File tcpd-check-finger-presence.patch of Package tcpd

Index: tcp_wrappers_7.6/safe_finger.c
===================================================================
--- tcp_wrappers_7.6.orig/safe_finger.c
+++ tcp_wrappers_7.6/safe_finger.c
@@ -32,12 +32,10 @@ static char sccsid[] = "@(#) safe_finger
 
 /* Local stuff */
 
-char    path[] = "PATH=/bin:/usr/bin:/usr/sbin";
-
 #define	TIME_LIMIT	60		/* Do not keep listinging forever */
 #define	INPUT_LENGTH	100000		/* Do not keep listinging forever */
 #define	LINE_LENGTH	128		/* Editors can choke on long lines */
-#define	FINGER_PROGRAM	"finger"	/* Most, if not all, UNIX systems */
+#define	FINGER_PROGRAM	"/usr/bin/finger"	/* Most, if not all, UNIX systems */
 #define	UNPRIV_NAME	"nobody"	/* Preferred privilege level */
 #define	UNPRIV_UGID	32767		/* Default uid and gid */
 
@@ -76,9 +74,9 @@ int main(int argc, char **argv)
     /*
      * Redirect our standard input through the raw finger command.
      */
-    if (putenv(path)) {
-	fprintf(stderr, "%s: putenv: out of memory", argv[0]);
-	exit(1);
+    if (access(FINGER_PROGRAM, X_OK) != 0) {
+	printf("Can not execute " FINGER_PROGRAM ". Please install 'finger' package.\n");
+        return 1;
     }
     argv[0] = FINGER_PROGRAM;
     finger_pid = pipe_stdin(argv);