1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/** @file
A brief file description
@section license License
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*-------------------------------------------------------------------------
-------------------------------------------------------------------------*/
#include "libts.h"
#if defined(linux)
#include "ink_killall.h"
#include "ink_resource.h"
#define PROC_BASE "/proc"
#define INITIAL_PIDVSIZE 32
int
ink_killall(const char *pname, int sig)
{
int err;
pid_t *pidv;
int pidvcnt;
if (ink_killall_get_pidv_xmalloc(pname, &pidv, &pidvcnt) < 0) {
return -1;
}
if (pidvcnt == 0) {
xfree(pidv);
return 0;
}
err = ink_killall_kill_pidv(pidv, pidvcnt, sig);
xfree(pidv);
return err;
}
int
ink_killall_get_pidv_xmalloc(const char *pname, pid_t ** pidv, int *pidvcnt)
{
DIR *dir;
FILE *fp;
struct dirent *de;
pid_t pid, self;
char buf[LINE_MAX], *p, *comm;
int pidvsize = INITIAL_PIDVSIZE;
if (!pname || !pidv || !pidvcnt)
goto l_error;
self = getpid();
if (!(dir = opendir(PROC_BASE)))
goto l_error;
*pidvcnt = 0;
if (!(*pidv = (pid_t *) xmalloc(pidvsize * sizeof(pid_t))))
goto l_error;
while ((de = readdir(dir))) {
if (!(pid = (pid_t) atoi(de->d_name)) || pid == self)
continue;
snprintf(buf, sizeof(buf), PROC_BASE "/%d/stat", pid);
if ((fp = fopen(buf, "r"))) {
if (fgets(buf, sizeof buf, fp) == 0)
goto l_close;
if ((p = strchr(buf, '('))) {
comm = p + 1;
if ((p = strchr(comm, ')')))
*p = '\0';
else
goto l_close;
if (strcmp(comm, pname) == 0) {
if (*pidvcnt >= pidvsize) {
pid_t *pidv_realloc;
pidvsize *= 2;
if (!(pidv_realloc = (pid_t *) xrealloc(*pidv, pidvsize * sizeof(pid_t)))) {
xfree(*pidv);
goto l_error;
} else {
*pidv = pidv_realloc;
}
}
(*pidv)[*pidvcnt] = pid;
(*pidvcnt)++;
}
}
l_close:
fclose(fp);
}
}
closedir(dir);
if (*pidvcnt == 0) {
xfree(*pidv);
*pidv = 0;
}
return 0;
l_error:
*pidv = NULL;
*pidvcnt = 0;
return -1;
}
int
ink_killall_kill_pidv(pid_t * pidv, int pidvcnt, int sig)
{
int err = 0;
if (!pidv || (pidvcnt <= 0))
return -1;
while (pidvcnt > 0) {
pidvcnt--;
if (kill(pidv[pidvcnt], sig) < 0)
err = -1;
}
return err;
}
#endif // linux check
|
