update from main archive 961126

[kopensolaris-gnu/glibc.git] / sysdeps / generic / pty.c

diff --git a/sysdeps/generic/pty.c b/sysdeps/generic/pty.c
index 8df8aba..660602b 100644 (file)
--- a/sysdeps/generic/pty.c
+++ b/sysdeps/generic/pty.c
@@ -59,9 +59,12 @@ openpty(amaster, aslave, name, termp, winp)
        static char line[] = "/dev/ptyXX";
        register const char *cp1, *cp2;
        register int master, slave, ttygid;
+       size_t buflen = sysconf (_SC_GETGR_R_SIZE_MAX);
+       char buffer[buflen];
+       struct group grbuffer;
        struct group *gr;
 
-       if ((gr = getgrnam("tty")) != NULL)
+       if (getgrnam_r("tty", &grbuffer, buffer, buflen, &gr) >= 0)
                ttygid = gr->gr_gid;
        else
                ttygid = -1;