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-rw-r--r--procps/kill.c10
-rw-r--r--procps/renice.c148
2 files changed, 5 insertions, 153 deletions
diff --git a/procps/kill.c b/procps/kill.c
index 7ae5beead..975a3e8c5 100644
--- a/procps/kill.c
+++ b/procps/kill.c
@@ -201,7 +201,7 @@ int kill_main(int argc UNUSED_PARAM, char **argv)
201 pid_t sid; 201 pid_t sid;
202 procps_status_t* p = NULL; 202 procps_status_t* p = NULL;
203 /* compat: exitcode 2 is "no one was signaled" */ 203 /* compat: exitcode 2 is "no one was signaled" */
204 int ret = 2; 204 errors = 2;
205 205
206 /* Find out our session id */ 206 /* Find out our session id */
207 sid = getsid(pid); 207 sid = getsid(pid);
@@ -229,7 +229,7 @@ int kill_main(int argc UNUSED_PARAM, char **argv)
229 arg = *args++; 229 arg = *args++;
230 if (arg[0] != '-' || arg[1] != 'o') { 230 if (arg[0] != '-' || arg[1] != 'o') {
231 bb_error_msg("bad option '%s'", arg); 231 bb_error_msg("bad option '%s'", arg);
232 ret = 1; 232 errors = 1;
233 goto resume; 233 goto resume;
234 } 234 }
235 arg += 2; 235 arg += 2;
@@ -238,21 +238,21 @@ int kill_main(int argc UNUSED_PARAM, char **argv)
238 omit = bb_strtoi(arg, NULL, 10); 238 omit = bb_strtoi(arg, NULL, 10);
239 if (errno) { 239 if (errno) {
240 bb_error_msg("invalid number '%s'", arg); 240 bb_error_msg("invalid number '%s'", arg);
241 ret = 1; 241 errors = 1;
242 goto resume; 242 goto resume;
243 } 243 }
244 if (p->pid == omit) 244 if (p->pid == omit)
245 goto dont_kill; 245 goto dont_kill;
246 } 246 }
247 kill(p->pid, signo); 247 kill(p->pid, signo);
248 ret = 0; 248 errors = 0;
249 dont_kill: ; 249 dont_kill: ;
250 } 250 }
251 resume: 251 resume:
252 /* And let them continue */ 252 /* And let them continue */
253 if (signo != SIGSTOP && signo != SIGCONT) 253 if (signo != SIGSTOP && signo != SIGCONT)
254 kill(-1, SIGCONT); 254 kill(-1, SIGCONT);
255 return ret; 255 return errors;
256 } 256 }
257 257
258#if ENABLE_KILL || ENABLE_KILLALL 258#if ENABLE_KILL || ENABLE_KILLALL
diff --git a/procps/renice.c b/procps/renice.c
deleted file mode 100644
index 64213c680..000000000
--- a/procps/renice.c
+++ /dev/null
@@ -1,148 +0,0 @@
1/* vi: set sw=4 ts=4: */
2/*
3 * renice implementation for busybox
4 *
5 * Copyright (C) 2005 Manuel Novoa III <mjn3@codepoet.org>
6 *
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
8 */
9
10/* Notes:
11 * Setting an absolute priority was obsoleted in SUSv2 and removed
12 * in SUSv3. However, the common linux version of renice does
13 * absolute and not relative. So we'll continue supporting absolute,
14 * although the stdout logging has been removed since both SUSv2 and
15 * SUSv3 specify that stdout isn't used.
16 *
17 * This version is lenient in that it doesn't require any IDs. The
18 * options -p, -g, and -u are treated as mode switches for the
19 * following IDs (if any). Multiple switches are allowed.
20 */
21//config:config RENICE
22//config: bool "renice"
23//config: default y
24//config: help
25//config: Renice alters the scheduling priority of one or more running
26//config: processes.
27
28//applet:IF_RENICE(APPLET(renice, BB_DIR_USR_BIN, BB_SUID_DROP))
29
30//kbuild:lib-$(CONFIG_RENICE) += renice.o
31
32//usage:#define renice_trivial_usage
33//usage: "[-n] PRIORITY [[-p | -g | -u] ID...]..."
