Fixed memory leaks

CHANGES

@@ -75,6 +75,9 @@ corrections:
 	Socat did not work in FIPS mode because 1024 instead of 512 bit DH prime
 	is required. Thanks to Zhigang Wang for reporting and sending a patch.
 
+	Christophe Leroy provided a patch that fixes memory leaks reported by
+	valgrind
+
 porting:
 	Socat included <sys/poll.h> instead of POSIX <poll.h>
 	Thanks to John Spencer for reporting this issue.

socat.c

@@ -790,6 +790,7 @@ int _socat(void) {
 	       if (total_timeout.tv_sec < 0 ||
 		   total_timeout.tv_sec == 0 && total_timeout.tv_usec < 0) {
 		  Notice("inactivity timeout triggered");
+		  free(buff);
 		  return 0;
 	       }
 	    }
@@ -902,6 +903,7 @@ int _socat(void) {
 		 fds[0].fd, fds[0].events, fds[1].fd, fds[1].events,
 		 fds[2].fd, fds[2].events, fds[3].fd, fds[3].events,
 		 timeout.tv_sec, timeout.tv_usec, strerror(errno));
+		  free(buff);
 	    return -1;
       } else if (retval == 0) {
 	 Info2("poll timed out (no data within %ld.%06ld seconds)",
@@ -923,6 +925,7 @@ int _socat(void) {
 		    socat_opts.total_timeout.tv_usec != 0) {
 	    /* there was a total inactivity timeout */
 	    Notice("inactivity timeout triggered");
+		  free(buff);
 	    return 0;
 	 }
 
@@ -941,6 +944,7 @@ int _socat(void) {
 	       named pipe. a read() might imm. return with 0 bytes, resulting
 	       in a loop? */ 
 	    Error1("poll(...[%d]: invalid request", fd1in->fd);
+		  free(buff);
 	    return -1;
 	 }
 	 mayrd1 = true;
@@ -949,6 +953,7 @@ int _socat(void) {
 	  (fd2in->revents)) {
 	 if (fd2in->revents & POLLNVAL) {
 	    Error1("poll(...[%d]: invalid request", fd2in->fd);
+		  free(buff);
 	    return -1;
 	 }
 	 mayrd2 = true;
@@ -956,6 +961,7 @@ int _socat(void) {
       if (XIO_GETWRFD(sock1) >= 0 && fd1out->fd >= 0 && fd1out->revents) {
 	 if (fd1out->revents & POLLNVAL) {
 	    Error1("poll(...[%d]: invalid request", fd1out->fd);
+		  free(buff);
 	    return -1;
 	 }
 	 maywr1 = true;
@@ -963,6 +969,7 @@ int _socat(void) {
       if (XIO_GETWRFD(sock2) >= 0 && fd2out->fd >= 0 && fd2out->revents) {
 	 if (fd2out->revents & POLLNVAL) {
 	    Error1("poll(...[%d]: invalid request", fd2out->fd);
+		  free(buff);
 	    return -1;
 	 }
 	 maywr2 = true;
@@ -1088,6 +1095,7 @@ int _socat(void) {
    xioclose(sock1);
    xioclose(sock2);
 
+		  free(buff);
    return 0;
 }
 

xio-ipapp.c

@@ -1,5 +1,5 @@
 /* source: xio-ipapp.c */
-/* Copyright Gerhard Rieger 2001-2008 */
+/* Copyright Gerhard Rieger */
 /* Published under the GNU General Public License V.2, see file COPYING */
 
 /* this file contains the source for TCP and UDP related options */
@@ -92,12 +92,13 @@ int xioopen_ipapp_connect(int argc, const char *argv[], struct opt *opts,
 	    if (result == STAT_RETRYLATER) {
 	       Nanosleep(&xfd->intervall, NULL);
 	    }
-	    dropopts(opts, PH_ALL); opts = copyopts(opts0, GROUP_ALL);
+	    dropopts(opts, PH_ALL); free(opts); opts = copyopts(opts0, GROUP_ALL);
 	    continue;
 	 }
 	 return STAT_NORETRY;
 #endif /* WITH_RETRY */
       default:
+	  free(opts0);free(opts);
 	 return result;
       }
 
@@ -113,6 +114,7 @@ int xioopen_ipapp_connect(int argc, const char *argv[], struct opt *opts,
 	    if (xfd->forever || --xfd->retry) {
 	       Nanosleep(&xfd->intervall, NULL); continue;
 	    }
+	  free(opts0);
 	    return STAT_RETRYLATER;
 	 }
 
@@ -125,7 +127,7 @@ int xioopen_ipapp_connect(int argc, const char *argv[], struct opt *opts,
 	 Close(xfd->fd);
 	 /* with and without retry */
 	 Nanosleep(&xfd->intervall, NULL);
-	 dropopts(opts, PH_ALL); opts = copyopts(opts0, GROUP_ALL);
+	 dropopts(opts, PH_ALL); free(opts); opts = copyopts(opts0, GROUP_ALL);
 	 continue;	/* with next socket() bind() connect() */
       } else
 #endif /* WITH_RETRY */
@@ -136,8 +138,10 @@ int xioopen_ipapp_connect(int argc, const char *argv[], struct opt *opts,
    /* only "active" process breaks (master without fork, or child) */
 
    if ((result = _xio_openlate(xfd, opts)) < 0) {
+	   free(opts0);free(opts);
       return result;
    }
+   free(opts0);free(opts);
    return 0;
 }