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/*
Unix SMB/CIFS implementation.
replacement routines for broken systems
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Jelmer Vernooij 2005-2008
** NOTE! The following LGPL license applies to the replace
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <sys/types.h>
#include <string.h>
#include <pwd.h>
#include "util.h"
/* glibc doesn't have strlcpy, strlcat. Ensure we do. JRA. We
* don't link to libreplace so need them here. */
/* like strncpy but does not 0 fill the buffer and always null
* terminates. bufsize is the size of the destination buffer */
#ifndef HAVE_STRLCPY
size_t strlcpy(char *d, const char *s, size_t bufsize)
{
size_t len = strlen(s);
size_t ret = len;
if (bufsize <= 0) return 0;
if (len >= bufsize) len = bufsize-1;
memcpy(d, s, len);
d[len] = 0;
return ret;
}
#endif
/* like strncat but does not 0 fill the buffer and always null
* terminates. bufsize is the length of the buffer, which should
* be one more than the maximum resulting string length */
#ifndef HAVE_STRLCAT
size_t strlcat(char *d, const char *s, size_t bufsize)
{
size_t len1 = strlen(d);
size_t len2 = strlen(s);
size_t ret = len1 + len2;
if (len1+len2 >= bufsize) {
if (bufsize < (len1+1)) {
return ret;
}
len2 = bufsize - (len1+1);
}
if (len2 > 0) {
memcpy(d+len1, s, len2);
d[len1+len2] = 0;
}
return ret;
}
#endif
/* caller frees username if necessary */
char *
getusername(uid_t uid)
{
char *username = NULL;
struct passwd *password = getpwuid(uid);
if (password)
username = password->pw_name;
return username;
}
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