https://github.com/git/git
Revision 8dc1d0bf64ce84030a1a13ea64343f816dba9e27 authored by Junio C Hamano on 18 October 2017, 05:19:00 UTC, committed by Junio C Hamano on 18 October 2017, 05:19:00 UTC
Code cmp.std.c nitpick.

* mh/for-each-string-list-item-empty-fix:
  for_each_string_list_item: avoid undefined behavior for empty list
2 parent s 181f145 + ac7da78
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Tip revision: 8dc1d0bf64ce84030a1a13ea64343f816dba9e27 authored by Junio C Hamano on 18 October 2017, 05:19:00 UTC
Merge branch 'mh/for-each-string-list-item-empty-fix' into maint
Tip revision: 8dc1d0b
sha1dc_git.c
/*
 * This code is included at the end of sha1dc/sha1.c with the
 * SHA1DC_CUSTOM_TRAILING_INCLUDE_SHA1_C macro.
 */

void git_SHA1DCFinal(unsigned char hash[20], SHA1_CTX *ctx)
{
	if (!SHA1DCFinal(hash, ctx))
		return;
	die("SHA-1 appears to be part of a collision attack: %s",
	    sha1_to_hex(hash));
}

void git_SHA1DCUpdate(SHA1_CTX *ctx, const void *vdata, unsigned long len)
{
	const char *data = vdata;
	/* We expect an unsigned long, but sha1dc only takes an int */
	while (len > INT_MAX) {
		SHA1DCUpdate(ctx, data, INT_MAX);
		data += INT_MAX;
		len -= INT_MAX;
	}
	SHA1DCUpdate(ctx, data, len);
}
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