X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fstaging%2Fmkresin.git;a=blobdiff_plain;f=tools%2Ffirmware-utils%2Fsrc%2Fmkdlinkfw-lib.c;h=b3f3f41348527f05e86509cedccb892149a974b2;hp=a661c0bc821fc132d847098ddba504a21aa05bbb;hb=0e78af22d95d91f7c2fdfc66fac993c6c5d349d8;hpb=f4aa9d8839958c39d24d7cca3d3215efad98a1e2

diff --git a/tools/firmware-utils/src/mkdlinkfw-lib.c b/tools/firmware-utils/src/mkdlinkfw-lib.c
index a661c0bc82..b3f3f41348 100644
--- a/tools/firmware-utils/src/mkdlinkfw-lib.c
+++ b/tools/firmware-utils/src/mkdlinkfw-lib.c
@@ -34,9 +34,24 @@ extern char *progname;
 
 uint32_t jboot_timestamp(void)
 {
-	time_t rawtime;
-	time(&rawtime);
-	return (((uint32_t) rawtime) - TIMESTAMP_MAGIC) >> 2;
+	char *env = getenv("SOURCE_DATE_EPOCH");
+	char *endptr = env;
+	time_t fixed_timestamp = -1;
+	errno = 0;
+
+	if (env && *env) {
+		fixed_timestamp = strtoull(env, &endptr, 10);
+
+		if (errno || (endptr && *endptr != '\0')) {
+			fprintf(stderr, "Invalid SOURCE_DATE_EPOCH");
+			fixed_timestamp = -1;
+		}
+	}
+
+	if (fixed_timestamp == -1)
+		time(&fixed_timestamp);
+
+	return (((uint32_t) fixed_timestamp) - TIMESTAMP_MAGIC) >> 2;
 }
 
 uint16_t jboot_checksum(uint16_t start_val, uint16_t *data, int size)
@@ -82,6 +97,7 @@ int read_to_buf(const struct file_info *fdata, char *buf)
 {
 	FILE *f;
 	int ret = EXIT_FAILURE;
+	size_t read;
 
 	f = fopen(fdata->file_name, "r");
 	if (f == NULL) {
@@ -89,9 +105,8 @@ int read_to_buf(const struct file_info *fdata, char *buf)
 		goto out;
 	}
 
-	errno = 0;
-	fread(buf, fdata->file_size, 1, f);
-	if (errno != 0) {
+	read = fread(buf, fdata->file_size, 1, f);
+	if (ferror(f) || read != 1) {
 		ERRS("unable to read from file \"%s\"", fdata->file_name);
 		goto out_close;
 	}