0c69794138
These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#if HAVE_GCRYPT
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#include <gcrypt.h>
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#include "gcrypt-util.h"
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#include "hexdecoct.h"
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void initialize_libgcrypt(bool secmem) {
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const char *p;
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if (gcry_control(GCRYCTL_INITIALIZATION_FINISHED_P))
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return;
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p = gcry_check_version("1.4.5");
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assert(p);
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/* Turn off "secmem". Clients which wish to make use of this
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* feature should initialize the library manually */
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if (!secmem)
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gcry_control(GCRYCTL_DISABLE_SECMEM);
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gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
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}
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int string_hashsum(const char *s, size_t len, int md_algorithm, char **out) {
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_cleanup_(gcry_md_closep) gcry_md_hd_t md = NULL;
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size_t hash_size;
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void *hash;
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char *enc;
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initialize_libgcrypt(false);
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hash_size = gcry_md_get_algo_dlen(md_algorithm);
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assert(hash_size > 0);
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gcry_md_open(&md, md_algorithm, 0);
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if (!md)
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return -EIO;
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gcry_md_write(md, s, len);
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hash = gcry_md_read(md, 0);
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if (!hash)
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return -EIO;
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enc = hexmem(hash, hash_size);
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if (!enc)
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return -ENOMEM;
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*out = enc;
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return 0;
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}
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#endif
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