setup: joinpasswd.c - test return values

[arekm]

Author: arekm                        Date: Sat Feb 21 18:26:20 2009 GMT
Module: setup                         Tag: HEAD
---- Log message:
- test return values

---- Files affected:
setup:
   joinpasswd.c (1.9 -> 1.10) 

---- Diffs:

================================================================
Index: setup/joinpasswd.c
diff -u setup/joinpasswd.c:1.9 setup/joinpasswd.c:1.10
--- setup/joinpasswd.c:1.9	Fri Sep 26 10:27:39 2003
+++ setup/joinpasswd.c	Sat Feb 21 19:26:15 2009
@@ -102,7 +102,8 @@
 	fd = open(name, O_RDONLY);
 	if (fd == -1)
 		return NULL;
-	fstat(fd, &st);
+	if (fstat(fd, &st) < 0)
+		return NULL;
 	*sz = st.st_size;
 	ptr = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
 	if (ptr == MAP_FAILED)
@@ -282,6 +283,8 @@
 #endif /* SILENT */
 
 	fd = open(old_name, O_WRONLY|O_APPEND);
+	if (fd < 0)
+		fatal("cannot open old file");
 	
 	for (i = 0; i < new_sz; ) {
 		id = new + i;
================================================================

---- CVS-web:
    http://cvs.pld-linux.org/cgi-bin/cvsweb.cgi/setup/joinpasswd.c?r1=1.9&r2=1.10&f=u