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0c3d2d9430
In particular glibc's crypt will return NULL / errno == ENOSYS and other implementations might do that in future too. Reported by: David Hill
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* virt-sysprep - interface to crypt(3)
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* Copyright (C) 2013 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#if HAVE_CRYPT_H
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#include <crypt.h>
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#endif
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#include <caml/alloc.h>
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#include <caml/memory.h>
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#include <caml/mlvalues.h>
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#include <caml/unixsupport.h>
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#pragma GCC diagnostic ignored "-Wmissing-prototypes"
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value
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virt_customize_crypt (value keyv, value saltv)
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{
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CAMLparam2 (keyv, saltv);
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CAMLlocal1 (rv);
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char *r;
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/* Note that crypt returns a pointer to a statically allocated
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* buffer in glibc. For this and other reasons, this function
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* is not thread safe.
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*/
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r = crypt (String_val (keyv), String_val (saltv));
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if (r == NULL)
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unix_error (errno, (char *) "crypt", Nothing);
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rv = caml_copy_string (r);
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CAMLreturn (rv);
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}
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