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504 | decky | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
504 | decky | 3 | * All rights reserved. |
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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1653 | cejka | 27 | */ |
28 | |||
1866 | jermar | 29 | /** @addtogroup libc |
1653 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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504 | decky | 33 | */ |
34 | |||
35 | #include <libc.h> |
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36 | #include <unistd.h> |
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37 | #include <stdio.h> |
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974 | cejka | 38 | #include <io/io.h> |
504 | decky | 39 | |
713 | decky | 40 | static char nl = '\n'; |
41 | |||
504 | decky | 42 | int puts(const char * str) |
43 | { |
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44 | size_t count; |
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45 | |||
1173 | cejka | 46 | if (str == NULL) { |
47 | return putnchars("(NULL)",6 ); |
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48 | } |
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49 | |||
504 | decky | 50 | for (count = 0; str[count] != 0; count++); |
713 | decky | 51 | if (write(1, (void * ) str, count) == count) { |
52 | if (write(1, &nl, 1) == 1) |
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53 | return 0; |
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54 | } |
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55 | |||
56 | return EOF; |
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504 | decky | 57 | } |
58 | |||
974 | cejka | 59 | /** Put count chars from buffer to stdout without adding newline |
1173 | cejka | 60 | * @param buf Buffer with size at least count bytes - NULL pointer NOT allowed! |
974 | cejka | 61 | * @param count |
62 | * @return 0 on succes, EOF on fail |
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63 | */ |
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64 | int putnchars(const char * buf, size_t count) |
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65 | { |
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66 | if (write(1, (void * ) buf, count) == count) { |
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67 | return 0; |
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68 | } |
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69 | |||
70 | return EOF; |
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71 | } |
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72 | |||
73 | /** Same as puts, but does not print newline at end |
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74 | * |
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75 | */ |
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76 | int putstr(const char * str) |
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77 | { |
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78 | size_t count; |
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79 | |||
1010 | cejka | 80 | if (str == NULL) { |
81 | return putnchars("(NULL)",6 ); |
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82 | } |
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83 | |||
974 | cejka | 84 | for (count = 0; str[count] != 0; count++); |
85 | if (write(1, (void * ) str, count) == count) { |
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86 | return 0; |
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87 | } |
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88 | |||
89 | return EOF; |
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90 | } |
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91 | |||
1173 | cejka | 92 | int putchar(int c) |
93 | { |
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94 | unsigned char ch = c; |
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95 | if (write(1, (void *)&ch , 1) == 1) { |
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96 | return c; |
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97 | } |
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98 | |||
99 | return EOF; |
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100 | } |
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1465 | cejka | 101 | |
102 | int getchar(void) |
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103 | { |
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104 | unsigned char c; |
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105 | if (read(0, (void *)&c , 1) == 1) { |
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106 | return c; |
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107 | } |
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108 | |||
109 | return EOF; |
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110 | } |
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111 | |||
1866 | jermar | 112 | /** @} |
1653 | cejka | 113 | */ |