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| author | Bruno Haible <bruno@clisp.org> | 2018-05-06 13:30:24 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2018-05-06 13:30:24 +0200 |
| commit | 22d459bb708adc2651f47e6ad877e4848c5319bd (patch) | |
| tree | ff94bba8f3c803315991e37114bcdf4bae09d2f5 /lib/sha256.h | |
| parent | c24c54ae211f0b482693394f71970b182120f2ef (diff) | |
| download | gnulib-22d459bb708adc2651f47e6ad877e4848c5319bd.tar.gz | |
af_alg: Fix bug with streams that are not at position 0.
* lib/af_alg.c (afalg_stream): Before sendfile, invoke fflush. Don't
assume that the stream is positioned at position 0.
* lib/af_alg.h (afalg_stream): Mention restriction regarding the state
of the stream.
* lib/md5.h (md5_stream): Likewise.
* lib/sha1.h (sha1_stream): Likewise.
* lib/sha256.h (sha256_stream, sha224_stream): Likewise.
* lib/sha512.h (sha512_stream, sha384_stream): Likewise.
* modules/crypto/af_alg (Depends-on): Add fflush, lseek.
Diffstat (limited to 'lib/sha256.h')
| -rw-r--r-- | lib/sha256.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/sha256.h b/lib/sha256.h index e3449864bb..19ed3ccd4d 100644 --- a/lib/sha256.h +++ b/lib/sha256.h @@ -89,8 +89,11 @@ extern void *sha256_buffer (const char *buffer, size_t len, void *resblock); extern void *sha224_buffer (const char *buffer, size_t len, void *resblock); # endif -/* Compute SHA256 (SHA224) message digest for bytes read from STREAM. The - resulting message digest number will be written into the 32 (28) bytes +/* Compute SHA256 (SHA224) message digest for bytes read from STREAM. + STREAM is an open file stream. Regular files are handled more efficiently. + The contents of STREAM from its current position to its end will be read. + The case that the last operation on STREAM was an 'ungetc' is not supported. + The resulting message digest number will be written into the 32 (28) bytes beginning at RESBLOCK. */ extern int sha256_stream (FILE *stream, void *resblock); extern int sha224_stream (FILE *stream, void *resblock); |