diff options
Diffstat (limited to 'lib/shadowmem.c')
| -rw-r--r-- | lib/shadowmem.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/lib/shadowmem.c b/lib/shadowmem.c new file mode 100644 index 0000000..8989598 --- /dev/null +++ b/lib/shadowmem.c @@ -0,0 +1,89 @@ +/* + * Copyright (c) 1990 - 1994, Julianne Frances Haugh + * Copyright (c) 1996 - 2000, Marek Michałkiewicz + * Copyright (c) 2001 , Michał Moskal + * Copyright (c) 2005 , Tomasz Kłoczko + * Copyright (c) 2007 - 2013, Nicolas François + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the copyright holders or contributors may not be used to + * endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <config.h> + +#ident "$Id$" + +#include "prototypes.h" +#include "defines.h" +#include <shadow.h> +#include <stdio.h> +#include "shadowio.h" + +/*@null@*/ /*@only@*/struct spwd *__spw_dup (const struct spwd *spent) +{ + struct spwd *sp; + + sp = (struct spwd *) malloc (sizeof *sp); + if (NULL == sp) { + return NULL; + } + /* The libc might define other fields. They won't be copied. */ + memset (sp, 0, sizeof *sp); + sp->sp_lstchg = spent->sp_lstchg; + sp->sp_min = spent->sp_min; + sp->sp_max = spent->sp_max; + sp->sp_warn = spent->sp_warn; + sp->sp_inact = spent->sp_inact; + sp->sp_expire = spent->sp_expire; + sp->sp_flag = spent->sp_flag; + /*@-mustfreeonly@*/ + sp->sp_namp = strdup (spent->sp_namp); + /*@=mustfreeonly@*/ + if (NULL == sp->sp_namp) { + free(sp); + return NULL; + } + /*@-mustfreeonly@*/ + sp->sp_pwdp = strdup (spent->sp_pwdp); + /*@=mustfreeonly@*/ + if (NULL == sp->sp_pwdp) { + free(sp->sp_namp); + free(sp); + return NULL; + } + + return sp; +} + +void spw_free (/*@out@*/ /*@only@*/struct spwd *spent) +{ + free (spent->sp_namp); + if (NULL != spent->sp_pwdp) { + memzero (spent->sp_pwdp, strlen (spent->sp_pwdp)); + free (spent->sp_pwdp); + } + free (spent); +} + |