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check return values (fix #61)

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yrutschle 2021-10-02 21:27:31 +02:00
parent ed48d3964f
commit 0cde3d794a
1 changed files with 13 additions and 3 deletions
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16
common.c
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@ -821,14 +821,24 @@ void drop_privileges(const char* user_name, const char* chroot_path)
void write_pid_file(const char* pidfile)
{
FILE *f;
int res;
f = fopen(pidfile, "w");
if (!f) {
perror(pidfile);
print_message(msg_system_error, "write_pid_file:%s:%s", pidfile, strerror(errno));
exit(3);
}
fprintf(f, "%d\n", getpid());
fclose(f);
res = fprintf(f, "%d\n", getpid());
if (res < 0) {
print_message(msg_system_error, "write_pid_file:fprintf:%s", strerror(errno));
exit(3);
}
res = fclose(f);
if (res == EOF) {
print_message(msg_system_error, "write_pid_file:fclose:%s", strerror(errno));
exit(3);
}
}