ref: 7e28dd89afb6af9e30ec8c9f4a3ac5fc660a464f 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; }