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Commit | Line | Data |
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1b56ff3d | 1 | |
3c0ef626 | 2 | /* |
416fd2a8 | 3 | * Copyright (c) 1999-2004 Damien Miller <djm@mindrot.org> |
3c0ef626 | 4 | * |
416fd2a8 | 5 | * Permission to use, copy, modify, and distribute this software for any |
6 | * purpose with or without fee is hereby granted, provided that the above | |
7 | * copyright notice and this permission notice appear in all copies. | |
3c0ef626 | 8 | * |
416fd2a8 | 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
3c0ef626 | 16 | */ |
17 | ||
18 | #include "includes.h" | |
1c14df9e | 19 | #include "xmalloc.h" |
3c0ef626 | 20 | |
21 | RCSID("$Id$"); | |
22 | ||
1b56ff3d | 23 | #ifndef HAVE___PROGNAME |
24 | char *__progname; | |
25 | #endif | |
26 | ||
1c14df9e | 27 | /* |
28 | * NB. duplicate __progname in case it is an alias for argv[0] | |
29 | * Otherwise it may get clobbered by setproctitle() | |
30 | */ | |
70791e56 | 31 | char *ssh_get_progname(char *argv0) |
3c0ef626 | 32 | { |
33 | #ifdef HAVE___PROGNAME | |
34 | extern char *__progname; | |
35 | ||
1c14df9e | 36 | return xstrdup(__progname); |
3c0ef626 | 37 | #else |
38 | char *p; | |
39 | ||
40 | if (argv0 == NULL) | |
70791e56 | 41 | return ("unknown"); /* XXX */ |
3c0ef626 | 42 | p = strrchr(argv0, '/'); |
43 | if (p == NULL) | |
44 | p = argv0; | |
45 | else | |
46 | p++; | |
1c14df9e | 47 | |
70791e56 | 48 | return (xstrdup(p)); |
3c0ef626 | 49 | #endif |
50 | } | |
51 | ||
52 | #ifndef HAVE_SETLOGIN | |
53 | int setlogin(const char *name) | |
54 | { | |
70791e56 | 55 | return (0); |
3c0ef626 | 56 | } |
57 | #endif /* !HAVE_SETLOGIN */ | |
58 | ||
59 | #ifndef HAVE_INNETGR | |
60 | int innetgr(const char *netgroup, const char *host, | |
61 | const char *user, const char *domain) | |
62 | { | |
70791e56 | 63 | return (0); |
3c0ef626 | 64 | } |
65 | #endif /* HAVE_INNETGR */ | |
66 | ||
67 | #if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) | |
68 | int seteuid(uid_t euid) | |
69 | { | |
70791e56 | 70 | return (setreuid(-1, euid)); |
3c0ef626 | 71 | } |
72 | #endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */ | |
73 | ||
74 | #if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) | |
75 | int setegid(uid_t egid) | |
76 | { | |
70791e56 | 77 | return(setresgid(-1, egid, -1)); |
3c0ef626 | 78 | } |
79 | #endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */ | |
80 | ||
81 | #if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR) | |
82 | const char *strerror(int e) | |
83 | { | |
84 | extern int sys_nerr; | |
85 | extern char *sys_errlist[]; | |
86 | ||
87 | if ((e >= 0) && (e < sys_nerr)) | |
70791e56 | 88 | return (sys_errlist[e]); |
89 | ||
90 | return ("unlisted error"); | |
3c0ef626 | 91 | } |
92 | #endif | |
93 | ||
94 | #ifndef HAVE_UTIMES | |
95 | int utimes(char *filename, struct timeval *tvp) | |
96 | { | |
97 | struct utimbuf ub; | |
98 | ||
e54b3d7c | 99 | ub.actime = tvp[0].tv_sec; |
100 | ub.modtime = tvp[1].tv_sec; | |
3c0ef626 | 101 | |
70791e56 | 102 | return (utime(filename, &ub)); |
3c0ef626 | 103 | } |
104 | #endif | |
2980ea68 | 105 | |
106 | #ifndef HAVE_TRUNCATE | |
70791e56 | 107 | int truncate(const char *path, off_t length) |
2980ea68 | 108 | { |
109 | int fd, ret, saverrno; | |
110 | ||
111 | fd = open(path, O_WRONLY); | |
