ref: d25b95f4f26d57bf06a2d0f00a0872f715919c21
dir: /sys/src/ape/lib/ap/gen/strncpy.c/
#include <string.h>
char*
strncpy(char *s1, const char *s2, size_t n)
{
int i;
char *os1;
os1 = s1;
for(i = 0; i < n; i++)
if((*s1++ = *s2++) == 0) {
while(++i < n)
*s1++ = 0;
return os1;
}
return os1;
}