From 2cb7e0aaedad73b076ea18c6900b0e86c5760d79 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 15:00:47 +0200 Subject: Adding upstream version 247.3. Signed-off-by: Daniel Baumann --- src/basic/gcrypt-util.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 src/basic/gcrypt-util.c (limited to 'src/basic/gcrypt-util.c') diff --git a/src/basic/gcrypt-util.c b/src/basic/gcrypt-util.c new file mode 100644 index 0000000..bf0d210 --- /dev/null +++ b/src/basic/gcrypt-util.c @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#if HAVE_GCRYPT + +#include "gcrypt-util.h" +#include "hexdecoct.h" + +void initialize_libgcrypt(bool secmem) { + if (gcry_control(GCRYCTL_INITIALIZATION_FINISHED_P)) + return; + + assert_se(gcry_check_version("1.4.5")); + + /* Turn off "secmem". Clients which wish to make use of this + * feature should initialize the library manually */ + if (!secmem) + gcry_control(GCRYCTL_DISABLE_SECMEM); + gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0); +} + +int string_hashsum(const char *s, size_t len, int md_algorithm, char **out) { + _cleanup_(gcry_md_closep) gcry_md_hd_t md = NULL; + size_t hash_size; + void *hash; + char *enc; + + initialize_libgcrypt(false); + + hash_size = gcry_md_get_algo_dlen(md_algorithm); + assert(hash_size > 0); + + gcry_md_open(&md, md_algorithm, 0); + if (!md) + return -EIO; + + gcry_md_write(md, s, len); + + hash = gcry_md_read(md, 0); + if (!hash) + return -EIO; + + enc = hexmem(hash, hash_size); + if (!enc) + return -ENOMEM; + + *out = enc; + return 0; +} +#endif -- cgit v1.2.3