Don't crash initdb when we fail to get the current username.

Give an error message and exit instead, like we do elsewhere...

Per report from Wez Furlong and Robert Treat.

diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index 3469fa506cf15e512c9a668030d88bfeb3d1b316..b0db486176a2af94aa11f728bd016a6184bf6534 100644 (file)
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -42,7 +42,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  * Portions taken from FreeBSD.
  *
- * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.99.2.3 2006/05/27 18:07:22 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.99.2.4 2009/03/31 18:58:26 mha Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -642,6 +642,13 @@ get_id(void)
                exit(1);
        }
 #endif
+       if (!pw)
+       {
+               fprintf(stderr,
+                               _("%s: could not obtain information about current user: %s\n"),
+                                progname, strerror(errno));
+               exit(1);
+       }
 #else                                                  /* the windows code */
 
        struct passwd_win32
@@ -653,7 +660,12 @@ get_id(void)
        DWORD           pwname_size = sizeof(pass_win32.pw_name) - 1;
 
        pw->pw_uid = 1;
-       GetUserName(pw->pw_name, &pwname_size);
+       if (!GetUserName(pw->pw_name, &pwname_size))
+       {
+               fprintf(stderr, _("%s: could not get current user name: %s\n"),
+                               progname, strerror(errno));
+               exit(1);
+       }
 #endif
 
        return xstrdup(pw->pw_name);