1 files changed, 139 insertions, 0 deletions
diff --git a/src/bios_dev_name.c b/src/bios_dev_name.c
new file mode 100644
index 0000000..ce13742
--- /dev/null
+++ b/src/bios_dev_name.c
@@ -0,0 +1,139 @@
+/*
+ *  Copyright (c) 2006 Dell, Inc.
+ *  by Matt Domsch <Matt_Domsch@dell.com>
+ *  Licensed under the GNU General Public license, version 2.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+
+#include "libbiosdevname.h"
+#include "bios_dev_name.h"
+
+static struct bios_dev_name_opts opts;
+
+static void usage(void)
+{
+	fprintf(stderr, "Usage:  biosdevname [options] [args]...\n");
+	fprintf(stderr, " Options:\n");
+	fprintf(stderr, "   -i        or --interface           treat [args] as ethernet devs\n");
+	fprintf(stderr, "   -d        or --debug               enable debugging\n");
+	fprintf(stderr, "   -n        or --nosort              don't sort the PCI device list breadth-first\n");
+	fprintf(stderr, "   --policy [kernelnames | all_ethN | all_names | embedded_ethN_slots_names]\n");
+	fprintf(stderr, " Example:  biosdevname -i eth0\n");
+	fprintf(stderr, "  returns: eth0\n");
+	fprintf(stderr, "  when the BIOS name and kernel name are both eth0.\n");
+	fprintf(stderr, " --nosort implies --policy kernelnames.\n");
+	fprintf(stderr, " You must be root to run this, as it must read from /dev/mem.\n");
+}
+
+static int
+set_policy(const char *arg)
+{
+	int rc = all_ethN;
+	if (!strncmp("kernelnames", arg, sizeof("kernelnames")))
+		rc = kernelnames;
+	else if (!strncmp("all_ethN", arg, sizeof("all_ethN")))
+		rc = all_ethN;
+	else if (!strncmp("all_names", arg, sizeof("all_names")))
+		rc = all_names;
+	else if (!strncmp("embedded_ethN_slots_names", arg, sizeof("embedded_ethN_slots_names")))
+		rc = embedded_ethN_slots_names;
+	return rc;
+}
+
+static void
+parse_opts(int argc, char **argv)
+{
+	int c;
+	int option_index = 0;
+
+	while (1) {
+		static struct option long_options[] =
+			/* name, has_arg, flag, val */
+		{
+			{"debug",             no_argument, 0, 'd'},
+			{"interface",         no_argument, 0, 'i'},
+			{"nosort",            no_argument, 0, 'n'},
+			{"policy",      required_argument, 0, 'p'},
+			{0, 0, 0, 0}
+		};
+		c = getopt_long(argc, argv,
+				"dinp:",
+				long_options, &option_index);
+		if (c == -1)
+			break;
+		switch(c) {
+		case 'd':
+			opts.debug = 1;
+			break;
+		case 'i':
+			opts.interface = 1;
+			break;
+		case 'n':
+			opts.sortroutine = nosort;
+			break;
+		case 'p':
+			opts.namingpolicy = set_policy(optarg);
+			break;
+		default:
+			usage();
+			exit(1);
+		}
+	}
+
+	if (optind < argc) {
+		opts.argc = argc-optind;
+		opts.argv = &argv[optind];
+		opts.optind = optind;
+	}
+
+	if (opts.sortroutine == nosort)
+		opts.namingpolicy = kernelnames;
+}
+
+int main(int argc, char *argv[])
+{
+	int i, rc=0;
+	char *name;
+	void *cookie = NULL;
+
+	parse_opts(argc, argv);
+	cookie = setup_bios_devices(opts.sortroutine, opts.namingpolicy);
+	if (!cookie) {
+		usage();
+		rc = 1;
+		goto out;
+	}
+
+	if (opts.debug) {
+		unparse_bios_devices(cookie);
+		rc = 0;
+		goto out_cleanup;
+	}
+
+
+	if (!opts.interface) {
+		fprintf(stderr, "Unknown device type, try passing an option like -i\n");
+		rc = 1;
+		goto out_usage;
+	}
+
+	for (i=0; i<opts.argc; i++) {
+		name = kern_to_bios(cookie, opts.argv[i]);
+		if (name) {
+			printf("%s\n", name);
+		}
+		else
+			rc |= 2; /* one or more given devices weren't found */
+	}
+	goto out_cleanup;
+
+ out_usage:
+	usage();
+ out_cleanup:
+	cleanup_bios_devices(cookie);
+ out:
+	return rc;
+}