ref: 217f99b1373f6d2a29a8fc05a2e065df2b926bf0 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; }