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fix issue where pid file is accidentally truncated 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10493 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale 2008-11-21 15:52:22 +00:00
parent 3df4810b03
commit 482c6491ac
1 changed files with 25 additions and 7 deletions
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20
src/switch.c
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@ -253,7 +253,8 @@ int main(int argc, char *argv[])
{
char pid_path[256] = ""; /* full path to the pid file */
char pid_buffer[32] = ""; /* pid string */
switch_size_t pid_len;
char old_pid_buffer[32] = ""; /* pid string */
switch_size_t pid_len, old_pid_len;
const char *err = NULL; /* error value for return from freeswitch initialization */
#ifndef WIN32
int nf = 0; /* TRUE if we are running in nofork mode */
@ -603,6 +604,21 @@ int main(int argc, char *argv[])
pid_len = strlen(pid_buffer);
apr_pool_create(&pool, NULL);
if (switch_file_open(&fd,
pid_path,
SWITCH_FOPEN_READ,
SWITCH_FPROT_UREAD | SWITCH_FPROT_UWRITE,
pool) != SWITCH_STATUS_SUCCESS) {
fprintf(stderr, "Cannot open pid file %s.\n", pid_path);
return 255;
}
old_pid_len = sizeof(old_pid_buffer);
switch_file_read(fd, old_pid_buffer, &old_pid_len);
switch_file_close(fd);
if (switch_file_open(&fd,
pid_path,
SWITCH_FOPEN_WRITE | SWITCH_FOPEN_CREATE | SWITCH_FOPEN_TRUNCATE,
@ -614,6 +630,8 @@ int main(int argc, char *argv[])
if (switch_file_lock(fd, SWITCH_FLOCK_EXCLUSIVE | SWITCH_FLOCK_NONBLOCK) != SWITCH_STATUS_SUCCESS) {
fprintf(stderr, "Cannot lock pid file %s.\n", pid_path);
old_pid_len = strlen(old_pid_buffer);
switch_file_write(fd, old_pid_buffer, &old_pid_len);
return 255;
}