diff options
Diffstat (limited to 'openbsd-compat/bsd-misc.c')
| -rw-r--r-- | openbsd-compat/bsd-misc.c | 232 |
1 files changed, 197 insertions, 35 deletions
diff --git a/openbsd-compat/bsd-misc.c b/openbsd-compat/bsd-misc.c index f7be415e..059b6d3b 100644 --- a/openbsd-compat/bsd-misc.c +++ b/openbsd-compat/bsd-misc.c @@ -25,9 +25,11 @@ # include <sys/time.h> #endif +#include <fcntl.h> #include <string.h> #include <signal.h> #include <stdlib.h> +#include <stdio.h> #include <time.h> #include <unistd.h> @@ -70,8 +72,8 @@ int setlogin(const char *name) #endif /* !HAVE_SETLOGIN */ #ifndef HAVE_INNETGR -int innetgr(const char *netgroup, const char *host, - const char *user, const char *domain) +int innetgr(const char *netgroup, const char *host, + const char *user, const char *domain) { return (0); } @@ -96,7 +98,7 @@ const char *strerror(int e) { extern int sys_nerr; extern char *sys_errlist[]; - + if ((e >= 0) && (e < sys_nerr)) return (sys_errlist[e]); @@ -111,10 +113,112 @@ int utimes(char *filename, struct timeval *tvp) ub.actime = tvp[0].tv_sec; ub.modtime = tvp[1].tv_sec; - + return (utime(filename, &ub)); } -#endif +#endif + +#ifndef HAVE_UTIMENSAT +/* + * A limited implementation of utimensat() that only implements the + * functionality used by OpenSSH, currently only AT_FDCWD and + * AT_SYMLINK_NOFOLLOW. + */ +int +utimensat(int fd, const char *path, const struct timespec times[2], + int flag) +{ + struct timeval tv[2]; +# ifdef HAVE_FUTIMES + int ret, oflags = O_WRONLY; +# endif + + tv[0].tv_sec = times[0].tv_sec; + tv[0].tv_usec = times[0].tv_nsec / 1000; + tv[1].tv_sec = times[1].tv_sec; + tv[1].tv_usec = times[1].tv_nsec / 1000; + + if (fd != AT_FDCWD) { + errno = ENOSYS; + return -1; + } +# ifndef HAVE_FUTIMES + return utimes(path, tv); +# else +# ifdef O_NOFOLLOW + if (flag & AT_SYMLINK_NOFOLLOW) + oflags |= O_NOFOLLOW; +# endif /* O_NOFOLLOW */ + if ((fd = open(path, oflags)) == -1) + return -1; + ret = futimes(fd, tv); + close(fd); + return ret; +# endif +} +#endif + +#ifndef HAVE_FCHOWNAT +/* + * A limited implementation of fchownat() that only implements the + * functionality used by OpenSSH, currently only AT_FDCWD and + * AT_SYMLINK_NOFOLLOW. + */ +int +fchownat(int fd, const char *path, uid_t owner, gid_t group, int flag) +{ + int ret, oflags = O_WRONLY; + + if (fd != AT_FDCWD) { + errno = ENOSYS; + return -1; + } +# ifndef HAVE_FCHOWN + return chown(path, owner, group); +# else +# ifdef O_NOFOLLOW + if (flag & AT_SYMLINK_NOFOLLOW) + oflags |= O_NOFOLLOW; +# endif /* O_NOFOLLOW */ + if ((fd = open(path, oflags)) == -1) + return -1; + ret = fchown(fd, owner, group); + close(fd); + return ret; +# endif +} +#endif + +#ifndef HAVE_FCHMODAT +/* + * A limited implementation of fchmodat() that only implements the + * functionality used by OpenSSH, currently only AT_FDCWD and + * AT_SYMLINK_NOFOLLOW. + */ +int +fchmodat(int fd, const char *path, mode_t mode, int flag) +{ + int ret, oflags = O_WRONLY; + + if (fd != AT_FDCWD) { + errno = ENOSYS; + return -1; + } +# ifndef HAVE_FCHMOD + return chmod(path, mode); +# else +# ifdef O_NOFOLLOW + if (flag & AT_SYMLINK_NOFOLLOW) + oflags |= O_NOFOLLOW; +# endif /* O_NOFOLLOW */ + if ((fd = open(path, oflags)) == -1) + return -1; + ret = fchmod(fd, mode); + close(fd); + return ret; +# endif +} +#endif #ifndef HAVE_TRUNCATE int truncate(const char *path, off_t length) @@ -149,9 +253,9 @@ int nanosleep(const struct timespec *req, struct timespec *rem) saverrno = errno; (void) gettimeofday (&tstop, NULL); errno = saverrno; - tremain.tv_sec = time2wait.tv_sec - + tremain.tv_sec = time2wait.tv_sec - (tstop.tv_sec - tstart.tv_sec); - tremain.tv_usec = time2wait.tv_usec - + tremain.tv_usec = time2wait.tv_usec - (tstop.tv_usec - tstart.tv_usec); tremain.tv_sec += tremain.tv_usec / 1000000L; tremain.tv_usec %= 1000000L; @@ -211,33 +315,6 @@ tcsendbreak(int fd, int duration) } #endif /* HAVE_TCSENDBREAK */ -mysig_t -mysignal(int sig, mysig_t act) -{ -#ifdef HAVE_SIGACTION - struct sigaction sa, osa; - - if (sigaction(sig, NULL, &osa) == -1) - return (mysig_t) -1; - if (osa.sa_handler != act) { - memset(&sa, 0, sizeof(sa)); - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; -#ifdef SA_INTERRUPT - if (sig == SIGALRM) - sa.sa_flags |= SA_INTERRUPT; -#endif - sa.sa_handler = act; - if (sigaction(sig, &sa, NULL) == -1) - return (mysig_t) -1; - } - return (osa.sa_handler); -#else - #undef signal - return (signal(sig, act)); -#endif -} - #ifndef HAVE_STRDUP char * strdup(const char *str) @@ -265,7 +342,7 @@ isblank(int c) pid_t getpgid(pid_t pid) { -#if defined(HAVE_GETPGRP) && !defined(GETPGRP_VOID) +#if defined(HAVE_GETPGRP) && !defined(GETPGRP_VOID) && GETPGRP_VOID == 0 return getpgrp(pid); #elif defined(HAVE_GETPGRP) if (pid == 0) @@ -276,3 +353,88 @@ getpgid(pid_t pid) return -1; } #endif + +#ifndef HAVE_PLEDGE +int +pledge(const char *promises, const char *paths[]) +{ + return 0; +} +#endif + +#ifndef HAVE_MBTOWC +/* a mbtowc that only supports ASCII */ +int +mbtowc(wchar_t *pwc, const char *s, size_t n) +{ + if (s == NULL || *s == '\0') + return 0; /* ASCII is not state-dependent */ + if (*s < 0 || *s > 0x7f || n < 1) { + errno = EOPNOTSUPP; + return -1; + } + if (pwc != NULL) + *pwc = *s; + return 1; +} +#endif + +#ifndef HAVE_LLABS +long long +llabs(long long j) +{ + return (j < 0 ? -j : j); +} +#endif + +#ifndef HAVE_BZERO +void +bzero(void *b, size_t n) +{ + (void)memset(b, 0, n); +} +#endif + +#ifndef HAVE_RAISE +int +raise(int sig) +{ + kill(getpid(), sig); +} +#endif + +#ifndef HAVE_GETSID +pid_t +getsid(pid_t pid) +{ + errno = ENOSYS; + return -1; +} +#endif + +#ifdef FFLUSH_NULL_BUG +#undef fflush +int _ssh_compat_fflush(FILE *f) +{ + int r1, r2; + + if (f == NULL) { + r1 = fflush(stdout); + r2 = fflush(stderr); + if (r1 == -1 || r2 == -1) + return -1; + return 0; + } + return fflush(f); +} +#endif + +#ifndef HAVE_LOCALTIME_R +struct tm * +localtime_r(const time_t *timep, struct tm *result) +{ + struct tm *tm = localtime(timep); + *result = *tm; + return result; +} +#endif |