378 lines
6.5 KiB
C
378 lines
6.5 KiB
C
/*
|
|
* Copyright (C) 2000-2007 Carsten Haitzler, Geoff Harrison and various contributors
|
|
* Copyright (C) 2005-2022 Kim Woelders
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies of the Software, its documentation and marketing & publicity
|
|
* materials, and acknowledgment shall be given in the documentation, materials
|
|
* and software packages that this Software was used.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#include "config.h"
|
|
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "util.h"
|
|
|
|
void *
|
|
Ememdup(const void *ptr, unsigned int len)
|
|
{
|
|
void *ret;
|
|
|
|
if (len == 0)
|
|
return NULL;
|
|
|
|
ret = malloc(len);
|
|
if (!ret)
|
|
return 0;
|
|
memcpy(ret, ptr, len);
|
|
|
|
return ret;
|
|
}
|
|
|
|
__EXPORT__ void
|
|
EfreeNull(void **p)
|
|
{
|
|
Efree(*p);
|
|
*p = NULL;
|
|
}
|
|
|
|
void
|
|
EfreeSet(void **p, void *s)
|
|
{
|
|
Efree(*p);
|
|
*p = s;
|
|
}
|
|
|
|
void
|
|
EfreeDup(char **p, const char *s)
|
|
{
|
|
Efree(*p);
|
|
*p = Estrdup(s);
|
|
}
|
|
|
|
char *
|
|
Estrtrim(char *s)
|
|
{
|
|
int l;
|
|
|
|
while (*s == ' ')
|
|
s++;
|
|
if (!*s)
|
|
return s;
|
|
|
|
l = strlen(s);
|
|
while (isspace(s[l - 1]))
|
|
l--;
|
|
s[l] = '\0';
|
|
|
|
return s;
|
|
}
|
|
|
|
char *
|
|
Estrdup(const char *s)
|
|
{
|
|
if (!s)
|
|
return NULL;
|
|
#if USE_LIBC_STRDUP
|
|
return strdup(s);
|
|
#else
|
|
return Ememdup(s, strlen(s) + 1);
|
|
#endif
|
|
}
|
|
|
|
char *
|
|
Estrndup(const char *s, size_t n)
|
|
{
|
|
if (!s)
|
|
return NULL;
|
|
#if USE_LIBC_STRNDUP
|
|
return strndup(s, n);
|
|
#else
|
|
char *ss;
|
|
|
|
ss = Ememdup(s, n + 1);
|
|
ss[n] = '\0';
|
|
return ss;
|
|
#endif
|
|
}
|
|
|
|
char *
|
|
Estrdupcat2(char *ss, const char *s1, const char *s2)
|
|
{
|
|
char *s;
|
|
int len, l1, l2;
|
|
|
|
if (!ss)
|
|
return Estrdup(s2);
|
|
|
|
len = strlen(ss);
|
|
l1 = (s1) ? strlen(s1) : 0;
|
|
l2 = (s2) ? strlen(s2) : 0;
|
|
|
|
s = EREALLOC(char, ss, len + l1 + l2 + 1);
|
|
if (!s)
|
|
return NULL;
|
|
if (s1 && l1)
|
|
memcpy(s + len, s1, l1);
|
|
if (s2 && l2)
|
|
memcpy(s + len + l1, s2, l2);
|
|
s[len + l1 + l2] = '\0';
|
|
|
|
return s;
|
|
}
|
|
|
|
#if 0 /* Unused */
|
|
char **
|
|
StrlistDup(char **lst, int num)
|
|
{
|
|
char **ss;
|
|
int i;
|
|
|
|
if (!lst || num <= 0)
|
|
return NULL;
|
|
|
|
ss = EMALLOC(char *, num + 1);
|
|
for (i = 0; i < num; i++)
|
|
ss[i] = Estrdup(lst[i]);
|
|
ss[i] = NULL;
|
|
|
|
return ss;
|
|
}
|
|
#endif
|
|
|
|
void
|
|
StrlistFree(char **lst, int num)
|
|
{
|
|
if (!lst)
|
|
return;
|
|
while (num--)
|
|
Efree(lst[num]);
|
|
Efree(lst);
|
|
}
|
|
|
|
#if 0 /* FIXME - Remove? */
|
|
char *
|
|
StrlistJoin(char **lst, int num)
|
|
{
|
|
int i, size;
|
|
char *s;
|
|
|
|
if (!lst || num <= 0)
|
|
return NULL;
|
|
|
|
s = NULL;
|
|
|
|
size = strlen(lst[0]) + 1;
|
|
s = EMALLOC(char, size);
|
|
strcpy(s, lst[0]);
|
|
for (i = 1; i < num; i++)
|
|
{
|
|
size += strlen(lst[i]) + 1;
