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-rw-r--r--ubi-utils/new-utils/src/ubiupdatevol.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/ubi-utils/new-utils/src/ubiupdatevol.c b/ubi-utils/new-utils/src/ubiupdatevol.c
index 5eeaa3c..c83731c 100644
--- a/ubi-utils/new-utils/src/ubiupdatevol.c
+++ b/ubi-utils/new-utils/src/ubiupdatevol.c
@@ -157,10 +157,15 @@ static int parse_opt(int argc, char * const argv[])
args.node = argv[optind];
args.img = argv[optind + 1];
- if (strcmp(args.img, "-") == 0)
- args.use_stdin = 1;
- if (args.use_stdin && !args.size)
- return errmsg("file size must be specified if input is stdin");
+ if (args.img && args.truncate)
+ return errmsg("You can't truncate and specify an image (use -h for help)");
+
+ if (args.img && !args.truncate) {
+ if (strcmp(args.img, "-") == 0)
+ args.use_stdin = 1;
+ if (args.use_stdin && !args.size)
+ return errmsg("file size must be specified if input is stdin");
+ }
return 0;
}