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comparison toys/killall.c @ 477:f0b07ce5f125

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Cleanups to pidof (including some global infrastructure shared with killall).
author Rob Landley <rob@landley.net>
date Sat, 18 Feb 2012 18:09:14 -0600
parents 1fb149e75ebf
children 1a7110479d49
comparison
equal deleted inserted replaced
476:d10b58563cff 477:f0b07ce5f125
1 /* vi: set sw=4 ts=4: 1 /* vi: set sw=4 ts=4:
2 * 2 *
3 * killall.c - Send a signal (default: TERM) to all processes with the given names. 3 * killall.c - Send signal (default: TERM) to all processes with given names.
4 * 4 *
5 * Copyright 2012 Andreas Heck <aheck@gmx.de> 5 * Copyright 2012 Andreas Heck <aheck@gmx.de>
6 * 6 *
7 * Not in SUSv4. 7 * Not in SUSv4.
8 * See http://opengroup.org/onlinepubs/9699919799/utilities/ 8
9 9 USE_KILLALL(NEWTOY(killall, "<1?lq", TOYFLAG_USR|TOYFLAG_BIN))
10 USE_KILLALL(NEWTOY(killall, "?lq", TOYFLAG_USR|TOYFLAG_BIN))
11 10
12 config KILLALL 11 config KILLALL
13 bool "killall" 12 bool "killall"
14 default y 13 default y
15 help 14 help
25 24
26 #define FLAG_q 1 25 #define FLAG_q 1
27 #define FLAG_l 2 26 #define FLAG_l 2
28 27
29 DEFINE_GLOBALS( 28 DEFINE_GLOBALS(
30 int matched; 29 int matched;
31 int signum; 30 int signum;
32 ) 31 )
33 #define TT this.killall 32 #define TT this.killall
34 33
35 struct signame { 34 struct signame {
36 int num; 35 int num;
147 {SIGUNUSED, "UNUSED"}, 146 {SIGUNUSED, "UNUSED"},
148 #endif 147 #endif
149 {0, NULL} 148 {0, NULL}
150 }; 149 };
151 150
152 static int sig_to_num(const char *pidstr) { 151 static int sig_to_num(const char *pidstr)
152 {
153 int i, num; 153 int i, num;
154 154
155 if (isdigit(pidstr[0])) { 155 if (isdigit(pidstr[0])) {
156 num = atoi(pidstr); 156 num = atoi(pidstr);
157 157
165 } 165 }
166 166
167 return -1; 167 return -1;
168 } 168 }
169 169
170 static void print_signals() { 170 static void print_signals()
171 {
171 int i; 172 int i;
172 173
173 for (i = 0; signames[i].num; i++) { 174 for (i = 0; signames[i].num; i++) {
174 puts(signames[i].name); 175 puts(signames[i].name);
175 } 176 }
176 } 177 }
177 178
178 static void kill_process(const char *pidstr) { 179 static void kill_process(pid_t pid)
180 {
179 int ret; 181 int ret;
180 pid_t pid = atoi(pidstr);
181 182
182 TT.matched = 1; 183 TT.matched = 1;
183 ret = kill(pid, TT.signum); 184 ret = kill(pid, TT.signum);
184 185
185 if (ret == -1) { 186 if (ret == -1 && !(toys.optflags & FLAG_q)) perror("kill");
186 if (toys.optflags & FLAG_q) perror("kill");
187 }
188 } 187 }
189 188
190 void killall_main(void) 189 void killall_main(void)
191 { 190 {
192 char **names; 191 char **names;
193 192
194 TT.matched = 0;
195 TT.signum = SIGTERM; 193 TT.signum = SIGTERM;
196 194
197 if (toys.optflags & FLAG_l) { 195 if (toys.optflags & FLAG_l) {
198 print_signals(); 196 print_signals();
199 exit(0); 197 return;
200 } 198 }
201 199
202 if (!*toys.optargs) { 200 if (!*toys.optargs) {
203 toys.exithelp = 1; 201 toys.exithelp = 1;
204 error_exit("Process name missing!"); 202 error_exit("Process name missing!");
205 } 203 }
206 204
207 names = toys.optargs; 205 names = toys.optargs;
208 206
209 if ((*toys.optargs)[0] == '-') { 207 if (**names == '-') {
210 TT.signum = sig_to_num(&(*toys.optargs)[1]); 208 TT.signum = sig_to_num((*names)+1);
211 if (TT.signum <= 0) { 209 if (TT.signum <= 0) {
212 if (toys.optflags & FLAG_q) fprintf(stderr, "Invalid signal\n"); 210 if (toys.optflags & FLAG_q) error_exit("Invalid signal");
213 exit(1); 211 exit(1);
214 } 212 }
215 names = ++toys.optargs; 213 names++;
216 } 214 }
217 215
218 if (!*names) { 216 if (!*names) {
219 toys.exithelp = 1; 217 toys.exithelp = 1;
220 error_exit("Process name missing!"); 218 error_exit("Process name missing!");