diff options
Diffstat (limited to 'common.c')
| -rw-r--r-- | common.c | 143 |
1 files changed, 88 insertions, 55 deletions
@@ -26,6 +26,7 @@ \* *********************************************************** */ #include "scope.h" +#include <fcntl.h> /* ********************************************** */ /* */ @@ -86,84 +87,101 @@ Free(p) /* */ /* ************************************************************ */ +#define __USE_BSD_SIGNAL #include <signal.h> -#ifdef SIGURG -void SignalURG(int dummy) +#ifdef SIGNALRETURNSINT +#define SIGVAL int +#else +#define SIGVAL void +#endif + +/* ARGSUSED */ +SIGVAL +SignalURG(n) + int n; { debug(1,(stderr, "==> SIGURG received\n")); } -#endif /* #ifdef SIGURG */ -#ifdef SIGPIPE -void SignalPIPE(int dummy) +/* ARGSUSED */ +SIGVAL +SignalPIPE(n) + int n; { + signal (SIGPIPE, SignalPIPE); debug(1,(stderr, "==> SIGPIPE received\n")); } -#endif /* #ifdef SIGPIPE */ -#ifdef SIGINT -void SignalINT(int dummy) +/* ARGSUSED */ +SIGVAL +SignalINT(n) + int n; { + signal (SIGINT, SignalINT); debug(1,(stderr, "==> SIGINT received\n")); - exit(1); -#endif /* #ifdef SIGINT */ + Interrupt = 1; } -#ifdef SIGQUIT -void SignalQUIT(int dummy) +/* ARGSUSED */ +SIGVAL +SignalQUIT(n) + int n; { debug(1,(stderr, "==> SIGQUIT received\n")); exit(1); -#endif /* #ifdef SIGQUIT */ } -#ifdef SIGTERM -void SignalTERM(int dummy) +/* ARGSUSED */ +SIGVAL +SignalTERM(n) + int n; { debug(1,(stderr, "==> SIGTERM received\n")); exit(1); -#endif /* #ifdef SIGTERM */ } -#ifdef SIGTSTP -void SignalTSTP(int dummy) +/* ARGSUSED */ +SIGVAL +SignalTSTP(n) + int n; { debug(1,(stderr, "==> SIGTSTP received\n")); } -#endif /* #ifdef SIGTSTP */ -#ifdef SIGCONT -void SignalCONT(int dummy) +/* ARGSUSED */ +SIGVAL +SignalCONT(n) + int n; +{ + debug(1,(stderr, "==> SIGCONT received\n")); +} + +/* ARGSUSED */ +SIGVAL +SignalUSR1(n) + int n; { + extern char ScopeEnabled; + debug(1,(stderr, "==> SIGCONT received\n")); + ScopeEnabled = ! ScopeEnabled; } -#endif /* #ifdef SIGCONT */ SetSignalHandling() { + extern char HandleSIGUSR1; + enterprocedure("SetSignalHandling"); -#ifdef SIGURG (void)signal(SIGURG, SignalURG); -#endif /* #ifdef SIGURG */ -#ifdef SIGPIPE (void)signal(SIGPIPE, SignalPIPE); -#endif /* #ifdef SIGPIPE */ -#ifdef SIGINT (void)signal(SIGINT, SignalINT); -#endif /* #ifdef SIGINT */ -#ifdef SIGQUIT (void)signal(SIGQUIT, SignalQUIT); -#endif /* #ifdef SIGQUIT */ -#ifdef SIGTERM (void)signal(SIGTERM, SignalTERM); -#endif /* #ifdef SIGTERM */ -#ifdef SIGTSTP (void)signal(SIGTSTP, SignalTSTP); -#endif /* #ifdef SIGTSTP */ -#ifdef SIGCONT (void)signal(SIGCONT, SignalCONT); -#endif /* #ifdef SIGCONT */ + if (HandleSIGUSR1) + (void)signal(SIGUSR1, SignalUSR1); } @@ -174,28 +192,33 @@ SetSignalHandling() /* */ /* ************************************************************ */ -#include <sys/types.h> /* needed by sys/socket.h and netinet/in.h */ #include <sys/uio.h> /* for struct iovec, used by socket.h */ #include <sys/socket.h> /* for AF_INET, SOCK_STREAM, ... */ #include <sys/ioctl.h> /* for