ref: 8cfd549d118fbec88f3cd8d7740e5b94fbcf9a2d 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; }