imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 115 insertions, 0 deletions

diff --git a/release/src/router/busybox/findutils/xargs.c b/release/src/router/busybox/findutils/xargs.c
new file mode 100644
index 00000000..2b18f8f2
--- /dev/null
+++ b/release/src/router/busybox/findutils/xargs.c
@@ -0,0 +1,115 @@
+/*
+ * Mini xargs implementation for busybox
+ * Only "-prt" options are supported in this version of xargs.
+ *
+ * (C) 2002 by Vladimir Oleynik <dzo@simtreas.ru>
+ *
+ * Special thanks Mark Whitley for stimul to rewrote :)
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include "busybox.h"
+
+
+/*
+   This function have special algorithm.
+   Don`t use fork and include to main!
+*/
+static void xargs_exec(char * const * args)
+{
+	int p;
+	int common[4];  /* shared vfork stack */
+
+	common[0] = 0;
+	if ((p = vfork()) >= 0) {
+		if (p == 0) {
+			/* vfork -- child */
+			execvp(args[0], args);
+			common[0] = errno; /* set error to shared stack */
+			_exit(1);
+		} else {
+			/* vfork -- parent */
+			wait(NULL);
+			if(common[0]) {
+				errno = common[0];
+				bb_perror_msg_and_die("%s", args[0]);
+			}
+		}
+	} else {
+		bb_perror_msg_and_die("vfork");
+	}
+}
+
+int xargs_main(int argc, char **argv)
+{
+	char *file_to_act_on;
+	char **args;
+	int  i, a;
+	char flg_vi;            /* verbose |& interactive */
+	char flg_no_empty;
+
+	bb_opt_complementaly = "pt";
+	a = bb_getopt_ulflags(argc, argv, "tpr");
+	flg_vi = a & 3;
+	flg_no_empty = a & 4;
+
+	a = argc - optind;
+	argv += optind;
+	if(a==0) {
+		/* default behavior is to echo all the filenames */
+		*argv = "/bin/echo";
+		a++;
+	}
+	/* allocating pointers for execvp: a*arg, arg from stdin, NULL */
+	args = xcalloc(a + 3, sizeof(char *));
+
+	/* Store the command to be executed (taken from the command line) */
+	for (i = 0; i < a; i++)
+		args[i] = *argv++;
+
+	/* Now, read in one line at a time from stdin, and store this 
+	 * line to be used later as an argument to the command */
+	while ((file_to_act_on = bb_get_chomped_line_from_file(stdin)) != NULL) {
+		if(file_to_act_on[0] != 0 || flg_no_empty == 0) {
+			args[a] = file_to_act_on[0] ? file_to_act_on : NULL;
+			if(flg_vi) {
+				for(i=0; args[i]; i++) {
+					if(i)
+						fputc(' ', stderr);
+					fputs(args[i], stderr);
+				}
+				fputs(((flg_vi & 2) ? " ?..." : "\n"), stderr);
+			}
+			if((flg_vi & 2) == 0 || bb_ask_confirmation() != 0 ) {
+				xargs_exec(args);
+			}
+		}
+		/* clean up */
+		free(file_to_act_on);
+	}
+#ifdef CONFIG_FEATURE_CLEAN_UP
+	free(args);
+#endif
+	return 0;
+}