Imported from util-linux-2.10s tarball.

[thirdparty/util-linux.git] / misc-utils / look.c

diff --git a/misc-utils/look.c b/misc-utils/look.c
index a8e826fa4822b91a74735e3d031a984e9695c0b1..d601e1c97fa94cfad32577fc9c53d39be5bc75eb 100644 (file)
--- a/misc-utils/look.c
+++ b/misc-utils/look.c
@@ -137,13 +137,25 @@ main(int argc, char *argv[])
 
        if ((fd = open(file, O_RDONLY, 0)) < 0 || fstat(fd, &sb))
                err("%s: %s", file, strerror(errno));
-       if ((void *)(front = mmap(NULL,
-                                 (size_t)sb.st_size,
-                                 PROT_READ,
-                                 MAP_FILE|MAP_SHARED,
-                                 fd,
-                                 (off_t)0)) <= (void *)0)
+       front = mmap(NULL, (size_t) sb.st_size, PROT_READ,
+#ifdef MAP_FILE
+                    MAP_FILE |
+#endif
+                    MAP_SHARED, fd, (off_t) 0);
+       if
+#ifdef MAP_FAILED
+          (front == MAP_FAILED)
+#else
+          ((void *)(front) <= (void *)0)
+#endif
                err("%s: %s", file, strerror(errno));
+
+#if 0
+       /* workaround for mmap problem (rmiller@duskglow.com) */
+       if (front == (void *)0)
+               return 1;
+#endif
+
        back = front + sb.st_size;
        return look(front, back);
 }