1 files changed, 73 insertions, 0 deletions

diff --git a/which.c b/which.c
new file mode 100644
index 000000000..46c2204a5
--- /dev/null
+++ b/which.c
@@ -0,0 +1,73 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Which implementation for busybox
+ *
+ * Copyright (C) 2000 by Lineo, inc.
+ * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ *
+ * 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 "internal.h"
+#include <stdio.h>
+#include <dirent.h>
+
+
+extern int which_main(int argc, char **argv)
+{
+        char *path_list, *test, *tmp;
+        struct dirent *next;
+
+        if (**(argv + 1) == '-') {
+                usage("which [COMMAND ...]\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+                                "\nLocates a COMMAND.\n"
+#endif
+                         );
+        }
+        argc--;
+
+        path_list = getenv("PATH");
+        if (!path_list)
+                path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin";
+
+        while(argc-- > 0 && *(argv++) != '\0' && strlen(*argv)) { 
+                for( test=path_list; (tmp=strchr(test, ':')) && (tmp+1)!=NULL; test=++tmp) {
+                        DIR *dir;
+                        *tmp='\0';
+                        //printf("Checking directory '%s'\n", test);
+                        dir = opendir(test);
+                        if (!dir)
+                                continue;
+                        while ((next = readdir(dir)) != NULL) {
+                                //printf("Checking file '%s'\n", next->d_name);
+                                if ((strcmp(next->d_name, *argv) == 0)) {
+                                        printf("%s/%s\n", test, next->d_name);
+                                        exit(TRUE);
+                                }
+                        }
+                }
+        }
+        exit(TRUE);
+}
+
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/