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- size reduction of pidof

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- fix typo in reverse_pidlist
This commit is contained in:
Bernhard Reutner-Fischer 2005-10-07 15:44:37 +00:00
parent 6c0642d772
commit ab52db8d5e
2 changed files with 31 additions and 43 deletions
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2
libbb/find_pid_by_name.c
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@ -45,7 +45,7 @@ extern long* find_pid_by_name( const char* pidName)
extern long *pidlist_reverse(long *pidList) extern long *pidlist_reverse(long *pidList)
{ {
int i=0; int i=0;
while (pidList[i] > 0 && i++); while (pidList[i] > 0 && ++i);
if ( i-- > 0) { if ( i-- > 0) {
long k; long k;
int j; int j;

72
procps/pidof.c
View File

@ -15,6 +15,7 @@
#include <signal.h> #include <signal.h>
#include <ctype.h> #include <ctype.h>
#include <string.h> #include <string.h>
#include <sys/types.h>
#include <unistd.h> #include <unistd.h>
#include "busybox.h" #include "busybox.h"
@ -29,7 +30,6 @@
#if ENABLE_FEATURE_PIDOF_OMIT #if ENABLE_FEATURE_PIDOF_OMIT
#define _OMIT_COMPL(a) a #define _OMIT_COMPL(a) a
#define _OMIT(a) ,a #define _OMIT(a) ,a
static llist_t *omits; /* list of pids to omit */
#if ENABLE_FEATURE_PIDOF_SINGLE #if ENABLE_FEATURE_PIDOF_SINGLE
#define OMIT (1<<1) #define OMIT (1<<1)
#else #else
@ -39,58 +39,45 @@ static llist_t *omits; /* list of pids to omit */
#define _OMIT_COMPL(a) "" #define _OMIT_COMPL(a) ""
#define _OMIT(a) #define _OMIT(a)
#define OMIT (0) #define OMIT (0)
#define omitted (0)
#endif #endif
extern int pidof_main(int argc, char **argv) extern int pidof_main(int argc, char **argv)
{ {
int n = 0; unsigned n = 0;
int fail = 1; unsigned fail = 1;
unsigned long int opt; unsigned long int opt;
#if ENABLE_FEATURE_PIDOF_OMIT #if ENABLE_FEATURE_PIDOF_OMIT
llist_t *omits = NULL; /* list of pids to omit */
bb_opt_complementally = _OMIT_COMPL("o*"); bb_opt_complementally = _OMIT_COMPL("o*");
#endif #endif
/* do option parsing */ /* do unconditional option parsing */
if ((opt = bb_getopt_ulflags(argc, argv, opt = bb_getopt_ulflags(argc, argv,
_SINGLE_COMPL("s") _OMIT_COMPL("o:") _SINGLE_COMPL("s") _OMIT_COMPL("o:")
_OMIT(&omits))) _OMIT(&omits));
> 0) {
#if ENABLE_FEATURE_PIDOF_SINGLE
if (!(opt & SINGLE))
#endif
#if ENABLE_FEATURE_PIDOF_OMIT
if (!(opt & OMIT))
#endif
bb_show_usage();
}
#if ENABLE_FEATURE_PIDOF_OMIT #if ENABLE_FEATURE_PIDOF_OMIT
/* fill omit list. */ /* fill omit list. */
{ {
RESERVE_CONFIG_BUFFER(getppid_str, 32); RESERVE_CONFIG_BUFFER(getppid_str, 32);
llist_t * omits_p = omits; llist_t * omits_p = omits;
while (omits_p) { while (omits_p) {
/* are we asked to exclude the parent's process ID? */ /* are we asked to exclude the parent's process ID? */
if (omits_p->data[0] == '%') {
if (!strncmp(omits_p->data, "%PPID", 5)) { if (!strncmp(omits_p->data, "%PPID", 5)) {
/* yes, exclude ppid */ omits_p = llist_free_one(omits_p);
snprintf(getppid_str, sizeof(getppid_str), "%ld", getppid()); snprintf(getppid_str, sizeof(getppid_str), "%d", getppid());
// omits_p->data = getppid_str; omits_p = llist_add_to(omits_p, getppid_str);
#if 0 #if 0
} else { } else {
bb_error_msg_and_die("illegal omit pid value (%s)!\n", bb_error_msg_and_die("illegal omit pid value (%s)!\n",
omits_p->data); omits_p->data);
#endif #endif
} }
} else { omits_p = omits_p->link;
/* 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->data = getppid_str; if (ENABLE_FEATURE_CLEAN_UP)
omits_p = omits_p->link; RELEASE_CONFIG_BUFFER(getppid_str);
}
RELEASE_CONFIG_BUFFER(getppid_str);
} }
#endif #endif
/* Looks like everything is set to go. */ /* 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])); pidList = pidlist_reverse(find_pid_by_name(argv[optind]));
for(pl = pidList; *pl > 0; pl++) { for(pl = pidList; *pl > 0; pl++) {
#if ENABLE_FEATURE_PIDOF_OMIT #if ENABLE_FEATURE_PIDOF_OMIT
unsigned short omitted = 0; unsigned omitted = 0;
if (opt & OMIT) { if (opt & OMIT) {
llist_t *omits_p = omits; llist_t *omits_p = omits;
while (omits_p) while (omits_p)
@ -111,18 +98,19 @@ extern int pidof_main(int argc, char **argv)
} else } else
omits_p = omits_p->link; omits_p = omits_p->link;
} }
if (!omitted)
#endif #endif
printf("%s%ld", (n++ ? " " : ""), *pl); if (!omitted) {
#if ENABLE_FEATURE_PIDOF_OMIT if (n) {
fail = omitted; putchar(' ');
#else } else {
fail = 0; n = 1;
#endif }
#if ENABLE_FEATURE_PIDOF_SINGLE printf("%ld", *pl);
if (opt & SINGLE) }
fail = (!ENABLE_FEATURE_PIDOF_OMIT && omitted);
if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & SINGLE))
break; break;
#endif
} }
free(pidList); free(pidList);
optind++; optind++;