ref: 446c1f6f0f1a56c7bb736d3f92b46f1a5280dbf8 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; }