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/*
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Unix SMB/CIFS implementation.
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replacement routines for broken systems
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Copyright (C) Andrew Tridgell 1992-1998
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Copyright (C) Jelmer Vernooij 2005-2008
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** NOTE! The following LGPL license applies to the replace
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** library. This does NOT imply that all of Samba is released
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** under the LGPL
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <sys/types.h>
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#include <string.h>
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#include <pwd.h>
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#include "util.h"
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/* glibc doesn't have strlcpy, strlcat. Ensure we do. JRA. We
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* don't link to libreplace so need them here. */
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/* like strncpy but does not 0 fill the buffer and always null
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* terminates. bufsize is the size of the destination buffer */
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#ifndef HAVE_STRLCPY
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size_t strlcpy(char *d, const char *s, size_t bufsize)
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{
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size_t len = strlen(s);
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size_t ret = len;
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if (bufsize <= 0) return 0;
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if (len >= bufsize) len = bufsize-1;
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memcpy(d, s, len);
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d[len] = 0;
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return ret;
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}
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#endif
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/* like strncat but does not 0 fill the buffer and always null
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* terminates. bufsize is the length of the buffer, which should
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* be one more than the maximum resulting string length */
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#ifndef HAVE_STRLCAT
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size_t strlcat(char *d, const char *s, size_t bufsize)
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{
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size_t len1 = strlen(d);
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size_t len2 = strlen(s);
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size_t ret = len1 + len2;
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if (len1+len2 >= bufsize) {
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if (bufsize < (len1+1)) {
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return ret;
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}
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len2 = bufsize - (len1+1);
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}
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if (len2 > 0) {
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memcpy(d+len1, s, len2);
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d[len1+len2] = 0;
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}
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return ret;
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}
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#endif
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/* caller frees username if necessary */
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char *
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getusername(uid_t uid)
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{
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char *username = NULL;
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struct passwd *password = getpwuid(uid);
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if (password)
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username = password->pw_name;
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return username;
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}
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