ref: 8b1d17a2e47c8f1c27bf6c5cd608307aa806d04f 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; }