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Diffstat (limited to 'i/pc104/initrd/conf/busybox/procps/pidof.c')
-rw-r--r--i/pc104/initrd/conf/busybox/procps/pidof.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/procps/pidof.c b/i/pc104/initrd/conf/busybox/procps/pidof.c
new file mode 100644
index 0000000..ea2520a
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/procps/pidof.c
@@ -0,0 +1,91 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * pidof implementation for busybox
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under the GPL version 2, see the file LICENSE in this tarball.
+ */
+
+#include "busybox.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,
+};
+
+int pidof_main(int argc, char **argv);
+int pidof_main(int argc, char **argv)
+{
+ unsigned first = 1;
+ unsigned fail = 1;
+ unsigned opt;
+#if ENABLE_FEATURE_PIDOF_OMIT
+ llist_t *omits = NULL; /* list of pids to omit */
+ opt_complementary = "o::";
+#endif
+
+ /* do unconditional option parsing */
+ opt = getopt32(argc, argv, ""
+ USE_FEATURE_PIDOF_SINGLE ("s")
+ USE_FEATURE_PIDOF_OMIT("o:", &omits));
+
+#if ENABLE_FEATURE_PIDOF_OMIT
+ /* fill omit list. */
+ {
+ char getppid_str[sizeof(int)*3 + 1];
+ llist_t * omits_p = omits;
+ while (omits_p) {
+ /* are we asked to exclude the parent's process ID? */
+ if (!strncmp(omits_p->data, "%PPID", 5)) {
+ llist_pop(&omits_p);
+ snprintf(getppid_str, sizeof(getppid_str), "%u", (unsigned)getppid());
+ llist_add_to(&omits_p, getppid_str);
+ }
+ omits_p = omits_p->link;
+ }
+ }
+#endif
+ /* Looks like everything is set to go. */
+ while (optind < argc) {
+ pid_t *pidList;
+ pid_t *pl;
+
+ /* reverse the pidlist like GNU pidof does. */
+ pidList = pidlist_reverse(find_pid_by_name(argv[optind]));
+ for (pl = pidList; *pl; pl++) {
+ SKIP_FEATURE_PIDOF_OMIT(const) unsigned omitted = 0;
+#if ENABLE_FEATURE_PIDOF_OMIT
+ if (opt & OPT_OMIT) {
+ llist_t *omits_p = omits;
+ while (omits_p) {
+ if (xatoul(omits_p->data) == *pl) {
+ omitted = 1;
+ break;
+ } else
+ omits_p = omits_p->link;
+ }
+ }
+#endif
+ if (!omitted) {
+ printf(" %u" + first, (unsigned)*pl);
+ first = 0;
+ }
+ fail = (!ENABLE_FEATURE_PIDOF_OMIT && omitted);
+
+ if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & OPT_SINGLE))
+ break;
+ }
+ free(pidList);
+ optind++;
+ }
+ putchar('\n');
+
+#if ENABLE_FEATURE_PIDOF_OMIT
+ if (ENABLE_FEATURE_CLEAN_UP)
+ llist_free(omits, NULL);
+#endif
+ return fail ? EXIT_FAILURE : EXIT_SUCCESS;
+}