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Handle platforms that do not support the UNIX user/group database.

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/ossman@393 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Pierre Ossman 2006-01-05 19:43:29 +00:00
parent 59aa6ca514
commit e9be6fa6d3
1 changed files with 41 additions and 4 deletions
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45
polyp/util.c
View file

@ -34,7 +34,6 @@
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <pwd.h>
#include <signal.h>
#include <pthread.h>
#include <sys/time.h>
@ -42,11 +41,17 @@
#include <sys/resource.h>
#include <limits.h>
#include <unistd.h>
#include <grp.h>
#include <netdb.h>
#include <samplerate.h>
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
#include "util.h"
#include "xmalloc.h"
#include "log.h"
@ -244,12 +249,17 @@ char *pa_vsprintf_malloc(const char *format, va_list ap) {
/* Return the current username in the specified string buffer. */
char *pa_get_user_name(char *s, size_t l) {
struct passwd pw, *r;
char buf[1024];
char *p;
#ifdef HAVE_PWD_H
char buf[1024];
struct passwd pw, *r;
#endif
assert(s && l > 0);
if (!(p = getenv("USER")) && !(p = getenv("LOGNAME")) && !(p = getenv("USERNAME"))) {
#ifdef HAVE_PWD_H
#ifdef HAVE_GETPWUID_R
if (getpwuid_r(getuid(), &pw, buf, sizeof(buf), &r) != 0 || !r) {
@ -263,6 +273,9 @@ char *pa_get_user_name(char *s, size_t l) {
}
p = r->pw_name;
#else /* HAVE_PWD_H */
return NULL;
#endif /* HAVE_PWD_H */
}
return pa_strlcpy(s, p, l);
@ -282,19 +295,34 @@ char *pa_get_host_name(char *s, size_t l) {
/* Return the home directory of the current user */
char *pa_get_home_dir(char *s, size_t l) {
char *e;
#ifdef HAVE_PWD_H
char buf[1024];
struct passwd pw, *r;
#endif
assert(s && l);
if ((e = getenv("HOME")))
return pa_strlcpy(s, e, l);
#ifdef HAVE_PWD_H
#ifdef HAVE_GETPWUID_R
if (getpwuid_r(getuid(), &pw, buf, sizeof(buf), &r) != 0 || !r) {
pa_log(__FILE__": getpwuid_r() failed\n");
#else
/* XXX Not thread-safe, but needed on OSes (e.g. FreeBSD 4.X)
* that do not support getpwuid_r. */
if ((r = getpwuid(getuid())) == NULL) {
pa_log(__FILE__": getpwuid_r() failed\n");
#endif
return NULL;
}
return pa_strlcpy(s, r->pw_dir, l);
#else /* HAVE_PWD_H */
return NULL;
#endif
}
/* Similar to OpenBSD's strlcpy() function */
@ -553,6 +581,7 @@ const char *pa_strsignal(int sig) {
}
}
#ifdef HAVE_GRP_H
/* Check whether the specified GID and the group name match */
static int is_group(gid_t gid, const char *name) {
@ -633,6 +662,14 @@ finish:
return r;
}
#else /* HAVE_GRP_H */
int pa_uid_in_group(const char *name, gid_t *gid) {
return -1;
}
#endif
/* Lock or unlock a file entirely. (advisory) */
int pa_lock_fd(int fd, int b) {
struct flock flock;