ref: 1f95e98dddc420321a8942d9f3195d966c7cc6c0
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; }