-') + { + /* "--foo" is always a long option. The special option + "--" was handled above. */ + d->__nextchar = argv[d->optind] + 2; + return process_long_option (argc, argv, optstring, longopts, + longind, long_only, d, + print_errors, "--"); + } + + /* If long_only and the ARGV-element has the form "-f", + where f is a valid short option, don't consider it an + abbreviated form of a long option that starts with f. + Otherwise there would be no way to give the -f short + option. + + On the other hand, if there's a long option "fubar" and + the ARGV-element is "-fu", do consider that an + abbreviation of the long option, just like "--fu", and + not "-f" with arg "u". + + This distinction seems to be the most useful approach. */ + if (long_only && (argv[d->optind][2] + || !strchr (optstring, argv[d->optind][1]))) + { + int code; + d->__nextchar = argv[d->optind] + 1; + code = process_long_option (argc, argv, optstring, longopts, + longind, long_only, d, + print_errors, "-"); + if (code != -1) + return code; + } + } + + /* It is not a long option. Skip the initial punctuation. */ + d->__nextchar = argv[d->optind] + 1; } /* Look at and handle the next short option-character. */ @@ -824,331 +616,83 @@ _getopt_internal_r (int argc, char **argv, const char *optstring, if (temp == NULL || c == ':' || c == ';') { - if (print_errors) - { -#if defined _LIBC - char *buf; - int n; -#endif - -#if defined _LIBC - n = __asprintf (&buf, _("%s: invalid option -- '%c'\n"), - argv[0], c); -#else - fprintf (stderr, _("%s: invalid option -- '%c'\n"), argv[0], c); -#endif - -#if defined _LIBC - if (n >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#endif - } - d->optopt = c; - return '?'; + if (print_errors) + fprintf (stderr, _("%s: invalid option -- '%c'\n"), argv[0], c); + d->optopt = c; + return '?'; } + /* Convenience. Treat POSIX -W foo same as long option --foo */ - if (temp[0] == 'W' && temp[1] == ';') + if (temp[0] == 'W' && temp[1] == ';' && longopts != NULL) { - char *nameend; - const struct option *p; - const struct option *pfound = NULL; - int exact = 0; - int ambig = 0; - int indfound = 0; - int option_index; - - if (longopts == NULL) - goto no_longs; - - /* This is an option that requires an argument. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - /* If we end this ARGV-element by taking the rest as an arg, - we must advance to the next element now. */ - d->optind++; - } - else if (d->optind == argc) - { - if (print_errors) - { -#if defined _LIBC - char *buf; - - if (__asprintf (&buf, - _("%s: option requires an argument -- '%c'\n"), - argv[0], c) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option requires an argument -- '%c'\n"), - argv[0], c); -#endif - } - d->optopt = c; - if (optstring[0] == ':') - c = ':'; - else - c = '?'; - return c; - } - else - /* We already incremented 'd->optind' once; - increment it again when taking next ARGV-elt as argument. */ - d->optarg = argv[d->optind++]; - - /* optarg is now the argument, see if it's in the - table of longopts. */ - - for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '='; - nameend++) - /* Do nothing. */ ; - - /* Test all long options for either exact match - or abbreviated matches. */ - for (p = longopts, option_index = 0; p->name; p++, option_index++) - if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar)) - { - if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name)) - { - /* Exact match found. */ - pfound = p; - indfound = option_index; - exact = 1; - break; - } - else if (pfound == NULL) - { - /* First nonexact match found. */ - pfound = p; - indfound = option_index; - } - else if (long_only - || pfound->has_arg != p->has_arg - || pfound->flag != p->flag - || pfound->val != p->val) - /* Second or later nonexact match found. */ - ambig = 1; - } - if (ambig && !exact) - { - if (print_errors) - { -#if defined _LIBC - char *buf; - - if (__asprintf (&buf, _("%s: option '-W %s' is ambiguous\n"), - argv[0], d->optarg) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"), - argv[0], d->optarg); -#endif - } - d->__nextchar += strlen (d->__nextchar); - d->optind++; - return '?'; - } - if (pfound != NULL) - { - option_index = indfound; - if (*nameend) - { - /* Don't test has_arg with >, because some C compilers don't - allow it to be used on enums. */ - if (pfound->has_arg) - d->optarg = nameend + 1; - else - { - if (print_errors) - { -#if defined _LIBC - char *buf; - - if (__asprintf (&buf, _("\ -%s: option '-W %s' doesn't allow an argument\n"), - argv[0], pfound->name) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("\ -%s: option '-W %s' doesn't allow an argument\n"), - argv[0], pfound->name); -#endif - } - - d->__nextchar += strlen (d->__nextchar); - return '?'; - } - } - else if (pfound->has_arg == 1) - { - if (d->optind < argc) - d->optarg = argv[d->optind++]; - else - { - if (print_errors) - { -#if defined _LIBC - char *buf; - - if (__asprintf (&buf, _("\ -%s: option '-W %s' requires an argument\n"), - argv[0], pfound->name) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 - |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, _("\ -%s: option '-W %s' requires an argument\n"), - argv[0], pfound->name); -#endif - } - d->__nextchar += strlen (d->__nextchar); - return optstring[0] == ':' ? ':' : '?'; - } - } - else - d->optarg = NULL; - d->__nextchar += strlen (d->__nextchar); - if (longind != NULL) - *longind = option_index; - if (pfound->flag) - { - *(pfound->flag) = pfound->val; - return 0; - } - return pfound->val; - } - - no_longs: - d->__nextchar = NULL; - return 'W'; /* Let the application handle it. */ + /* This is an option that requires an argument. */ + if (*d->__nextchar != '\0') + d->optarg = d->__nextchar; + else if (d->optind == argc) + { + if (print_errors) + fprintf (stderr, + _("%s: option requires an argument -- '%c'\n"), + argv[0], c); + + d->optopt = c; + if (optstring[0] == ':') + c = ':'; + else + c = '?'; + return c; + } + else + d->optarg = argv[d->optind]; + + d->__nextchar = d->optarg; + d->optarg = NULL; + return process_long_option (argc, argv, optstring, longopts, longind, + 0 /* long_only */, d, print_errors, "-W "); } if (temp[1] == ':') { - if (temp[2] == ':') - { - /* This is an option that accepts an argument optionally. