ref: 89cd4a0e67376d69d42a17bc3135ac9206c4e332
dir: /sys/src/ape/lib/bsd/bind.c/
/* 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> /* plan 9 */ #include "lib.h" #include "sys9.h" #include "priv.h" int bind(int fd, void *a, int alen) { int n, len, cfd; struct sockaddr *sa; Rock *r; char msg[128]; /* assign the address */ r = _sock_findrock(fd, 0); if(r == 0){ errno = ENOTSOCK; return -1; } sa = (struct sockaddr*)a; if(sa->sa_family != r->domain){ errno = EAFNOSUPPORT; return -1; } if(alen > sizeof(r->addr)){ errno = ENAMETOOLONG; return -1; } memmove(&r->addr, a, alen); /* the rest is IP sepecific */ if (r->domain != PF_INET && r->domain != PF_INET6) return 0; cfd = open(r->ctl, O_RDWR); if(cfd < 0){ errno = EBADF; return -1; } strcpy(msg, "bind "); _sock_inaddr2string(r, msg + 5, sizeof msg - 5); n = write(cfd, msg, strlen(msg)); if(n < 0){ _syserrno(); if(errno == EPLAN9) errno = EOPNOTSUPP; close(cfd); return -1; } close(cfd); if(_sock_inport(&r->addr) == 0) _sock_ingetaddr(r, &r->addr, 0, "local"); return 0; }