]>
code.delx.au - pulseaudio/blob - src/pulse/util.c
2 This file is part of PulseAudio.
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as
9 published by the Free Software Foundation; either version 2.1 of the
10 License, or (at your option) any later version.
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
34 #include <sys/types.h>
40 #ifdef HAVE_SYS_SOCKET_H
41 #include <sys/socket.h>
52 #ifdef HAVE_SYS_PRCTL_H
53 #include <sys/prctl.h>
56 #include <pulse/xmalloc.h>
57 #include <pulsecore/winsock.h>
58 #include <pulsecore/core-error.h>
59 #include <pulsecore/log.h>
60 #include <pulsecore/core-util.h>
61 #include <pulsecore/macro.h>
65 char *pa_get_user_name(char *s
, size_t l
) {
76 if (!(p
= (getuid() == 0 ? "root" : NULL
)) &&
77 !(p
= getenv("USER")) &&
78 !(p
= getenv("LOGNAME")) &&
79 !(p
= getenv("USERNAME"))) {
82 #ifdef HAVE_GETPWUID_R
83 if (getpwuid_r(getuid(), &pw
, buf
, sizeof(buf
), &r
) != 0 || !r
) {
85 /* XXX Not thread-safe, but needed on OSes (e.g. FreeBSD 4.X)
86 * that do not support getpwuid_r. */
87 if ((r
= getpwuid(getuid())) == NULL
) {
89 pa_snprintf(s
, l
, "%lu", (unsigned long) getuid());
95 #elif defined(OS_IS_WIN32) /* HAVE_PWD_H */
96 DWORD size
= sizeof(buf
);
98 if (!GetUserName(buf
, &size
)) {
105 #else /* HAVE_PWD_H */
108 #endif /* HAVE_PWD_H */
111 return pa_strlcpy(s
, p
, l
);
114 char *pa_get_host_name(char *s
, size_t l
) {
119 if (gethostname(s
, l
) < 0)
126 char *pa_get_home_dir(char *s
, size_t l
) {
131 struct passwd pw
, *r
;
137 if ((e
= getenv("HOME")))
138 return pa_strlcpy(s
, e
, l
);
140 if ((e
= getenv("USERPROFILE")))
141 return pa_strlcpy(s
, e
, l
);
146 #ifdef HAVE_GETPWUID_R
147 if (getpwuid_r(getuid(), &pw
, buf
, sizeof(buf
), &r
) != 0 || !r
) {
149 /* XXX Not thread-safe, but needed on OSes (e.g. FreeBSD 4.X)
150 * that do not support getpwuid_r. */
151 if ((r
= getpwuid(getuid())) == NULL
) {
159 return pa_strlcpy(s
, r
->pw_dir
, l
);
160 #else /* HAVE_PWD_H */
167 char *pa_get_binary_name(char *s
, size_t l
) {
172 #if defined(OS_IS_WIN32)
176 if (GetModuleFileName(NULL
, path
, PATH_MAX
))
177 return pa_strlcpy(s
, pa_path_get_filename(path
), l
);
184 /* This works on Linux only */
186 if ((rp
= pa_readlink("/proc/self/exe"))) {
187 pa_strlcpy(s
, pa_path_get_filename(rp
), l
);
195 #if defined(HAVE_SYS_PRCTL_H) && defined(PR_GET_NAME)
198 #ifndef TASK_COMM_LEN
199 /* Actually defined in linux/sched.h */
200 #define TASK_COMM_LEN 16
203 char tcomm
[TASK_COMM_LEN
+1];
204 memset(tcomm
, 0, sizeof(tcomm
));
206 /* This works on Linux only */
207 if (prctl(PR_GET_NAME
, (unsigned long) tcomm
, 0, 0, 0) == 0)
208 return pa_strlcpy(s
, tcomm
, l
);
217 char *pa_path_get_filename(const char *p
) {
222 if ((fn
= strrchr(p
, PA_PATH_SEP_CHAR
)))
228 char *pa_get_fqdn(char *s
, size_t l
) {
230 #ifdef HAVE_GETADDRINFO
231 struct addrinfo
*a
, hints
;
237 if (!pa_get_host_name(hn
, sizeof(hn
)))
240 #ifdef HAVE_GETADDRINFO
241 memset(&hints
, 0, sizeof(hints
));
242 hints
.ai_family
= AF_UNSPEC
;
243 hints
.ai_flags
= AI_CANONNAME
;
245 if (getaddrinfo(hn
, NULL
, &hints
, &a
) < 0 || !a
|| !a
->ai_canonname
|| !*a
->ai_canonname
)
246 return pa_strlcpy(s
, hn
, l
);
248 pa_strlcpy(s
, a
->ai_canonname
, l
);
252 return pa_strlcpy(s
, hn
, l
);
256 int pa_msleep(unsigned long t
) {
260 #elif defined(HAVE_NANOSLEEP)
263 ts
.tv_sec
= (time_t) (t
/1000UL);
264 ts
.tv_nsec
= (long) ((t
% 1000UL) * 1000000UL);
266 return nanosleep(&ts
, NULL
);
268 #error "Platform lacks a sleep function."