diff options
Diffstat (limited to 'sunrpc/bindrsvprt.c')
| -rw-r--r-- | sunrpc/bindrsvprt.c | 68 |
1 files changed, 38 insertions, 30 deletions
diff --git a/sunrpc/bindrsvprt.c b/sunrpc/bindrsvprt.c index 44660de..e1d53ce 100644 --- a/sunrpc/bindrsvprt.c +++ b/sunrpc/bindrsvprt.c @@ -1,4 +1,3 @@ -static char sccsid[] = "@(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC 1.8 88/02/08 SMI"; /* * Sun RPC is a product of Sun Microsystems, Inc. and is provided for * unrestricted use provided that this legend is included on all tape @@ -27,11 +26,15 @@ static char sccsid[] = "@(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC 1.8 88/02/08 * 2550 Garcia Avenue * Mountain View, California 94043 */ - +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = "@(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC 1.8 88/02/08 SMI"; +#endif /* * Copyright (c) 1987 by Sun Microsystems, Inc. */ +#include <unistd.h> +#include <string.h> #include <sys/types.h> #include <sys/errno.h> #include <sys/socket.h> @@ -40,41 +43,46 @@ static char sccsid[] = "@(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC 1.8 88/02/08 /* * Bind a socket to a privileged IP port */ -bindresvport(sd, sin) - int sd; - struct sockaddr_in *sin; +int +bindresvport (int sd, struct sockaddr_in *sin) { - int res; - static short port; - struct sockaddr_in myaddr; + int res; + static short port; + struct sockaddr_in myaddr; #ifndef errno - extern int errno; + extern int errno; #endif - int i; + int i; #define STARTPORT 600 #define ENDPORT (IPPORT_RESERVED - 1) #define NPORTS (ENDPORT - STARTPORT + 1) - if (sin == (struct sockaddr_in *)0) { - sin = &myaddr; - bzero(sin, sizeof (*sin)); - sin->sin_family = AF_INET; - } else if (sin->sin_family != AF_INET) { - __set_errno (EPFNOSUPPORT); - return (-1); - } - if (port == 0) { - port = (getpid() % NPORTS) + STARTPORT; - } - res = -1; - __set_errno (EADDRINUSE); - for (i = 0; i < NPORTS && res < 0 && errno == EADDRINUSE; i++) { - sin->sin_port = htons(port++); - if (port > ENDPORT) { - port = STARTPORT; - } - res = bind(sd, sin, sizeof(struct sockaddr_in)); + if (sin == (struct sockaddr_in *) 0) + { + sin = &myaddr; + bzero (sin, sizeof (*sin)); + sin->sin_family = AF_INET; + } + else if (sin->sin_family != AF_INET) + { + __set_errno (EPFNOSUPPORT); + return -1; + } + if (port == 0) + { + port = (getpid () % NPORTS) + STARTPORT; + } + res = -1; + __set_errno (EADDRINUSE); + for (i = 0; i < NPORTS && res < 0 && errno == EADDRINUSE; i++) + { + sin->sin_port = htons (port++); + if (port > ENDPORT) + { + port = STARTPORT; } - return (res); + res = bind (sd, sin, sizeof (struct sockaddr_in)); + } + return res; } |