#include #include #include #include #include #include "u.h" #include "lib.h" #include "dat.h" #include "fns.h" #include "error.h" #include "devip.h" #undef listen #undef accept #undef bind void osipinit(void) { char buf[1024]; gethostname(buf, sizeof(buf)); kstrdup(&sysname, buf); } int so_socket(int type) { int fd, one; switch(type) { default: error("bad protocol type"); case S_TCP: type = SOCK_STREAM; break; case S_UDP: type = SOCK_DGRAM; break; } fd = socket(AF_INET, type, 0); if(fd < 0) oserror(); one = 1; if(setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char*)&one, sizeof(one)) > 0){ oserrstr(); print("setsockopt: %r"); } return fd; } void so_connect(int fd, unsigned long raddr, unsigned short rport) { struct sockaddr_in sin; memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; hnputs(&sin.sin_port, rport); hnputl(&sin.sin_addr.s_addr, raddr); if(connect(fd, (struct sockaddr*)&sin, sizeof(sin)) < 0) oserror(); } void so_getsockname(int fd, unsigned long *laddr, unsigned short *lport) { int len; struct sockaddr_in sin; len = sizeof(sin); if(getsockname(fd, (struct sockaddr*)&sin, &len) < 0) oserror(); if(sin.sin_family != AF_INET || len != sizeof(sin)) error("not AF_INET"); *laddr = nhgetl(&sin.sin_addr.s_addr); *lport = nhgets(&sin.sin_port); } void so_listen(int fd) { if(listen(fd, 5) < 0) oserror(); } int so_accept(int fd, unsigned long *raddr, unsigned short *rport) { int nfd, len; struct sockaddr_in sin; len = sizeof(sin); nfd = accept(fd, (struct sockaddr*)&sin, &len); if(nfd < 0) oserror(); if(sin.sin_family != AF_INET || len != sizeof(sin)) error("not AF_INET"); *raddr = nhgetl(&sin.sin_addr.s_addr); *rport = nhgets(&sin.sin_port); return nfd; } void so_bind(int fd, int su, unsigned short port) { int i, one; struct sockaddr_in sin; one = 1; if(setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&one, sizeof(one)) < 0){ oserrstr(); print("setsockopt: %r"); } if(su) { for(i = 600; i < 1024; i++) { memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; sin.sin_port = i; if(bind(fd, (struct sockaddr*)&sin, sizeof(sin)) >= 0) return; } oserror(); } memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; hnputs(&sin.sin_port, port); if(bind(fd, (struct sockaddr*)&sin, sizeof(sin)) < 0) oserror(); } int so_gethostbyname(char *host, char**hostv, int n) { int i; char buf[32]; unsigned char *p; struct hostent *hp; hp = gethostbyname(host); if(hp == 0) return 0; for(i = 0; hp->h_addr_list[i] && i < n; i++) { p = (unsigned char*)hp->h_addr_list[i]; sprint(buf, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]); hostv[i] = strdup(buf); if(hostv[i] == 0) break; } return i; } char* hostlookup(char *host) { char buf[100]; uchar *p; struct hostent *he; he = gethostbyname(host); if(he != 0 && he->h_addr_list[0]) { p = (uchar*)he->h_addr_list[0]; sprint(buf, "%ud.%ud.%ud.%ud", p[0], p[1], p[2], p[3]); } else strcpy(buf, host); return strdup(buf); } int so_getservbyname(char *service, char *net, char *port) { struct servent *s; s = getservbyname(service, net); if(s == 0) return -1; sprint(port, "%d", nhgets(&s->s_port)); return 0; } int so_send(int fd, void *d, int n, int f) { return send(fd, d, n, f); } int so_recv(int fd, void *d, int n, int f) { return recv(fd, d, n, f); }