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - d->optind++; - } - else - d->optarg = NULL; - d->__nextchar = NULL; - } - else - { - /* This is an option that requires an argument. */ - if (*d->__nextchar != '\0') - { - d->optarg = d->__nextchar; - /* If we end this ARGV-element by taking the rest as an arg, - we must advance to the next element now. */ - d->optind++; - } - else if (d->optind == argc) - { - if (print_errors) - { -#if defined _LIBC - char *buf; - - if (__asprintf (&buf, _("\ -%s: option requires an argument -- '%c'\n"), - argv[0], c) >= 0) - { - _IO_flockfile (stderr); - - int old_flags2 = ((_IO_FILE *) stderr)->_flags2; - ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL; - - __fxprintf (NULL, "%s", buf); - - ((_IO_FILE *) stderr)->_flags2 = old_flags2; - _IO_funlockfile (stderr); - - free (buf); - } -#else - fprintf (stderr, - _("%s: option requires an argument -- '%c'\n"), - argv[0], c); -#endif - } - d->optopt = c; - if (optstring[0] == ':') - c = ':'; - else - c = '?'; - } - else - /* We already incremented 'optind' once; - increment it again when taking next ARGV-elt as argument. */ - d->optarg = argv[d->optind++]; - d->__nextchar = NULL; - } + if (temp[2] == ':') + { + /* This is an option that accepts an argument optionally. */ + if (*d->__nextchar != '\0') + { + d->optarg = d->__nextchar; + d->optind++; + } + else + d->optarg = NULL; + d->__nextchar = NULL; + } + else + { + /* This is an option that requires an argument. */ + if (*d->__nextchar != '\0') + { + d->optarg = d->__nextchar; + /* If we end this ARGV-element by taking the rest as an arg, + we must advance to the next element now. */ + d->optind++; + } + else if (d->optind == argc) + { + if (print_errors) + fprintf (stderr, + _("%s: option requires an argument -- '%c'\n"), + argv[0], c); + + d->optopt = c; + if (optstring[0] == ':') + c = ':'; + else + c = '?'; + } + else + /* We already incremented 'optind' once; + increment it again when taking next ARGV-elt as argument. */ + d->optarg = argv[d->optind++]; + d->__nextchar = NULL; + } } return c; } @@ -1156,8 +700,8 @@ _getopt_internal_r (int argc, char **argv, const char *optstring, int _getopt_internal (int argc, char **argv, const char *optstring, - const struct option *longopts, int *longind, int long_only, - int posixly_correct) + const struct option *longopts, int *longind, int long_only, + int posixly_correct) { int result; @@ -1165,8 +709,8 @@ _getopt_internal (int argc, char **argv, const char *optstring, getopt_data.opterr = opterr; result = _getopt_internal_r (argc, argv, optstring, longopts, - longind, long_only, &getopt_data, - posixly_correct); + longind, long_only, &getopt_data, + posixly_correct); optind = getopt_data.optind; optarg = getopt_data.optarg; @@ -1175,32 +719,23 @@ _getopt_internal (int argc, char **argv, const char *optstring, return result; } -/* glibc gets a LSB-compliant getopt. - Standalone applications get a POSIX-compliant getopt. */ -#if _LIBC -enum { POSIXLY_CORRECT = 0 }; -#else -enum { POSIXLY_CORRECT = 1 }; -#endif - -int -getopt (int argc, char *const *argv, const char *optstring) -{ - return _getopt_internal (argc, (char **) argv, optstring, - (const struct option *) 0, - (int *) 0, - 0, POSIXLY_CORRECT); -} +/* glibc gets a LSB-compliant getopt and a POSIX-complaint __posix_getopt. + Standalone applications just get a POSIX-compliant getopt. + POSIX and LSB both require these functions to take 'char *const *argv' + even though this is incorrect (because of the permutation). */ +#define GETOPT_ENTRY(NAME, POSIXLY_CORRECT) \ + int \ + NAME (int argc, char *const *argv, const char *optstring) \ + { \ + return _getopt_internal (argc, (char **)argv, optstring, \ + 0, 0, 0, POSIXLY_CORRECT); \ + } #ifdef _LIBC -int -__posix_getopt (int argc, char *const *argv, const char *optstring) -{ - return _getopt_internal (argc, argv, optstring, - (const struct option *) 0, - (int *) 0, - 0, 1); -} +GETOPT_ENTRY(getopt, 0) +GETOPT_ENTRY(__posix_getopt, 1) +#else +GETOPT_ENTRY(getopt, 1) #endif @@ -1221,51 +756,51 @@ main (int argc, char **argv) c = getopt (argc, argv, "abc:d:0123456789"); if (c == -1) - break; + break; switch (c) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - if (digit_optind != 0 && digit_optind != this_option_optind) - printf ("digits occur in two different argv-elements.\n"); - digit_optind = this_option_optind; - printf ("option %c\n", c); - break; - - case 'a': - printf ("option a\n"); - break; - - case 'b': - printf ("option b\n"); - break; - - case 'c': - printf ("option c with value '%s'\n", optarg); - break; - - case '?': - break; - - default: - printf ("?? getopt returned character code 0%o ??\n", c); - } + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + if (digit_optind != 0 && digit_optind != this_option_optind) + printf ("digits occur in two different argv-elements.\n"); + digit_optind = this_option_optind; + printf ("option %c\n", c); + break; + + case 'a': + printf ("option a\n"); + break; + + case 'b': + printf ("option b\n"); + break; + + case 'c': + printf ("option c with value '%s'\n", optarg); + break; + + case '?': + break; + + default: + printf ("?? getopt returned character code 0%o ??\n", c); + } } if (optind < argc) { printf ("non-option ARGV-elements: "); while (optind < argc) - printf ("%s ", argv[optind++]); + printf ("%s ", argv[optind++]); printf ("\n"); } diff --git a/lib/getopt.in.h b/lib/getopt.in.h index 3f57c68a25e..91e086c0207 100644 --- a/lib/getopt.in.h +++ b/lib/getopt.in.h @@ -1,20 +1,22 @@ /* Declarations for getopt. Copyright (C) 1989-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public - License as published by the Free Software Foundation; either - version 3 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of + This file is part of gnulib. + Unlike most of the getopt implementation, it is NOT shared + with the GNU C Library, which supplies a different version of + this file. + + gnulib is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 3 of + the License, or (at your option) any later version. + + gnulib is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + License along with gnulib; if not, see <http://www.gnu.org/licenses/>. */ #ifndef _@GUARD_PREFIX@_GETOPT_H @@ -32,249 +34,26 @@ # undef _GL_SYSTEM_GETOPT #endif -#ifndef _@GUARD_PREFIX@_GETOPT_H - -#ifndef __need_getopt -# define _@GUARD_PREFIX@_GETOPT_H 1 -#endif +#define _@GUARD_PREFIX@_GETOPT_H 1 /* Standalone applications should #define __GETOPT_PREFIX to an identifier that prefixes the external functions and variables - defined in this header. When this happens, include the - headers that might declare getopt so that they will not cause - confusion if included after this file (if the system had <getopt.h>, - we have already included it). Then systematically rename - identifiers so that they do not collide with the system functions - and variables. Renaming avoids problems with some compilers and - linkers. */ + defined in getopt_core.h and getopt_ext.h. When this happens, + include the headers that might declare getopt so that they will not + cause confusion if included after this file (if the system had + <getopt.h>, we have already included it). */ #if defined __GETOPT_PREFIX -# if !defined __need_getopt -# if !