2 * \file popt/poptparse.c
5 /* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
6 file accompanying popt source distributions, available from
7 ftp://ftp.rpm.org/pub/rpm/dist. */
11 #define POPT_ARGV_ARRAY_GROW_DELTA 5
13 int poptDupArgv(int argc, const char **argv,
14 int * argcPtr, const char *** argvPtr)
16 size_t nb = (argc + 1) * sizeof(*argv);
21 if (argc <= 0 || argv == NULL) /* XXX can't happen */
22 return POPT_ERROR_NOARG;
23 for (i = 0; i < argc; i++) {
25 return POPT_ERROR_NOARG;
26 nb += strlen(argv[i]) + 1;
30 if (dst == NULL) /* XXX can't happen */
31 return POPT_ERROR_MALLOC;
33 dst += (argc + 1) * sizeof(*argv);
36 for (i = 0; i < argc; i++) {
38 dst = stpcpy(dst, argv[i]);
39 dst++; /* trailing NUL */
54 int poptParseArgvString(const char * s, int * argcPtr, const char *** argvPtr)
58 int argvAlloced = POPT_ARGV_ARRAY_GROW_DELTA;
59 const char ** argv = malloc(sizeof(*argv) * argvAlloced);
61 size_t buflen = strlen(s) + 1;
62 char * buf, * bufOrig = NULL;
63 int rc = POPT_ERROR_MALLOC;
65 if (argv == NULL) return rc;
66 buf = bufOrig = calloc((size_t)1, buflen);
73 for (src = s; *src != '\0'; src++) {
76 } else if (quote != '\0') {
80 rc = POPT_ERROR_BADQUOTE;
83 if (*src != quote) *buf++ = '\\';
86 } else if (_isspaceptr(src)) {
87 if (*argv[argc] != '\0') {
89 if (argc == argvAlloced) {
90 argvAlloced += POPT_ARGV_ARRAY_GROW_DELTA;
91 argv = realloc(argv, sizeof(*argv) * argvAlloced);
92 if (argv == NULL) goto exit;
96 } else switch (*src) {
100 /*@switchbreak@*/ break;
104 rc = POPT_ERROR_BADQUOTE;
110 /*@switchbreak@*/ break;
114 if (strlen(argv[argc])) {
118 rc = poptDupArgv(argc, argv, argcPtr, argvPtr);
121 if (bufOrig) free(bufOrig);
122 if (argv) free(argv);
126 /* still in the dev stage.
127 * return values, perhaps 1== file erro
131 int poptConfigFileToString(FILE *fp, char ** argstrp,
132 /*@unused@*/ UNUSED(int flags))
141 size_t maxlinelen = sizeof(line);
143 size_t maxargvlen = (size_t)480;
147 /* | this_is = our_line
152 return POPT_ERROR_NULLARG;
154 argstr = calloc(maxargvlen, sizeof(*argstr));
155 if (argstr == NULL) return POPT_ERROR_MALLOC;
157 while (fgets(line, (int)maxlinelen, fp) != NULL) {
160 /* loop until first non-space char or EOL */
161 while( *p != '\0' && _isspaceptr(p) )
165 if (linelen >= maxlinelen-1) {
167 return POPT_ERROR_OVERFLOW; /* XXX line too long */
170 if (*p == '\0' || *p == '\n') continue; /* line is empty */
171 if (*p == '#') continue; /* comment line */
175 while (*q != '\0' && (!_isspaceptr(q)) && *q != '=')
178 if (_isspaceptr(q)) {
179 /* a space after the name, find next non space */
181 while( *q != '\0' && _isspaceptr(q) ) q++;
184 /* single command line option (ie, no name=val, just name) */
185 q[-1] = '\0'; /* kill off newline from fgets() call */
186 argvlen += (t = (size_t)(q - p)) + (sizeof(" --")-1);
187 if (argvlen >= maxargvlen) {
188 maxargvlen = (t > maxargvlen) ? t*2 : maxargvlen*2;
189 argstr = realloc(argstr, maxargvlen);
190 if (argstr == NULL) return POPT_ERROR_MALLOC;
192 strcat(argstr, " --");
197 continue; /* XXX for now, silently ignore bogus line */
199 /* *q is an equal sign. */
202 /* find next non-space letter of value */
203 while (*q != '\0' && _isspaceptr(q))
206 continue; /* XXX silently ignore missing value */
208 /* now, loop and strip all ending whitespace */
210 while (_isspaceptr(--x))
211 *x = '\0'; /* null out last char if space (including fgets() NL) */
213 /* rest of line accept */
215 argvlen += t + (sizeof("' --='")-1);
216 if (argvlen >= maxargvlen) {
217 maxargvlen = (t > maxargvlen) ? t*2 : maxargvlen*2;
218 argstr = realloc(argstr, maxargvlen);
219 if (argstr == NULL) return POPT_ERROR_MALLOC;
221 strcat(argstr, " --");
223 strcat(argstr, "=\"");
225 strcat(argstr, "\"");