diff options
Diffstat (limited to 'tools/env/fw_env.c')
| -rw-r--r-- | tools/env/fw_env.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c index 6b0dcaa943..d2b167deb9 100644 --- a/tools/env/fw_env.c +++ b/tools/env/fw_env.c @@ -1294,6 +1294,18 @@ static int check_device_config(int dev) struct stat st; int fd, rc = 0; + if (DEVOFFSET(dev) % DEVESIZE(dev) != 0) { + fprintf(stderr, "Environment does not start on erase block boundary\n"); + errno = EINVAL; + return -1; + } + + if (ENVSIZE(dev) > ENVSECTORS(dev) * DEVESIZE(dev)) { + fprintf(stderr, "Environment does not fit into available sectors\n"); + errno = EINVAL; + return -1; + } + fd = open(DEVNAME(dev), O_RDONLY); if (fd < 0) { fprintf(stderr, |