1 files changed, 97 insertions, 0 deletions
diff --git a/tbdiff-create/main.c b/tbdiff-create/main.c
new file mode 100644
index 0000000..d20feba
--- /dev/null
+++ b/tbdiff-create/main.c
@@ -0,0 +1,97 @@
+/*
+ *    Copyright (C) 2011-2012 Codethink Ltd.
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License Version 2 as
+ *    published by the Free Software Foundation.
+ *
+ *    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 <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include <unistd.h>
+
+#include <tbdiff/tbdiff.h>
+
+
+int
+main(int    argc,
+     char **argv)
+{
+	if(argc < 4) {
+		fprintf(stderr, "Usage: %s OUTPUT SOURCE_DIR TARGET_DIR.\n", argv[0]);
+		return EXIT_FAILURE;
+	}
+
+	size_t cwd_size = pathconf(".", _PC_PATH_MAX);
+	char   cwd_buff[cwd_size];
+	if(getcwd(cwd_buff, cwd_size) == NULL)
+		return EXIT_FAILURE;
+
+	tbd_stat_t *tstat[2];
+
+	tstat[0] = tbd_stat(argv[2]);
+	if(tstat[0] == NULL) {
+		fprintf(stderr, "Error: Unable to stat '%s'.\n", argv[2]);
+		return EXIT_FAILURE;
+	}
+
+	if(chdir(cwd_buff) != 0) {
+		fprintf(stderr, "Error: Unable to return to '%s'.\n", cwd_buff);
+		return EXIT_FAILURE;
+	}
+
+	tstat[1] = tbd_stat(argv[3]);
+	if(tstat[1] == NULL) {
+		fprintf(stderr, "Error: Unable to stat '%s'.\n", argv[3]);
+		return EXIT_FAILURE;
+	}
+
+	if (chdir(cwd_buff) != 0) {
+		fprintf(stderr, "Error: Unable to return to '%s'.\n", cwd_buff);
+		return EXIT_FAILURE;
+	}
+
+	FILE *fp = fopen(argv[1], "wb");
+	if(fp == NULL) {
+		fprintf(stderr, "ERROR: Unable to open patch for writing.\n");
+		return EXIT_FAILURE;
+	}
+
+	int err;
+	if((err = tbd_create(fp, tstat[0], tstat[1])) != 0) {
+		fclose(fp);	
+		tbd_stat_free(tstat[0]);
+		tbd_stat_free(tstat[1]);
+
+		remove(argv[1]);
+		fprintf(stderr, "Error: Failed to create tbdiff image (err=%d).\n", err);
+		switch (err) {
+		case TBD_ERROR_UNABLE_TO_CREATE_SOCKET_FILE:
+			fprintf(stderr, "%s directory contains Unix Sockets. "
+			        "%s cannot create sockets, please ensure no "
+			        "programs are using sockets in directory.\n",
+			        argv[3], argv[0]);
+			break;
+		default:
+			break;
+		}
+		return EXIT_FAILURE;
+	}
+
+	fclose(fp);
+	tbd_stat_free(tstat[0]);
+	tbd_stat_free(tstat[1]);
+
+	return EXIT_SUCCESS;
+}