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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 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif
#include "popt.h"
static const int poptArgvArrayGrowDelta = 5;
int poptParseArgvString(const char * s, int * argcPtr, char *** argvPtr) {
char * buf, * bufStart, * dst;
const char * src;
char quote = '\0';
int argvAlloced = poptArgvArrayGrowDelta;
char ** argv = malloc(sizeof(*argv) * argvAlloced);
char ** argv2;
int argc = 0;
int i, buflen;
buflen = strlen(s) + 1;
bufStart = buf = alloca(buflen);
memset(buf, '\0', buflen);
src = s;
argv[argc] = buf;
while (*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 += poptArgvArrayGrowDelta;
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;
}
src++;
}
if (strlen(argv[argc])) {
argc++, buf++;
}
dst = malloc(argc * sizeof(*argv) + (buf - bufStart));
argv2 = (void *) dst;
dst += argc * sizeof(*argv);
memcpy(argv2, argv, argc * sizeof(*argv));
memcpy(dst, bufStart, buf - bufStart);
for (i = 0; i < argc; i++) {
argv2[i] = dst + (argv[i] - bufStart);
}
free(argv);
*argvPtr = argv2;
*argcPtr = argc;
return 0;
}
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