@HAVE_GETOPT_H@ -# define __need_system_stdlib_h -# include <stdlib.h> -# undef __need_system_stdlib_h -# include <stdio.h> -# include <unistd.h> -# endif -# undef __need_getopt -# endif -# undef __GETOPT_CONCAT -# undef __GETOPT_XCONCAT -# undef __GETOPT_ID -# undef getopt -# undef getopt_long -# undef getopt_long_only -# undef optarg -# undef opterr -# undef optind -# undef optopt -# undef option -# undef _getopt_internal -# define __GETOPT_CONCAT(x, y) x ## y -# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y) -# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y) -# define getopt __GETOPT_ID (getopt) -# define getopt_long __GETOPT_ID (getopt_long) -# define getopt_long_only __GETOPT_ID (getopt_long_only) -# define optarg __GETOPT_ID (optarg) -# define opterr __GETOPT_ID (opterr) -# define optind __GETOPT_ID (optind) -# define optopt __GETOPT_ID (optopt) -# define option __GETOPT_ID (option) -# define _getopt_internal __GETOPT_ID (getopt_internal) -#endif - -/* Standalone applications get correct prototypes for getopt_long and - getopt_long_only; they declare "char **argv". libc uses prototypes - with "char *const *argv" that are incorrect because getopt_long and - getopt_long_only can permute argv; this is required for backward - compatibility (e.g., for LSB 2.0.1). - - This used to be '#if defined __GETOPT_PREFIX && !defined __need_getopt', - but it caused redefinition warnings if both unistd.h and getopt.h were - included, since unistd.h includes getopt.h having previously defined - __need_getopt. - - The only place where __getopt_argv_const is used is in definitions - of getopt_long and getopt_long_only below, but these are visible - only if __need_getopt is not defined, so it is quite safe to rewrite - the conditional as follows: -*/ -#if !defined __need_getopt -# if defined __GETOPT_PREFIX -# define __getopt_argv_const /* empty */ -# else -# define __getopt_argv_const const -# endif -#endif - -/* If __GNU_LIBRARY__ is not already defined, either we are being used - standalone, or this is the first header included in the source file. - If we are being used with glibc, we need to include <features.h>, but - that does not exist if we are standalone. So: if __GNU_LIBRARY__ is - not defined, include <ctype.h>, which will pull in <features.h> for us - if it's from glibc. (Why ctype.h? It's guaranteed to exist and it - doesn't flood the namespace with stuff the way some other headers do.) */ -#if !defined __GNU_LIBRARY__ -# include <ctype.h> -#endif - -#ifndef __THROW -# ifndef __GNUC_PREREQ -# define __GNUC_PREREQ(maj, min) (0) -# endif -# if defined __cplusplus && __GNUC_PREREQ (2,8) -# define __THROW throw () -# else -# define __THROW +# if !@HAVE_GETOPT_H@ +# define __need_system_stdlib_h +# include <stdlib.h> +# undef __need_system_stdlib_h +# include <stdio.h> +# include <unistd.h> # endif #endif -/* The definition of _GL_ARG_NONNULL is copied here. */ - -#ifdef __cplusplus -extern "C" { -#endif - -/* For communication from 'getopt' to the caller. - When 'getopt' finds an option that takes an argument, - the argument value is returned here. - Also, when 'ordering' is RETURN_IN_ORDER, - each non-option ARGV-element is returned here. */ - -extern char *optarg; - -/* Index in ARGV of the next element to be scanned. - This is used for communication to and from the caller - and for communication between successive calls to 'getopt'. - - On entry to 'getopt', zero means this is the first call; initialize. - - When 'getopt' returns -1, this is the index of the first of the - non-option elements that the caller should itself scan. - - Otherwise, 'optind' communicates from one call to the next - how much of ARGV has been scanned so far. */ - -extern int optind; - -/* Callers store zero here to inhibit the error message 'getopt' prints - for unrecognized options. */ - -extern int opterr; - -/* Set to an option character which was unrecognized. */ +#include <getopt_cdefs.h> +#include <getopt_pfx_core.h> +#include <getopt_pfx_ext.h> -extern int optopt; - -#ifndef __need_getopt -/* Describe the long-named options requested by the application. - The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector - of 'struct option' terminated by an element containing a name which is - zero. - - The field 'has_arg' is: - no_argument (or 0) if the option does not take an argument, - required_argument (or 1) if the option requires an argument, - optional_argument (or 2) if the option takes an optional argument. - - If the field 'flag' is not NULL, it points to a variable that is set - to the value given in the field 'val' when the option is found, but - left unchanged if the option is not found. - - To have a long-named option do something other than set an 'int' to - a compiled-in constant, such as set a value from 'optarg', set the - option's 'flag' field to zero and its 'val' field to a nonzero - value (the equivalent single-letter option character, if there is - one). For long options that have a zero 'flag' field, 'getopt' - returns the contents of the 'val' field. */ - -# if !GNULIB_defined_struct_option -struct option -{ - const char *name; - /* has_arg can't be an enum because some compilers complain about - type mismatches in all the code that assumes it is an int. */ - int has_arg; - int *flag; - int val; -}; -# define GNULIB_defined_struct_option 1 -# endif - -/* Names for the values of the 'has_arg' field of 'struct option'. */ - -# define no_argument 0 -# define required_argument 1 -# define optional_argument 2 -#endif /* need getopt */ - - -/* Get definitions and prototypes for functions to process the - arguments in ARGV (ARGC of them, minus the program name) for - options given in OPTS. - - Return the option character from OPTS just read. Return -1 when - there are no more options. For unrecognized options, or options - missing arguments, 'optopt' is set to the option letter, and '?' is - returned. - - The OPTS string is a list of characters which are recognized option - letters, optionally followed by colons, specifying that that letter - takes an argument, to be placed in 'optarg'. - - If a letter