|
|
s = EREALLOC(char, s, size);
|
|
|
|
strcat(s, " ");
|
|
strcat(s, lst[i]);
|
|
}
|
|
|
|
return s;
|
|
}
|
|
#endif
|
|
|
|
char *
|
|
StrlistEncodeEscaped(char *buf, int len, char **lst, int num)
|
|
{
|
|
int i, j, ch;
|
|
char *s, *p;
|
|
|
|
if (!lst || num <= 0)
|
|
return NULL;
|
|
|
|
j = 0;
|
|
s = buf;
|
|
p = lst[0];
|
|
for (i = 0; i < len - 2; i++)
|
|
{
|
|
if (!p) /* A string list should not contain NULL items */
|
|
break;
|
|
|
|
ch = *p++;
|
|
switch (ch)
|
|
{
|
|
default:
|
|
*s++ = ch;
|
|
break;
|
|
case '\0':
|
|
if (++j >= num)
|
|
goto done;
|
|
p = lst[j];
|
|
if (!p || !p[0])
|
|
goto done;
|
|
*s++ = ' ';
|
|
break;
|
|
case ' ':
|
|
*s++ = '\\';
|
|
*s++ = ' ';
|
|
i++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
done:
|
|
*s = '\0';
|
|
return buf;
|
|
}
|
|
|
|
char **
|
|
StrlistDecodeEscaped(const char *str, int *pnum)
|
|
{
|
|
int num, len;
|
|
const char *s, *p;
|
|
char **lst;
|
|
|
|
if (!str)
|
|
return NULL;
|
|
|
|
lst = NULL;
|
|
num = 0;
|
|
s = str;
|
|
for (;;)
|
|
{
|
|
while (*s == ' ')
|
|
s++;
|
|
if (*s == '\0')
|
|
break;
|
|
|
|
lst = EREALLOC(char *, lst, num + 1);
|
|
|
|
lst[num] = NULL;
|
|
len = 0;
|
|
|
|
for (;;)
|
|
{
|
|
p = strchr(s, ' ');
|
|
if (!p)
|
|
p = s + strlen(s);
|
|
|
|
lst[num] = EREALLOC(char, lst[num], len + p - s + 1);
|
|
|
|
memcpy(lst[num] + len, s, p - s);
|
|
len += p - s;
|
|
lst[num][len] = '\0';
|
|
|
|
s = p;
|
|
if (p[-1] == '\\')
|
|
{
|
|
if (*p)
|
|
lst[num][len - 1] = ' ';
|
|
else
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
while (*s == ' ')
|
|
s++;
|
|
if (*s == '\0')
|
|
break;
|
|
}
|
|
num++;
|
|
}
|
|
|
|
/* Append NULL item */
|
|
lst = EREALLOC(char *, lst, num + 1);
|
|
|
|
lst[num] = NULL;
|
|
|
|
*pnum = num;
|
|
return lst;
|
|
}
|
|
|
|
char **
|
|
StrlistFromString(const char *str, int delim, int *num)
|
|
{
|
|
const char *s, *p;
|
|
char **lst;
|
|
int n, len;
|
|
|
|
lst = NULL;
|
|
n = 0;
|
|
for (s = str; s; s = p)
|
|
{
|
|
p = strchr(s, delim);
|
|
if (p)
|
|
{
|
|
len = p - s;
|
|
p++;
|
|
}
|
|
else
|
|
{
|
|
len = strlen(s);
|
|
}
|
|
if (len <= 0)
|
|
continue;
|
|
|
|
lst = EREALLOC(char *, lst, n + 2);
|
|
|
|
lst[n++] = Estrndup(s, len);
|
|
}
|
|
|
|
if (lst)
|
|
lst[n] = NULL;
|
|
*num = n;
|
|
return lst;
|
|
}
|
|
|
|
static int
|
|
_qsort_strcmp(const void *s1, const void *s2)
|
|
{
|
|
return strcmp(*(const char **)s1, *(const char **)s2);
|
|
}
|
|
|
|
void
|
|
StrlistSort(char **lst, int len)
|
|
{
|
|
qsort(lst, (unsigned int)len, sizeof(char *), _qsort_strcmp);
|
|
}
|
|
|
|
void
|
|
Esetenv(const char *name, const char *value)
|
|
{
|
|
if (value)
|
|
{
|
|
#if HAVE_SETENV
|
|
setenv(name, value, 1);
|
|
#else
|
|
char buf[4096];
|
|
|
|
Esnprintf(buf, sizeof(buf), "%s=%s", name, value);
|
|
putenv(Estrdup(buf));
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
#if HAVE_UNSETENV
|
|
unsetenv(name);
|
|
#else
|
|
if (getenv(name))
|
|
putenv((char *)name);
|
|
#endif
|
|
}
|
|
}
|