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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/** \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
/*@-boundswrite@*/
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;
}
/*@=boundswrite@*/
/*@-bounds@*/
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;
}
/*@=bounds@*/
/* still in the dev stage.
* return values, perhaps 1== file erro
* 2== line to long
* 3== umm.... more?
*/
int poptConfigFileToString(FILE *fp, char ** argstrp, /*@unused@*/ int flags)
{
char line[999];
char * argstr;
char * p;
char * q;
char * x;
int t;
int argvlen = 0;
size_t maxlinelen = sizeof(line);
size_t linelen;
int maxargvlen = 480;
int linenum = 0;
*argstrp = NULL;
/* | this_is = our_line
* p q x
*/
if (fp == NULL)
return POPT_ERROR_NULLARG;
argstr = calloc(maxargvlen, sizeof(*argstr));
if (argstr == NULL) return POPT_ERROR_MALLOC;
while (fgets(line, (int)maxlinelen, fp) != NULL) {
linenum++;
p = line;
/* loop until first non-space char or EOL */
while( *p != '\0' && isspace(*p) )
p++;
linelen = strlen(p);
if (linelen >= maxlinelen-1)
return POPT_ERROR_OVERFLOW; /* XXX line too long */
if (*p == '\0' || *p == '\n') continue; /* line is empty */
if (*p == '#') continue; /* comment line */
q = p;
while (*q != '\0' && (!isspace(*q)) && *q != '=')
q++;
if (isspace(*q)) {
/* a space after the name, find next non space */
*q++='\0';
while( *q != '\0' && isspace((int)*q) ) q++;
}
if (*q == '\0') {
/* single command line option (ie, no name=val, just name) */
q[-1] = '\0'; /* kill off newline from fgets() call */
argvlen += (t = q - p) + (sizeof(" --")-1);
if (argvlen >= maxargvlen) {
maxargvlen = (t > maxargvlen) ? t*2 : maxargvlen*2;
argstr = realloc(argstr, maxargvlen);
if (argstr == NULL) return POPT_ERROR_MALLOC;
}
strcat(argstr, " --");
strcat(argstr, p);
continue;
}
if (*q != '=')
continue; /* XXX for now, silently ignore bogus line */
/* *q is an equal sign. */
*q++ = '\0';
/* find next non-space letter of value */
while (*q != '\0' && isspace(*q))
q++;
if (*q == '\0')
continue; /* XXX silently ignore missing value */
/* now, loop and strip all ending whitespace */
x = p + linelen;
while (isspace(*--x))
*x = 0; /* null out last char if space (including fgets() NL) */
/* rest of line accept */
t = x - p;
argvlen += t + (sizeof("' --='")-1);
if (argvlen >= maxargvlen) {
maxargvlen = (t > maxargvlen) ? t*2 : maxargvlen*2;
argstr = realloc(argstr, maxargvlen);
if (argstr == NULL) return POPT_ERROR_MALLOC;
}
strcat(argstr, " --");
strcat(argstr, p);
strcat(argstr, "=\"");
strcat(argstr, q);
strcat(argstr, "\"");
}
*argstrp = argstr;
return 0;
}
|
