WebSVN – HelenOS-historic – Diff – /uspace/trunk/libc/generic/io/io.c


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

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/libc/generic/io/io.c – Rev 974 → 1010

Rev 974		Rev 1010
1	/*	1	/*
2	* Copyright (C) 2005 Martin Decky	2	* Copyright (C) 2005 Martin Decky
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#include <libc.h>	29	#include <libc.h>
30	#include <unistd.h>	30	#include <unistd.h>
31	#include <stdio.h>	31	#include <stdio.h>
32	#include <io/io.h>	32	#include <io/io.h>
33		33
34	static char nl = '\n';	34	static char nl = '\n';
35		35
36	int puts(const char * str)	36	int puts(const char * str)
37	{	37	{
38	size_t count;	38	size_t count;
39		39
40	for (count = 0; str[count] != 0; count++);	40	for (count = 0; str[count] != 0; count++);
41	if (write(1, (void * ) str, count) == count) {	41	if (write(1, (void * ) str, count) == count) {
42	if (write(1, &nl, 1) == 1)	42	if (write(1, &nl, 1) == 1)
43	return 0;	43	return 0;
44	}	44	}
45		45
46	return EOF;	46	return EOF;
47	}	47	}
48		48
49	/** Put count chars from buffer to stdout without adding newline	49	/** Put count chars from buffer to stdout without adding newline
50	* @param buf Buffer with size at least count bytes	50	* @param buf Buffer with size at least count bytes
51	* @param count	51	* @param count
52	* @return 0 on succes, EOF on fail	52	* @return 0 on succes, EOF on fail
53	*/	53	*/
54	int putnchars(const char * buf, size_t count)	54	int putnchars(const char * buf, size_t count)
55	{	55	{
56	if (write(1, (void * ) buf, count) == count) {	56	if (write(1, (void * ) buf, count) == count) {
57	return 0;	57	return 0;
58	}	58	}
59		59
60	return EOF;	60	return EOF;
61	}	61	}
62		62
63	/** Same as puts, but does not print newline at end	63	/** Same as puts, but does not print newline at end
64	*	64	*
65	*/	65	*/
66	int putstr(const char * str)	66	int putstr(const char * str)
67	{	67	{
68	size_t count;	68	size_t count;
69		69
-		70	if (str == NULL) {
-		71	return putnchars("(NULL)",6 );
-		72	}
-		73
70	for (count = 0; str[count] != 0; count++);	74	for (count = 0; str[count] != 0; count++);
71	if (write(1, (void * ) str, count) == count) {	75	if (write(1, (void * ) str, count) == count) {
72	return 0;	76	return 0;
73	}	77	}
74		78
75	return EOF;	79	return EOF;
76	}	80	}
77		81
78	ssize_t write(int fd, const void * buf, size_t count)	82	ssize_t write(int fd, const void * buf, size_t count)
79	{	83	{
80	return (ssize_t) __SYSCALL3(SYS_IO, (sysarg_t) fd, (sysarg_t) buf, (sysarg_t) count);	84	return (ssize_t) __SYSCALL3(SYS_IO, (sysarg_t) fd, (sysarg_t) buf, (sysarg_t) count);
81	}	85	}
82		86
83		87
84		88