do not duplicate CONFIG_PID_FILE_PATH and ".pid" strings

   text	   data	    bss	    dec	    hex	filename
 981737	    485	   7296	 989518	  f194e	busybox_old
 981704	    485	   7296	 989485	  f192d	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

8 files changed, 33 insertions, 11 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 7a1e13875..e0d5521e4 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1298,9 +1298,13 @@ llist_t *llist_find_str(llist_t *first, const char *str) FAST_FUNC;
 /* True only if we created pidfile which is *file*, not /dev/null etc */
 extern smallint wrote_pidfile;
 void write_pidfile(const char *path) FAST_FUNC;
+void write_pidfile_std_path_and_ext(const char *path) FAST_FUNC;
+void remove_pidfile_std_path_and_ext(const char *path) FAST_FUNC;
 #define remove_pidfile(path) do { if (wrote_pidfile) unlink(path); } while (0)
 #else
 enum { wrote_pidfile = 0 };
+#define write_pidfile_std_path_and_ext(path)  ((void)0)
+#define remove_pidfile_std_path_and_ext(path) ((void)0)
 #define write_pidfile(path)  ((void)0)
 #define remove_pidfile(path) ((void)0)
 #endif
diff --git a/libbb/pidfile.c b/libbb/pidfile.c
index a48dfc38b..a6a282562 100644
--- a/libbb/pidfile.c
+++ b/libbb/pidfile.c
@@ -38,3 +38,21 @@ void FAST_FUNC write_pidfile(const char *path)
         }
         close(pid_fd);
 }
+
+void FAST_FUNC write_pidfile_std_path_and_ext(const char *name)
+{
+        char buf[sizeof(CONFIG_PID_FILE_PATH) + 64];
+
+        snprintf(buf, sizeof(buf), CONFIG_PID_FILE_PATH"/%s.pid", name);
+        write_pidfile(buf);
+}
+
+void FAST_FUNC remove_pidfile_std_path_and_ext(const char *name)
+{
+        char buf[sizeof(CONFIG_PID_FILE_PATH) + 64];
+
+        if (!wrote_pidfile)
+                return;
+        snprintf(buf, sizeof(buf), CONFIG_PID_FILE_PATH"/%s.pid", name);
+        unlink(buf);
+}
diff --git a/miscutils/crond.c b/miscutils/crond.c
index 2e36c406b..25e5503c7 100644
--- a/miscutils/crond.c
+++ b/miscutils/crond.c
@@ -1056,7 +1056,7 @@ int crond_main(int argc UNUSED_PARAM, char **argv)
 
         log8("crond (busybox "BB_VER") started, log level %d", G.log_level);
         rescan_crontab_dir();
-        write_pidfile(CONFIG_PID_FILE_PATH "/crond.pid");
+        write_pidfile_std_path_and_ext("crond");
 #if ENABLE_FEATURE_CROND_SPECIAL_TIMES
         if (touch_reboot_file())
                 start_jobs(START_ME_REBOOT); /* start @reboot entries, if any */
diff --git a/miscutils/watchdog.c b/miscutils/watchdog.c
index 1e9ecc5e8..86600b72f 100644
--- a/miscutils/watchdog.c
+++ b/miscutils/watchdog.c
@@ -64,7 +64,7 @@ static void shutdown_watchdog(void)
 
 static void shutdown_on_signal(int sig UNUSED_PARAM)
 {
-        remove_pidfile(CONFIG_PID_FILE_PATH "/watchdog.pid");
+        remove_pidfile_std_path_and_ext("watchdog");
         shutdown_watchdog();
         _exit(EXIT_SUCCESS);
 }
@@ -136,7 +136,7 @@ int watchdog_main(int argc UNUSED_PARAM, char **argv)
                 stimer_duration, htimer_duration * 1000);
 #endif
 
