| /* |
| * This file is part of the UCB release of Plan 9. It is subject to the license |
| * terms in the LICENSE file found in the top-level directory of this |
| * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No |
| * part of the UCB release of Plan 9, including this file, may be copied, |
| * modified, propagated, or distributed except according to the terms contained |
| * in the LICENSE file. |
| */ |
| /* posix */ |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <signal.h> |
| |
| /* socket extensions */ |
| #include <sys/uio.h> |
| #include <sys/socket.h> |
| #include <netinet/in.h> |
| #include <sys/un.h> |
| |
| #include <sys/plan9_helpers.h> |
| |
| /* Give the socket FD the local address ADDR (which is LEN bytes long). */ |
| int __bind(int fd, __CONST_SOCKADDR_ARG addr, socklen_t alen) |
| { |
| int n; |
| socklen_t len; |
| Rock *r; |
| char msg[128]; |
| struct sockaddr_in *lip; |
| |
| /* assign the address */ |
| r = _sock_findrock(fd, 0); |
| if (r == 0) { |
| errno = ENOTSOCK; |
| return -1; |
| } |
| if (alen > sizeof(r->addr_stor)) { |
| errno = ENAMETOOLONG; |
| return -1; |
| } |
| memmove(&r->addr, addr.__sockaddr__, alen); |
| |
| /* the rest is IP sepecific */ |
| if (r->domain != PF_INET) |
| return 0; |
| |
| lip = (struct sockaddr_in *)&r->addr; |
| if (lip->sin_port > 0) |
| snprintf(msg, sizeof msg, "bind %d", ntohs(lip->sin_port)); |
| else |
| strcpy(msg, "bind *"); |
| n = write(r->ctl_fd, msg, strlen(msg)); |
| if (n < 0) { |
| errno = EOPNOTSUPP; /* Improve error reporting!!! */ |
| return -1; |
| } |
| if (lip->sin_port <= 0) |
| _sock_ingetaddr(r, lip, &len, "local"); |
| /* UDP sockets are in headers mode, and need to be announced. This |
| * isn't a full announce, in that the kernel UDP stack doesn't expect |
| * someone to open the listen file or anything like that. */ |
| if ((r->domain == PF_INET) && (r->stype == SOCK_DGRAM)) { |
| n = snprintf(msg, sizeof(msg), "announce *!%d", |
| ntohs(lip->sin_port)); |
| n = write(r->ctl_fd, msg, n); |
| if (n < 0) { |
| perror("bind-announce failed"); |
| return -1; |
| } |
| } |
| return 0; |
| } |
| weak_alias(__bind, bind) |
