firmware-utils: honor env SOURCE_DATE_EPOCH

[openwrt/openwrt.git] / tools / firmware-utils / src / tplink-safeloader.c

diff --git a/tools/firmware-utils/src/tplink-safeloader.c b/tools/firmware-utils/src/tplink-safeloader.c
index fd4c2ab70d731447b27229357192c448b5e8c1df..d2a1cb69ed317ec32754ce7eacfb56269c96098f 100644 (file)
--- a/tools/firmware-utils/src/tplink-safeloader.c
+++ b/tools/firmware-utils/src/tplink-safeloader.c
@@ -709,6 +709,20 @@ static void free_image_partition(struct image_partition_entry entry) {
        free(entry.data);
 }
 
+static time_t source_date_epoch = -1;
+static void set_source_date_epoch() {
+       char *env = getenv("SOURCE_DATE_EPOCH");
+       char *endptr = env;
+       errno = 0;
+        if (env && *env) {
+               source_date_epoch = strtoull(env, &endptr, 10);
+               if (errno || (endptr && *endptr != '\0')) {
+                       fprintf(stderr, "Invalid SOURCE_DATE_EPOCH");
+                       exit(1);
+               }
+        }
+}
+
 /** Generates the partition-table partition */
 static struct image_partition_entry make_partition_table(const struct flash_partition_entry *p) {
        struct image_partition_entry entry = alloc_image_partition("partition-table", 0x800);
@@ -752,7 +766,9 @@ static struct image_partition_entry make_soft_version(uint32_t rev) {
 
        time_t t;
 
-       if (time(&t) == (time_t)(-1))
+       if (source_date_epoch != -1)
+               t = source_date_epoch;
+       else if (time(&t) == (time_t)(-1))
                error(1, errno, "time");
 
        struct tm *tm = localtime(&t);
@@ -1105,6 +1121,7 @@ int main(int argc, char *argv[]) {
        bool add_jffs2_eof = false, sysupgrade = false;
        unsigned rev = 0;
        const struct device_info *info;
+       set_source_date_epoch();
 
        while (true) {
                int c;