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
|
/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdarg.h>
#include <stdlib.h>
#include <signal.h>
#include <errno.h>
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <signal.h>
#include <pthread.h>
#include "util.h"
#include "xmalloc.h"
void pa_make_nonblock_fd(int fd) {
int v;
if ((v = fcntl(fd, F_GETFL)) >= 0)
if (!(v & O_NONBLOCK))
fcntl(fd, F_SETFL, v|O_NONBLOCK);
}
int pa_make_secure_dir(const char* dir) {
struct stat st;
if (mkdir(dir, 0700) < 0)
if (errno != EEXIST)
return -1;
if (lstat(dir, &st) < 0)
goto fail;
if (!S_ISDIR(st.st_mode) || (st.st_uid != getuid()) || ((st.st_mode & 0777) != 0700))
goto fail;
return 0;
fail:
rmdir(dir);
return -1;
}
ssize_t pa_loop_read(int fd, void*data, size_t size) {
ssize_t ret = 0;
assert(fd >= 0 && data && size);
while (size > 0) {
ssize_t r;
if ((r = read(fd, data, size)) < 0)
return r;
if (r == 0)
break;
ret += r;
data += r;
size -= r;
}
return ret;
}
ssize_t pa_loop_write(int fd, const void*data, size_t size) {
ssize_t ret = 0;
assert(fd >= 0 && data && size);
while (size > 0) {
ssize_t r;
if ((r = write(fd, data, size)) < 0)
return r;
if (r == 0)
break;
ret += r;
data += r;
size -= r;
}
return ret;
}
void pa_check_for_sigpipe(void) {
struct sigaction sa;
sigset_t set;
#ifdef HAVE_PTHREAD
if (pthread_sigmask(SIG_SETMASK, NULL, &set) < 0) {
#endif
if (sigprocmask(SIG_SETMASK, NULL, &set) < 0) {
fprintf(stderr, __FILE__": sigprocmask() failed: %s\n", strerror(errno));
return;
}
#ifdef HAVE_PTHREAD
}
#endif
if (sigismember(&set, SIGPIPE))
return;
if (sigaction(SIGPIPE, NULL, &sa) < 0) {
fprintf(stderr, __FILE__": sigaction() failed: %s\n", strerror(errno));
return;
}
if (sa.sa_handler != SIG_DFL)
return;
fprintf(stderr, "polypaudio: WARNING: SIGPIPE is not trapped. This might cause malfunction!\n");
}
/* The following is based on an example from the GNU libc documentation */
char *pa_sprintf_malloc(const char *format, ...) {
int size = 100;
char *c = NULL;
assert(format);
for(;;) {
int r;
va_list ap;
c = pa_xrealloc(c, size);
va_start(ap, format);
r = vsnprintf(c, size, format, ap);
va_end(ap);
if (r > -1 && r < size)
return c;
if (r > -1) /* glibc 2.1 */
size = r+1;
else /* glibc 2.0 */
size *= 2;
}
}
char *pa_get_user_name(char *s, size_t l) {
struct passwd pw, *r;
char buf[1024];
char *p;
if (!(p = getenv("USER")))
if (!(p = getenv("LOGNAME")))
if (!(p = getenv("USERNAME"))) {
if (getpwuid_r(getuid(), &pw, buf, sizeof(buf), &r) != 0 || !r) {
snprintf(s, l, "%lu", (unsigned long) getuid());
return s;
}
p = r->pw_name;
}
snprintf(s, l, "%s", p);
return s;
}
char *pa_get_host_name(char *s, size_t l) {
gethostname(s, l);
s[l-1] = 0;
return s;
}
|