in OPTS is followed by two colons, its argument is - optional. This behavior is specific to the GNU 'getopt'. - - The argument '--' causes premature termination of argument - scanning, explicitly telling 'getopt' that there are no more - options. - - If OPTS begins with '-', then non-option arguments are treated as - arguments to the option '\1'. This behavior is specific to the GNU - 'getopt'. If OPTS begins with '+', or POSIXLY_CORRECT is set in - the environment, then do not permute arguments. */ - -extern int getopt (int ___argc, char *const *___argv, const char *__shortopts) - __THROW _GL_ARG_NONNULL ((2, 3)); - -#ifndef __GETOPT_PREFIX -# if defined __need_getopt && defined __USE_POSIX2 \ - && !defined __USE_POSIX_IMPLICITLY && !defined __USE_GNU -/* The GNU getopt has more functionality than the standard version. The - additional functionality can be disable at runtime. This redirection - helps to also do this at runtime. */ -# ifdef __REDIRECT - extern int __REDIRECT_NTH (getopt, (int ___argc, char *const *___argv, - const char *__shortopts), - __posix_getopt); -# else -extern int __posix_getopt (int ___argc, char *const *___argv, - const char *__shortopts) - __THROW _GL_ARG_NONNULL ((2, 3)); -# define getopt __posix_getopt -# endif -# endif -#endif - -#ifndef __need_getopt -extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv, - const char *__shortopts, - const struct option *__longopts, int *__longind) - __THROW _GL_ARG_NONNULL ((2, 3)); -extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv, - const char *__shortopts, - const struct option *__longopts, int *__longind) - __THROW _GL_ARG_NONNULL ((2, 3)); - -#endif - -#ifdef __cplusplus -} -#endif - -/* Make sure we later can get all the definitions and declarations. */ -#undef __need_getopt - -#endif /* _@GUARD_PREFIX@_GETOPT_H */ #endif /* _@GUARD_PREFIX@_GETOPT_H */ diff --git a/lib/getopt1.c b/lib/getopt1.c index 166b1295333..2bc5926016a 100644 --- a/lib/getopt1.c +++ b/lib/getopt1.c @@ -1,6 +1,7 @@ /* getopt_long and getopt_long_only entry points for GNU getopt. Copyright (C) 1987-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. + This file is part of the GNU C Library and is also part of gnulib. + Patches to this file should be submitted to both projects. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public @@ -16,41 +17,28 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#ifdef _LIBC -# include <getopt.h> -#else +#ifndef _LIBC # include <config.h> -# include "getopt.h" #endif -#include "getopt_int.h" - -#include <stdio.h> -/* This needs to come after some library #include - to get __GNU_LIBRARY__ defined. */ -#ifdef __GNU_LIBRARY__ -#include <stdlib.h> -#endif - -#ifndef NULL -#define NULL 0 -#endif +#include "getopt.h" +#include "getopt_int.h" int getopt_long (int argc, char *__getopt_argv_const *argv, const char *options, - const struct option *long_options, int *opt_index) + const struct option *long_options, int *opt_index) { return _getopt_internal (argc, (char **) argv, options, long_options, - opt_index, 0, 0); + opt_index, 0, 0); } int _getopt_long_r (int argc, char **argv, const char *options, - const struct option *long_options, int *opt_index, - struct _getopt_data *d) + const struct option *long_options, int *opt_index, + struct _getopt_data *d) { return _getopt_internal_r (argc, argv, options, long_options, opt_index, - 0, d, 0); + 0, d, 0); } /* Like getopt_long, but '-' as well as '--' can indicate a long option. @@ -60,26 +48,27 @@ _getopt_long_r (int argc, char **argv, const char *options, int getopt_long_only (int argc, char *__getopt_argv_const *argv, - const char *options, - const struct option *long_options, int *opt_index) + const char *options, + const struct option *long_options, int *opt_index) { return _getopt_internal (argc, (char **) argv, options, long_options, - opt_index, 1, 0); + opt_index, 1, 0); } int _getopt_long_only_r (int argc, char **argv, const char *options, - const struct option *long_options, int *opt_index, - struct _getopt_data *d) + const struct option *long_options, int *opt_index, + struct _getopt_data *d) { return _getopt_internal_r (argc, argv, options, long_options, opt_index, - 1, d, 0); + 1, d, 0); } #ifdef TEST #include <stdio.h> +#include <stdlib.h> int main (int argc, char **argv) @@ -93,74 +82,74 @@ main (int argc, char **argv) int option_index = 0; static const struct option long_options[] = { - {"add", 1, 0, 0}, - {"append", 0, 0, 0}, - {"delete", 1, 0, 0}, - {"verbose", 0, 0, 0}, - {"create", 0, 0, 0}, - {"file", 1, 0, 0}, - {0, 0, 0, 0} + {"add", 1, 0, 0}, + {"append", 0, 0, 0}, + {"delete", 1, 0, 0}, + {"verbose", 0, 0, 0}, + {"create", 0, 0, 0}, + {"file", 1, 0, 0}, + {0, 0, 0, 0} }; c = getopt_long (argc, argv, "abc:d:0123456789", - long_options, &option_index); + long_options, &option_index); if (c == -1) - break; + break; switch (c) - { - case 0: - printf ("option %s", long_options[option_index].name); - if (optarg) - printf (" with arg %s", optarg); - printf ("\n"); - break; - - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - if (digit_optind != 0 && digit_optind != this_option_optind) - printf ("digits occur in two different argv-elements.\n"); - digit_optind = this_option_optind; - printf ("option %c\n", c); - break; - - case 'a': - printf ("option a\n"); - break; - - case 'b': - printf ("option b\n"); - break; - - case 'c': - printf ("option c with value '%s'\n", optarg); - break; - - case 'd': - printf ("option d with value '%s'\n", optarg); - break; - - case '?': - break; - - default: - printf ("?? getopt returned character code 0%o ??\n", c); - } + { + case 0: + printf ("option %s", long_options[option_index].name); + if (optarg) + printf (" with arg %s", optarg); + printf ("\n"); + break; + + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + if (digit_optind != 0 && digit_optind != this_option_optind) + printf ("digits occur in two different argv-elements.\n"); + digit_optind = this_option_optind; + printf ("option %c\n", c); + break; + + case 'a': + printf ("option a\n"); + break; + + case 'b': + printf ("option b\n"); + break; + + case 'c': + printf ("option c with value '%s'\n", optarg); + break; + + case 'd': + printf ("option d with value '%s'\n", optarg); + break; + + case '?': + break; + + default: + printf ("?? getopt returned character code 0%o ??