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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
* Copyright 2003-2012 Gentoo Foundation
* Distributed under the terms of the GNU General Public License v2
* $Header: /var/cvsroot/gentoo-projects/pax-utils/xfuncs.c,v 1.11 2012/11/04 07:26:24 vapier Exp $
*
* Copyright 2003-2012 Ned Ludd - <solar@gentoo.org>
* Copyright 2004-2012 Mike Frysinger - <vapier@gentoo.org>
*/
#include "paxinc.h"
char *xstrdup(const char *s)
{
char *ret = strdup(s);
if (!ret) err("Could not strdup(): %s", strerror(errno));
return ret;
}
void *xmalloc(size_t size)
{
void *ret = malloc(size);
if (!ret) err("Could not malloc() %zu bytes", size);
return ret;
}
void *xzalloc(size_t size)
{
return memset(xmalloc(size), 0, size);
}
void *xrealloc(void *ptr, size_t size)
{
void *ret = realloc(ptr, size);
if (!ret) err("Could not realloc() %zu bytes", size);
return ret;
}
void xstrncat(char **dst, const char *src, size_t *curr_len, size_t n)
{
bool init;
size_t new_len;
init = *curr_len ? false : true;
new_len = (init ? 0 : strlen(*dst)) + strlen(src);
if (*curr_len <= new_len) {
*curr_len = new_len + (*curr_len / 2) + 1;
*dst = realloc(*dst, *curr_len);
if (!*dst)
err("could not realloc() %zu bytes", *curr_len);
if (init)
*dst[0] = '\0';
}
if (n)
strncat(*dst, src, n);
else
strcat(*dst, src);
}
void xchrcat(char **dst, const char append, size_t *curr_len)
{
static char my_app[2];
my_app[0] = append;
my_app[1] = '\0';
xstrcat(dst, my_app, curr_len);
}
void *xmemdup(const void *src, size_t n)
{
void *ret = xmalloc(n);
memcpy(ret, src, n);
return ret;
}
void xarraypush(array_t *arr, const void *ele, size_t ele_len)
{
size_t n = arr->num++;
arr->eles = xrealloc_array(arr->eles, arr->num, sizeof(ele));
arr->eles[n] = xmemdup(ele, ele_len);
}
void xarrayfree(array_t *arr)
{
array_t blank = array_init_decl;
size_t n;
for (n = 0; n < arr->num; ++n)
free(arr->eles[n]);
free(arr->eles);
*arr = blank;
}
char *array_flatten_str(array_t *array)
{
size_t n, len = 0;
char *str, *ret = NULL;
array_for_each(array, n, str) {
if (ret)
xchrcat(&ret, ',', &len);
xstrcat(&ret, str, &len);
}
return ret;
}
|
GitWeb