From 405d2830431742ca156833edd1f868ede015c83b Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 21 Nov 2008 05:02:02 +0100 Subject: [PATCH] vol_id: if regular files are probed, use stat() for the size value --- extras/volume_id/vol_id.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/extras/volume_id/vol_id.c b/extras/volume_id/vol_id.c index a50560c0..889bd348 100644 --- a/extras/volume_id/vol_id.c +++ b/extras/volume_id/vol_id.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -214,9 +215,17 @@ int main(int argc, char *argv[]) } if (size == 0) { - if (ioctl(fd, BLKGETSIZE64, &size) != 0) - size = 0; - info(udev_ctx, "BLKGETSIZE64=%" PRIu64 " (%" PRIu64 "GB)\n", size, size >> 30); + if (ioctl(fd, BLKGETSIZE64, &size) == 0) { + info(udev_ctx, "BLKGETSIZE64=%" PRIu64 " (%" PRIu64 "GB)\n", size, size >> 30); + } else { + struct stat statbuf; + + if (fstat(fd, &statbuf) == 0 && S_ISREG(statbuf.st_mode)) + size = statbuf.st_size; + else + size = 0; + info(udev_ctx, "stat=%" PRIu64 " (%" PRIu64 "GB)\n", size, size >> 30); + } } /* try to drop all privileges before reading disk content */ -- 2.39.5