ref: 6a09d2da7e29f18a244f3a3a2959d0a78ed9540b dir: /sys/src/libc/port/strcat.c/
#include <u.h> #include <libc.h> char* strcat(char *s1, char *s2) { strcpy(strchr(s1, 0), s2); return s1; }