wmi-1.3.16 from opsview.com
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/** \ingroup popt
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* \file popt/poptparse.c
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*/
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/* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
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file accompanying popt source distributions, available from
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ftp://ftp.rpm.org/pub/rpm/dist. */
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#include "system.h"
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#define POPT_ARGV_ARRAY_GROW_DELTA 5
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/*@-boundswrite@*/
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int poptDupArgv(int argc, const char **argv,
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int * argcPtr, const char *** argvPtr)
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{
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size_t nb = (argc + 1) * sizeof(*argv);
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const char ** argv2;
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char * dst;
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int i;
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if (argc <= 0 || argv == NULL) /* XXX can't happen */
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return POPT_ERROR_NOARG;
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for (i = 0; i < argc; i++) {
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if (argv[i] == NULL)
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return POPT_ERROR_NOARG;
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nb += strlen(argv[i]) + 1;
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}
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dst = malloc(nb);
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if (dst == NULL) /* XXX can't happen */
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return POPT_ERROR_MALLOC;
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argv2 = (void *) dst;
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dst += (argc + 1) * sizeof(*argv);
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/*@-branchstate@*/
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for (i = 0; i < argc; i++) {
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argv2[i] = dst;
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dst += strlen(strcpy(dst, argv[i])) + 1;
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}
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/*@=branchstate@*/
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argv2[argc] = NULL;
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if (argvPtr) {
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*argvPtr = argv2;
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} else {
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free(argv2);
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argv2 = NULL;
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}
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if (argcPtr)
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*argcPtr = argc;
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return 0;
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}
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/*@=boundswrite@*/
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/*@-bounds@*/
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int poptParseArgvString(const char * s, int * argcPtr, const char *** argvPtr)
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{
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const char * src;
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char quote = '\0';
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int argvAlloced = POPT_ARGV_ARRAY_GROW_DELTA;
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const char ** argv = malloc(sizeof(*argv) * argvAlloced);
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int argc = 0;
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int buflen = strlen(s) + 1;
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char * buf = memset(alloca(buflen), 0, buflen);
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int rc = POPT_ERROR_MALLOC;
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if (argv == NULL) return rc;
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argv[argc] = buf;
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for (src = s; *src != '\0'; src++) {
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if (quote == *src) {
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quote = '\0';
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} else if (quote != '\0') {
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if (*src == '\\') {
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src++;
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if (!*src) {
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rc = POPT_ERROR_BADQUOTE;
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goto exit;
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}
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if (*src != quote) *buf++ = '\\';
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}
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*buf++ = *src;
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} else if (isspace(*src)) {
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if (*argv[argc] != '\0') {
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buf++, argc++;
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if (argc == argvAlloced) {
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argvAlloced += POPT_ARGV_ARRAY_GROW_DELTA;
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argv = realloc(argv, sizeof(*argv) * argvAlloced);
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if (argv == NULL) goto exit;
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}
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argv[argc] = buf;
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}
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} else switch (*src) {
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case '"':
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case '\'':
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quote = *src;
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/*@switchbreak@*/ break;
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case '\\':
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src++;
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if (!*src) {
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rc = POPT_ERROR_BADQUOTE;
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goto exit;
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}
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/*@fallthrough@*/
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default:
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*buf++ = *src;
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/*@switchbreak@*/ break;
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}
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}
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if (strlen(argv[argc])) {
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argc++, buf++;
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}
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rc = poptDupArgv(argc, argv, argcPtr, argvPtr);
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exit:
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if (argv) free(argv);
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return rc;
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}
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/*@=bounds@*/
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/* still in the dev stage.
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* return values, perhaps 1== file erro
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* 2== line to long
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* 3== umm.... more?
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*/
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int poptConfigFileToString(FILE *fp, char ** argstrp, /*@unused@*/ int flags)
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{
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char line[999];
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char * argstr;
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char * p;
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char * q;
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char * x;
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int t;
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int argvlen = 0;
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size_t maxlinelen = sizeof(line);
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size_t linelen;
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int maxargvlen = 480;
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int linenum = 0;
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*argstrp = NULL;
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/* | this_is = our_line
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* p q x
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*/
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if (fp == NULL)
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return POPT_ERROR_NULLARG;
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argstr = calloc(maxargvlen, sizeof(*argstr));
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if (argstr == NULL) return POPT_ERROR_MALLOC;
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while (fgets(line, (int)maxlinelen, fp) != NULL) {
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linenum++;
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p = line;
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/* loop until first non-space char or EOL */
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while( *p != '\0' && isspace(*p) )
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p++;
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linelen = strlen(p);
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if (linelen >= maxlinelen-1)
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return POPT_ERROR_OVERFLOW; /* XXX line too long */
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if (*p == '\0' || *p == '\n') continue; /* line is empty */
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if (*p == '#') continue; /* comment line */
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q = p;
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while (*q != '\0' && (!isspace(*q)) && *q != '=')
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q++;
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if (isspace(*q)) {
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/* a space after the name, find next non space */
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*q++='\0';
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while( *q != '\0' && isspace((int)*q) ) q++;
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}
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if (*q == '\0') {
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/* single command line option (ie, no name=val, just name) */
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q[-1] = '\0'; /* kill off newline from fgets() call */
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argvlen += (t = q - p) + (sizeof(" --")-1);
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if (argvlen >= maxargvlen) {
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maxargvlen = (t > maxargvlen) ? t*2 : maxargvlen*2;
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argstr = realloc(argstr, maxargvlen);
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if (argstr == NULL) return POPT_ERROR_MALLOC;
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}
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strcat(argstr, " --");
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strcat(argstr, p);
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continue;
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}
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if (*q != '=')
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continue; /* XXX for now, silently ignore bogus line */
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/* *q is an equal sign. */
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*q++ = '\0';
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/* find next non-space letter of value */
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while (*q != '\0' && isspace(*q))
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q++;
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if (*q == '\0')
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continue; /* XXX silently ignore missing value */
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/* now, loop and strip all ending whitespace */
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x = p + linelen;
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while (isspace(*--x))
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*x = 0; /* null out last char if space (including fgets() NL) */
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/* rest of line accept */
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t = x - p;
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argvlen += t + (sizeof("' --='")-1);
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if (argvlen >= maxargvlen) {
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maxargvlen = (t > maxargvlen) ? t*2 : maxargvlen*2;
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argstr = realloc(argstr, maxargvlen);
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if (argstr == NULL) return POPT_ERROR_MALLOC;
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}
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strcat(argstr, " --");
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strcat(argstr, p);
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strcat(argstr, "=\"");
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strcat(argstr, q);
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strcat(argstr, "\"");
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}
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*argstrp = argstr;
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return 0;
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}
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