commit ce9a7ef692678f8fb9cd2228dd2c00905f240f24
author Mislav Novakovic <mislav.novakovic@sartura.hr> Tue Aug 08 13:45:52 2017 +0200
committer Mislav Novakovic <mislav.novakovic@sartura.hr> Wed Aug 09 12:49:30 2017 +0200
tree bc61753075a9660b531c9f88729e067619cf89ae
parent ebf4bd7f026163159daed995d36b6f3d99152052

CHANGE add mutex lock when crypt() is used

Signed-off-by: Mislav Novakovic <mislav.novakovic@sartura.hr>

src/session_server_ssh.c

diff --git a/src/session_server_ssh.c b/src/session_server_ssh.c
index 31abce2..bb657f7 100644
--- a/src/session_server_ssh.c
+++ b/src/session_server_ssh.c
@@ -28,6 +28,10 @@
 #include "session_server_ch.h"
 #include "libnetconf.h"
 
+#if !defined(HAVE_CRYPT_R)
+pthread_mutex_t crypt_lock = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
 extern struct nc_server_opts server_opts;
 
 static char *
@@ -770,7 +774,9 @@
     cdata.initialized = 0;
     new_pass_hash = crypt_r(pass_clear, pass_hash, &cdata);
 #else
+    pthread_mutex_lock(&crypt_lock);
     new_pass_hash = crypt(pass_clear, pass_hash);
+    pthread_mutex_unlock(&crypt_lock);
 #endif
     return strcmp(new_pass_hash, pass_hash);
 }