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(md5_stream): Check for read failure and return

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indication of success rather than second argument.
This commit is contained in:
Jim Meyering
1995-07-21 04:46:50 +00:00
parent 855741c7cb
commit 574cc98b23
1 changed files with 7 additions and 3 deletions
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lib/md5.c
+7 -3
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@@ -69,7 +69,7 @@ md5_read_ctx (ctx, resbuf)
/* Compute MD5 message digest for bytes read from STREAM. The
resulting message digest number will be written into the 16 bytes
beginning at RESBLOCK. */
void *
int
md5_stream (stream, resblock)
FILE *stream;
void *resblock;
@@ -104,6 +104,8 @@ md5_stream (stream, resblock)
sum += n;
}
while (sum < BLOCKSIZE && n != 0);
if (n == 0 && ferror (stream))
return 1;
/* RFC 1321 specifies the possible length of the file up to 2^64 bits.
Here we only compute the number of bytes. Do a double word
@@ -135,13 +137,15 @@ md5_stream (stream, resblock)
/* Put the 64-bit file length in *bits* at the end of the buffer. */
*(md5_uint32 *) &buffer[sum + pad] = SWAP (len[0] << 3);
*(md5_uint32 *) &buffer[sum + pad + 4] = SWAP ((len[1] << 3) | (len[0] >> 29));
*(md5_uint32 *) &buffer[sum + pad + 4] = SWAP ((len[1] << 3)
| (len[0] >> 29));
/* Process last bytes. */
md5_process_block (buffer, sum + pad + 8, &ctx);
/* Construct result in desired memory. */
return md5_read_ctx (&ctx, resblock);
md5_read_ctx (&ctx, resblock);
return 0;
}
/* Compute MD5 message digest for LEN bytes beginning at BUFFER. The