3 * Copyright (c) 1999-2004 Damien Miller <djm@mindrot.org>
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.
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.
20 #include <sys/types.h>
21 #ifdef HAVE_SYS_SELECT_H
22 # include <sys/select.h>
24 #ifdef HAVE_SYS_TIME_H
25 # include <sys/time.h>
35 #ifndef HAVE___PROGNAME
40 * NB. duplicate __progname in case it is an alias for argv[0]
41 * Otherwise it may get clobbered by setproctitle()
43 char *ssh_get_progname(char *argv0)
45 #ifdef HAVE___PROGNAME
46 extern char *__progname;
48 return xstrdup(__progname);
53 return ("unknown"); /* XXX */
54 p = strrchr(argv0, '/');
65 int setlogin(const char *name)
69 #endif /* !HAVE_SETLOGIN */
72 int innetgr(const char *netgroup, const char *host,
73 const char *user, const char *domain)
77 #endif /* HAVE_INNETGR */
79 #if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)
80 int seteuid(uid_t euid)
82 return (setreuid(-1, euid));
84 #endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */
86 #if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID)
87 int setegid(uid_t egid)
89 return(setresgid(-1, egid, -1));
91 #endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */
93 #if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR)
94 const char *strerror(int e)
97 extern char *sys_errlist[];
99 if ((e >= 0) && (e < sys_nerr))
100 return (sys_errlist[e]);
102 return ("unlisted error");
107 int utimes(char *filename, struct timeval *tvp)
111 ub.actime = tvp[0].tv_sec;
112 ub.modtime = tvp[1].tv_sec;
114 return (utime(filename, &ub));
118 #ifndef HAVE_TRUNCATE
119 int truncate(const char *path, off_t length)
121 int fd, ret, saverrno;
123 fd = open(path, O_WRONLY);
127 ret = ftruncate(fd, length);
135 #endif /* HAVE_TRUNCATE */
137 #if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP)
138 int nanosleep(const struct timespec *req, struct timespec *rem)
142 struct timeval tstart, tstop, tremain, time2wait;
144 TIMESPEC_TO_TIMEVAL(&time2wait, req)
145 (void) gettimeofday(&tstart, NULL);
146 rc = select(0, NULL, NULL, NULL, &time2wait);
149 (void) gettimeofday (&tstop, NULL);
151 tremain.tv_sec = time2wait.tv_sec -
152 (tstop.tv_sec - tstart.tv_sec);
153 tremain.tv_usec = time2wait.tv_usec -
154 (tstop.tv_usec - tstart.tv_usec);
155 tremain.tv_sec += tremain.tv_usec / 1000000L;
156 tremain.tv_usec %= 1000000L;
162 TIMEVAL_TO_TIMESPEC(&tremain, rem)
168 #if !defined(HAVE_USLEEP)
169 int usleep(unsigned int useconds)
173 ts.tv_sec = useconds / 1000000;
174 ts.tv_nsec = (useconds % 1000000) * 1000;
175 return nanosleep(&ts, NULL);
179 #ifndef HAVE_TCGETPGRP
185 if (ioctl(fd, TIOCGPGRP, &ctty_pgrp) == -1)
190 #endif /* HAVE_TCGETPGRP */
192 #ifndef HAVE_TCSENDBREAK
194 tcsendbreak(int fd, int duration)
196 # if defined(TIOCSBRK) && defined(TIOCCBRK)
197 struct timeval sleepytime;
199 sleepytime.tv_sec = 0;
200 sleepytime.tv_usec = 400000;
201 if (ioctl(fd, TIOCSBRK, 0) == -1)
203 (void)select(0, 0, 0, 0, &sleepytime);
204 if (ioctl(fd, TIOCCBRK, 0) == -1)
211 #endif /* HAVE_TCSENDBREAK */
214 mysignal(int sig, mysig_t act)
216 #ifdef HAVE_SIGACTION
217 struct sigaction sa, osa;
219 if (sigaction(sig, NULL, &osa) == -1)
221 if (osa.sa_handler != act) {
222 memset(&sa, 0, sizeof(sa));
223 sigemptyset(&sa.sa_mask);
227 sa.sa_flags |= SA_INTERRUPT;
230 if (sigaction(sig, &sa, NULL) == -1)
233 return (osa.sa_handler);
236 return (signal(sig, act));
242 strdup(const char *str)
247 len = strlen(str) + 1;
250 return(memcpy(cp, str, len));
259 return (c == ' ' || c == '\t');
267 #if defined(HAVE_GETPGRP) && !defined(GETPGRP_VOID)
269 #elif defined(HAVE_GETPGRP)