WebSVN – HelenOS – Diff – /trunk/uspace/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.
 */
 
/** @addtogroup libc
 * @{
 */
/** @file
 */
 
#include <libc.h>
#include <unistd.h>
#include <stdio.h>
#include <io/io.h>
 
const static char nl = '\n';
 
int puts(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) {
        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 - NULL pointer NOT allowed!
 * @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;
}
 
int putchar(int c)
{
    unsigned char ch = c;
    if (write(1, (void *) &ch, 1) == 1)
            return c;
 
   
    return EOF;
}
 
int getchar(void)
{
    unsigned char c;
    if (read(0, (void *) &c, 1) == 1)
            return c;
 
   
    return EOF;
}
 
/** @}
 */
 

Rev 2071	Rev 2209
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	/** @addtogroup libc	29	/** @addtogroup libc
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <libc.h>	35	#include <libc.h>
36	#include <unistd.h>	36	#include <unistd.h>
37	#include <stdio.h>	37	#include <stdio.h>
38	#include <io/io.h>	38	#include <io/io.h>
39		39
40	static char nl = '\n';	40	const static char nl = '\n';
41		41
42	int puts(const char * str)	42	int puts(const char *str)
43	{	43	{
44	size_t count;	44	size_t count;
45		45
46	if (str == NULL) {	46	if (str == NULL)
47	return putnchars("(NULL)",6 );	47	return putnchars("(NULL)", 6);
48	}	-
49		48
50	for (count = 0; str[count] != 0; count++);	49	for (count = 0; str[count] != 0; count++);
51	if (write(1, (void * ) str, count) == count) {	50	if (write(1, (void *) str, count) == count) {
52	if (write(1, &nl, 1) == 1)	51	if (write(1, &nl, 1) == 1)
53	return 0;	52	return 0;
54	}	53	}
55		54
56	return EOF;	55	return EOF;
57	}	56	}
58		57
59	/** Put count chars from buffer to stdout without adding newline	58	/** Put count chars from buffer to stdout without adding newline
60	* @param buf Buffer with size at least count bytes - NULL pointer NOT allowed!	59	* @param buf Buffer with size at least count bytes - NULL pointer NOT allowed!
61	* @param count	60	* @param count
62	* @return 0 on succes, EOF on fail	61	* @return 0 on succes, EOF on fail
63	*/	62	*/
64	int putnchars(const char * buf, size_t count)	63	int putnchars(const char *buf, size_t count)
65	{	64	{
66	if (write(1, (void * ) buf, count) == count) {	65	if (write(1, (void *) buf, count) == count)
67	return 0;	66	return 0;
68	}	-
69		67
70	return EOF;	68	return EOF;
71	}	69	}
72		70
73	/** Same as puts, but does not print newline at end	71	/** Same as puts, but does not print newline at end
74	*	72	*
75	*/	73	*/
76	int putstr(const char * str)	74	int putstr(const char *str)
77	{	75	{
78	size_t count;	76	size_t count;
79		77
80	if (str == NULL) {	78	if (str == NULL)
81	return putnchars("(NULL)",6 );	79	return putnchars("(NULL)", 6);
82	}	-
83		80
84	for (count = 0; str[count] != 0; count++);	81	for (count = 0; str[count] != 0; count++);
85	if (write(1, (void * ) str, count) == count) {	82	if (write(1, (void *) str, count) == count)
86	return 0;	83	return 0;
87	}	-
88		84
89	return EOF;	85	return EOF;
90	}	86	}
91		87
92	int putchar(int c)	88	int putchar(int c)
93	{	89	{
94	unsigned char ch = c;	90	unsigned char ch = c;
95	if (write(1, (void *)&ch , 1) == 1) {	91	if (write(1, (void *) &ch, 1) == 1)
96	return c;	92	return c;
97	}	-
98		93
99	return EOF;	94	return EOF;
100	}	95	}
101		96
102	int getchar(void)	97	int getchar(void)
103	{	98	{
104	unsigned char c;	99	unsigned char c;
105	if (read(0, (void *)&c , 1) == 1) {	100	if (read(0, (void *) &c, 1) == 1)
106	return c;	101	return c;
107	}	-
108		102
109	return EOF;	103	return EOF;
110	}	104	}
111		105
112	/** @}	106	/** @}
113	*/	107	*/
114		108

Subversion Repositories HelenOS

(root)/trunk/uspace/libc/generic/io/io.c – Rev 2071 → 2209