trim out useless defines and use some busybox funcs

diff --git a/e2fsprogs/e2p/iod.c b/e2fsprogs/e2p/iod.c
index 808d3a39d097ceffd6ad035ae0f3f7174fc3966f..5321f2da1882e8ef850246afc2986375974d2258 100644 (file)
--- a/e2fsprogs/e2p/iod.c
+++ b/e2fsprogs/e2p/iod.c
@@ -15,9 +15,7 @@
  */
 
 #include "e2p.h"
-#if HAVE_UNISTD_H
 #include <unistd.h>
-#endif
 #include <stdlib.h>
 #include <string.h>
 
@@ -27,27 +25,10 @@ int iterate_on_dir (const char * dir_name,
 {
        DIR * dir;
        struct dirent *de, *dep;
-       int     max_len = -1, len;
+       int     max_len, len;
 
-#if HAVE_PATHCONF && defined(_PC_NAME_MAX) 
-       max_len = pathconf(dir_name, _PC_NAME_MAX);
-#endif
-       if (max_len == -1) {
-#ifdef _POSIX_NAME_MAX
-               max_len = _POSIX_NAME_MAX;
-#else
-#ifdef NAME_MAX
-               max_len = NAME_MAX;
-#else
-               max_len = 256;
-#endif /* NAME_MAX */
-#endif /* _POSIX_NAME_MAX */
-       }
-       max_len += sizeof(struct dirent);
-
-       de = malloc(max_len+1);
-       if (!de)
-               return -1;
+       max_len = PATH_MAX + sizeof(struct dirent);
+       de = (struct dirent *)xmalloc(max_len+1);
        memset(de, 0, max_len+1);
 
        dir = opendir (dir_name);
@@ -57,12 +38,10 @@ int iterate_on_dir (const char * dir_name,
        }
        while ((dep = readdir (dir))) {
                len = sizeof(struct dirent);
-#ifdef HAVE_RECLEN_DIRENT
                if (len < dep->d_reclen)
                        len = dep->d_reclen;
                if (len > max_len)
                        len = max_len;
-#endif
                memcpy(de, dep, len);
                (*func) (dir_name, de, private);
        }