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504 decky 1 
/*
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 * Copyright (C) 2005 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <libc.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <io/io.h>
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static char nl = '\n';
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int puts(const char * str)
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{
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    size_t count;
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    if (str == NULL) {
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        return putnchars("(NULL)",6 );
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    }
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    for (count = 0; str[count] != 0; count++);
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    if (write(1, (void * ) str, count) == count) {
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        if (write(1, &nl, 1) == 1)
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            return 0;
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    }
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    return EOF;
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}
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/** Put count chars from buffer to stdout without adding newline
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 * @param buf Buffer with size at least count bytes - NULL pointer NOT allowed!
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 * @param count
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 * @return 0 on succes, EOF on fail
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 */
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int putnchars(const char * buf, size_t count)
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{
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    if (write(1, (void * ) buf, count) == count) {
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            return 0;
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    }
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    return EOF;
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}
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/** Same as puts, but does not print newline at end
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 *
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 */
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int putstr(const char * str)
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{
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    size_t count;
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    if (str == NULL) {
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        return putnchars("(NULL)",6 );
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    }
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    for (count = 0; str[count] != 0; count++);
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    if (write(1, (void * ) str, count) == count) {
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            return 0;
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    }
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    return EOF;
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}
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int putchar(int c)
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{
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    unsigned char ch = c;
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    if (write(1, (void *)&ch , 1) == 1) {
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            return c;
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    }
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    return EOF;
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}
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ssize_t write(int fd, const void * buf, size_t count)
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{
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    return (ssize_t) __SYSCALL3(SYS_IO, (sysarg_t) fd, (sysarg_t) buf, (sysarg_t) count);
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}
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