1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/** \ingroup popt
* \file popt/poptparse.c
*/
/* (C) 1998-2000 Red Hat, Inc. -- Licensing details are in the COPYING
file accompanying popt source distributions, available from
ftp://ftp.rpm.org/pub/rpm/dist. */
#include "system.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;
if (argc <= 0 || argv == NULL) /* XXX can't happen */
return POPT_ERROR_NOARG;
for (i = 0; i < argc; i++) {
if (argv[i] == NULL)
return POPT_ERROR_NOARG;
nb += strlen(argv[i]) + 1;
}
dst = malloc(nb);
if (dst == NULL) /* XXX can't happen */
return POPT_ERROR_MALLOC;
argv2 = (void *) dst;
dst += (argc + 1) * sizeof(*argv);
/*@-branchstate@*/
for (i = 0; i < argc; i++) {
argv2[i] = dst;
dst += strlen(strcpy(dst, argv[i])) + 1;
}
/*@=branchstate@*/
argv2[argc] = NULL;
if (argvPtr) {
*argvPtr = argv2;
} else {
free(argv2);
argv2 = NULL;
}
if (argcPtr)
*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);
int rc = POPT_ERROR_MALLOC;
if (argv == NULL) return rc;
argv[argc] = buf;
for (src = s; *src != '\0'; src++) {
if (quote == *src) {
quote = '\0';
} else if (quote != '\0') {
if (*src == '\\') {
src++;
if (!*src) {
rc = POPT_ERROR_BADQUOTE;
goto exit;
}
if (*src != quote) *buf++ = '\\';
}
*buf++ = *src;
} else if (isspace(*src)) {
if (*argv[argc] != '\0') {
buf++, argc++;
if (argc == argvAlloced) {
argvAlloced += POPT_ARGV_ARRAY_GROW_DELTA;
argv = realloc(argv, sizeof(*argv) * argvAlloced);
if (argv == NULL) goto exit;
}
argv[argc] = buf;
}
} else switch (*src) {
case '"':
case '\'':
quote = *src;
/*@switchbreak@*/ break;
case '\\':
src++;
if (!*src) {
rc = POPT_ERROR_BADQUOTE;
goto exit;
}
/*@fallthrough@*/
default:
*buf++ = *src;
/*@switchbreak@*/ break;
}
}
if (strlen(argv[argc])) {
argc++, buf++;
}
rc = poptDupArgv(argc, argv, argcPtr, argvPtr);
exit:
if (argv) free(argv);
return rc;
}
|
