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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
))
103 #else /* HAVE_PWD_H */
105 #endif /* HAVE_PWD_H */
108 return pa_strlcpy(s
, p
, l
);
111 char *pa_get_host_name(char *s
, size_t l
) {
116 if (gethostname(s
, l
) < 0) {
117 pa_log("gethostname(): %s", pa_cstrerror(errno
));
125 char *pa_get_home_dir(char *s
, size_t l
) {
130 struct passwd pw
, *r
;
136 if ((e
= getenv("HOME")))
137 return pa_strlcpy(s
, e
, l
);
139 if ((e
= getenv("USERPROFILE")))
140 return pa_strlcpy(s
, e
, l
);
143 #ifdef HAVE_GETPWUID_R
144 if (getpwuid_r(getuid(), &pw
, buf
, sizeof(buf
), &r
) != 0 || !r
) {
145 pa_log("getpwuid_r() failed");
147 /* XXX Not thread-safe, but needed on OSes (e.g. FreeBSD 4.X)
148 * that do not support getpwuid_r. */
149 if ((r
= getpwuid(getuid())) == NULL
) {
150 pa_log("getpwuid_r() failed");
155 return pa_strlcpy(s
, r
->pw_dir
, l
);
156 #else /* HAVE_PWD_H */
161 char *pa_get_binary_name(char *s
, size_t l
) {
166 #if defined(OS_IS_WIN32)
170 if (GetModuleFileName(NULL
, path
, PATH_MAX
))
171 return pa_strlcpy(s
, pa_path_get_filename(path
), l
);
178 /* This works on Linux only */
180 if ((rp
= pa_readlink("/proc/self/exe"))) {
181 pa_strlcpy(s
, pa_path_get_filename(rp
), l
);
189 #if defined(HAVE_SYS_PRCTL_H) && defined(PR_GET_NAME)
192 #ifndef TASK_COMM_LEN
193 /* Actually defined in linux/sched.h */
194 #define TASK_COMM_LEN 16
197 char tcomm
[TASK_COMM_LEN
+1];
198 memset(tcomm
, 0, sizeof(tcomm
));
200 /* This works on Linux only */
201 if (prctl(PR_GET_NAME
, (unsigned long) tcomm
, 0, 0, 0) == 0)
202 return pa_strlcpy(s
, tcomm
, l
);
210 char *pa_path_get_filename(const char *p
) {
215 if ((fn
= strrchr(p
, PA_PATH_SEP_CHAR
)))
221 char *pa_get_fqdn(char *s
, size_t l
) {
223 #ifdef HAVE_GETADDRINFO
224 struct addrinfo
*a
, hints
;
230 if (!pa_get_host_name(hn
, sizeof(hn
)))
233 #ifdef HAVE_GETADDRINFO
234 memset(&hints
, 0, sizeof(hints
));
235 hints
.ai_family
= AF_UNSPEC
;
236 hints
.ai_flags
= AI_CANONNAME
;
238 if (getaddrinfo(hn
, NULL
, &hints
, &a
) < 0 || !a
|| !a
->ai_canonname
|| !*a
->ai_canonname
)
239 return pa_strlcpy(s
, hn
, l
);
241 pa_strlcpy(s
, a
->ai_canonname
, l
);
245 return pa_strlcpy(s
, hn
, l
);
249 int pa_msleep(unsigned long t
) {
253 #elif defined(HAVE_NANOSLEEP)
257 ts
.tv_nsec
= (t
% 1000) * 1000000;
259 return nanosleep(&ts
, NULL
);
261 #error "Platform lacks a sleep function."