Bump to version 1.22.1

[platform/upstream/busybox.git] / procps / pidof.c

diff --git a/procps/pidof.c b/procps/pidof.c
index 1942399..6d7b591 100644 (file)
--- a/procps/pidof.c
+++ b/procps/pidof.c
@@ -4,16 +4,44 @@
  *
  * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *
- * Licensed under the GPL version 2, see the file LICENSE in this tarball.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 
+//usage:#if (ENABLE_FEATURE_PIDOF_SINGLE || ENABLE_FEATURE_PIDOF_OMIT)
+//usage:#define pidof_trivial_usage
+//usage:       "[OPTIONS] [NAME]..."
+//usage:#define USAGE_PIDOF "\n"
+//usage:#else
+//usage:#define pidof_trivial_usage
+//usage:       "[NAME]..."
+//usage:#define USAGE_PIDOF /* none */
+//usage:#endif
+//usage:#define pidof_full_usage "\n\n"
+//usage:       "List PIDs of all processes with names that match NAMEs"
+//usage:       USAGE_PIDOF
+//usage:       IF_FEATURE_PIDOF_SINGLE(
+//usage:     "\n       -s      Show only one PID"
+//usage:       )
+//usage:       IF_FEATURE_PIDOF_OMIT(
+//usage:     "\n       -o PID  Omit given pid"
+//usage:     "\n               Use %PPID to omit pid of pidof's parent"
+//usage:       )
+//usage:
+//usage:#define pidof_example_usage
+//usage:       "$ pidof init\n"
+//usage:       "1\n"
+//usage:       IF_FEATURE_PIDOF_OMIT(
+//usage:       "$ pidof /bin/sh\n20351 5973 5950\n")
+//usage:       IF_FEATURE_PIDOF_OMIT(
+//usage:       "$ pidof /bin/sh -o %PPID\n20351 5950")
+
 #include "libbb.h"
 
 enum {
-       USE_FEATURE_PIDOF_SINGLE(OPTBIT_SINGLE,)
-       USE_FEATURE_PIDOF_OMIT(  OPTBIT_OMIT  ,)
-       OPT_SINGLE = USE_FEATURE_PIDOF_SINGLE((1<<OPTBIT_SINGLE)) + 0,
-       OPT_OMIT   = USE_FEATURE_PIDOF_OMIT(  (1<<OPTBIT_OMIT  )) + 0,
+       IF_FEATURE_PIDOF_SINGLE(OPTBIT_SINGLE,)
+       IF_FEATURE_PIDOF_OMIT(  OPTBIT_OMIT  ,)
+       OPT_SINGLE = IF_FEATURE_PIDOF_SINGLE((1<<OPTBIT_SINGLE)) + 0,
+       OPT_OMIT   = IF_FEATURE_PIDOF_OMIT(  (1<<OPTBIT_OMIT  )) + 0,
 };
 
 int pidof_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@@ -28,8 +56,8 @@ int pidof_main(int argc UNUSED_PARAM, char **argv)
 
        /* do unconditional option parsing */
        opt = getopt32(argv, ""
-                       USE_FEATURE_PIDOF_SINGLE ("s")
-                       USE_FEATURE_PIDOF_OMIT("o:", &omits));
+                       IF_FEATURE_PIDOF_SINGLE ("s")
+                       IF_FEATURE_PIDOF_OMIT("o:", &omits));
 
 #if ENABLE_FEATURE_PIDOF_OMIT
        /* fill omit list.  */