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-rw-r--r--usr/gen_init_cpio.c33
1 files changed, 21 insertions, 12 deletions
diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c
index 61230532fef1..edcdb8abfa31 100644
--- a/usr/gen_init_cpio.c
+++ b/usr/gen_init_cpio.c
@@ -27,6 +27,7 @@
static unsigned int offset;
static unsigned int ino = 721;
static time_t default_mtime;
+static bool do_file_mtime;
static bool do_csum = false;
struct file_handler {
@@ -329,6 +330,7 @@ static int cpio_mkfile(const char *name, const char *location,
int file;
int retval;
int rc = -1;
+ time_t mtime;
int namesize;
unsigned int i;
uint32_t csum = 0;
@@ -347,16 +349,21 @@ static int cpio_mkfile(const char *name, const char *location,
goto error;
}
- if (buf.st_mtime > 0xffffffff) {
- fprintf(stderr, "%s: Timestamp exceeds maximum cpio timestamp, clipping.\n",
- location);
- buf.st_mtime = 0xffffffff;
- }
+ if (do_file_mtime) {
+ mtime = default_mtime;
+ } else {
+ mtime = buf.st_mtime;
+ if (mtime > 0xffffffff) {
+ fprintf(stderr, "%s: Timestamp exceeds maximum cpio timestamp, clipping.\n",
+ location);
+ mtime = 0xffffffff;
+ }
- if (buf.st_mtime < 0) {
- fprintf(stderr, "%s: Timestamp negative, clipping.\n",
- location);
- buf.st_mtime = 0;
+ if (mtime < 0) {
+ fprintf(stderr, "%s: Timestamp negative, clipping.\n",
+ location);
+ mtime = 0;
+ }
}
if (buf.st_size > 0xffffffff) {
@@ -387,7 +394,7 @@ static int cpio_mkfile(const char *name, const char *location,
(long) uid, /* uid */
(long) gid, /* gid */
nlinks, /* nlink */
- (long) buf.st_mtime, /* mtime */
+ (long) mtime, /* mtime */
size, /* filesize */
3, /* major */
1, /* minor */
@@ -536,8 +543,9 @@ static void usage(const char *prog)
"file /sbin/kinit /usr/src/klibc/kinit/kinit 0755 0 0\n"
"\n"
"<timestamp> is time in seconds since Epoch that will be used\n"
- "as mtime for symlinks, special files and directories. The default\n"
- "is to use the current time for these entries.\n"
+ "as mtime for symlinks, directories, regular and special files.\n"
+ "The default is to use the current time for all files, but\n"
+ "preserve modification time for regular files.\n"
"-c: calculate and store 32-bit checksums for file data.\n",
prog);
}
@@ -594,6 +602,7 @@ int main (int argc, char *argv[])
usage(argv[0]);
exit(1);
}
+ do_file_mtime = true;
break;
case 'c':
do_csum = true;