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;
   
    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;
}
 
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);
}
 
 
 

Rev 1010	Rev 1173
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	if (str == NULL) {
-		41	return putnchars("(NULL)",6 );
-		42	}
-		43
40	for (count = 0; str[count] != 0; count++);	44	for (count = 0; str[count] != 0; count++);
41	if (write(1, (void * ) str, count) == count) {	45	if (write(1, (void * ) str, count) == count) {
42	if (write(1, &nl, 1) == 1)	46	if (write(1, &nl, 1) == 1)
43	return 0;	47	return 0;
44	}	48	}
45		49
46	return EOF;	50	return EOF;
47	}	51	}
48		52
49	/** Put count chars from buffer to stdout without adding newline	53	/** Put count chars from buffer to stdout without adding newline
50	* @param buf Buffer with size at least count bytes	54	* @param buf Buffer with size at least count bytes - NULL pointer NOT allowed!
51	* @param count	55	* @param count
52	* @return 0 on succes, EOF on fail	56	* @return 0 on succes, EOF on fail
53	*/	57	*/
54	int putnchars(const char * buf, size_t count)	58	int putnchars(const char * buf, size_t count)
55	{	59	{
56	if (write(1, (void * ) buf, count) == count) {	60	if (write(1, (void * ) buf, count) == count) {
57	return 0;	61	return 0;
58	}	62	}
59		63
60	return EOF;	64	return EOF;
61	}	65	}
62		66
63	/** Same as puts, but does not print newline at end	67	/** Same as puts, but does not print newline at end
64	*	68	*
65	*/	69	*/
66	int putstr(const char * str)	70	int putstr(const char * str)
67	{	71	{
68	size_t count;	72	size_t count;
69		73
70	if (str == NULL) {	74	if (str == NULL) {
71	return putnchars("(NULL)",6 );	75	return putnchars("(NULL)",6 );
72	}	76	}
73		77
74	for (count = 0; str[count] != 0; count++);	78	for (count = 0; str[count] != 0; count++);
75	if (write(1, (void * ) str, count) == count) {	79	if (write(1, (void * ) str, count) == count) {
76	return 0;	80	return 0;
77	}	81	}
-		82
-		83	return EOF;
-		84	}
-		85
-		86	int putchar(int c)
-		87	{
-		88	unsigned char ch = c;
-		89	if (write(1, (void *)&ch , 1) == 1) {
-		90	return c;
-		91	}
78		92
79	return EOF;	93	return EOF;
80	}	94	}
81		95
82	ssize_t write(int fd, const void * buf, size_t count)	96	ssize_t write(int fd, const void * buf, size_t count)
83	{	97	{
84	return (ssize_t) __SYSCALL3(SYS_IO, (sysarg_t) fd, (sysarg_t) buf, (sysarg_t) count);	98	return (ssize_t) __SYSCALL3(SYS_IO, (sysarg_t) fd, (sysarg_t) buf, (sysarg_t) count);
85	}	99	}
86		100
87		101
88		102

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/libc/generic/io/io.c – Rev 1010 → 1173