mirror of
https://github.com/systemd/systemd.git
synced 2024-11-14 15:21:37 +03:00
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2013 Kay Sievers
|
|
|
|
systemd 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 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
/*
|
|
* Concatenates/copies strings. In any case, terminates in all cases
|
|
* with '\0' * and moves the @dest pointer forward to the added '\0'.
|
|
* Returns the * remaining size, and 0 if the string was truncated.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "strxcpyx.h"
|
|
|
|
size_t strpcpy(char **dest, size_t size, const char *src)
|
|
{
|
|
size_t len;
|
|
|
|
len = strlen(src);
|
|
if (len >= size) {
|
|
if (size > 1)
|
|
*dest = mempcpy(*dest, src, size-1);
|
|
size = 0;
|
|
} else {
|
|
if (len > 0) {
|
|
*dest = mempcpy(*dest, src, len);
|
|
size -= len;
|
|
}
|
|
}
|
|
*dest[0] = '\0';
|
|
return size;
|
|
}
|
|
|
|
size_t strpcpyf(char **dest, size_t size, const char *src, ...)
|
|
{
|
|
va_list va;
|
|
int i;
|
|
|
|
va_start(va, src);
|
|
i = vsnprintf(*dest, size, src, va);
|
|
if (i < (int)size) {
|
|
*dest += i;
|
|
size -= i;
|
|
} else {
|
|
*dest += size;
|
|
size = 0;
|
|
}
|
|
va_end(va);
|
|
*dest[0] = '\0';
|
|
return size;
|
|
}
|
|
|
|
size_t strpcpyl(char **dest, size_t size, const char *src, ...)
|
|
{
|
|
va_list va;
|
|
|
|
va_start(va, src);
|
|
do {
|
|
size = strpcpy(dest, size, src);
|
|
src = va_arg(va, char *);
|
|
} while (src != NULL);
|
|
va_end(va);
|
|
return size;
|
|
}
|
|
|
|
size_t strscpy(char *dest, size_t size, const char *src)
|
|
{
|
|
char *s;
|
|
|
|
s = dest;
|
|
return strpcpy(&s, size, src);
|
|
}
|
|
|
|
size_t strscpyl(char *dest, size_t size, const char *src, ...) {
|
|
va_list va;
|
|
char *s;
|
|
|
|
va_start(va, src);
|
|
s = dest;
|
|
do {
|
|
size = strpcpy(&s, size, src);
|
|
src = va_arg(va, char *);
|
|
} while (src != NULL);
|
|
va_end(va);
|
|
|
|
return size;
|
|
}
|