34//usage:#define renice_full_usage "\n\n"
35//usage: "Change scheduling priority of a running process\n"
36//usage: "\n -n Add PRIORITY to current nice value"
37//usage: "\n Without -n, nice value is set to PRIORITY"
38//usage: "\n -p Process ids (default)"
39//usage: "\n -g Process group ids"
40//usage: "\n -u Process user names"
41
42#include "libbb.h"
43#include <sys/resource.h>
44
45void BUG_bad_PRIO_PROCESS(void);
46void BUG_bad_PRIO_PGRP(void);
47void BUG_bad_PRIO_USER(void);
48
49int renice_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
50int renice_main(int argc UNUSED_PARAM, char **argv)
51{
52 static const char Xetpriority_msg[] ALIGN1 = "%cetpriority";
53
54 int retval = EXIT_SUCCESS;
55 int which = PRIO_PROCESS; /* Default 'which' value. */
56 int use_relative = 0;
57 int adjustment, new_priority;
58 unsigned who;
59 char *arg;
60
61 /* Yes, they are not #defines in glibc 2.4! #if won't work */
62 if (PRIO_PROCESS < CHAR_MIN || PRIO_PROCESS > CHAR_MAX)
63 BUG_bad_PRIO_PROCESS();
64 if (PRIO_PGRP < CHAR_MIN || PRIO_PGRP > CHAR_MAX)
65 BUG_bad_PRIO_PGRP();
66 if (PRIO_USER < CHAR_MIN || PRIO_USER > CHAR_MAX)
67 BUG_bad_PRIO_USER();
68
69 arg = *++argv;
70
71 /* Check if we are using a relative adjustment. */
72 if (arg && arg[0] == '-' && arg[1] == 'n') {
73 use_relative = 1;
74 if (!arg[2])
75 arg = *++argv;
76 else
77 arg += 2;
78 }
79
80 if (!arg) { /* No args? Then show usage. */
81 bb_show_usage();
82 }
83
84 /* Get the priority adjustment (absolute or relative). */
85 adjustment = xatoi_range(arg, INT_MIN/2, INT_MAX/2);
86
87 while ((arg = *++argv) != NULL) {
88 /* Check for a mode switch. */
89 if (arg[0] == '-' && arg[1]) {
90 static const char opts[] ALIGN1 = {
91 'p', 'g', 'u', 0, PRIO_PROCESS, PRIO_PGRP, PRIO_USER
92 };
93 const char *p = strchr(opts, arg[1]);
94 if (p) {
95 which = p[4];
96 if (!arg[2])
97 continue;
98 arg += 2;
99 }
100 }
101
102 /* Process an ID arg. */
103 if (which == PRIO_USER) {
104 struct passwd *p;
105 p = getpwnam(arg);
106 if (!p) {
107 bb_error_msg("unknown user %s", arg);
108 goto HAD_ERROR;
109 }
110 who = p->pw_uid;
111 } else {
112 who = bb_strtou(arg, NULL, 10);
113 if (errno) {
114 bb_error_msg("invalid number '%s'", arg);
115 goto HAD_ERROR;
116 }
117 }
118
119 /* Get priority to use, and set it. */
120 if (use_relative) {
121 int old_priority;
122
123 errno = 0; /* Needed for getpriority error detection. */
124 old_priority = getpriority(which, who);
125 if (errno) {
126 bb_perror_msg(Xetpriority_msg, 'g');
127 goto HAD_ERROR;
128 }
129
130 new_priority = old_priority + adjustment;
131 } else {
132 new_priority = adjustment;
133 }
134
135 if (setpriority(which, who, new_priority) == 0) {
136 continue;
137 }
138
139 bb_perror_msg(Xetpriority_msg, 's');
140 HAD_ERROR:
141 retval = EXIT_FAILURE;
142 }
143
144 /* No need to check for errors outputing to stderr since, if it
145 * was used, the HAD_ERROR label was reached and retval was set. */
146
147 return retval;
148}