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Diffstat (limited to 'urunlevel/runlevel/killproc.c')
-rw-r--r-- | urunlevel/runlevel/killproc.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/urunlevel/runlevel/killproc.c b/urunlevel/runlevel/killproc.c new file mode 100644 index 0000000..fd91c10 --- /dev/null +++ b/urunlevel/runlevel/killproc.c | |||
@@ -0,0 +1,162 @@ | |||
1 | /* | ||
2 | * Mini killproc implementation for busybox. | ||
3 | * | ||
4 | * Copyright (C) 2005 by David Seikel won_fang@yahoo.com.au | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
14 | * General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | ||
19 | * 02111-1307 USA | ||
20 | * | ||
21 | */ | ||
22 | |||
23 | #include <ctype.h> | ||
24 | #include <signal.h> | ||
25 | #include <string.h> | ||
26 | #include <unistd.h> | ||
27 | |||
28 | #include "busybox.h" | ||
29 | #include "lib_init_d.h" | ||
30 | |||
31 | |||
32 | int killproc(char *pidfile, char *pathname, int my_signal) | ||
33 | { | ||
34 | char *pids = NULL; | ||
35 | int status = pidofproc(pidfile, pathname, &pids); | ||
36 | |||
37 | if (status == INIT_D_STATUS_OK) | ||
38 | { | ||
39 | int i; | ||
40 | char *pid; | ||
41 | char *strtok_temp; | ||
42 | |||
43 | pid = strtok_r(pids, " ", &strtok_temp); | ||
44 | for (i = 0; pid != NULL; i++) | ||
45 | { | ||
46 | int pid_num; | ||
47 | |||
48 | if (!isdigit(*pid)) | ||
49 | bb_error_msg( "Bad PID '%s'", pid); | ||
50 | pid_num = strtol(pid, NULL, 0); | ||
51 | if (my_signal != 0) | ||
52 | { | ||
53 | if (kill(pid_num, my_signal) != 0) | ||
54 | bb_perror_msg( "Could not kill pid '%d'", pid_num); | ||
55 | } | ||
56 | else | ||
57 | { | ||
58 | if (kill(pid_num, SIGTERM) != 0) | ||
59 | bb_perror_msg( "Could not kill pid '%d'", pid_num); | ||
60 | sleep(1); | ||
61 | status = pidofproc(pidfile, pathname, &pids); | ||
62 | if (status == INIT_D_STATUS_OK) | ||
63 | { | ||
64 | sleep(5); | ||
65 | status = pidofproc(pidfile, pathname, &pids); | ||
66 | if (status == INIT_D_STATUS_OK) | ||
67 | { | ||
68 | if (kill(pid_num, SIGKILL) != 0) | ||
69 | bb_perror_msg( "Could not kill pid '%d'", pid_num); | ||
70 | } | ||
71 | } | ||
72 | } | ||
73 | |||
74 | pid = strtok_r(NULL, " ", &strtok_temp); | ||
75 | } | ||
76 | |||
77 | status = pidofproc(pidfile, pathname, &pids); | ||
78 | if (status == INIT_D_STATUS_DEAD_PID) | ||
79 | { | ||
80 | if (pidfile != NULL) | ||
81 | remove_file(pidfile, FILEUTILS_FORCE); | ||
82 | status = INIT_D_STATUS_NOT_RUNNING; | ||
83 | } | ||
84 | if ((my_signal == 0) && (status == INIT_D_STATUS_NOT_RUNNING)) | ||
85 | status = INIT_D_STATUS_OK; | ||
86 | } | ||
87 | |||
88 | return status; | ||
89 | } | ||
90 | |||
91 | |||
92 | /* | ||
93 | killproc [-p pidfile] pathname [signal] | ||
94 | This stops the specified program. The program is | ||
95 | found using the algorithm given above. If a | ||
96 | signal is specified, using the | ||
97 | -signal_name or -signal_number syntaxes | ||
98 | as specified by the kill command, | ||
99 | the program is sent that signal. | ||
100 | Otherwise, a SIGTERM followed by a SIGKILL | ||
101 | after some number of seconds shall be sent. | ||
102 | If a program has been terminated, the pidfile should be removed if the | ||
103 | terminated process has not already done so. | ||
104 | Compliant applications may use the basename instead of the | ||
105 | pathname. | ||
106 | |||
107 | killproc should return the LSB defined exit status codes. If called | ||
108 | without a signal, it shall return 0 if the program has been stopped or | ||
109 | is not running and not 0 otherwise. If a signal is given, it shall return 0 | ||
110 | only if the program is running. | ||
111 | */ | ||
112 | |||
113 | |||
114 | int killproc_main(int argc, char **argv) | ||
115 | { | ||
116 | int i; | ||
117 | int my_signal = 0; | ||
118 | char *pidfile = NULL; | ||
119 | char *pathname = NULL; | ||
120 | char *signame = NULL; | ||
121 | |||
122 | for (i = 1; i < argc; i++) | ||
123 | { | ||
124 | char *p = argv[i]; | ||
125 | |||
126 | if (*p == '-') | ||
127 | { | ||
128 | p++; | ||
129 | if (*p == 'p') | ||
130 | { | ||
131 | if ((i + 1) < argc) | ||
132 | pidfile = argv[++i]; | ||
133 | else | ||
134 | bb_show_usage(); | ||
135 | } | ||
136 | else | ||
137 | signame = &argv[i][1]; | ||
138 | } | ||
139 | else if (pathname == NULL) | ||
140 | pathname = p; | ||
141 | else if (signame == NULL) | ||
142 | signame = p; | ||
143 | else | ||
144 | bb_show_usage(); | ||
145 | } | ||
146 | |||
147 | if (pathname == NULL) | ||
148 | bb_show_usage(); | ||
149 | |||
150 | if (signame != NULL) | ||
151 | { | ||
152 | u_signal_names(signame, &my_signal, 1); | ||
153 | if (my_signal == 0) | ||
154 | { | ||
155 | log_failure_msg("unknown signal."); | ||
156 | bb_show_usage(); | ||
157 | } | ||
158 | } | ||
159 | |||
160 | //bb_printf("ARGS - %s %s %d = %s\n", pidfile, pathname, my_signal, u_signal_names(NULL, &signal, 1)); | ||
161 | return killproc(pidfile, pathname, my_signal); | ||
162 | } | ||