*: random code shrink
[oweals/busybox.git] / e2fsprogs / lsattr.c
index 0f1c6f22c709f051af1d6e6d27bbd1fbdc49dcfb..7d475a96913fad29906277ff90b0ce7426871508 100644 (file)
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
 /*
  * lsattr.c            - List file attributes on an ext2 file system
  *
  * 98/12/29    - Display version info only when -V specified (G M Sipe)
  */
 
-#include <sys/types.h>
-#include <dirent.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/param.h>
-#include <sys/stat.h>
-
-#include <ext2fs/ext2_fs.h>
-#include "e2fsbb.h"
-#include "e2p/e2p.h"
-
-#ifdef __GNUC__
-#define EXT2FS_ATTR(x) __attribute__(x)
-#else
-#define EXT2FS_ATTR(x)
-#endif
-
-static int all;
-static int dirs_opt;
-static unsigned pf_options;
-static int recursive;
-static int verbose;
-static int generation_opt;
-
-#ifdef _LFS64_LARGEFILE
-#define LSTAT          lstat64
-#define STRUCT_STAT    struct stat64
-#else
-#define LSTAT          lstat
-#define STRUCT_STAT    struct stat
-#endif
-
-#if 0
-static void usage(void)
-{
-       fprintf(stderr, _("Usage: %s [-RVadlv] [files...]\n"), program_name);
-       exit(1);
-}
-#endif
+#include "libbb.h"
+#include "e2fs_lib.h"
+
+enum {
+       OPT_RECUR      = 0x1,
+       OPT_ALL        = 0x2,
+       OPT_DIRS_OPT   = 0x4,
+       OPT_PF_LONG    = 0x8,
+       OPT_GENERATION = 0x10,
+};
 
-static void list_attributes (const char * name)
+static void list_attributes(const char *name)
 {
-       unsigned long flags;
+       unsigned long fsflags;
        unsigned long generation;
 
-       if (fgetflags (name, &flags) == -1) {
-               com_err (program_name, errno, _("While reading flags on %s"),
-                        name);
-               return;
-       }
-       if (generation_opt) {
-               if (fgetversion (name, &generation) == -1) {
-                       com_err (program_name, errno,
-                                _("While reading version on %s"),
-                                name);
-                       return;
-               }
-               printf ("%5lu ", generation);
+       if (fgetflags(name, &fsflags) != 0)
+               goto read_err;
+
+       if (option_mask32 & OPT_GENERATION) {
+               if (fgetversion(name, &generation) != 0)
+                       goto read_err;
+               printf("%5lu ", generation);
        }
-       if (pf_options & PFOPT_LONG) {
+
+       if (option_mask32 & OPT_PF_LONG) {
                printf("%-28s ", name);
-               print_flags(stdout, flags, pf_options);
-               fputc('\n', stdout);
+               print_e2flags(stdout, fsflags, PFOPT_LONG);
+               bb_putchar('\n');
        } else {
-               print_flags(stdout, flags, pf_options);
+               print_e2flags(stdout, fsflags, 0);
                printf(" %s\n", name);
        }
-}
-
-static int lsattr_dir_proc (const char *, struct dirent *, void *);
 
-static void lsattr_args (const char * name)
-{
-       STRUCT_STAT     st;
-
-       if (LSTAT (name, &st) == -1)
-               com_err (program_name, errno, _("while trying to stat %s"),
-                        name);
-       else {
-               if (S_ISDIR(st.st_mode) && !dirs_opt)
-                       iterate_on_dir (name, lsattr_dir_proc, NULL);
-               else
-                       list_attributes (name);
-       }
+       return;
+ read_err:
+       bb_perror_msg("reading %s", name);
 }
 
-static int lsattr_dir_proc (const char * dir_name, struct dirent * de, 
-                           void * private EXT2FS_ATTR((unused)))
+static int FAST_FUNC lsattr_dir_proc(const char *dir_name,
+               struct dirent *de,
+               void *private UNUSED_PARAM)
 {
-       STRUCT_STAT     st;
+       struct stat st;
        char *path;
-       int dir_len = strlen(dir_name);
-
-       path = malloc(dir_len + strlen (de->d_name) + 2);
-
-       if (dir_len && dir_name[dir_len-1] == '/')
-               sprintf (path, "%s%s", dir_name, de->d_name);
-       else
-               sprintf (path, "%s/%s", dir_name, de->d_name);
-       if (LSTAT (path, &st) == -1)
-               perror (path);
-       else {
-               if (de->d_name[0] != '.' || all) {
-                       list_attributes (path);
-                       if (S_ISDIR(st.st_mode) && recursive &&
-                           strcmp(de->d_name, ".") &&
-                           strcmp(de->d_name, "..")) {
-                               printf ("\n%s:\n", path);
-                               iterate_on_dir (path, lsattr_dir_proc, NULL);
-                               printf ("\n");
-                       }
+
+       path = concat_path_file(dir_name, de->d_name);
+
+       if (lstat(path, &st) != 0)
+               bb_perror_msg("stat %s", path);
+       else if (de->d_name[0] != '.' || (option_mask32 & OPT_ALL)) {
+               list_attributes(path);
+               if (S_ISDIR(st.st_mode) && (option_mask32 & OPT_RECUR)
+                && !DOT_OR_DOTDOT(de->d_name)
+               ) {
+                       printf("\n%s:\n", path);
+                       iterate_on_dir(path, lsattr_dir_proc, NULL);
+                       bb_putchar('\n');
                }
        }
+
        free(path);
        return 0;
 }
 
-int lsattr_main (int argc, char ** argv)
+static void lsattr_args(const char *name)
 {
-       int c;
-       int i;
-
-#ifdef ENABLE_NLS
-       setlocale(LC_MESSAGES, "");
-       setlocale(LC_CTYPE, "");
-       bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
-       textdomain(NLS_CAT_NAME);
-#endif
-#if 0
-       if (argc && *argv)
-               program_name = *argv;
-#endif
-       while ((c = getopt (argc, argv, "Radlv")) != EOF)
-               switch (c)
-               {
-                       case 'R':
-                               recursive = 1;
-                               break;
-                       case 'V':
-                               verbose = 1;
-                               break;
-                       case 'a':
-                               all = 1;
-                               break;
-                       case 'd':
-                               dirs_opt = 1;
-                               break;
-                       case 'l':
-                               pf_options = PFOPT_LONG;
-                               break;
-                       case 'v':
-                               generation_opt = 1;
-                               break;
-                       default:
-                               usage();
-               }
+       struct stat st;
+
+       if (lstat(name, &st) == -1) {
+               bb_perror_msg("stat %s", name);
+       } else if (S_ISDIR(st.st_mode) && !(option_mask32 & OPT_DIRS_OPT)) {
+               iterate_on_dir(name, lsattr_dir_proc, NULL);
+       } else {
+               list_attributes(name);
+       }
+}
+
+int lsattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int lsattr_main(int argc UNUSED_PARAM, char **argv)
+{
+       getopt32(argv, "Radlv");
+       argv += optind;
+
+       if (!*argv)
+               *--argv = (char*)".";
+       do lsattr_args(*argv++); while (*argv);
 
-#if 0
-       if (verbose)
-               fprintf (stderr, "lsattr %s (%s)\n",
-                        E2FSPROGS_VERSION, E2FSPROGS_DATE);
-#endif
-       if (optind > argc - 1)
-               lsattr_args (".");
-       else
-               for (i = optind; i < argc; i++)
-                       lsattr_args (argv[i]);
-       exit(0);
+       return EXIT_SUCCESS;
 }