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Add thread-safe strtok_r() function.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9192 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Philippe Houdoin 2004-10-04 23:44:15 +00:00
parent 40cc0ebde2
commit a889bb181d
1 changed files with 16 additions and 5 deletions
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21
src/kernel/libroot/posix/string/strtok.c
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@ -6,27 +6,38 @@
#include <sys/types.h>
#include <string.h>
static char *___strtok = NULL;
char *
strtok(char *s, char const *ct)
strtok_r(char *s, char const *ct, char **save_ptr)
{
char *sbegin, *send;
if (!s && !save_ptr)
return NULL;
sbegin = s ? s : ___strtok;
sbegin = s ? s : *save_ptr;
if (!sbegin) {
return NULL;
}
sbegin += strspn(sbegin,ct);
if (*sbegin == '\0') {
___strtok = NULL;
if (save_ptr)
*save_ptr = NULL;
return NULL;
}
send = strpbrk(sbegin, ct);
if (send && *send != '\0')
*send++ = '\0';
___strtok = send;
if (save_ptr)
*save_ptr = send;
return sbegin;
}
char *
strtok(char *s, char const *ct)
{
return strtok_r(s, ct, &___strtok);
}