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Commit | Line | Data |
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db137867 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * unix.c: various unix type functions | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 2005 ircd-ratbox development team | |
7 | * Copyright (C) 2005 Aaron Sethman <androsyn@ratbox.org> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 | |
22 | * USA | |
23 | * | |
db137867 | 24 | */ |
c056dba2 | 25 | |
fe037171 EM |
26 | #include <librb_config.h> |
27 | #include <rb_lib.h> | |
3202e249 VY |
28 | #include <sys/wait.h> |
29 | ||
790e4dce AC |
30 | #ifdef HAVE_DLINFO |
31 | # include <link.h> | |
32 | # include <dlfcn.h> | |
33 | #endif | |
3202e249 VY |
34 | |
35 | #ifdef __APPLE__ | |
790e4dce | 36 | #include <mach-o/dyld.h> |
55abcbb2 | 37 | #include <crt_externs.h> |
3202e249 VY |
38 | #endif |
39 | ||
d71787ab AC |
40 | #if defined(__FreeBSD__) || defined(__DragonFly__) |
41 | #include <sys/types.h> | |
42 | #include <sys/sysctl.h> | |
43 | #endif | |
44 | ||
790e4dce AC |
45 | #if defined(HAVE_SPAWN_H) && defined(HAVE_POSIX_SPAWN) |
46 | #include <spawn.h> | |
47 | ||
3202e249 | 48 | #ifndef __APPLE__ |
db137867 | 49 | extern char **environ; |
3202e249 | 50 | #endif |
db137867 AC |
51 | pid_t |
52 | rb_spawn_process(const char *path, const char **argv) | |
53 | { | |
54 | pid_t pid; | |
55 | const void *arghack = argv; | |
3202e249 | 56 | char **myenviron; |
dcb22e07 | 57 | int error; |
db137867 AC |
58 | posix_spawnattr_t spattr; |
59 | posix_spawnattr_init(&spattr); | |
60 | #ifdef POSIX_SPAWN_USEVFORK | |
61 | posix_spawnattr_setflags(&spattr, POSIX_SPAWN_USEVFORK); | |
62 | #endif | |
3202e249 VY |
63 | #ifdef __APPLE__ |
64 | myenviron = *_NSGetEnviron(); /* apple needs to go fuck themselves for this */ | |
65 | #else | |
66 | myenviron = environ; | |
67 | #endif | |
dcb22e07 JT |
68 | error = posix_spawn(&pid, path, NULL, &spattr, arghack, myenviron); |
69 | posix_spawnattr_destroy(&spattr); | |
70 | if (error != 0) | |
db137867 | 71 | { |
dcb22e07 JT |
72 | errno = error; |
73 | pid = -1; | |
db137867 AC |
74 | } |
75 | return pid; | |
76 | } | |
77 | #else | |
78 | pid_t | |
79 | rb_spawn_process(const char *path, const char **argv) | |
80 | { | |
81 | pid_t pid; | |
82 | if(!(pid = vfork())) | |
83 | { | |
3202e249 VY |
84 | execv(path, (const void *)argv); /* make gcc shut up */ |
85 | _exit(1); /* if we're still here, we're screwed */ | |
db137867 | 86 | } |
3202e249 | 87 | return (pid); |
db137867 AC |
88 | } |
89 | #endif | |
90 | ||
91 | #ifndef HAVE_GETTIMEOFDAY | |
92 | int | |
93 | rb_gettimeofday(struct timeval *tv, void *tz) | |
94 | { | |
95 | if(tv == NULL) | |
96 | { | |
97 | errno = EFAULT; | |
98 | return -1; | |
99 | } | |
100 | tv->tv_usec = 0; | |
101 | if(time(&tv->tv_sec) == -1) | |
102 | return -1; | |
103 | return 0; | |
104 | } | |
105 | #else | |
106 | int | |