-        write_pidfile(CONFIG_PID_FILE_PATH "/watchdog.pid");
+        write_pidfile_std_path_and_ext("watchdog");
 
         while (1) {
                 /*
diff --git a/networking/inetd.c b/networking/inetd.c
index 8f871ee12..da6551174 100644
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -1207,7 +1207,7 @@ static void clean_up_and_exit(int sig UNUSED_PARAM)
                 if (ENABLE_FEATURE_CLEAN_UP)
                         close(sep->se_fd);
         }
-        remove_pidfile(CONFIG_PID_FILE_PATH "/inetd.pid");
+        remove_pidfile_std_path_and_ext("inetd");
         exit(EXIT_SUCCESS);
 }
 
@@ -1256,7 +1256,7 @@ int inetd_main(int argc UNUSED_PARAM, char **argv)
                 setgroups(1, &gid);
         }
 
-        write_pidfile(CONFIG_PID_FILE_PATH "/inetd.pid");
+        write_pidfile_std_path_and_ext("inetd");
 
         /* never fails under Linux (except if you pass it bad arguments) */
         getrlimit(RLIMIT_NOFILE, &rlim_ofile);
diff --git a/networking/ntpd.c b/networking/ntpd.c
index 0f474bc09..b2e77929e 100644
--- a/networking/ntpd.c
+++ b/networking/ntpd.c
@@ -2641,7 +2641,7 @@ int ntpd_main(int argc UNUSED_PARAM, char **argv)
          */
         cnt = G.peer_cnt * (INITIAL_SAMPLES + 1);
 
-        write_pidfile(CONFIG_PID_FILE_PATH "/ntpd.pid");
+        write_pidfile_std_path_and_ext("ntpd");
 
         while (!bb_got_signal) {
                 llist_t *item;
@@ -2814,7 +2814,7 @@ int ntpd_main(int argc UNUSED_PARAM, char **argv)
                 }
         } /* while (!bb_got_signal) */
 
-        remove_pidfile(CONFIG_PID_FILE_PATH "/ntpd.pid");
+        remove_pidfile_std_path_and_ext("ntpd");
         kill_myself_with_sig(bb_got_signal);
 }
 
diff --git a/sysklogd/klogd.c b/sysklogd/klogd.c
index 76eccf1da..17b6ca235 100644
--- a/sysklogd/klogd.c
+++ b/sysklogd/klogd.c
@@ -231,7 +231,7 @@ int klogd_main(int argc UNUSED_PARAM, char **argv)
 
         syslog(LOG_NOTICE, "klogd started: %s", bb_banner);
 
-        write_pidfile(CONFIG_PID_FILE_PATH "/klogd.pid");
+        write_pidfile_std_path_and_ext("klogd");
 
         used = 0;
         while (!bb_got_signal) {
@@ -295,7 +295,7 @@ int klogd_main(int argc UNUSED_PARAM, char **argv)
 
         klogd_close();
         syslog(LOG_NOTICE, "klogd: exiting");
-        remove_pidfile(CONFIG_PID_FILE_PATH "/klogd.pid");
+        remove_pidfile_std_path_and_ext("klogd");
         if (bb_got_signal)
                 kill_myself_with_sig(bb_got_signal);
         return EXIT_FAILURE;
diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c
index f12359476..d0dd1bd20 100644
--- a/sysklogd/syslogd.c
+++ b/sysklogd/syslogd.c
@@ -1098,7 +1098,7 @@ static void do_syslogd(void)
         } /* while (!bb_got_signal) */
 
         timestamp_and_log_internal("syslogd exiting");
-        remove_pidfile(CONFIG_PID_FILE_PATH "/syslogd.pid");
+        remove_pidfile_std_path_and_ext("syslogd");
         ipcsyslog_cleanup();
         if (option_mask32 & OPT_kmsg)
                 kmsg_cleanup();
@@ -1164,7 +1164,7 @@ int syslogd_main(int argc UNUSED_PARAM, char **argv)
         }
 
         //umask(0); - why??
-        write_pidfile(CONFIG_PID_FILE_PATH "/syslogd.pid");
+        write_pidfile_std_path_and_ext("syslogd");
 
         do_syslogd();
         /* return EXIT_SUCCESS; */