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Don't overflow MD5 server hostkey

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Use SHA_DIGEST_LENGTH and MD5_DIGEST_LENGTH in memcpy instead of hardcoded
values. An incorrect value was used for MD5.
This commit is contained in:
Tor Arntsen 2010-06-23 11:15:34 +02:00 committed by Peter Stuge
parent 7861ae8e4e
commit f9c0a4a95a
1 changed files with 2 additions and 2 deletions
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4
src/libgcrypt.h
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@ -63,7 +63,7 @@
#define libssh2_sha1_init(ctx) gcry_md_open (ctx, GCRY_MD_SHA1, 0);
#define libssh2_sha1_update(ctx, data, len) gcry_md_write (ctx, data, len)
#define libssh2_sha1_final(ctx, out) \
memcpy (out, gcry_md_read (ctx, 0), 20), gcry_md_close (ctx)
memcpy (out, gcry_md_read (ctx, 0), SHA_DIGEST_LENGTH), gcry_md_close (ctx)
#define libssh2_sha1(message, len, out) \
gcry_md_hash_buffer (GCRY_MD_SHA1, out, message, len)
@ -71,7 +71,7 @@
#define libssh2_md5_init(ctx) gcry_md_open (ctx, GCRY_MD_MD5, 0);
#define libssh2_md5_update(ctx, data, len) gcry_md_write (ctx, data, len)
#define libssh2_md5_final(ctx, out) \
memcpy (out, gcry_md_read (ctx, 0), 20), gcry_md_close (ctx)
memcpy (out, gcry_md_read (ctx, 0), MD5_DIGEST_LENGTH), gcry_md_close (ctx)
#define libssh2_md5(message, len, out) \
gcry_md_hash_buffer (GCRY_MD_MD5, out, message, len)