112 | if (fd < 0) | |
70791e56 | 113 | return (-1); |
2980ea68 | 114 | |
115 | ret = ftruncate(fd, length); | |
116 | saverrno = errno; | |
70791e56 | 117 | close(fd); |
2980ea68 | 118 | if (ret == -1) |
119 | errno = saverrno; | |
70791e56 | 120 | |
2980ea68 | 121 | return(ret); |
122 | } | |
123 | #endif /* HAVE_TRUNCATE */ | |
124 | ||
ff2d7a98 | 125 | #if !defined(HAVE_SETGROUPS) && defined(SETGROUPS_NOOP) |
126 | /* | |
127 | * Cygwin setgroups should be a noop. | |
128 | */ | |
129 | int | |
130 | setgroups(size_t size, const gid_t *list) | |
131 | { | |
70791e56 | 132 | return (0); |
ff2d7a98 | 133 | } |
134 | #endif | |
135 | ||
1c14df9e | 136 | #if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP) |
137 | int nanosleep(const struct timespec *req, struct timespec *rem) | |
138 | { | |
139 | int rc, saverrno; | |
140 | extern int errno; | |
141 | struct timeval tstart, tstop, tremain, time2wait; | |
142 | ||
143 | TIMESPEC_TO_TIMEVAL(&time2wait, req) | |
144 | (void) gettimeofday(&tstart, NULL); | |
145 | rc = select(0, NULL, NULL, NULL, &time2wait); | |
146 | if (rc == -1) { | |
147 | saverrno = errno; | |
148 | (void) gettimeofday (&tstop, NULL); | |
149 | errno = saverrno; | |
150 | tremain.tv_sec = time2wait.tv_sec - | |
151 | (tstop.tv_sec - tstart.tv_sec); | |
152 | tremain.tv_usec = time2wait.tv_usec - | |
153 | (tstop.tv_usec - tstart.tv_usec); | |
154 | tremain.tv_sec += tremain.tv_usec / 1000000L; | |
155 | tremain.tv_usec %= 1000000L; | |
156 | } else { | |
157 | tremain.tv_sec = 0; | |
158 | tremain.tv_usec = 0; | |
159 | } | |
160 | TIMEVAL_TO_TIMESPEC(&tremain, rem) | |
161 | ||
162 | return(rc); | |
163 | } | |
1c14df9e | 164 | #endif |
165 | ||
70791e56 | 166 | #ifndef HAVE_TCGETPGRP |
167 | pid_t | |
168 | tcgetpgrp(int fd) | |
169 | { | |
170 | int ctty_pgrp; | |
171 | ||
172 | if (ioctl(fd, TIOCGPGRP, &ctty_pgrp) == -1) | |
173 | return(-1); | |
174 | else | |
175 | return(ctty_pgrp); | |
176 | } | |
177 | #endif /* HAVE_TCGETPGRP */ | |
178 | ||
179 | #ifndef HAVE_TCSENDBREAK | |
180 | int | |
181 | tcsendbreak(int fd, int duration) | |
182 | { | |
183 | # if defined(TIOCSBRK) && defined(TIOCCBRK) | |
184 | struct timeval sleepytime; | |
185 | ||
186 | sleepytime.tv_sec = 0; | |
187 | sleepytime.tv_usec = 400000; | |
188 | if (ioctl(fd, TIOCSBRK, 0) == -1) | |
189 | return (-1); | |
190 | (void)select(0, 0, 0, 0, &sleepytime); | |
191 | if (ioctl(fd, TIOCCBRK, 0) == -1) | |
192 | return (-1); | |
193 | return (0); | |
194 | # else | |
195 | return -1; | |
196 | # endif | |
197 | } | |
198 | #endif /* HAVE_TCSENDBREAK */ | |
199 | ||
200 | mysig_t | |
201 | mysignal(int sig, mysig_t act) | |
202 | { | |
203 | #ifdef HAVE_SIGACTION | |
204 | struct sigaction sa, osa; | |
205 | ||
206 | if (sigaction(sig, NULL, &osa) == -1) | |
207 | return (mysig_t) -1; | |
208 | if (osa.sa_handler != act) { | |
209 | memset(&sa, 0, sizeof(sa)); | |
210 | sigemptyset(&sa.sa_mask); | |
211 | sa.sa_flags = 0; | |
212 | #ifdef SA_INTERRUPT | |
213 | if (sig == SIGALRM) | |
214 | sa.sa_flags |= SA_INTERRUPT; | |
215 | #endif | |
216 | sa.sa_handler = act; | |
217 | if (sigaction(sig, &sa, NULL) == -1) | |
218 | return (mysig_t) -1; | |
219 | } | |
220 | return (osa.sa_handler); | |
221 | #else | |
416fd2a8 | 222 | #undef signal |
70791e56 | 223 | return (signal(sig, act)); |
224 | #endif | |
225 | } |