\n", c); + } } if (optind < argc) { printf ("non-option ARGV-elements: "); while (optind < argc) - printf ("%s ", argv[optind++]); + printf ("%s ", argv[optind++]); printf ("\n"); } diff --git a/lib/getopt_cdefs.in.h b/lib/getopt_cdefs.in.h new file mode 100644 index 00000000000..18f9fb4f98a --- /dev/null +++ b/lib/getopt_cdefs.in.h @@ -0,0 +1,75 @@ +/* getopt-on-non-glibc compatibility macros. + Copyright (C) 1989-2017 Free Software Foundation, Inc. + This file is part of gnulib. + Unlike most of the getopt implementation, it is NOT shared + with the GNU C Library. + + gnulib is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 3 of + the License, or (at your option) any later version. + + gnulib is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with gnulib; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _GETOPT_CDEFS_H +#define _GETOPT_CDEFS_H 1 + +/* This header should not be used directly; include getopt.h or + unistd.h instead. It does not have a protective #error, because + the guard macro for getopt.h in gnulib is not fixed. */ + +/* getopt_core.h and getopt_ext.h are shared with GNU libc, and expect + a number of the internal macros supplied to GNU libc's headers by + sys/cdefs.h. Provide fallback definitions for all of them. */ +#if @HAVE_SYS_CDEFS_H@ +# include <sys/cdefs.h> +#endif + +#ifndef __BEGIN_DECLS +# ifdef __cplusplus +# define __BEGIN_DECLS extern "C" { +# else +# define __BEGIN_DECLS /* nothing */ +# endif +#endif +#ifndef __END_DECLS +# ifdef __cplusplus +# define __END_DECLS } +# else +# define __END_DECLS /* nothing */ +# endif +#endif + +#ifndef __GNUC_PREREQ +# if defined __GNUC__ && defined __GNUC_VERSION__ +# define __GNUC_PREREQ(maj, min) \ + ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) +# else +# define __GNUC_PREREQ(maj, min) 0 +# endif +#endif + +#ifndef __THROW +# if defined __cplusplus && __GNUC_PREREQ (2,8) +# define __THROW throw () +# else +# define __THROW +# endif +#endif + +#ifndef __nonnull +# if __GNUC_PREREQ (3,3) +# define __nonnull(params) __attribute__ ((__nonnull__ params)) +# else +# define __nonnull(params) +# endif +#endif + +#endif /* getopt_cdefs.h */ diff --git a/lib/getopt_core.h b/lib/getopt_core.h new file mode 100644 index 00000000000..d6ef8a6b782 --- /dev/null +++ b/lib/getopt_core.h @@ -0,0 +1,96 @@ +/* Declarations for getopt (basic, portable features only). + Copyright (C) 1989-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library and is also part of gnulib. + Patches to this file should be submitted to both projects. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _GETOPT_CORE_H +#define _GETOPT_CORE_H 1 + +/* This header should not be used directly; include getopt.h or + unistd.h instead. Unlike most bits headers, it does not have + a protective #error, because the guard macro for getopt.h in + gnulib is not fixed. */ + +__BEGIN_DECLS + +/* For communication from 'getopt' to the caller. + When 'getopt' finds an option that takes an argument, + the argument value is returned here. + Also, when 'ordering' is RETURN_IN_ORDER, + each non-option ARGV-element is returned here. */ + +extern char *optarg; + +/* Index in ARGV of the next element to be scanned. + This is used for communication to and from the caller + and for communication between successive calls to 'getopt'. + + On entry to 'getopt', zero means this is the first call; initialize. + + When 'getopt' returns -1, this is the index of the first of the + non-option elements that the caller should itself scan. + + Otherwise, 'optind' communicates from one call to the next + how much of ARGV has been scanned so far. */ + +extern int optind; + +/* Callers store zero here to inhibit the error message 'getopt' prints + for unrecognized options. */ + +extern int opterr; + +/* Set to an option character which was unrecognized. */ + +extern int optopt; + +/* Get definitions and prototypes for functions to process the + arguments in ARGV (ARGC of them, minus the program name) for + options given in OPTS. + + Return the option character from OPTS just read. Return -1 when + there are no more options. For unrecognized options, or options + missing arguments, 'optopt' is set to the option letter, and '?' is + returned. + + The OPTS string is a list of characters which are recognized option + letters, optionally followed by colons, specifying that that letter + takes an argument, to be placed in 'optarg'. + + If a letter in OPTS is followed by two colons, its argument is + optional. This behavior is specific to the GNU 'getopt'. + + The argument '--' causes premature termination of argument + scanning, explicitly telling 'getopt' that there are no more + options. + + If OPTS begins with '-', then non-option arguments are treated as + arguments to the option '\1'. This behavior is specific to the GNU + 'getopt'. If OPTS begins with '+', or POSIXLY_CORRECT is set in + the environment, then do not permute arguments. + + For standards compliance, the 'argv' argument has the type + char *const *, but this is inaccurate; if argument permutation is + enabled, the argv array (not the strings it points to) must be + writable. */ + +extern int getopt (int ___argc, char *const *___argv, const char *__shortopts) + __THROW __nonnull ((2, 3)); + +__END_DECLS + +#endif /* getopt_core.h */ diff --git a/lib/getopt_ext.h b/lib/getopt_ext.h new file mode 100644 index 00000000000..79b7a670d58 --- /dev/null +++ b/lib/getopt_ext.h @@ -0,0 +1,77 @@ +/* Declarations for getopt (GNU extensions). + Copyright (C) 1989-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library and is also part of gnulib. + Patches to this file should be submitted to both projects. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _GETOPT_EXT_H +#define _GETOPT_EXT_H 1 + +/* This header should not be used directly; include getopt.h instead. + Unlike most bits headers, it does not have a protective #error, + because the guard macro for getopt.h in gnulib is not fixed. */ + +__BEGIN_DECLS + +/* Describe the long-named options requested by the application. + The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector + of 'struct option' terminated by an element containing a name which is + zero. + + The field 'has_arg' is: + no_argument (or 0) if the option does not take an argument, + required_argument (or 1) if the option requires an argument, + optional_argument (or 2) if the option takes an optional argument. + + If the field 'flag' is not NULL, it points to a variable that is set + to the value given in the field 'val' when the option is found, but + left unchanged if the option is not found. + + To have a long-named option do something other than set an 'int' to + a compiled-in constant, such as set a value from 'optarg', set the + option's 'flag' field to zero and its 'val' field to a nonzero + value (the equivalent single-letter option character, if there is + one). For long options that have a zero 'flag' field, 'getopt' + returns the contents of the 'val' field. */ + +struct option +{ + const char *name; + /* has_arg can't be an enum because some compilers complain about + type mismatches in all the code that assumes it is an int. */ + int has_arg; + int *flag; + int val; +}; + +/* Names for the values of the 'has_arg' field of 'struct option'. */ + +#define no_argument 0 +#define required_argument 1 +#define optional_argument 2 + +extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv, + const char *__shortopts, + const struct option *__longopts, int *__longind) + __THROW __nonnull ((2, 3)); +extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv, + const char *__shortopts, + const struct option *__longopts, int *__longind) + __THROW __nonnull ((2, 3)); + +__END_DECLS + +#endif /* getopt_ext.h */ diff --git a/lib/getopt_int.h b/lib/getopt_int.h index c614fcb65be..a5562195123 100644 --- a/lib/getopt_int.h +++ b/lib/getopt_int.h @@ -1,6 +1,7 @@ /* Internal declarations for getopt. Copyright (C) 1989-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. + This file is part of the GNU C Library and is also part of gnulib. + Patches to this file should be submitted to both projects. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public @@ -17,14 +18,14 @@ <http://www.gnu.org/licenses/>. */ #ifndef _GETOPT_INT_H -#define _GETOPT_INT_H 1 +#define _GETOPT_INT_H 1 #include <getopt.h> extern int _getopt_internal (int ___argc, char **___argv, - const char *__shortopts, - const struct option *__longopts, int *__longind, - int __long_only, int __posixly_correct); + const char *__shortopts, + const struct option *__longopts, int *__longind, + int __long_only, int __posixly_correct); /* Reentrant versions which can handle parsing multiple argument @@ -32,28 +33,20 @@ extern int _getopt_internal (int ___argc, char **___argv, /* Describe how to deal with options that follow non-option ARGV-elements. - If the caller did not specify anything, - the default is REQUIRE_ORDER if the environment variable - POSIXLY_CORRECT is defined, PERMUTE otherwise. + REQUIRE_ORDER means don't recognize them as options; stop option + processing when the first non-option is seen. This is what POSIX + specifies should happen. - REQUIRE_ORDER means don't recognize them as options; - stop option processing when the first non-option is seen. - This is what Unix does. - This mode of operation is selected by either setting the environment - variable POSIXLY_CORRECT, or using '+' as the first character - of the list of option characters, or by calling getopt. - - PERMUTE is the default. We permute the contents of ARGV as we - scan, so that eventually all the non-options are at the end. - This allows options to be given in any order, even with programs - that were not written to expect this. + PERMUTE means permute the contents of ARGV as we scan, so that + eventually all the non-options are at the end. This allows options + to be given in any order, even with programs that were not written + to expect this. RETURN_IN_ORDER is an option available to programs that were written to expect options and other ARGV-elements in any order and that care about the ordering of the two. We describe each non-option ARGV-element as if it were the argument of an option - with character code 1. Using '-' as the first character of the - list of option characters selects this mode of operation. + with character code 1. The special argument '--' forces an end of option-scanning regardless of the value of 'ordering'. In the case of RETURN_IN_ORDER, only @@ -91,11 +84,6 @@ struct _getopt_data /* See __ord above. */ enum __ord __ordering; - /* If the POSIXLY_CORRECT environment variable is set - or getopt was called. */ - int __posixly_correct; - - /* Handle permutation of arguments. */ /* Describe the part of ARGV that contains non-options that have @@ -104,32 +92,27 @@ struct _getopt_data int __first_nonopt; int __last_nonopt; - -#if defined _LIBC && defined USE_NONOPTION_FLAGS - int __nonoption_flags_max_len; - int __nonoption_flags_len; -#endif }; /* The initializer is necessary to set OPTIND and OPTERR to their default values and to clear the initialization flag. */ -#define _GETOPT_DATA_INITIALIZER { 1, 1 } +#define _GETOPT_DATA_INITIALIZER { 1, 1 } extern int _getopt_internal_r (int ___argc, char **___argv, - const char *__shortopts, - const struct option *__longopts, int *__longind, - int __long_only, struct _getopt_data *__data, - int __posixly_correct); + const char *__shortopts, + const struct option *__longopts, int *__longind, + int __long_only, struct _getopt_data *__data, + int __posixly_correct); extern int _getopt_long_r (int ___argc, char **___argv, - const char *__shortopts, - const struct option *__longopts, int *__longind, - struct _getopt_data *__data); + const char *__shortopts, + const struct option *__longopts, int *__longind, + struct _getopt_data *__data); extern int _getopt_long_only_r (int ___argc, char **___argv, - const char *__shortopts, - const struct option *__longopts, - int *__longind, - struct _getopt_data *__data); + const char *__shortopts, + const struct option *__longopts, + int *__longind, + struct _getopt_data *__data); #endif /* getopt_int.h */ diff --git a/lib/getopt_pfx_core.h b/lib/getopt_pfx_core.h new file mode 100644 index 00000000000..d585a08ce9f --- /dev/null +++ b/lib/getopt_pfx_core.h @@ -0,0 +1,54 @@ +/* getopt (basic, portable features) gnulib wrapper header. + Copyright (C) 1989-2017 Free Software Foundation, Inc. + This file is part of gnulib. + Unlike most of the getopt implementation, it is NOT shared + with the GNU C Library. + + gnulib is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 3 of + the License, or (at your option) any later version. + + gnulib is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with gnulib; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _GETOPT_PFX_CORE_H +#define _GETOPT_PFX_CORE_H 1 + +/* This header should not be used directly; include getopt.h or + unistd.h instead. It does not have a protective #error, because + the guard macro for getopt.h in gnulib is not fixed. */ + +/* Standalone applications should #define __GETOPT_PREFIX to an + identifier that prefixes the external functions and variables + defined in getopt_core.h and getopt_ext.h. Systematically + rename identifiers so that they do not collide