diff options
Diffstat (limited to 'other/openssh-2.1.1p4/bsd-rresvport.c')
| -rw-r--r-- | other/openssh-2.1.1p4/bsd-rresvport.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/other/openssh-2.1.1p4/bsd-rresvport.c b/other/openssh-2.1.1p4/bsd-rresvport.c new file mode 100644 index 0000000..cda4c36 --- /dev/null +++ b/other/openssh-2.1.1p4/bsd-rresvport.c | |||
| @@ -0,0 +1,105 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1995, 1996, 1998 Theo de Raadt. All rights reserved. | ||
| 3 | * Copyright (c) 1983, 1993, 1994 | ||
| 4 | * The Regents of the University of California. All rights reserved. | ||
| 5 | * | ||
| 6 | * Redistribution and use in source and binary forms, with or without | ||
| 7 | * modification, are permitted provided that the following conditions | ||
| 8 | * are met: | ||
| 9 | * 1. Redistributions of source code must retain the above copyright | ||
| 10 | * notice, this list of conditions and the following disclaimer. | ||
| 11 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 12 | * notice, this list of conditions and the following disclaimer in the | ||
| 13 | * documentation and/or other materials provided with the distribution. | ||
| 14 | * 3. All advertising materials mentioning features or use of this software | ||
| 15 | * must display the following acknowledgement: | ||
| 16 | * This product includes software developed by the University of | ||
| 17 | * California, Berkeley and its contributors. | ||
| 18 | * This product includes software developed by Theo de Raadt. | ||
| 19 | * 4. Neither the name of the University nor the names of its contributors | ||
| 20 | * may be used to endorse or promote products derived from this software | ||
| 21 | * without specific prior written permission. | ||
| 22 | * | ||
| 23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
| 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 33 | * SUCH DAMAGE. | ||
| 34 | */ | ||
| 35 | |||
| 36 | #include "config.h" | ||
| 37 | |||
| 38 | #ifndef HAVE_RRESVPORT_AF | ||
| 39 | |||
| 40 | #if defined(LIBC_SCCS) && !defined(lint) | ||
| 41 | static char *rcsid = "$OpenBSD: rresvport.c,v 1.4 1999/12/17 20:48:03 deraadt Exp $"; | ||
| 42 | #endif /* LIBC_SCCS and not lint */ | ||
| 43 | |||
| 44 | #include "includes.h" | ||
| 45 | |||
| 46 | #if 0 | ||
| 47 | int | ||
| 48 | rresvport(alport) | ||
| 49 | int *alport; | ||
| 50 | { | ||
| 51 | return rresvport_af(alport, AF_INET); | ||
| 52 | } | ||
| 53 | #endif | ||
| 54 | |||
| 55 | int | ||
| 56 | rresvport_af(int *alport, sa_family_t af) | ||
| 57 | { | ||
| 58 | struct sockaddr_storage ss; | ||
| 59 | struct sockaddr *sa; | ||
| 60 | u_int16_t *portp; | ||
| 61 | int s; | ||
| 62 | int salen; | ||
| 63 | |||
| 64 | bzero(&ss, sizeof ss); | ||
| 65 | sa = (struct sockaddr *)&ss; | ||
| 66 | |||
| 67 | switch (af) { | ||
| 68 | case AF_INET: | ||
| 69 | salen = sizeof(struct sockaddr_in); | ||
| 70 | portp = &((struct sockaddr_in *)sa)->sin_port; | ||
| 71 | break; | ||
| 72 | case AF_INET6: | ||
| 73 | salen = sizeof(struct sockaddr_in6); | ||
| 74 | portp = &((struct sockaddr_in6 *)sa)->sin6_port; | ||
| 75 | break; | ||
| 76 | default: | ||
| 77 | errno = EPFNOSUPPORT; | ||
| 78 | return (-1); | ||
| 79 | } | ||
| 80 | sa->sa_family = af; | ||
| 81 | |||
| 82 | s = socket(af, SOCK_STREAM, 0); | ||
| 83 | if (s < 0) | ||
| 84 | return (-1); | ||
| 85 | |||
| 86 | *portp = htons(*alport); | ||
| 87 | if (*alport < IPPORT_RESERVED - 1) { | ||
| 88 | if (bind(s, sa, salen) >= 0) | ||
| 89 | return (s); | ||
| 90 | if (errno != EADDRINUSE) { | ||
| 91 | (void)close(s); | ||
| 92 | return (-1); | ||
| 93 | } | ||
| 94 | } | ||
| 95 | |||
| 96 | *portp = 0; | ||
| 97 | if (bindresvport_af(s, sa, af) == -1) { | ||
| 98 | (void)close(s); | ||
| 99 | return (-1); | ||
| 100 | } | ||
| 101 | *alport = ntohs(*portp); | ||
| 102 | return (s); | ||
| 103 | } | ||
| 104 | |||
| 105 | #endif /* HAVE_RRESVPORT_AF */ | ||
