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05 April 2024, 19:32:26 UTC
Revision 897d28bcc23878b5d98b46f3903e3d2a302d8a01 authored by Junio C Hamano on 06 February 2021, 00:31:23 UTC, committed by Junio C Hamano on 06 February 2021, 00:31:23 UTC 
Merge branch 'ds/for-each-repo-noopfix' into maint
 
"git for-each-repo --config=<var> <cmd>" should not run <cmd> for
any repository when the configuration variable <var> is not defined
even once.

* ds/for-each-repo-noopfix:
  for-each-repo: do nothing on empty config
2 parent s 4fc7b22 + 6c62f01
Raw File
Tip revision: 897d28bcc23878b5d98b46f3903e3d2a302d8a01 authored by Junio C Hamano on 06 February 2021, 00:31:23 UTC
Merge branch 'ds/for-each-repo-noopfix' into maint
Tip revision: 897d28b
sha1dc_git.c 
#include "cache.h"

#ifdef DC_SHA1_EXTERNAL
/*
 * Same as SHA1DCInit, but with default save_hash=0
 */
void git_SHA1DCInit(SHA1_CTX *ctx)
{
	SHA1DCInit(ctx);
	SHA1DCSetSafeHash(ctx, 0);
}
#endif

/*
 * Same as SHA1DCFinal, but convert collision attack case into a verbose die().
 */
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",
	    hash_to_hex_algop(hash, &hash_algos[GIT_HASH_SHA1]));
}

/*
 * Same as SHA1DCUpdate, but adjust types to match git's usual interface.
 */
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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