ref: a0ba4c1f03a3f99fb17a9edf9b4448db49bb6c46 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; }