Bug Summary

File:fc-list/fc-list.c
Location:line 144, column 6
Description:Potential leak of memory pointed to by 'format'

Annotated Source Code

1/*
2 * fontconfig/fc-list/fc-list.c
3 *
4 * Copyright © 2002 Keith Packard
5 *
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of the author(s) not be used in
11 * advertising or publicity pertaining to distribution of the software without
12 * specific, written prior permission. The authors make no
13 * representations about the suitability of this software for any purpose. It
14 * is provided "as is" without express or implied warranty.
15 *
16 * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
18 * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
22 * PERFORMANCE OF THIS SOFTWARE.
23 */
24
25#include <fontconfig/fontconfig.h>
26#include <stdio.h>
27#include <unistd.h>
28#include <stdlib.h>
29#include <string.h>
30#ifdef HAVE_CONFIG_H1
31#include <config.h>
32#else
33#ifdef linux
34#define HAVE_GETOPT_LONG1 1
35#endif
36#define HAVE_GETOPT1 1
37#endif
38
39#ifndef HAVE_GETOPT1
40#define HAVE_GETOPT1 0
41#endif
42#ifndef HAVE_GETOPT_LONG1
43#define HAVE_GETOPT_LONG1 0
44#endif
45
46#if HAVE_GETOPT_LONG1
47#undef _GNU_SOURCE
48#define _GNU_SOURCE
49#include <getopt.h>
50const struct option longopts[] = {
51 {"verbose", 0, 0, 'v'},
52 {"format", 1, 0, 'f'},
53 {"quiet", 0, 0, 'q'},
54 {"version", 0, 0, 'V'},
55 {"help", 0, 0, 'h'},
56 {NULL((void *)0),0,0,0},
57};
58#else
59#if HAVE_GETOPT1
60extern char *optarg;
61extern int optind, opterr, optopt;
62#endif
63#endif
64
65static void
66usage (char *program, int error)
67{
68 FILE *file = error ? stderr__stderrp : stdout__stdoutp;
69#if HAVE_GETOPT_LONG1
70 fprintf (file, "usage: %s [-vqVh] [-f FORMAT] [--verbose] [--format=FORMAT] [--quiet] [--version] [--help] [pattern] {element ...} \n",
71 program);
72#else
73 fprintf (file, "usage: %s [-vqVh] [-f FORMAT] [pattern] {element ...} \n",
74 program);
75#endif
76 fprintf (file, "List fonts matching [pattern]\n");
77 fprintf (file, "\n");
78#if HAVE_GETOPT_LONG1
79 fprintf (file, " -v, --verbose display entire font pattern verbosely\n");
80 fprintf (file, " -f, --format=FORMAT use the given output format\n");
81 fprintf (file, " -q, --quiet suppress all normal output, exit 1 if no fonts matched\n");
82 fprintf (file, " -V, --version display font config version and exit\n");
83 fprintf (file, " -h, --help display this help and exit\n");
84#else
85 fprintf (file, " -v (verbose) display entire font pattern verbosely\n");
86 fprintf (file, " -f FORMAT (format) use the given output format\n");
87 fprintf (file, " -q, (quiet) suppress all normal output, exit 1 if no fonts matched\n");
88 fprintf (file, " -V (version) display font config version and exit\n");
89 fprintf (file, " -h (help) display this help and exit\n");
90#endif
91 exit (error);
92}
93
94int
95main (int argc, char **argv)
96{
97 int verbose = 0;
98 int quiet = 0;
99 const FcChar8 *format = NULL((void *)0);
100 int nfont = 0;
101 int i;
102 FcObjectSet *os = 0;
103 FcFontSet *fs;
104 FcPattern *pat;
105#if HAVE_GETOPT_LONG1 || HAVE_GETOPT1
106 int c;
107
108#if HAVE_GETOPT_LONG1
109 while ((c = getopt_long (argc, argv, "vf:qVh", longopts, NULL((void *)0))) != -1)
1
Loop condition is true. Entering loop body
5
Loop condition is false. Execution continues on line 134
110#else
111 while ((c = getopt (argc, argv, "vf:qVh")) != -1)
112#endif
113 {
114 switch (c) {
2
Control jumps to 'case 102:' at line 118
115 case 'v':
116 verbose = 1;
117 break;
118 case 'f':
119 format = (FcChar8 *) strdup (optarg);
3
Memory is allocated
120 break;
4
Execution continues on line 109
121 case 'q':
122 quiet = 1;
123 break;
124 case 'V':
125 fprintf (stderr__stderrp, "fontconfig version %d.%d.%d\n",
126 FC_MAJOR2, FC_MINOR11, FC_REVISION95);
127 exit (0);
128 case 'h':
129 usage (argv[0], 0);
130 default:
131 usage (argv[0], 1);
132 }
133 }
134 i = optind;
135#else
136 i = 1;
137#endif
138
139 if (argv[i])
6
Taking true branch
140 {
141 pat = FcNameParse ((FcChar8 *) argv[i]);
142 if (!pat)
7
Assuming 'pat' is null
8
Taking true branch
143 {
144 fputs ("Unable to parse the pattern\n", stderr__stderrp);
9
Potential leak of memory pointed to by 'format'
145 return 1;
146 }
147 while (argv[++i])
148 {
149 if (!os)
150 os = FcObjectSetCreate ();
151 FcObjectSetAdd (os, argv[i]);
152 }
153 }
154 else
155 pat = FcPatternCreate ();
156 if (quiet && !os)
157 os = FcObjectSetCreate ();
158 if (!verbose && !format && !os)
159 os = FcObjectSetBuild (FC_FAMILY"family", FC_STYLE"style", FC_FILE"file", (char *) 0);
160 if (!format)
161 format = (const FcChar8 *) "%{=fclist}\n";
162 fs = FcFontList (0, pat, os);
163 if (os)
164 FcObjectSetDestroy (os);
165 if (pat)
166 FcPatternDestroy (pat);
167
168 if (!quiet && fs)
169 {
170 int j;
171
172 for (j = 0; j < fs->nfont; j++)
173 {
174 if (verbose)
175 {
176 FcPatternPrint (fs->fonts[j]);
177 }
178 else
179 {
180 FcChar8 *s;
181
182 s = FcPatternFormat (fs->fonts[j], format);
183 if (s)
184 {
185 printf ("%s", s);
186 FcStrFree (s);
187 }
188 }
189 }
190 }
191
192 if (fs) {
193 nfont = fs->nfont;
194 FcFontSetDestroy (fs);
195 }
196
197 FcFini ();
198
199 return quiet ? (nfont == 0 ? 1 : 0) : 0;
200}