ref: 1d0b9d7088f61fd3e28dada8e8e97abf3eac69f9 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; }