github.com/afumu/libc@v0.0.6/musl/src/string/strtok_r.c (about)

     1  #include <string.h>
     2  
     3  char *strtok_r(char *restrict s, const char *restrict sep, char **restrict p)
     4  {
     5  	if (!s && !(s = *p)) return NULL;
     6  	s += strspn(s, sep);
     7  	if (!*s) return *p = 0;
     8  	*p = s + strcspn(s, sep);
     9  	if (**p) *(*p)++ = 0;
    10  	else *p = 0;
    11  	return s;
    12  }