1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/*
* sysobj - https://github.com/bp0/verbose-spork
* Copyright (C) 2018 Burt P. <pburt0@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#define _GNU_SOURCE /* for vasprintf() */
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "appf.h"
char *appf(char *str, const char *sep, const char *fmt, ...) {
char *buf = NULL;
int inlen, seplen, len;
va_list args;
va_start(args, fmt);
len = vasprintf(&buf, fmt, args);
va_end(args);
if (len < 0) return str;
if (!str) return buf;
inlen = strlen(str);
seplen = (inlen && sep) ? strlen(sep) : 0;
str = realloc(str, inlen + seplen + len + 1);
if (seplen) strcpy(str + inlen, sep);
strcpy(str + inlen + seplen, buf);
free(buf);
return str;
}
char *appfdup(const char *str, const char *sep, const char *fmt, ...) {
char *buf = NULL, *ret = NULL;
int inlen, seplen, len;
va_list args;
va_start(args, fmt);
len = vasprintf(&buf, fmt, args);
va_end(args);
if (len < 0) return NULL;
if (!str) return buf;
inlen = strlen(str);
seplen = (inlen && sep) ? strlen(sep) : 0;
ret = malloc(inlen + seplen + len + 1);
strcpy(ret, str);
if (seplen) strcpy(ret + inlen, sep);
strcpy(ret + inlen + seplen, buf);
free(buf);
return ret;
}
|
