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Diffstat (limited to 'vmsfunctions.c')
| -rw-r--r-- | vmsfunctions.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/vmsfunctions.c b/vmsfunctions.c new file mode 100644 index 0000000..6ed136c --- /dev/null +++ b/vmsfunctions.c @@ -0,0 +1,226 @@ +/* VMS functions +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make 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. + +GNU Make 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 +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include "makeint.h" +#include "debug.h" +#include "job.h" + +#include <ctype.h> +#include <string.h> + +#ifdef __DECC +#include <starlet.h> +#endif + +#include <rms.h> +#include "vmsdir.h" + +#ifdef HAVE_VMSDIR_H + +DIR * +opendir (char *dspec) +{ + struct DIR *dir = xcalloc (sizeof (struct DIR)); + struct NAM *dnam = xmalloc (sizeof (struct NAM)); + struct FAB *dfab = &dir->fab; + char *searchspec = xmalloc (MAXNAMLEN + 1); + + *dfab = cc$rms_fab; + *dnam = cc$rms_nam; + sprintf (searchspec, "%s*.*;", dspec); + + dfab->fab$l_fna = searchspec; + dfab->fab$b_fns = strlen (searchspec); + dfab->fab$l_nam = dnam; + + *dnam = cc$rms_nam; + dnam->nam$l_esa = searchspec; + dnam->nam$b_ess = MAXNAMLEN; + + if (! (sys$parse (dfab) & 1)) + { + free (dir); + free (dnam); + free (searchspec); + return (NULL); + } + + return dir; +} + +#define uppercasify(str) \ + do \ + { \ + char *tmp; \ + for (tmp = (str); *tmp != '\0'; tmp++) \ + if (islower ((unsigned char)*tmp)) \ + *tmp = toupper ((unsigned char)*tmp); \ + } \ + while (0) + +struct direct * +readdir (DIR *dir) +{ + struct FAB *dfab = &dir->fab; + struct NAM *dnam = (struct NAM *)(dfab->fab$l_nam); + struct direct *dentry = &dir->dir; + int i; + + memset (dentry, 0, sizeof *dentry); + + dnam->nam$l_rsa = dir->d_result; + dnam->nam$b_rss = MAXNAMLEN; + + DB (DB_VERBOSE, (".")); + + if (!((i = sys$search (dfab)) & 1)) + { + DB (DB_VERBOSE, (_("sys$search() failed with %d\n"), i)); + return (NULL); + } + + dentry->d_off = 0; + if (dnam->nam$w_fid == 0) + dentry->d_fileno = 1; + else + dentry->d_fileno = dnam->nam$w_fid[0] + (dnam->nam$w_fid[1] << 16); + + dentry->d_reclen = sizeof (struct direct); + dentry->d_namlen = dnam->nam$b_name + dnam->nam$b_type; + strncpy (dentry->d_name, dnam->nam$l_name, dentry->d_namlen); + dentry->d_name[dentry->d_namlen] = '\0'; + +#ifdef HAVE_CASE_INSENSITIVE_FS + uppercasify (dentry->d_name); +#endif + + return (dentry); +} + +int +closedir (DIR *dir) +{ + if (dir != NULL) + { + struct FAB *dfab = &dir->fab; + struct NAM *dnam = (struct NAM *)(dfab->fab$l_nam); + if (dnam != NULL) + free (dnam->nam$l_esa); + free (dnam); + free (dir); + } + + return 0; +} +#endif /* compiled for OpenVMS prior to V7.x */ + +/* Argv0 will be a full vms file specification, like + node$dka100:[utils.gnumake]make.exe;47 + prefix it with "mcr " to make it a vms command, executable for DCL. */ +const char * +vms_command(const char* argv0) +{ + size_t l = strlen(argv0) + 1; + char* s = xmalloc(l + 4); + memcpy(s, "mcr ", 4); + memcpy(s+4, argv0, l); + return s; +} + +/* Argv0 aka argv[0] will be a full vms file specification, like + node$dka100:[utils.gnumake]make.exe;47, set up by the CRTL. + The vms progname should be ^^^^, the file name without + file type .exe and ;version. + Use sys$parse to get the name part of the file specification. That is + in the above example, pick up "make" and return a copy of that string. + If something goes wrong in sys$parse (unlikely, this is a VMS/CRTL supplied + file specification) or if there is an empty name part (not easy to produce, + but it is possible) just return "make". + Somes notes ... + NAM[L]$M_SYNCHK requests a syntax check, only. + NAM is for ODS2 names (shorter parts, output usually converted to UPPERCASE). + NAML is for ODS2/ODS5 names (longer parts, output unchanged). + NAM$M_NO_SHORT_UPCASE may not be available for older versions of VMS. + NAML is not available on older versions of VMS (NAML$C_BID not defined). + argv[0] on older versions of VMS (no extended parse style and no + CRTL feature DECC$ARGV_PARSE_STYLE) is always in lowercase. */ +const char * +vms_progname(const char* argv0) +{ + int status; + static struct FAB fab; + char *progname; + const char *fallback = "make"; + +#ifdef NAML$C_BID + static char esa[NAML$C_MAXRSS]; + static struct NAML naml; +#else + static char esa[NAM$C_MAXRSS]; + static struct NAM nam; +#endif + + fab = cc$rms_fab; + fab.fab$l_fna = (char*)argv0; + fab.fab$b_fns = strlen(argv0); + +#ifdef NAML$C_BID + fab.fab$l_naml = &naml; + naml = cc$rms_naml; + naml.naml$l_long_expand = esa; + naml.naml$l_long_expand_alloc = NAML$C_MAXRSS; + naml.naml$b_nop = NAML$M_SYNCHK; + naml.naml$l_input_flags = NAML$M_NO_SHORT_OUTPUT; +#else + fab.fab$l_nam = &nam; + nam = cc$rms_nam; + nam.nam$l_esa = esa; + nam.nam$b_ess = NAM$C_MAXRSS; +# ifdef NAM$M_NO_SHORT_UPCASE + nam.nam$b_nop = NAM$M_SYNCHK | NAM$M_NO_SHORT_UPCASE; +# else + nam.nam$b_nop = NAM$M_SYNCHK; +# endif +#endif + + status = sys$parse(&fab); + if (!(status & 1)) + return fallback; + +#ifdef NAML$C_BID + if (naml.naml$l_long_name_size == 0) + return fallback; + progname = xmalloc(naml.naml$l_long_name_size + 1); + memcpy(progname, naml.naml$l_long_name, naml.naml$l_long_name_size); + progname[naml.naml$l_long_name_size] = '\0'; +#else + if (nam.nam$b_name == 0) + return fallback; + progname = xmalloc(nam.nam$b_name + 1); +# ifdef NAM$M_NO_SHORT_UPCASE + memcpy(progname, nam.nam$l_name, nam.nam$b_name); +# else + { + int i; + for (i = 0; i < nam.nam$b_name; i++) + progname[i] = tolower(nam.nam$l_name[i]); + } +# endif + progname[nam.nam$b_name] = '\0'; +#endif + + return progname; +} |