ref: 2a5861c59427e9e2e943bf70e0cd655bde9f9d39 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; }