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authorEric Andersen2003-07-26 07:41:56 +0000
committerEric Andersen2003-07-26 07:41:56 +0000
commit7d72e796d6362872fe0075f936589bba23124344 (patch)
treea7c306e39d321a451093c5a6c114c7fa7bcfb7f1 /procps
parentd5868c169214b2be273c8a5ecb0a30ff1368faba (diff)
downloadbusybox-7d72e796d6362872fe0075f936589bba23124344.zip
busybox-7d72e796d6362872fe0075f936589bba23124344.tar.gz
Rework kill / killall so it behaves itself, even when subjected
to abuse. -Erik
Diffstat (limited to 'procps')
-rw-r--r--procps/kill.c122
1 files changed, 61 insertions, 61 deletions
diff --git a/procps/kill.c b/procps/kill.c
index 717d8c6..f11623e 100644
--- a/procps/kill.c
+++ b/procps/kill.c
@@ -35,10 +35,9 @@
static const int KILL = 0;
static const int KILLALL = 1;
-
extern int kill_main(int argc, char **argv)
{
- int whichApp, sig = SIGTERM, quiet;
+ int whichApp, signo = SIGTERM, quiet = 0;
const char *name;
int errors = 0;
@@ -49,58 +48,59 @@ extern int kill_main(int argc, char **argv)
whichApp = KILL;
#endif
- quiet=0;
- argc--;
- argv++;
/* Parse any options */
- if (argc < 1)
+ if (argc < 2)
bb_show_usage();
- while (argc > 0 && **argv == '-') {
- while (*++(*argv)) {
- switch (**argv) {
-#ifdef CONFIG_KILLALL
- case 'q':
- quiet++;
- break;
-#endif
- case 'l':
- if(argc>1) {
- for(argv++; *argv; argv++) {
- name = u_signal_names(*argv, &sig, -1);
- if(name!=NULL)
- printf("%s\n", name);
- }
- } else {
- int col = 0;
- for(sig=1; sig < NSIG; sig++) {
- name = u_signal_names(0, &sig, 1);
- if(name==NULL) /* unnamed */
- continue;
- col += printf("%2d) %-16s", sig, name);
- if (col > 60) {
- printf("\n");
- col = 0;
- }
- }
- printf("\n");
- }
- return EXIT_SUCCESS;
- case '-':
- bb_show_usage();
- default:
- name = u_signal_names(*argv, &sig, 0);
- if(name==NULL)
- bb_error_msg_and_die( "bad signal name: %s", *argv);
- argc--;
- argv++;
- goto do_it_now;
+ if(argv[1][0] != '-'){
+ argv++;
+ argc--;
+ goto do_it_now;
+ }
+
+ /* The -l option, which prints out signal names. */
+ if(argv[1][1]=='l' && argv[1][2]=='\0'){
+ if(argc==2) {
+ /* Print the whole signal list */
+ int col = 0;
+ for(signo=1; signo < NSIG; signo++) {
+ name = u_signal_names(0, &signo, 1);
+ if(name==NULL) /* unnamed */
+ continue;
+ col += printf("%2d) %-16s", signo, name);
+ if (col > 60) {
+ printf("\n");
+ col = 0;
+ }
+ }
+ printf("\n");
+
+ } else {
+ for(argv++; *argv; argv++) {
+ name = u_signal_names(*argv, &signo, -1);
+ if(name!=NULL)
+ printf("%s\n", name);
}
- argc--;
- argv++;
}
+ /* If they specified -l, were all done */
+ return EXIT_SUCCESS;
}
+ /* The -q quiet option */
+ if(argv[1][1]=='q' && argv[1][2]=='\0'){
+ quiet++;
+ argv++;
+ argc--;
+ if(argv[1][0] != '-'){
+ goto do_it_now;
+ }
+ }
+
+ if(!u_signal_names(argv[1]+1, &signo, 0))
+ bb_error_msg_and_die( "bad signal name '%s'", argv[1]+1);
+ argv+=2;
+ argc-=2;
+
do_it_now:
if (whichApp == KILL) {
@@ -109,9 +109,9 @@ do_it_now:
int pid;
if (!isdigit(**argv))
- bb_perror_msg_and_die( "Bad PID");
+ bb_error_msg_and_die( "Bad PID '%s'", *argv);
pid = strtol(*argv, NULL, 0);
- if (kill(pid, sig) != 0) {
+ if (kill(pid, signo) != 0) {
bb_perror_msg( "Could not kill pid '%d'", pid);
errors++;
}
@@ -127,22 +127,22 @@ do_it_now:
long* pidList;
pidList = find_pid_by_name(*argv);
- if (*pidList <= 0) {
+ if (!pidList || *pidList<=0) {
errors++;
if (quiet==0)
bb_error_msg( "%s: no process killed", *argv);
- } else {
- long *pl;
-
- for(pl = pidList; *pl !=0 ; pl++) {
- if (*pl==myPid)
- continue;
- if (kill(*pl, sig) != 0) {
- errors++;
- if (quiet==0)
- bb_perror_msg( "Could not kill pid '%ld'", *pl);
- }
+ } else {
+ long *pl;
+
+ for(pl = pidList; *pl !=0 ; pl++) {
+ if (*pl==myPid)
+ continue;
+ if (kill(*pl, signo) != 0) {
+ errors++;
+ if (quiet==0)
+ bb_perror_msg( "Could not kill pid '%ld'", *pl);
}
+ }
}
free(pidList);
argv++;