[b861b58] | 1 | /*
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[df4ed85] | 2 | * Copyright (c) 2005 Martin Decky
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[b861b58] | 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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[b2951e2] | 27 | */
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| 28 |
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[fadd381] | 29 | /** @addtogroup libc
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[b2951e2] | 30 | * @{
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| 31 | */
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| 32 | /** @file
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[cc6f688] | 33 | */
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[b861b58] | 34 |
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| 35 | #include <libc.h>
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[cc6f688] | 36 | #include <unistd.h>
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| 37 | #include <stdio.h>
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[4e2cf8b] | 38 | #include <io/io.h>
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[b861b58] | 39 |
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[3dbe2d1f] | 40 | const static char nl = '\n';
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[350514c] | 41 |
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[3dbe2d1f] | 42 | int puts(const char *str)
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[b861b58] | 43 | {
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[cc6f688] | 44 | size_t count;
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| 45 |
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[3dbe2d1f] | 46 | if (str == NULL)
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| 47 | return putnchars("(NULL)", 6);
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[c9857c6] | 48 |
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[cc6f688] | 49 | for (count = 0; str[count] != 0; count++);
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[3dbe2d1f] | 50 | if (write(1, (void *) str, count) == count) {
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[350514c] | 51 | if (write(1, &nl, 1) == 1)
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| 52 | return 0;
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| 53 | }
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| 54 |
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| 55 | return EOF;
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[cc6f688] | 56 | }
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[b861b58] | 57 |
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[4e2cf8b] | 58 | /** Put count chars from buffer to stdout without adding newline
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[c9857c6] | 59 | * @param buf Buffer with size at least count bytes - NULL pointer NOT allowed!
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[4e2cf8b] | 60 | * @param count
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| 61 | * @return 0 on succes, EOF on fail
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| 62 | */
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[3dbe2d1f] | 63 | int putnchars(const char *buf, size_t count)
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[4e2cf8b] | 64 | {
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[3dbe2d1f] | 65 | if (write(1, (void *) buf, count) == count)
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[4e2cf8b] | 66 | return 0;
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| 67 |
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| 68 | return EOF;
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| 69 | }
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| 70 |
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| 71 | /** Same as puts, but does not print newline at end
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| 72 | *
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| 73 | */
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[3dbe2d1f] | 74 | int putstr(const char *str)
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[4e2cf8b] | 75 | {
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| 76 | size_t count;
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| 77 |
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[3dbe2d1f] | 78 | if (str == NULL)
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| 79 | return putnchars("(NULL)", 6);
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[55cff86] | 80 |
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[4e2cf8b] | 81 | for (count = 0; str[count] != 0; count++);
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[3dbe2d1f] | 82 | if (write(1, (void *) str, count) == count)
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[4e2cf8b] | 83 | return 0;
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| 84 |
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| 85 | return EOF;
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| 86 | }
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| 87 |
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[c9857c6] | 88 | int putchar(int c)
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| 89 | {
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| 90 | unsigned char ch = c;
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[3dbe2d1f] | 91 | if (write(1, (void *) &ch, 1) == 1)
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[c9857c6] | 92 | return c;
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| 93 |
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| 94 | return EOF;
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| 95 | }
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[b27a97bb] | 96 |
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| 97 | int getchar(void)
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| 98 | {
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| 99 | unsigned char c;
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[3dbe2d1f] | 100 | if (read(0, (void *) &c, 1) == 1)
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[b27a97bb] | 101 | return c;
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| 102 |
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| 103 | return EOF;
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| 104 | }
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| 105 |
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[fadd381] | 106 | /** @}
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[b2951e2] | 107 | */
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