with the system + functions and variables. Renaming avoids problems with some + compilers and linkers. */ +#ifdef __GETOPT_PREFIX +# ifndef __GETOPT_ID +# define __GETOPT_CONCAT(x, y) x ## y +# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y) +# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y) +# endif +# undef getopt +# undef optarg +# undef opterr +# undef optind +# undef optopt +# define getopt __GETOPT_ID (getopt) +# define optarg __GETOPT_ID (optarg) +# define opterr __GETOPT_ID (opterr) +# define optind __GETOPT_ID (optind) +# define optopt __GETOPT_ID (optopt) +#endif + +#include <getopt_core.h> + +#endif /* getopt_pfx_core.h */ diff --git a/lib/getopt_pfx_ext.h b/lib/getopt_pfx_ext.h new file mode 100644 index 00000000000..3da156a09ba --- /dev/null +++ b/lib/getopt_pfx_ext.h @@ -0,0 +1,64 @@ +/* getopt (GNU extensions) gnulib wrapper header. + Copyright (C) 1989-2017 Free Software Foundation, Inc. + This file is part of gnulib. + Unlike most of the getopt implementation, it is NOT shared + with the GNU C Library. + + gnulib is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 3 of + the License, or (at your option) any later version. + + gnulib is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with gnulib; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _GETOPT_PFX_EXT_H +#define _GETOPT_PFX_EXT_H 1 + +/* This header should not be used directly; include getopt.h instead. + It does not have a protective #error, because the guard macro for + getopt.h in gnulib is not fixed. */ + +/* Standalone applications should #define __GETOPT_PREFIX to an + identifier that prefixes the external functions and variables + defined in getopt_core.h and getopt_ext.h. Systematically + rename identifiers so that they do not collide with the system + functions and variables. Renaming avoids problems with some + compilers and linkers. */ +#ifdef __GETOPT_PREFIX +# ifndef __GETOPT_ID +# define __GETOPT_CONCAT(x, y) x ## y +# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y) +# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y) +# endif +# undef getopt_long +# undef getopt_long_only +# undef option +# define getopt_long __GETOPT_ID (getopt_long) +# define getopt_long_only __GETOPT_ID (getopt_long_only) +# define option __GETOPT_ID (option) +#endif + +/* Standalone applications get correct prototypes for getopt_long and + getopt_long_only; they declare "char **argv". For backward + compatibility with old applications, if __GETOPT_PREFIX is not + defined, we supply GNU-libc-compatible, but incorrect, prototypes + using "char *const *argv". (GNU libc is stuck with the incorrect + prototypes, as they are baked into older versions of LSB.) */ +#ifndef __getopt_argv_const +# if defined __GETOPT_PREFIX +# define __getopt_argv_const /* empty */ +# else +# define __getopt_argv_const const +# endif +#endif + +#include <getopt_ext.h> + +#endif /* getopt_pfx_ext.h */ diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in index ca95ed7e825..38adf2a9f76 100644 --- a/lib/gnulib.mk.in +++ b/lib/gnulib.mk.in @@ -84,6 +84,7 @@ EOVERFLOW_VALUE = @EOVERFLOW_VALUE@ ERRNO_H = @ERRNO_H@ EXECINFO_H = @EXECINFO_H@ EXEEXT = @EXEEXT@ +FIND_DELETE = @FIND_DELETE@ FIRSTFILE_OBJ = @FIRSTFILE_OBJ@ FONTCONFIG_CFLAGS = @FONTCONFIG_CFLAGS@ FONTCONFIG_LIBS = @FONTCONFIG_LIBS@ @@ -94,6 +95,7 @@ GCONF_CFLAGS = @GCONF_CFLAGS@ GCONF_LIBS = @GCONF_LIBS@ GETADDRINFO_A_LIBS = @GETADDRINFO_A_LIBS@ GETLOADAVG_LIBS = @GETLOADAVG_LIBS@ +GETOPT_CDEFS_H = @GETOPT_CDEFS_H@ GETOPT_H = @GETOPT_H@ GFILENOTIFY_CFLAGS = @GFILENOTIFY_CFLAGS@ GFILENOTIFY_LIBS = @GFILENOTIFY_LIBS@ @@ -488,6 +490,7 @@ HAVE_STRVERSCMP = @HAVE_STRVERSCMP@ HAVE_SYMLINK = @HAVE_SYMLINK@ HAVE_SYMLINKAT = @HAVE_SYMLINKAT@ HAVE_SYS_BITYPES_H = @HAVE_SYS_BITYPES_H@ +HAVE_SYS_CDEFS_H = @HAVE_SYS_CDEFS_H@ HAVE_SYS_INTTYPES_H = @HAVE_SYS_INTTYPES_H@ HAVE_SYS_LOADAVG_H = @HAVE_SYS_LOADAVG_H@ HAVE_SYS_PARAM_H = @HAVE_SYS_PARAM_H@ @@ -1511,11 +1514,11 @@ endif ## begin gnulib module getopt-posix ifeq (,$(OMIT_GNULIB_MODULE_getopt-posix)) -BUILT_SOURCES += $(GETOPT_H) +BUILT_SOURCES += $(GETOPT_H) $(GETOPT_CDEFS_H) # We need the following in order to create <getopt.h> when the system # doesn't have one that works with the given compiler. -getopt.h: getopt.in.h $(top_builddir)/config.status $(ARG_NONNULL_H) +getopt.h: getopt.in.h $(top_builddir)/config.status $(AM_V_GEN)rm -f $@-t $@ && \ { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \ sed -e 's|@''GUARD_PREFIX''@|GL|g' \ @@ -1524,13 +1527,21 @@ getopt.h: getopt.in.h $(top_builddir)/config.status $(ARG_NONNULL_H) -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \ -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \ -e 's|@''NEXT_GETOPT_H''@|$(NEXT_GETOPT_H)|g' \ - -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \ < $(srcdir)/getopt.in.h; \ } > $@-t && \ mv -f $@-t $@ -MOSTLYCLEANFILES += getopt.h getopt.h-t -EXTRA_DIST += getopt.c getopt.in.h getopt1.c getopt_int.h +getopt_cdefs.h: getopt_cdefs.in.h $(top_builddir)/config.status + $(AM_V_GEN)rm -f $@-t $@ && \ + { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \ + sed -e 's|@''HAVE_SYS_CDEFS_H''@|$(HAVE_SYS_CDEFS_H)|g' \ + < $(srcdir)/getopt_cdefs.in.h; \ + } > $@-t && \ + mv -f $@-t $@ + +MOSTLYCLEANFILES += getopt.h getopt.h-t getopt_cdefs.h getopt_cdefs.h-t + +EXTRA_DIST += getopt.c getopt.in.h getopt1.c getopt_cdefs.in.h getopt_core.h getopt_ext.h getopt_int.h getopt_pfx_core.h getopt_pfx_ext.h EXTRA_libgnu_a_SOURCES += getopt.c getopt1.c diff --git a/lib/md5.c b/lib/md5.c index e82b0514a0a..dcbba45ddff 100644 --- a/lib/md5.c +++ b/lib/md5.c @@ -246,7 +246,8 @@ md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx) md5_process_block (ctx->buffer, ctx->buflen & ~63, ctx); ctx->buflen &= 63; - /* The regions in the following copy operation cannot overlap. */ + /* The regions in the following copy operation cannot overlap, + because ctx->buflen < 64 ≤ (left_over + add) & ~63. */ memcpy (ctx->buffer, &((char *) ctx->buffer)[(left_over + add) & ~63], ctx->buflen); @@ -288,6 +289,8 @@ md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx) { md5_process_block (ctx->buffer, 64, ctx); left_over -= 64; + /* The regions in the following copy operation cannot overlap, + because left_over ≤ 64. */ memcpy (ctx->buffer, &ctx->buffer[16], left_over); } ctx->buflen = left_over; diff --git a/lib/md5.h b/lib/md5.h index fb20b7b1bc2..e38a6198708 100644 --- a/lib/md5.h +++ b/lib/md5.h @@ -74,8 +74,8 @@ struct md5_ctx uint32_t D; uint32_t total[2]; - uint32_t buflen; - uint32_t