udevadm: merge all udev tools into a single binary

1 files changed, 165 insertions, 0 deletions

diff --git a/udevadm.c b/udevadm.c
new file mode 100644
index 0000000000..24e4d991be
--- /dev/null
+++ b/udevadm.c
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2007 Kay Sievers <kay.sievers@vrfy.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 version 2 of the License.
+ * 
+ *	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.,
+ *	51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <errno.h>
+#include <getopt.h>
+
+#include "udev.h"
+
+static int verbose;
+
+#ifdef USE_LOG
+void log_message(int priority, const char *format, ...)
+{
+	va_list	args;
+
+	if (priority > udev_log_priority)
+		return;
+
+	va_start(args, format);
+	if (verbose) {
+		vprintf(format, args);
+		printf("\n");
+	} else
+		vsyslog(priority, format, args);
+	va_end(args);
+}
+#endif
+
+struct command {
+	const char *name;
+	int (*cmd)(int argc, char *argv[], char *envp[]);
+	const char *help;
+	int verbose;
+};
+
+static const struct command cmds[];
+
+static int version(int argc, char *argv[], char *envp[])
+{
+	printf("%s\n", UDEV_VERSION);
+	return 0;
+}
+
+static int help(int argc, char *argv[], char *envp[])
+{
+	const struct command *cmd;
+
+	printf("Usage: udev COMMAND [OPTIONS]\n");
+	for (cmd = cmds; cmd->name != NULL; cmd++)
+		printf("  %-12s %s\n", cmd->name, cmd->help);
+	printf("\n");
+	return 0;
+}
+
+static const struct command cmds[] = {
+	{
+		.name = "info",
+		.cmd = udevinfo,
+		.help = "query sysfs or the udev database",
+	},
+	{
+		.name = "trigger",
+		.cmd = udevtrigger,
+		.help = "request events from the kernel",
+	},
+	{
+		.name = "settle",
+		.cmd = udevsettle, "",
+		.help = "wait for the event queue to finish",
+	},
+	{
+		.name = "control",
+		.cmd = udevcontrol,
+		.help = "control the udev daemon",
+	},
+	{
+		.name = "monitor",
+		.cmd = udevmonitor,
+		.help = "listen to kernel and udev events",
+	},
+	{
+		.name = "test",
+		.cmd = udevtest,
+		.help = "simulation run",
+		.verbose = 1,
+	},
+	{
+		.name = "version",
+		.cmd = version,
+		.help = "print the version number",
+	},
+	{
+		.name = "help",
+		.cmd = help,
+		.help = "print this help text",
+	},
+	{}
+};
+
+int main(int argc, char *argv[], char *envp[])
+{
+	const char *command;
+	const char *pos;
+	const struct command *cmd;
+	int rc;
+
+	/* get binary or symlink name */
+	pos = strrchr(argv[0], '/');
+	if (pos != NULL)
+		command = &pos[1];
+	else
+		command = argv[0];
+
+	/* the trailing part of the binary or symlink name is the command */
+	if (strncmp(command, "udev", 4) == 0)
+		command = &command[4];
+
+	if (command == NULL || command[0] == '\0')
+		goto err_unknown;
+
+	/* udevadm itself needs to strip its name from the passed options */
+	if (strcmp(command, "adm") == 0) {
+		command = argv[1];
+		argv++;
+		argc--;
+	}
+
+	if (command == NULL || command[0] == '\0')
+		goto err_unknown;
+
+	/* find and execute command */
+	for (cmd = cmds; cmd->name != NULL; cmd++) {
+		if (strcmp(cmd->name, command) == 0) {
+			verbose = cmd->verbose;
+			rc = cmd->cmd(argc, argv, envp);
+			goto out;
+		}
+	}
+
+err_unknown:
+	fprintf(stderr, "unknown command, try help\n\n");
+	rc = 2;
+out:
+	return rc;
+}