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Commit	Line	Data
	1	/** \ingroup popt
	2	* \file popt/poptparse.c
	3	*/
	4
	5	/* (C) 1998-2000 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. */
	8
	9	#include "system.h"
	10
	11	#define POPT_ARGV_ARRAY_GROW_DELTA 5
	12
	13	int poptDupArgv(int argc, const char **argv,
	14	int * argcPtr, const char *** argvPtr)
	15	{
	16	size_t nb = (argc + 1) * sizeof(*argv);
	17	const char ** argv2;
	18	char * dst;
	19	int i;
	20
	21	if (argc <= 0 \|\| argv == NULL) /* XXX can't happen */
	22	return POPT_ERROR_NOARG;
	23	for (i = 0; i < argc; i++) {
	24	if (argv[i] == NULL)
	25	return POPT_ERROR_NOARG;
	26	nb += strlen(argv[i]) + 1;
	27	}
	28
	29	dst = malloc(nb);
	30	if (dst == NULL) /* XXX can't happen */
	31	return POPT_ERROR_MALLOC;
	32	argv2 = (void *) dst;
	33	dst += (argc + 1) * sizeof(*argv);
	34
	35	/@-branchstate@/
	36	for (i = 0; i < argc; i++) {
	37	argv2[i] = dst;
	38	dst += strlen(strcpy(dst, argv[i])) + 1;
	39	}
	40	/@=branchstate@/
	41	argv2[argc] = NULL;
	42
	43	if (argvPtr) {
	44	*argvPtr = argv2;
	45	} else {
	46	free(argv2);
	47	argv2 = NULL;
	48	}
	49	if (argcPtr)
	50	*argcPtr = argc;
	51	return 0;
	52	}
	53
	54	int poptParseArgvString(const char * s, int * argcPtr, const char *** argvPtr)
	55	{
	56	const char * src;
	57	char quote = '\0';
	58	int argvAlloced = POPT_ARGV_ARRAY_GROW_DELTA;
	59	const char ** argv = malloc(sizeof(argv) argvAlloced);
	60	int argc = 0;
	61	int buflen = strlen(s) + 1;
	62	char * buf = memset(alloca(buflen), 0, buflen);
	63	int rc = POPT_ERROR_MALLOC;
	64
	65	if (argv == NULL) return rc;
	66	argv[argc] = buf;
	67
	68	for (src = s; *src != '\0'; src++) {
	69	if (quote == *src) {
	70	quote = '\0';
	71	} else if (quote != '\0') {
	72	if (*src == '\\') {
	73	src++;
	74	if (!*src) {
	75	rc = POPT_ERROR_BADQUOTE;
	76	goto exit;
	77	}
	78	if (src != quote) buf++ = '\\';
	79	}
	80	buf++ = src;
	81	} else if (isspace(*src)) {
	82	if (*argv[argc] != '\0') {
	83	buf++, argc++;
	84	if (argc == argvAlloced) {
	85	argvAlloced += POPT_ARGV_ARRAY_GROW_DELTA;
	86	argv = realloc(argv, sizeof(argv) argvAlloced);
	87	if (argv == NULL) goto exit;
	88	}
	89	argv[argc] = buf;
	90	}
	91	} else switch (*src) {
	92	case '"':
	93	case '\'':
	94	quote = *src;
	95	/@switchbreak@/ break;
	96	case '\\':
	97	src++;
	98	if (!*src) {
	99	rc = POPT_ERROR_BADQUOTE;
	100	goto exit;
	101	}
	102	/@fallthrough@/
	103	default:
	104	buf++ = src;
	105	/@switchbreak@/ break;
	106	}
	107	}
	108
	109	if (strlen(argv[argc])) {
	110	argc++, buf++;
	111	}
	112
	113	rc = poptDupArgv(argc, argv, argcPtr, argvPtr);
	114
	115	exit:
	116	if (argv) free(argv);
	117	return rc;
	118	}