libc/stdio/fputs.c

   1 /* Copyright (C) 2004       Manuel Novoa III    <mjn3@codepoet.org>
   2  *
   3  * GNU Library General Public License (LGPL) version 2 or later.
   4  *
   5  * Dedicated to Toni.  See uClibc/DEDICATION.mjn3 for details.
   6  */
   7
   8 #include "_stdio.h"
   9
  10
  11
  12 /* Note: The standard says fputs returns a nonnegative number on
  13  * success.  In this implementation, we return the length of the
  14  * string written on success.
  15  */
  16
  17 #ifdef __DO_UNLOCKED
  18
  19 int fputs_unlocked(register const char * __restrict s,
  20                                          FILE * __restrict stream)
  21 {
  22         size_t n = strlen(s);
  23
  24         return ((fwrite_unlocked(s, 1, n, stream) == n) ? n : EOF);
  25 }
  26 libc_hidden_def(fputs_unlocked)
  27
  28 #ifndef __UCLIBC_HAS_THREADS__
  29 strong_alias(fputs_unlocked,fputs)
  30 libc_hidden_def(fputs)
  31 #endif
  32
  33 #elif defined __UCLIBC_HAS_THREADS__
  34
  35 int fputs(const char * __restrict s, register FILE * __restrict stream)
  36 {
  37         int retval;
  38         __STDIO_AUTO_THREADLOCK_VAR;
  39
  40         __STDIO_AUTO_THREADLOCK(stream);
  41
  42         retval = fputs_unlocked(s, stream);
  43
  44         __STDIO_AUTO_THREADUNLOCK(stream);
  45
  46         return retval;
  47 }
  48 libc_hidden_def(fputs)
  49
  50 #endif