1 files changed, 90 insertions, 0 deletions
diff --git a/dev-libs/cyrus-sasl/files/cyrus-sasl-2.1.26-fix_dovecot_authentication.patch b/dev-libs/cyrus-sasl/files/cyrus-sasl-2.1.26-fix_dovecot_authentication.patch
new file mode 100644
index 000000000000..6fc9de80287e
--- /dev/null
+++ b/dev-libs/cyrus-sasl/files/cyrus-sasl-2.1.26-fix_dovecot_authentication.patch
@@ -0,0 +1,90 @@
+Bug #510320
+--- a/saslauthd/auth_rimap.c
++++ b/saslauthd/auth_rimap.c
+@@ -371,7 +371,7 @@
+     if ( rc>0 ) {
+         /* check if there is more to read */
+         fd_set         perm;
+-        int            fds, ret;
++        int            fds, ret, loopc;
+         struct timeval timeout;
+ 
+         FD_ZERO(&perm);
+@@ -380,6 +380,7 @@
+ 
+         timeout.tv_sec  = 1;
+         timeout.tv_usec = 0;
++        loopc = 0;
+         while( select (fds, &perm, NULL, NULL, &timeout ) >0 ) {
+            if ( FD_ISSET(s, &perm) ) {
+               ret = read(s, rbuf+rc, sizeof(rbuf)-rc);
+@@ -387,6 +388,14 @@
+                  rc = ret;
+                  break;
+               } else {
++                 if (ret == 0) {
++                   loopc += 1;
++                 } else {
++                   loopc = 0;
++                 }
++                 if (loopc > sizeof(rbuf)) { // arbitrary chosen value
++                   break;
++                 }
+                  rc += ret;
+               }
+            }
+@@ -484,7 +493,7 @@
+     if ( rc>0 ) {
+         /* check if there is more to read */
+         fd_set         perm;
+-        int            fds, ret;
++        int            fds, ret, loopc;
+         struct timeval timeout;
+ 
+         FD_ZERO(&perm);
+@@ -493,6 +502,7 @@
+ 
+         timeout.tv_sec  = 1;
+         timeout.tv_usec = 0;
++        loopc = 0;
+         while( select (fds, &perm, NULL, NULL, &timeout ) >0 ) {
+            if ( FD_ISSET(s, &perm) ) {
+               ret = read(s, rbuf+rc, sizeof(rbuf)-rc);
+@@ -500,6 +510,14 @@
+                  rc = ret;
+                  break;
+               } else {
++                 if (ret == 0) {
++                   loopc += 1;
++                 } else {
++                   loopc = 0;
++                 }
++                 if (loopc > sizeof(rbuf)) { // arbitrary chosen value
++                   break;
++                 }
+                  rc += ret;
+               }
+            }
+--- a/lib/checkpw.c
++++ b/lib/checkpw.c
+@@ -587,16 +587,14 @@
+ 	    /* Timeout. */
+ 	    errno = ETIMEDOUT;
+ 	    return -1;
+-	case +1:
+-	    if (FD_ISSET(fd, &rfds)) {
+-		/* Success, file descriptor is readable. */
+-		return 0;
+-	    }
+-	    return -1;
+ 	case -1:
+ 	    if (errno == EINTR || errno == EAGAIN)
+ 		continue;
+ 	default:
++            if (FD_ISSET(fd, &rfds)) {
++                /* Success, file descriptor is readable. */
++                return 0;
++            }
+ 	    /* Error catch-all. */
+ 	    return -1;
+ 	}