#include <sys/types.h> #include <sys/stat.h> #include <sys/socket.h> #include <netinet/in.h> #include <sys/un.h> #include <arpa/inet.h> #include <netinet/in_systm.h> #include <netinet/ip.h> #include <string.h> #include <stdio.h> #include <errno.h> #include <unistd.h> #include "mbuf.h" #include "log.h" #include "loadalias.h" #include "vars.h" #include "server.h" int server = UNKNOWN_SERVER; static struct sockaddr_un ifsun; static char *rm; int ServerLocalOpen(const char *name, mode_t mask) { int s; ifsun.sun_len = strlen(name); if (ifsun.sun_len > sizeof ifsun.sun_path - 1) { LogPrintf(LogERROR, "Local: %s: Path too long\n", name); return 1; } ifsun.sun_family = AF_LOCAL; strcpy(ifsun.sun_path, name); s = socket(PF_LOCAL, SOCK_STREAM, 0); if (s < 0) { LogPrintf(LogERROR, "Local: socket: %s\n", strerror(errno)); return 2; } setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &s, sizeof s); mask = umask(mask); if (bind(s, (struct sockaddr *) & ifsun, sizeof(ifsun)) < 0) { umask(mask); LogPrintf(LogERROR, "Local: bind: %s\n", strerror(errno)); if (errno == EADDRINUSE && VarTerm) fprintf(VarTerm, "Wait for a while, then try again.\n"); close(s); unlink(name); return 3; } umask(mask); if (listen(s, 5) != 0) { LogPrintf(LogERROR, "Local: Unable to listen to socket - OS overload?\n"); close(s); unlink(name); return 4; } ServerClose(); server = s; rm = ifsun.sun_path; LogPrintf(LogPHASE, "Listening at local socket %s.\n", name); return 0; } int ServerTcpOpen(int port) { struct sockaddr_in ifsin; int s; s = socket(PF_INET, SOCK_STREAM, 0); if (s < 0) { LogPrintf(LogERROR, "Tcp: socket: %s\n", strerror(errno)); return 5; } ifsin.sin_family = AF_INET; ifsin.sin_addr.s_addr = INADDR_ANY; ifsin.sin_port = htons(port); setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &s, sizeof s); if (bind(s, (struct sockaddr *) & ifsin, sizeof(ifsin)) < 0) { LogPrintf(LogERROR, "Tcp: bind: %s\n", strerror(errno)); if (errno == EADDRINUSE && VarTerm) fprintf(VarTerm, "Wait for a while, then try again.\n"); close(s); return 6; } if (listen(s, 5) != 0) { LogPrintf(LogERROR, "Tcp: Unable to listen to socket - OS overload?\n"); close(s); return 7; } ServerClose(); server = s; LogPrintf(LogPHASE, "Listening at port %d.\n", port); return 0; } void ServerClose() { if (server >= 0) { close(server); if (rm) { unlink(rm); rm = 0; } } server = -1; } int ServerType() { if (server == UNKNOWN_SERVER) return UNKNOWN_SERVER; else if (server == NO_SERVER) return NO_SERVER; else if (rm) return LOCAL_SERVER; else return INET_SERVER; }