diff options
Diffstat (limited to 'crypto/openssh/misc.c')
| -rw-r--r-- | crypto/openssh/misc.c | 91 |
1 files changed, 85 insertions, 6 deletions
diff --git a/crypto/openssh/misc.c b/crypto/openssh/misc.c index e4c8c32..ddd2b2d 100644 --- a/crypto/openssh/misc.c +++ b/crypto/openssh/misc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: misc.c,v 1.92 2013/10/14 23:28:23 djm Exp $ */ +/* $OpenBSD: misc.c,v 1.97 2015/04/24 01:36:00 deraadt Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * Copyright (c) 2005,2006 Damien Miller. All rights reserved. @@ -29,8 +29,9 @@ #include <sys/types.h> #include <sys/ioctl.h> #include <sys/socket.h> -#include <sys/param.h> +#include <sys/un.h> +#include <limits.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> @@ -471,7 +472,7 @@ addargs(arglist *args, char *fmt, ...) } else if (args->num+2 >= nalloc) nalloc *= 2; - args->list = xrealloc(args->list, nalloc, sizeof(char *)); + args->list = xreallocarray(args->list, nalloc, sizeof(char *)); args->nalloc = nalloc; args->list[args->num++] = cp; args->list[args->num] = NULL; @@ -550,7 +551,7 @@ tilde_expand_filename(const char *filename, uid_t uid) if (path != NULL) filename = path + 1; - if (xasprintf(&ret, "%s%s%s", pw->pw_dir, sep, filename) >= MAXPATHLEN) + if (xasprintf(&ret, "%s%s%s", pw->pw_dir, sep, filename) >= PATH_MAX) fatal("tilde_expand_filename: Path too long"); return (ret); @@ -788,6 +789,20 @@ get_u32(const void *vp) return (v); } +u_int32_t +get_u32_le(const void *vp) +{ + const u_char *p = (const u_char *)vp; + u_int32_t v; + + v = (u_int32_t)p[0]; + v |= (u_int32_t)p[1] << 8; + v |= (u_int32_t)p[2] << 16; + v |= (u_int32_t)p[3] << 24; + + return (v); +} + u_int16_t get_u16(const void *vp) { @@ -826,6 +841,16 @@ put_u32(void *vp, u_int32_t v) p[3] = (u_char)v & 0xff; } +void +put_u32_le(void *vp, u_int32_t v) +{ + u_char *p = (u_char *)vp; + + p[0] = (u_char)v & 0xff; + p[1] = (u_char)(v >> 8) & 0xff; + p[2] = (u_char)(v >> 16) & 0xff; + p[3] = (u_char)(v >> 24) & 0xff; +} void put_u16(void *vp, u_int16_t v) @@ -858,17 +883,24 @@ ms_to_timeval(struct timeval *tv, int ms) time_t monotime(void) { -#if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) +#if defined(HAVE_CLOCK_GETTIME) && \ + (defined(CLOCK_MONOTONIC) || defined(CLOCK_BOOTTIME)) struct timespec ts; static int gettime_failed = 0; if (!gettime_failed) { +#if defined(CLOCK_BOOTTIME) + if (clock_gettime(CLOCK_BOOTTIME, &ts) == 0) + return (ts.tv_sec); +#endif +#if defined(CLOCK_MONOTONIC) if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) return (ts.tv_sec); +#endif debug3("clock_gettime: %s", strerror(errno)); gettime_failed = 1; } -#endif +#endif /* HAVE_CLOCK_GETTIME && (CLOCK_MONOTONIC || CLOCK_BOOTTIME */ return time(NULL); } @@ -1025,6 +1057,53 @@ lowercase(char *s) for (; *s; s++) *s = tolower((u_char)*s); } + +int +unix_listener(const char *path, int backlog, int unlink_first) +{ + struct sockaddr_un sunaddr; + int saved_errno, sock; + + memset(&sunaddr, 0, sizeof(sunaddr)); + sunaddr.sun_family = AF_UNIX; + if (strlcpy(sunaddr.sun_path, path, sizeof(sunaddr.sun_path)) >= sizeof(sunaddr.sun_path)) { + error("%s: \"%s\" too long for Unix domain socket", __func__, + path); + errno = ENAMETOOLONG; + return -1; + } + + sock = socket(PF_UNIX, SOCK_STREAM, 0); + if (sock < 0) { + saved_errno = errno; + error("socket: %.100s", strerror(errno)); + errno = saved_errno; + return -1; + } + if (unlink_first == 1) { + if (unlink(path) != 0 && errno != ENOENT) + error("unlink(%s): %.100s", path, strerror(errno)); + } + if (bind(sock, (struct sockaddr *)&sunaddr, sizeof(sunaddr)) < 0) { + saved_errno = errno; + error("bind: %.100s", strerror(errno)); + close(sock); + error("%s: cannot bind to path: %s", __func__, path); + errno = saved_errno; + return -1; + } + if (listen(sock, backlog) < 0) { + saved_errno = errno; + error("listen: %.100s", strerror(errno)); + close(sock); + unlink(path); + error("%s: cannot listen on path: %s", __func__, path); + errno = saved_errno; + return -1; + } + return sock; +} + void sock_set_v6only(int s) { |
