diff options
Diffstat (limited to 'src/usr.bin/signify/zsig.c')
| -rw-r--r-- | src/usr.bin/signify/zsig.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/usr.bin/signify/zsig.c b/src/usr.bin/signify/zsig.c index e3533fd..ca76b5c 100644 --- a/src/usr.bin/signify/zsig.c +++ b/src/usr.bin/signify/zsig.c @@ -1,4 +1,4 @@ -/* $OpenBSD: zsig.c,v 1.18 2019/12/22 06:37:25 espie Exp $ */ +/* $OpenBSD: zsig.c,v 1.19 2023/04/29 10:08:18 espie Exp $ */ /* * Copyright (c) 2016 Marc Espie <espie@openbsd.org> * @@ -160,6 +160,8 @@ copy_blocks(int fdout, int fdin, const char *sha, const char *endsha, if (more == 0) break; } + if (n == 0) + break; SHA512_256Data(buffer, n, output); if (endsha - sha < SHA512_256_DIGEST_STRING_LENGTH-1) errx(4, "signature truncated"); @@ -172,6 +174,8 @@ copy_blocks(int fdout, int fdin, const char *sha, const char *endsha, if (n != bufsize) break; } + if (endsha != sha) + errx(4, "file truncated"); free(buffer); } |