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author | DJ Delorie <dj@redhat.com> | 2011-08-12 18:44:43 +0000 |
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committer | DJ Delorie <dj@redhat.com> | 2011-08-12 18:44:43 +0000 |
commit | 091c2a968ae5dd0a46174ffa0dfcd61a2423ba1f (patch) | |
tree | 1539e0f7496302ce40ca5ea1dccd6961121e4e82 /libiberty | |
parent | d20c1c3feaf11ec83a0cc70226444a0be9533ff9 (diff) | |
download | binutils-091c2a968ae5dd0a46174ffa0dfcd61a2423ba1f.zip binutils-091c2a968ae5dd0a46174ffa0dfcd61a2423ba1f.tar.gz binutils-091c2a968ae5dd0a46174ffa0dfcd61a2423ba1f.tar.bz2 |
merge from gcc
Diffstat (limited to 'libiberty')
-rw-r--r-- | libiberty/ChangeLog | 4 | ||||
-rw-r--r-- | libiberty/md5.c | 16 |
2 files changed, 14 insertions, 6 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index fe9da85..eabc69d 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -1,3 +1,7 @@ +2011-08-12 Steve Ellcey <sje@cup.hp.com> + + * md5.c (md5_read_ctx): Handle mis-aligned resbuf pointer. + 2011-08-06 Uros Bizjak <ubizjak@gmail.com> * testsuite/test-expandargv.c (writeout_test): Check result of fwrite. diff --git a/libiberty/md5.c b/libiberty/md5.c index 9de9d88..11920e1 100644 --- a/libiberty/md5.c +++ b/libiberty/md5.c @@ -76,15 +76,19 @@ md5_init_ctx (struct md5_ctx *ctx) /* Put result from CTX in first 16 bytes following RESBUF. The result must be in little endian byte order. - IMPORTANT: On some systems it is required that RESBUF is correctly - aligned for a 32 bits value. */ + IMPORTANT: RESBUF may not be aligned as strongly as MD5_UNIT32 so we + put things in a local (aligned) buffer first, then memcpy into RESBUF. */ void * md5_read_ctx (const struct md5_ctx *ctx, void *resbuf) { - ((md5_uint32 *) resbuf)[0] = SWAP (ctx->A); - ((md5_uint32 *) resbuf)[1] = SWAP (ctx->B); - ((md5_uint32 *) resbuf)[2] = SWAP (ctx->C); - ((md5_uint32 *) resbuf)[3] = SWAP (ctx->D); + md5_uint32 buffer[4]; + + buffer[0] = SWAP (ctx->A); + buffer[1] = SWAP (ctx->B); + buffer[2] = SWAP (ctx->C); + buffer[3] = SWAP (ctx->D); + + memcpy (resbuf, buffer, 16); return resbuf; } |