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authorBernhard Reutner-Fischer2005-10-07 15:44:37 +0000
committerBernhard Reutner-Fischer2005-10-07 15:44:37 +0000
commitab52db8d5ec63b037a85a609646ba93f96308138 (patch)
tree2733d2f072f4ff69cee6d2424f0451acc0b3a16a /procps/pidof.c
parent6c0642d772c6661186e2191174fa83182fdc443e (diff)
downloadbusybox-ab52db8d5ec63b037a85a609646ba93f96308138.zip
busybox-ab52db8d5ec63b037a85a609646ba93f96308138.tar.gz
- size reduction of pidof
- fix typo in reverse_pidlist
Diffstat (limited to 'procps/pidof.c')
-rw-r--r--procps/pidof.c72
1 files changed, 30 insertions, 42 deletions
diff --git a/procps/pidof.c b/procps/pidof.c
index 6f959e4..76c58df 100644
--- a/procps/pidof.c
+++ b/procps/pidof.c
@@ -15,6 +15,7 @@
#include <signal.h>
#include <ctype.h>
#include <string.h>
+#include <sys/types.h>
#include <unistd.h>
#include "busybox.h"
@@ -29,7 +30,6 @@
#if ENABLE_FEATURE_PIDOF_OMIT
#define _OMIT_COMPL(a) a
#define _OMIT(a) ,a
-static llist_t *omits; /* list of pids to omit */
#if ENABLE_FEATURE_PIDOF_SINGLE
#define OMIT (1<<1)
#else
@@ -39,58 +39,45 @@ static llist_t *omits; /* list of pids to omit */
#define _OMIT_COMPL(a) ""
#define _OMIT(a)
#define OMIT (0)
+#define omitted (0)
#endif
extern int pidof_main(int argc, char **argv)
{
- int n = 0;
- int fail = 1;
+ unsigned n = 0;
+ unsigned fail = 1;
unsigned long int opt;
#if ENABLE_FEATURE_PIDOF_OMIT
+ llist_t *omits = NULL; /* list of pids to omit */
bb_opt_complementally = _OMIT_COMPL("o*");
#endif
- /* do option parsing */
- if ((opt = bb_getopt_ulflags(argc, argv,
+ /* do unconditional option parsing */
+ opt = bb_getopt_ulflags(argc, argv,
_SINGLE_COMPL("s") _OMIT_COMPL("o:")
- _OMIT(&omits)))
- > 0) {
-#if ENABLE_FEATURE_PIDOF_SINGLE
- if (!(opt & SINGLE))
-#endif
-#if ENABLE_FEATURE_PIDOF_OMIT
- if (!(opt & OMIT))
-#endif
- bb_show_usage();
- }
+ _OMIT(&omits));
#if ENABLE_FEATURE_PIDOF_OMIT
/* fill omit list. */
{
- RESERVE_CONFIG_BUFFER(getppid_str, 32);
- llist_t * omits_p = omits;
- while (omits_p) {
- /* are we asked to exclude the parent's process ID? */
- if (omits_p->data[0] == '%') {
+ RESERVE_CONFIG_BUFFER(getppid_str, 32);
+ 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)) {
- /* yes, exclude ppid */
- snprintf(getppid_str, sizeof(getppid_str), "%ld", getppid());
-// omits_p->data = getppid_str;
+ omits_p = llist_free_one(omits_p);
+ snprintf(getppid_str, sizeof(getppid_str), "%d", getppid());
+ omits_p = llist_add_to(omits_p, getppid_str);
#if 0
} else {
bb_error_msg_and_die("illegal omit pid value (%s)!\n",
omits_p->data);
#endif
}
- } else {
- /* no, not talking about ppid but deal with usual case (pid). */
- snprintf(getppid_str, sizeof(getppid_str), "%ld",
- strtol(omits_p->data, NULL, 10));
+ omits_p = omits_p->link;
}
- omits_p->data = getppid_str;
- omits_p = omits_p->link;
- }
- RELEASE_CONFIG_BUFFER(getppid_str);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ RELEASE_CONFIG_BUFFER(getppid_str);
}
#endif
/* Looks like everything is set to go. */
@@ -102,7 +89,7 @@ extern int pidof_main(int argc, char **argv)
pidList = pidlist_reverse(find_pid_by_name(argv[optind]));
for(pl = pidList; *pl > 0; pl++) {
#if ENABLE_FEATURE_PIDOF_OMIT
- unsigned short omitted = 0;
+ unsigned omitted = 0;
if (opt & OMIT) {
llist_t *omits_p = omits;
while (omits_p)
@@ -111,18 +98,19 @@ extern int pidof_main(int argc, char **argv)
} else
omits_p = omits_p->link;
}
- if (!omitted)
#endif
- printf("%s%ld", (n++ ? " " : ""), *pl);
-#if ENABLE_FEATURE_PIDOF_OMIT
- fail = omitted;
-#else
- fail = 0;
-#endif
-#if ENABLE_FEATURE_PIDOF_SINGLE
- if (opt & SINGLE)
+ if (!omitted) {
+ if (n) {
+ putchar(' ');
+ } else {
+ n = 1;
+ }
+ printf("%ld", *pl);
+ }
+ fail = (!ENABLE_FEATURE_PIDOF_OMIT && omitted);
+
+ if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & SINGLE))
break;
-#endif
}
free(pidList);
optind++;