/* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org> * * GNU Library General Public License (LGPL) version 2 or later. * * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. */ #include "_stdio.h" link_warning(gets, "the 'gets' function is dangerous and should not be used.") /* UNSAFE FUNCTION -- do not bother optimizing */ libc_hidden_proto(getchar_unlocked) libc_hidden_proto(__fgetc_unlocked) #ifdef __STDIO_GETC_MACRO libc_hidden_proto(__stdin) #else #define __stdin stdin #endif char *gets(char *s) { register char *p = s; int c; __STDIO_AUTO_THREADLOCK_VAR; __STDIO_AUTO_THREADLOCK(stdin); /* Note: don't worry about performance here... this shouldn't be used! * Therefore, force actual function call. */ while (((c = getchar_unlocked()) != EOF) && ((*p = c) != '\n')) { ++p; } if ((c == EOF) || (s == p)) { s = NULL; } else { *p = 0; } __STDIO_AUTO_THREADUNLOCK(stdin); return s; }