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Diffstat (limited to 'libc/inet/rpc/bindresvport.c')
-rw-r--r--libc/inet/rpc/bindresvport.c77
1 files changed, 42 insertions, 35 deletions
diff --git a/libc/inet/rpc/bindresvport.c b/libc/inet/rpc/bindresvport.c
index 752360232..7dcebe7dc 100644
--- a/libc/inet/rpc/bindresvport.c
+++ b/libc/inet/rpc/bindresvport.c
@@ -5,77 +5,84 @@
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
- *
+ *
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
+ *
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
- *
+ *
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
- *
+ *
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
- *
+ *
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
-
/*
* Copyright (c) 1987 by Sun Microsystems, Inc.
*/
#define __FORCE_GLIBC
#include <features.h>
+
+#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
-#include <sys/errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
/*
* Bind a socket to a privileged IP port
*/
-int 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;
- extern int errno;
- int i;
+ int res;
+ static short port;
+ struct sockaddr_in myaddr;
+ 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, (struct sockaddr *)sin, (socklen_t)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, (struct sockaddr *)sin, sizeof(struct sockaddr_in));
+ }
+
+ return res;
}