ref: 4ec88571a4d7a4d77043c6d0b9268ea52d8ae788 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; }