emo/openrc
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove redundant checking of /proc/pid/exe

Browse Source
This commit is contained in:
Roy Marples 2008-04-30 16:26:05 +00:00
parent 208443fa0e
commit 5b800030f1
1 changed files with 0 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/librc/librc-daemon.c
View File

@ -83,34 +83,12 @@ static bool pid_is_exec(pid_t pid, const char *const *argv)
{ {
char cmdline[32]; char cmdline[32];
char buffer[PATH_MAX]; char buffer[PATH_MAX];
char *p;
int fd; int fd;
ssize_t bytes; ssize_t bytes;
/* Check it's the right binary */
snprintf(cmdline, sizeof(cmdline), "/proc/%u/exe", pid);
bytes = readlink(cmdline, buffer, sizeof(buffer));
if (bytes > 0) {
buffer[bytes] = '\0';
if (strcmp(*argv, buffer) == 0)
return true;
/* We should cater for deleted binaries too */
bytes = strlen(buffer);
if (bytes) {
p = buffer + (bytes - 10);
if (strcmp(p, " (deleted)") == 0) {
*p = '\0';
if (strcmp(buffer, *argv) == 0)
return true;
}
}
}
snprintf(cmdline, sizeof(cmdline), "/proc/%u/cmdline", pid); snprintf(cmdline, sizeof(cmdline), "/proc/%u/cmdline", pid);
if ((fd = open(cmdline, O_RDONLY)) < 0) if ((fd = open(cmdline, O_RDONLY)) < 0)
return false; return false;
bytes = read(fd, buffer, sizeof(buffer)); bytes = read(fd, buffer, sizeof(buffer));
close(fd); close(fd);
if (bytes == -1) if (bytes == -1)