[tools] fix segfault when using the maxlen argument (#4359)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16641 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/tools/firmware-utils/src/trx.c b/tools/firmware-utils/src/trx.c
index 1ad3de5..5e5e77a 100644 (file)
--- a/tools/firmware-utils/src/trx.c
+++ b/tools/firmware-utils/src/trx.c
@@ -172,6 +172,7 @@ int main(int argc, char **argv)
                                        fprintf(stderr, "realloc failed");
                                        return EXIT_FAILURE;
                                }
+                               p = (struct trx_header *) buf;
                                break;
                        case 'a':
                                errno = 0;