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/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
file accompanying popt source distributions, available from
ftp://ftp.redhat.com/pub/code/popt */
#include "system.h"
#include "poptint.h"
#define POPT_ARGV_ARRAY_GROW_DELTA 5
int poptDupArgv(int argc, const char **argv,
int * argcPtr, const char *** argvPtr)
{
size_t nb = (argc + 1) * sizeof(*argv);
const char ** argv2;
char * dst;
int i;
for (i = 0; i < argc; i++) {
if (argv[i] == NULL)
return POPT_ERROR_NOARG;
nb += strlen(argv[i]) + 1;
}
dst = malloc(nb);
argv2 = (void *) dst;
dst += (argc + 1) * sizeof(*argv);
for (i = 0; i < argc; i++) {
argv2[i] = dst;
dst += strlen(strcpy(dst, argv[i])) + 1;
}
argv2[argc] = NULL;
*argvPtr = argv2;
*argcPtr = argc;
return 0;
}
int poptParseArgvString(const char * s, int * argcPtr, const char *** argvPtr)
{
const char * src;
char quote = '\0';
int argvAlloced = POPT_ARGV_ARRAY_GROW_DELTA;
const char ** argv = malloc(sizeof(*argv) * argvAlloced);
int argc = 0;
int buflen = strlen(s) + 1;
char * buf = memset(alloca(buflen), 0, buflen);
argv[argc] = buf;
for (src = s; *src; src++) {
if (quote == *src) {
quote = '\0';
} else if (quote) {
if (*src == '\\') {
src++;
if (!*src) {
free(argv);
return POPT_ERROR_BADQUOTE;
}
if (*src != quote) *buf++ = '\\';
}
*buf++ = *src;
} else if (isspace(*src)) {
if (*argv[argc]) {
buf++, argc++;
if (argc == argvAlloced) {
argvAlloced += POPT_ARGV_ARRAY_GROW_DELTA;
argv = realloc(argv, sizeof(*argv) * argvAlloced);
}
argv[argc] = buf;
}
} else switch (*src) {
case '"':
case '\'':
quote = *src;
break;
case '\\':
src++;
if (!*src) {
free(argv);
return POPT_ERROR_BADQUOTE;
}
/*@fallthrough@*/
default:
*buf++ = *src;
break;
}
}
if (strlen(argv[argc])) {
argc++, buf++;
}
#if 0
{ char * dst = malloc((argc + 1) * sizeof(*argv) + (buf - argv[0]));
const char ** argv2 = (void *) dst;
int i;
dst += (argc + 1) * sizeof(*argv);
memcpy(argv2, argv, argc * sizeof(*argv));
argv2[argc] = NULL;
memcpy(dst, argv[0], buf - argv[0]);
for (i = 0; i < argc; i++)
argv2[i] = dst + (argv[i] - argv[0]);
*argvPtr = argv2;
*argcPtr = argc;
}
#else
(void) poptDupArgv(argc, argv, argcPtr, argvPtr);
#endif
free(argv);
return 0;
}
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