firmware-utils: honor env SOURCE_DATE_EPOCH

[openwrt/staging/wigyori.git] / tools / firmware-utils / src / addpattern.c

diff --git a/tools/firmware-utils/src/addpattern.c b/tools/firmware-utils/src/addpattern.c
index 2ecc7ffd756131d9d2856c06a4a54cabaec8b9c0..9bc48653356291c1568e020a6f5bcdc35822fb09 100644 (file)
--- a/tools/firmware-utils/src/addpattern.c
+++ b/tools/firmware-utils/src/addpattern.c
@@ -58,6 +58,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 #include <time.h>
 #include <unistd.h>
 #include <sys/stat.h>
@@ -141,6 +142,20 @@ void usage(void)
        exit(EXIT_FAILURE);
 }
 
+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);
+               }
+        }
+}
+
 struct board_info *find_board(char *id)
 {
        struct board_info *board;
@@ -273,7 +288,10 @@ int main(int argc, char **argv)
                usage();
        }
 
-       if (time(&t) == (time_t)(-1)) {
+       set_source_date_epoch();
+       if (source_date_epoch != -1) {
+               t = source_date_epoch;
+       } else if ((time(&t) == (time_t)(-1))) {
                fprintf(stderr, "time call failed\n");
                return EXIT_FAILURE;
        }