ref: 2a73c1ded06a9d0bedb6ce6e38e4628be9cc868f 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; }