107 | rb_gettimeofday(struct timeval *tv, void *tz) | |
108 | { | |
3202e249 | 109 | return (gettimeofday(tv, tz)); |
db137867 AC |
110 | } |
111 | #endif | |
112 | ||
113 | void | |
114 | rb_sleep(unsigned int seconds, unsigned int useconds) | |
115 | { | |
116 | #ifdef HAVE_NANOSLEEP | |
117 | struct timespec tv; | |
118 | tv.tv_nsec = (useconds * 1000); | |
119 | tv.tv_sec = seconds; | |
120 | nanosleep(&tv, NULL); | |
3202e249 | 121 | #else |
db137867 AC |
122 | struct timeval tv; |
123 | tv.tv_sec = seconds; | |
124 | tv.tv_usec = useconds; | |
125 | select(0, NULL, NULL, NULL, &tv); | |
126 | #endif | |
127 | } | |
3202e249 VY |
128 | |
129 | /* this is to keep some linkers from bitching about exporting a non-existant symbol..bleh */ | |
130 | char * | |
131 | rb_strerror(int error) | |
132 | { | |
133 | return strerror(error); | |
134 | } | |
135 | ||
136 | int | |
137 | rb_kill(pid_t pid, int sig) | |
138 | { | |
139 | return kill(pid, sig); | |
140 | } | |
141 | ||
142 | int | |
143 | rb_setenv(const char *name, const char *value, int overwrite) | |
144 | { | |
145 | return setenv(name, value, overwrite); | |
146 | } | |
147 | ||
148 | pid_t | |
149 | rb_waitpid(pid_t pid, int *status, int options) | |
150 | { | |
151 | return waitpid(pid, status, options); | |
152 | } | |
153 | ||
154 | pid_t | |
155 | rb_getpid(void) | |
156 | { | |
157 | return getpid(); | |
158 | } | |
db137867 | 159 | |
790e4dce AC |
160 | const char * |
161 | rb_path_to_self(void) | |
162 | { | |
163 | static char path_buf[4096]; | |
164 | #if defined(HAVE_GETEXECNAME) | |
165 | char *s = getexecname(); | |
166 | if (s == NULL) | |
167 | return NULL; | |
168 | realpath(s, path_buf); | |
169 | return path_buf; | |
87f76327 | 170 | #elif defined(__linux__) || (defined(__FreeBSD__) && !defined(KERN_PROC_PATHNAME)) |
4b7abcfb | 171 | if (readlink("/proc/self/exe", path_buf, sizeof(path_buf)) != -1) |
d71787ab AC |
172 | return path_buf; |
173 | return NULL; | |
174 | #elif defined(__FreeBSD__) || defined(__DragonFly__) | |
4b7abcfb | 175 | size_t path_len = sizeof(path_buf); |
d71787ab AC |
176 | int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 }; |
177 | if (sysctl(mib, 4, path_buf, &path_len, NULL, 0) == 0) | |
87b20cbb AC |
178 | return path_buf; |
179 | return NULL; | |
790e4dce AC |
180 | #elif defined(HAVE_DLINFO) |
181 | struct link_map *map = NULL; | |
182 | dlinfo(RTLD_SELF, RTLD_DI_LINKMAP, &map); | |
183 | if (map == NULL) | |
184 | return NULL; | |
185 | realpath(map->l_name, path_buf); | |
a20190d5 | 186 | return path_buf; |
790e4dce AC |
187 | #elif defined(__APPLE__) |
188 | char tmp_path[4096]; | |
189 | uint32_t pathlen = 4096; | |
190 | ||
191 | if (_NSGetExecutablePath(tmp_path, &pathlen) < 0) | |
192 | return NULL; | |
193 | ||
194 | realpath(tmp_path, path_buf); | |
195 | return path_buf; | |
87f76327 SA |
196 | #else |
197 | return NULL; | |
790e4dce AC |
198 | #endif |
199 | } |