Move awk from textutils to editors. Cleanup run-parts, saves 200 bytes, moves the guts of run_parts to libbb to be used by ifupdown.

1 files changed, 139 insertions, 0 deletions

diff --git a/libbb/run_parts.c b/libbb/run_parts.c
new file mode 100644
index 0000000..bf906a3
--- /dev/null
+++ b/libbb/run_parts.c
@@ -0,0 +1,139 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini run-parts implementation for busybox
+ *
+ *
+ * Copyright (C) 2001 by Emanuele Aina <emanuele.aina@tiscali.it>
+ *
+ * Based on the Debian run-parts program, version 1.15
+ *   Copyright (C) 1996 Jeff Noxon <jeff@router.patch.net>,
+ *   Copyright (C) 1996-1999 Guy Maor <maor@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
+ *
+ */
+
+/* This is my first attempt to write a program in C (well, this is my first
+ * attempt to write a program! :-) . */
+
+/* This piece of code is heavily based on the original version of run-parts,
+ * taken from debian-utils. I've only removed the long options and a the 
+ * report mode. As the original run-parts support only long options, I've
+ * broken compatibility because the BusyBox policy doesn't allow them. 
+ * The supported options are: 
+ * -t			test. Print the name of the files to be executed, without
+ * 				execute them.
+ * -a ARG		argument. Pass ARG as an argument the program executed. It can 
+ * 				be repeated to pass multiple arguments.
+ * -u MASK 		umask. Set the umask of the program executed to MASK. */
+
+/* TODO 
+ * done - convert calls to error in perror... and remove error()
+ * done - convert malloc/realloc to their x... counterparts 
+ * done - remove catch_sigchld
+ * done - use bb's concat_path_file() 
+ * done - declare run_parts_main() as extern and any other function as static?
+ */
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#include "libbb.h"
+
+/* valid_name */
+/* True or false? Is this a valid filename (upper/lower alpha, digits,
+ * underscores, and hyphens only?)
+ */
+static int valid_name(const struct dirent *d)
+{
+	char *c = d->d_name;
+
+	while (*c) {
+		if (!isalnum(*c) && (*c != '_') && (*c != '-')) {
+			return 0;
+		}
+		++c;
+	}
+	return 1;
+}
+
+/* run_parts */
+/* Find the parts to run & call run_part() */
+extern int run_parts(char **args, const unsigned char test_mode)
+{
+	struct dirent **namelist = 0;
+	struct stat st;
+	char *filename;
+	int entries;
+	int i;
+	int exitstatus = 0;
+
+	/* scandir() isn't POSIX, but it makes things easy. */
+	entries = scandir(args[0], &namelist, valid_name, alphasort);
+
+	if (entries == -1) {
+		perror_msg_and_die("failed to open directory %s", args[0]);
+	}
+
+	for (i = 0; i < entries; i++) {
+
+		filename = concat_path_file(args[0], namelist[i]->d_name);
+
+		if (stat(filename, &st) < 0) {
+			perror_msg_and_die("failed to stat component %s", filename);
+		}
+		if (S_ISREG(st.st_mode) && !access(filename, X_OK)) {
+			if (test_mode)
+				printf("run-parts would run %s\n", filename);
+			else {
+				int result;
+				int pid;
+
+				if ((pid = fork()) < 0) {
+					perror_msg_and_die("failed to fork");
+				} else if (!pid) {
+					execv(args[0], args);
+					perror_msg_and_die("failed to exec %s", args[0]);
+				}
+
+				waitpid(pid, &result, 0);
+
+				if (WIFEXITED(result) && WEXITSTATUS(result)) {
+					perror_msg("%s exited with return code %d", args[0], WEXITSTATUS(result));
+					exitstatus = 1;
+				} else if (WIFSIGNALED(result)) {
+					perror_msg("%s exited because of uncaught signal %d", args[0], WTERMSIG(result));
+					exitstatus = 1;
+				}
+			}
+		} 
+		else if (!S_ISDIR(st.st_mode)) {
+			error_msg("component %s is not an executable plain file", filename);
+			exitstatus = 1;
+		}
+
+		free(namelist[i]);
+		free(filename);
+	}
+	free(namelist);
+	
+	return(exitstatus);
+}