2 * Copyright (c) 1999-2003 Damien Miller. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 * NB. duplicate __progname in case it is an alias for argv[0]
32 * Otherwise it may get clobbered by setproctitle()
34 char *ssh_get_progname(char *argv0)
36 #ifdef HAVE___PROGNAME
37 extern char *__progname;
39 return xstrdup(__progname);
44 return ("unknown"); /* XXX */
45 p = strrchr(argv0, '/');
56 int setlogin(const char *name)
60 #endif /* !HAVE_SETLOGIN */
63 int innetgr(const char *netgroup, const char *host,
64 const char *user, const char *domain)
68 #endif /* HAVE_INNETGR */
70 #if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)
71 int seteuid(uid_t euid)
73 return (setreuid(-1, euid));
75 #endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */
77 #if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID)
78 int setegid(uid_t egid)
80 return(setresgid(-1, egid, -1));
82 #endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */
84 #if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR)
85 const char *strerror(int e)
88 extern char *sys_errlist[];
90 if ((e >= 0) && (e < sys_nerr))
91 return (sys_errlist[e]);
93 return ("unlisted error");
98 int utimes(char *filename, struct timeval *tvp)
102 ub.actime = tvp[0].tv_sec;
103 ub.modtime = tvp[1].tv_sec;
105 return (utime(filename, &ub));
109 #ifndef HAVE_TRUNCATE
110 int truncate(const char *path, off_t length)
112 int fd, ret, saverrno;
114 fd = open(path, O_WRONLY);
118 ret = ftruncate(fd, length);
126 #endif /* HAVE_TRUNCATE */
128 #if !defined(HAVE_SETGROUPS) && defined(SETGROUPS_NOOP)
130 * Cygwin setgroups should be a noop.
133 setgroups(size_t size, const gid_t *list)
139 #if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP)
140 int nanosleep(const struct timespec *req, struct timespec *rem)
144 struct timeval tstart, tstop, tremain, time2wait;
146 TIMESPEC_TO_TIMEVAL(&time2wait, req)
147 (void) gettimeofday(&tstart, NULL);
148 rc = select(0, NULL, NULL, NULL, &time2wait);
151 (void) gettimeofday (&tstop, NULL);
153 tremain.tv_sec = time2wait.tv_sec -
154 (tstop.tv_sec - tstart.tv_sec);
155 tremain.tv_usec = time2wait.tv_usec -
156 (tstop.tv_usec - tstart.tv_usec);
157 tremain.tv_sec += tremain.tv_usec / 1000000L;
158 tremain.tv_usec %= 1000000L;
163 TIMEVAL_TO_TIMESPEC(&tremain, rem)
170 #ifndef HAVE_TCGETPGRP
176 if (ioctl(fd, TIOCGPGRP, &ctty_pgrp) == -1)
181 #endif /* HAVE_TCGETPGRP */
183 #ifndef HAVE_TCSENDBREAK
185 tcsendbreak(int fd, int duration)
187 # if defined(TIOCSBRK) && defined(TIOCCBRK)
188 struct timeval sleepytime;
190 sleepytime.tv_sec = 0;
191 sleepytime.tv_usec = 400000;
192 if (ioctl(fd, TIOCSBRK, 0) == -1)
194 (void)select(0, 0, 0, 0, &sleepytime);
195 if (ioctl(fd, TIOCCBRK, 0) == -1)
202 #endif /* HAVE_TCSENDBREAK */
205 mysignal(int sig, mysig_t act)
207 #ifdef HAVE_SIGACTION
208 struct sigaction sa, osa;
210 if (sigaction(sig, NULL, &osa) == -1)
212 if (osa.sa_handler != act) {
213 memset(&sa, 0, sizeof(sa));
214 sigemptyset(&sa.sa_mask);
218 sa.sa_flags |= SA_INTERRUPT;
221 if (sigaction(sig, &sa, NULL) == -1)
224 return (osa.sa_handler);
226 return (signal(sig, act));