ref: 4eaac6bfb11cc84259e8b418d4babffdf1c637eb
dir: /lib/c/stdio/gets.c/
#include <stdio.h> #undef gets char * gets(char *s) { int ch; char *t = s; while ((ch = getc(stdin)) != EOF && ch != '\n') *t++ = ch; if (ch == EOF && s == t) return NULL; *t = '\0'; return s; }