Realpath applet

3 files changed, 52 insertions, 0 deletions

diff --git a/coreutils/realpath.c b/coreutils/realpath.c
new file mode 100644
index 000000000..7ef935ee0
--- /dev/null
+++ b/coreutils/realpath.c
@@ -0,0 +1,44 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <limits.h>
+#include <stdlib.h>
+
+#include "busybox.h"
+
+int realpath_main(int argc, char **argv)
+{
+        char *resolved_path;
+        int count;
+
+        if (argc == 1) {
+                show_usage();
+        }
+
+        resolved_path = malloc(PATH_MAX);
+
+        for (count = 1; count < argc; count++) {
+                resolved_path = realpath(argv[count], resolved_path);
+                if (resolved_path) {
+                        puts(resolved_path);
+                } else {
+                        perror_msg("%s", argv[count]);
+                }
+        }
+        free(resolved_path);
+
+        return(EXIT_SUCCESS);
+}
\ No newline at end of file
diff --git a/include/applets.h b/include/applets.h
index d8c4b38a0..b7171f7a1 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -416,6 +416,9 @@
 #ifdef CONFIG_READLINK
         APPLET(readlink, readlink_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
 #endif
+#ifdef CONFIG_REALPATH
+        APPLET(realpath, realpath_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
+#endif
 #ifdef CONFIG_REBOOT
         APPLET(reboot, reboot_main, _BB_DIR_SBIN, _BB_SUID_NEVER)
 #endif
diff --git a/include/usage.h b/include/usage.h
index 2e8720e94..17fd4073a 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -1638,6 +1638,11 @@
 #define readlink_full_usage \
         "Read a symbolic link."
 
+#define realpath_trivial_usage \
+        "pathname  ..."
+#define realpath_full_usage \
+        "return the canonicalized absolute pathnames of given arguments\n\n"
+        
 #define reboot_trivial_usage \
         ""
 #define reboot_full_usage \