diff options
author | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
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committer | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
commit | 73b16af8feec390afbabd9356d6e5e83c0390838 (patch) | |
tree | 3730020ba2f9caeb9d7815a975af51830b51ce11 /procps/pidof.c |
busybox: imported from http://www.busybox.net/downloads/busybox-1.13.3.tar.bz2busybox-1.13.3
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Diffstat (limited to 'procps/pidof.c')
-rw-r--r-- | procps/pidof.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/procps/pidof.c b/procps/pidof.c new file mode 100644 index 0000000..7805044 --- /dev/null +++ b/procps/pidof.c @@ -0,0 +1,86 @@ +/* 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 "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, +}; + +int pidof_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int pidof_main(int argc UNUSED_PARAM, char **argv) +{ + unsigned first = 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(argv, "" + USE_FEATURE_PIDOF_SINGLE ("s") + USE_FEATURE_PIDOF_OMIT("o:", &omits)); + +#if ENABLE_FEATURE_PIDOF_OMIT + /* fill omit list. */ + { + llist_t *omits_p = omits; + while (omits_p) { + /* are we asked to exclude the parent's process ID? */ + if (strcmp(omits_p->data, "%PPID") == 0) { + omits_p->data = utoa((unsigned)getppid()); + } + omits_p = omits_p->link; + } + } +#endif + /* Looks like everything is set to go. */ + argv += optind; + while (*argv) { + pid_t *pidList; + pid_t *pl; + + /* reverse the pidlist like GNU pidof does. */ + pidList = pidlist_reverse(find_pid_by_name(*argv)); + for (pl = pidList; *pl; pl++) { +#if ENABLE_FEATURE_PIDOF_OMIT + if (opt & OPT_OMIT) { + llist_t *omits_p = omits; + while (omits_p) { + if (xatoul(omits_p->data) == (unsigned long)(*pl)) { + goto omitting; + } + omits_p = omits_p->link; + } + } +#endif + printf(" %u" + first, (unsigned)*pl); + first = 0; + if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & OPT_SINGLE)) + break; +#if ENABLE_FEATURE_PIDOF_OMIT + omitting: ; +#endif + } + free(pidList); + argv++; + } + if (!first) + bb_putchar('\n'); + +#if ENABLE_FEATURE_PIDOF_OMIT + if (ENABLE_FEATURE_CLEAN_UP) + llist_free(omits, NULL); +#endif + return first; /* 1 (failure) - no processes found */ +} |