FIONCLEX, FIONBIO, ... */ +#ifdef SVR4 +#include <sys/filio.h> +#endif #include <netinet/in.h> /* struct sockaddr_in */ #include <netdb.h> /* struct servent * and struct hostent * */ static int ON = 1 /* used in ioctl */ ; -#define BACKLOG 5 +#define BACKLOG 5 /* for use in the UsingFD call -- defined later */ extern int NewConnection (); -SetUpConnectionSocket(port) - int port; +SetUpConnectionSocket(iport, connectionFunc) + int iport; + int (*connectionFunc)(); { FD ConnectionSocket; struct sockaddr_in sin; -#ifndef SO_DONTLINGER + short port; + int one = 1; +#ifndef SO_DONTLINGER struct linger linger; -#endif /* #ifndef SO_DONTLINGER */ +#endif /* SO_DONTLINGER */ enterprocedure("SetUpConnectionSocket"); @@ -206,17 +229,17 @@ SetUpConnectionSocket(port) perror("socket"); exit(-1); } - (void)setsockopt(ConnectionSocket, SOL_SOCKET, SO_REUSEADDR, (char *)NULL, 0); + (void)setsockopt(ConnectionSocket, SOL_SOCKET, SO_REUSEADDR, (char *)&one, sizeof (int)); #ifdef SO_USELOOPBACK (void)setsockopt(ConnectionSocket, SOL_SOCKET, SO_USELOOPBACK, (char *)NULL, 0); -#endif /* #ifdef SO_USELOOPBACK */ -#ifdef SO_DONTLINGER +#endif +#ifdef SO_DONTLINGER (void)setsockopt(ConnectionSocket, SOL_SOCKET, SO_DONTLINGER, (char *)NULL, 0); -#else /* #ifdef SO_DONTLINGER */ +#else /* SO_DONTLINGER */ linger.l_onoff = 0; linger.l_linger = 0; (void)setsockopt(ConnectionSocket, SOL_SOCKET, SO_LINGER, (char *)&linger, sizeof linger); -#endif /* #ifdef SO_DONTLINGER */ +#endif /* SO_DONTLINGER */ /* define the name and port to be used with the connection socket */ bzero((char *)&sin, sizeof(sin)); @@ -231,7 +254,7 @@ SetUpConnectionSocket(port) struct hostent *hp; (void) gethostname(MyHostName, sizeof(MyHostName)); - ScopeHost = (char *) Malloc((long)(1+strlen(MyHostName))); + ScopeHost = (char *) Malloc((long)strlen(MyHostName)); (void)strcpy(ScopeHost, MyHostName); hp = gethostbyname(MyHostName); if (hp == NULL) @@ -243,7 +266,8 @@ SetUpConnectionSocket(port) addresses. INADDR_ANY should work with all of them at once. */ sin.sin_addr.s_addr = INADDR_ANY; - sin.sin_port = htons(port); + port = iport; + sin.sin_port = htons (port); ScopePort = port; /* bind the name and port number to the connection socket */ @@ -264,13 +288,22 @@ SetUpConnectionSocket(port) }; /* a few more parameter settings */ -#ifdef FIOCLEX +#ifdef FD_CLOEXEC + (void)fcntl(ConnectionSocket, F_SETFD, FD_CLOEXEC); +#else (void)ioctl(ConnectionSocket, FIOCLEX, 0); -#endif /* #ifdef FIOCLEX */ - (void)ioctl(ConnectionSocket, FIONBIO, &ON); +#endif + /* ultrix reads hang on Unix sockets, hpux reads fail */ +#if defined(O_NONBLOCK) && (!defined(ultrix) && !defined(hpux)) + (void) fcntl (ConnectionSocket, F_SETFL, O_NONBLOCK); +#else +#ifdef FIOSNBIO + (void) ioctl (ConnectionSocket, FIOSNBIO, &ON); +#else + (void) fcntl (ConnectionSocket, F_SETFL, FNDELAY); +#endif +#endif debug(4,(stderr, "Listening on FD %d\n", ConnectionSocket)); - UsingFD(ConnectionSocket, NewConnection); + UsingFD(ConnectionSocket, connectionFunc, 0); } - - |