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/* fputs( const char *, FILE * )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#include <stdio.h>
#ifndef REGTEST
#include "pdclib/_PDCLIB_glue.h"
#ifndef __STDC_NO_THREADS__
#include <threads.h>
#endif
int fputs( const char * _PDCLIB_restrict s, struct _PDCLIB_file_t * _PDCLIB_restrict stream )
{
_PDCLIB_LOCK( stream->mtx );
if ( _PDCLIB_prepwrite( stream ) == EOF )
{
_PDCLIB_UNLOCK( stream->mtx );
return EOF;
}
while ( *s != '\0' )
{
/* Unbuffered and line buffered streams get flushed when fputs() does
write the terminating end-of-line. All streams get flushed if the
buffer runs full.
*/
stream->buffer[ stream->bufidx++ ] = *s;
if ( ( stream->bufidx == stream->bufsize ) ||
( ( stream->status & _IOLBF ) && *s == '\n' )
)
{
if ( _PDCLIB_flushbuffer( stream ) == EOF )
{
_PDCLIB_UNLOCK( stream->mtx );
return EOF;
}
}
++s;
}
if ( stream->status & _IONBF )
{
if ( _PDCLIB_flushbuffer( stream ) == EOF )
{
_PDCLIB_UNLOCK( stream->mtx );
return EOF;
}
}
_PDCLIB_UNLOCK( stream->mtx );
return 0;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
int main( void )
{
const char * const message = "SUCCESS testing fputs()";
FILE * fh;
size_t i;
TESTCASE( ( fh = tmpfile() ) != NULL );
TESTCASE( fputs( message, fh ) >= 0 );
rewind( fh );
for ( i = 0; i < 23; ++i )
{
TESTCASE( fgetc( fh ) == message[i] );
}
TESTCASE( fclose( fh ) == 0 );
return TEST_RESULTS;
}
#endif
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