diff options
Diffstat (limited to 'src/common')
| -rw-r--r-- | src/common/util.c | 15 | ||||
| -rw-r--r-- | src/common/util.h | 2 |
2 files changed, 12 insertions, 5 deletions
diff --git a/src/common/util.c b/src/common/util.c index 31d42a3e5c..36d0f4d068 100644 --- a/src/common/util.c +++ b/src/common/util.c @@ -3691,8 +3691,9 @@ finish_daemon(const char *cp) #endif /** Write the current process ID, followed by NL, into <b>filename</b>. + * Return 0 on success, -1 on failure. */ -void +int write_pidfile(const char *filename) { FILE *pidfile; @@ -3700,13 +3701,19 @@ write_pidfile(const char *filename) if ((pidfile = fopen(filename, "w")) == NULL) { log_warn(LD_FS, "Unable to open \"%s\" for writing: %s", filename, strerror(errno)); + return -1; } else { #ifdef _WIN32 - fprintf(pidfile, "%d\n", (int)_getpid()); + int pid = (int)_getpid(); #else - fprintf(pidfile, "%d\n", (int)getpid()); + int pid = (int)getpid(); #endif - fclose(pidfile); + int rv = 0; + if (fprintf(pidfile, "%d\n", pid) < 0) + rv = -1; + if (fclose(pidfile) < 0) + rv = -1; + return rv; } } diff --git a/src/common/util.h b/src/common/util.h index f50cf043a4..073fb82aed 100644 --- a/src/common/util.h +++ b/src/common/util.h @@ -389,7 +389,7 @@ int path_is_relative(const char *filename); /* Process helpers */ void start_daemon(void); void finish_daemon(const char *desired_cwd); -void write_pidfile(const char *filename); +int write_pidfile(const char *filename); /* Port forwarding */ void tor_check_port_forwarding(const char *filename, |