ref: b143811a53bf25824e74b7e6e6c2ee7af8c7a954
dir: /sys/src/ape/lib/ap/gen/strdup.c/
#include <string.h> #include <ctype.h> #include <stdlib.h> char* strdup(char *p) { int n; char *np; n = strlen(p)+1; np = malloc(n); if(np) memmove(np, p, n); return np; }