1 | //vio_string.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
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5 | * |
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6 | * This file is part of libroar a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * libroar is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | * NOTE for everyone want's to change something and send patches: |
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24 | * read README and HACKING! There a addition information on |
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25 | * the license of this document you need to read before you send |
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26 | * any patches. |
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27 | * |
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28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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29 | * or libpulse*: |
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30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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31 | * and are therefore GPL. Because of this it may be illigal to use |
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32 | * them with any software that uses libesd, libartsc or libpulse*. |
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33 | */ |
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34 | |
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35 | #include "libroar.h" |
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36 | |
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37 | int roar_vio_putc (struct roar_vio_calls * vio, char c) { |
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38 | return roar_vio_write(vio, &c, 1); |
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39 | } |
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40 | |
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41 | int roar_vio_getc (struct roar_vio_calls * vio) { |
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42 | unsigned char c; |
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43 | |
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44 | if ( roar_vio_read(vio, &c, 1) != 1 ) |
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45 | return EOF; |
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46 | |
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47 | return c; |
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48 | } |
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49 | |
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50 | int roar_vio_printf(struct roar_vio_calls * vio, const char *format, ...) { |
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51 | va_list ap; |
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52 | int ret; |
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53 | char buf[8192]; |
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54 | |
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55 | va_start(ap, format); |
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56 | ret = vsnprintf(buf, 8192, format, ap); |
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57 | va_end(ap); |
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58 | |
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59 | return roar_vio_write(vio, buf, ret); |
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60 | } |
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61 | |
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62 | char * roar_vio_fgets (struct roar_vio_calls * vio, char * s, size_t size) { |
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63 | size_t have = 0; |
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64 | char cur; |
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65 | |
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66 | if ( size == 0 ) |
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67 | return s; |
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68 | |
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69 | if ( vio == NULL || s == NULL ) |
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70 | return NULL; |
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71 | |
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72 | // space for the \0 |
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73 | size -= 1; |
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74 | |
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75 | /* |
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76 | if ( roar_vio_lseek(vio, 0, SEEK_CUR) == (off_t)-1 ) { |
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77 | */ |
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78 | // need to use the one byte at a time methode |
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79 | while ( have < size ) { |
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80 | if ( roar_vio_read(vio, &cur, 1) != 1 ) |
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81 | break; |
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82 | |
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83 | s[have] = cur; |
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84 | have++; |
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85 | |
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86 | if ( cur == '\n' ) |
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87 | break; |
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88 | } |
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89 | /* |
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90 | } else { |
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91 | // can use the optimized version |
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92 | } |
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93 | */ |
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94 | |
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95 | if ( !have ) |
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96 | return NULL; |
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97 | |
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98 | s[have] = 0; |
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99 | |
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100 | return s; |
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101 | } |
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102 | |
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103 | //ll |
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