buffer[32]; + uint32_t buflen; /* ≥ 0, ≤ 128 */ + uint32_t buffer[32]; /* 128 bytes; the first buflen bytes are in use */ }; /* diff --git a/lib/sha1.c b/lib/sha1.c index ea0474f2ce0..a57814131d6 100644 --- a/lib/sha1.c +++ b/lib/sha1.c @@ -233,7 +233,8 @@ sha1_process_bytes (const void *buffer, size_t len, struct sha1_ctx *ctx) sha1_process_block (ctx->buffer, ctx->buflen & ~63, ctx); ctx->buflen &= 63; - /* The regions in the following copy operation cannot overlap. */ + /* The regions in the following copy operation cannot overlap, + because ctx->buflen < 64 ≤ (left_over + add) & ~63. */ memcpy (ctx->buffer, &((char *) ctx->buffer)[(left_over + add) & ~63], ctx->buflen); @@ -275,6 +276,8 @@ sha1_process_bytes (const void *buffer, size_t len, struct sha1_ctx *ctx) { sha1_process_block (ctx->buffer, 64, ctx); left_over -= 64; + /* The regions in the following copy operation cannot overlap, + because left_over ≤ 64. */ memcpy (ctx->buffer, &ctx->buffer[16], left_over); } ctx->buflen = left_over; diff --git a/lib/sha1.h b/lib/sha1.h index 7d7e19a64fd..fcef9ce2c60 100644 --- a/lib/sha1.h +++ b/lib/sha1.h @@ -46,8 +46,8 @@ struct sha1_ctx uint32_t E; uint32_t total[2]; - uint32_t buflen; - uint32_t buffer[32]; + uint32_t buflen; /* ≥ 0, ≤ 128 */ + uint32_t buffer[32]; /* 128 bytes; the first buflen bytes are in use */ }; /* Initialize structure containing state of computation. */ diff --git a/lib/sha256.c b/lib/sha256.c index 03d3899ad27..c0fb8beecfe 100644 --- a/lib/sha256.c +++ b/lib/sha256.c @@ -366,7 +366,8 @@ sha256_process_bytes (const void *buffer, size_t len, struct sha256_ctx *ctx) sha256_process_block (ctx->buffer, ctx->buflen & ~63, ctx); ctx->buflen &= 63; - /* The regions in the following copy operation cannot overlap. */ + /* The regions in the following copy operation cannot overlap, + because ctx->buflen < 64 ≤ (left_over + add) & ~63. */ memcpy (ctx->buffer, &((char *) ctx->buffer)[(left_over + add) & ~63], ctx->buflen); @@ -408,6 +409,8 @@ sha256_process_bytes (const void *buffer, size_t len, struct sha256_ctx *ctx) { sha256_process_block (ctx->buffer, 64, ctx); left_over -= 64; + /* The regions in the following copy operation cannot overlap, + because left_over ≤ 64. */ memcpy (ctx->buffer, &ctx->buffer[16], left_over); } ctx->buflen = left_over; diff --git a/lib/sha256.h b/lib/sha256.h index ffb91fa47ef..348b76ef265 100644 --- a/lib/sha256.h +++ b/lib/sha256.h @@ -44,8 +44,8 @@ struct sha256_ctx uint32_t state[8]; uint32_t total[2]; - size_t buflen; - uint32_t buffer[32]; + size_t buflen; /* ≥ 0, ≤ 128 */ + uint32_t buffer[32]; /* 128 bytes; the first buflen bytes are in use */ }; /* Initialize structure containing state of computation. */ diff --git a/lib/sha512.c b/lib/sha512.c index 6876bfdb08c..dbde67183b7 100644 --- a/lib/sha512.c +++ b/lib/sha512.c @@ -374,7 +374,8 @@ sha512_process_bytes (const void *buffer, size_t len, struct sha512_ctx *ctx) sha512_process_block (ctx->buffer, ctx->buflen & ~127, ctx); ctx->buflen &= 127; - /* The regions in the following copy operation cannot overlap. */ + /* The regions in the following copy operation cannot overlap, + because ctx->buflen < 128 ≤ (left_over + add) & ~127. */ memcpy (ctx->buffer, &((char *) ctx->buffer)[(left_over + add) & ~127], ctx->buflen); @@ -416,6 +417,8 @@ sha512_process_bytes (const void *buffer, size_t len, struct sha512_ctx *ctx) { sha512_process_block (ctx->buffer, 128, ctx); left_over -= 128; + /* The regions in the following copy operation cannot overlap, + because left_over ≤ 128. */ memcpy (ctx->buffer, &ctx->buffer[16], left_over); } ctx->buflen = left_over; diff --git a/lib/sha512.h b/lib/sha512.h index 121e6c3a252..4460e6c9b76 100644 --- a/lib/sha512.h +++ b/lib/sha512.h @@ -44,8 +44,8 @@ struct sha512_ctx u64 state[8]; u64 total[2]; - size_t buflen; - u64 buffer[32]; + size_t buflen; /* ≥ 0, ≤ 256 */ + u64 buffer[32]; /* 256 bytes; the first buflen bytes are in use */ }; /* Initialize structure containing state of computation. */ diff --git a/lib/unistd.in.h b/lib/unistd.in.h index d5fa34dbe56..ed175bf8f2b 100644 --- a/lib/unistd.in.h +++ b/lib/unistd.in.h @@ -130,8 +130,8 @@ /* Get getopt(), optarg, optind, opterr, optopt. But avoid namespace pollution on glibc systems. */ #if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT -# define __need_getopt -# include <getopt.h> +# include <getopt_cdefs.h> +# include <getopt_pfx_core.h> #endif #ifndef _GL_INLINE_HEADER_BEGIN diff --git a/m4/getopt.m4 b/m4/getopt.m4 index 7a946263558..d90076922b2 100644 --- a/m4/getopt.m4 +++ b/m4/getopt.m4 @@ -1,4 +1,4 @@ -# getopt.m4 serial 44 +# getopt.m4 serial 45 dnl Copyright (C) 2002-2006, 2008-2017 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -33,8 +33,6 @@ AC_DEFUN([gl_FUNC_GETOPT_POSIX], AC_DEFUN([gl_FUNC_GETOPT_GNU], [ m4_divert_text([INIT_PREPARE], [gl_getopt_required=GNU]) - - AC_REQUIRE([gl_FUNC_GETOPT_POSIX]) ]) # Determine whether to replace the entire getopt facility. @@ -354,15 +352,19 @@ dnl is ambiguous with environment values that contain newlines. AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER], [ - GETOPT_H=getopt.h + AC_CHECK_HEADERS_ONCE([sys/cdefs.h]) + if test $ac_cv_header_sys_cdefs_h = yes; then + HAVE_SYS_CDEFS_H=1 + else + HAVE_SYS_CDEFS_H=0 + fi + AC_SUBST([HAVE_SYS_CDEFS_H]) + AC_DEFINE([__GETOPT_PREFIX], [[rpl_]], [Define to rpl_ if the getopt replacement functions and variables should be used.]) + GETOPT_H=getopt.h + GETOPT_CDEFS_H=getopt_cdefs.h AC_SUBST([GETOPT_H]) -]) - -# Prerequisites of lib/getopt*. -AC_DEFUN([gl_PREREQ_GETOPT], -[ - AC_CHECK_DECLS_ONCE([getenv]) + AC_SUBST([GETOPT_CDEFS_H]) ]) diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4 index e613490f1a4..5aea057c5d5 100644 --- a/m4/gnulib-comp.m4 +++ b/m4/gnulib-comp.m4 @@ -259,19 +259,10 @@ AC_DEFUN([gl_INIT], fi gl_STDLIB_MODULE_INDICATOR([getloadavg]) gl_FUNC_GETOPT_GNU - if test $REPLACE_GETOPT = 1; then - AC_LIBOBJ([getopt]) - AC_LIBOBJ([getopt1]) - gl_PREREQ_GETOPT - dnl Arrange for unistd.h to include getopt.h. - GNULIB_GL_UNISTD_H_GETOPT=1 - fi - AC_SUBST([GNULIB_GL_UNISTD_H_GETOPT]) gl_FUNC_GETOPT_POSIX if test $REPLACE_GETOPT = 1; then AC_LIBOBJ([getopt]) AC_LIBOBJ([getopt1]) - gl_PREREQ_GETOPT dnl Arrange for unistd.h to include getopt.h. GNULIB_GL_UNISTD_H_GETOPT=1 fi @@ -911,7 +902,12 @@ AC_DEFUN([gl_FILE_LIST], [ lib/getopt.c lib/getopt.in.h lib/getopt1.c + lib/getopt_cdefs.in.h + lib/getopt_core.h + lib/getopt_ext.h lib/getopt_int.h + lib/getopt_pfx_core.h + lib/getopt_pfx_ext.h lib/gettext.h lib/gettime.c lib/gettimeofday.c |