make somewhat safer

diff --git a/lang/cem/libcc/stdio/getgrent.c b/lang/cem/libcc/stdio/getgrent.c
index cea6baa..de75c9d 100644 (file)
--- a/lang/cem/libcc/stdio/getgrent.c
+++ b/lang/cem/libcc/stdio/getgrent.c
@@ -64,7 +64,7 @@ static getline ()
 
 static skip_period () 
 {
-        while (*_buf != ':')
+        while (*_buf && *_buf != ':')
                _buf++;
         *_buf++ = '\0';
 }

diff --git a/lang/cem/libcc/stdio/getpwent.c b/lang/cem/libcc/stdio/getpwent.c
index 50ecbbe..1ab9041 100644 (file)
--- a/lang/cem/libcc/stdio/getpwent.c
+++ b/lang/cem/libcc/stdio/getpwent.c
@@ -65,7 +65,7 @@ static getline ()
 
 static skip_period () 
 {
-       while (*_buf != ':')
+       while (*_buf && *_buf != ':')
                _buf++;
 
        *_buf++ = '\0';