1 | /* |
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2 | This file is part of MutekP. |
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3 | |
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4 | MutekP is free software; you can redistribute it and/or modify it |
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5 | under the terms of the GNU General Public License as published by |
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6 | the Free Software Foundation; either version 2 of the License, or |
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7 | (at your option) any later version. |
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8 | |
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9 | MutekP is distributed in the hope that it will be useful, but |
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10 | WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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12 | General Public License for more details. |
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13 | |
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14 | You should have received a copy of the GNU General Public License |
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15 | along with MutekP; if not, write to the Free Software Foundation, |
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16 | Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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17 | |
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18 | UPMC / LIP6 / SOC (c) 2007 |
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19 | */ |
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20 | |
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21 | /* |
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22 | revision 1.2.1 2007/11/11 18:54:23 ghassan |
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23 | rename iprintf to __iprintk, it's a copy of iprintf called on system level. |
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24 | |
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25 | stdio of the ghost of libc |
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26 | Developped by Denis Hommais and Frédéric Pétrot |
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27 | $Log: iprintf.c,v $ |
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28 | Revision 1.2 2003/07/01 13:40:46 fred |
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29 | Supports the %u and doesnt core anymore on an unrecognized char |
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30 | following a % |
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31 | |
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32 | Revision 1.1.1.1 2002/02/28 12:58:56 disydent |
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33 | Creation of Disydent CVS Tree |
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34 | |
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35 | Revision 1.1 2001/11/22 15:07:36 fred |
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36 | Adding the iprintf function that does the formatting, and removes all |
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37 | the old stuff hanging around. |
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38 | |
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39 | $Id: iprintf.c,v 1.2 2003/07/01 13:40:46 fred Exp $ |
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40 | Made up this file to centralize the printf behavior |
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41 | */ |
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42 | |
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43 | #include <stdarg.h> |
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44 | #include <libk.h> |
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45 | |
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46 | /* Handling of the printf internals |
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47 | * Addr is either the buffer or the tty addrs |
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48 | * inc is 0 for a tty and 1 for a buffer |
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49 | * Other arguments are self explanatory |
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50 | */ |
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51 | |
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52 | #define SIZE_OF_BUF 16 |
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53 | int iprintk (char *addr, int inc, const char *fmt, va_list ap) |
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54 | { |
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55 | register char *tmp; |
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56 | int val, i = 0, count = 0; |
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57 | char buf[SIZE_OF_BUF], *xdigit; |
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58 | |
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59 | while (*fmt) |
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60 | { |
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61 | while ((*fmt != '%') && (*fmt)) |
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62 | { |
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63 | *addr = *fmt++; |
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64 | addr += inc; |
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65 | count++; |
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66 | } |
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67 | if (*fmt) |
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68 | { |
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69 | fmt++; |
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70 | switch (*fmt) |
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71 | { |
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72 | case '%': |
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73 | *addr = '%'; |
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74 | addr += inc; |
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75 | count++; |
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76 | goto next; |
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77 | case 'c': |
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78 | *addr = va_arg (ap, int); |
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79 | addr += inc; |
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80 | count++; |
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81 | goto next; |
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82 | case 'd': |
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83 | case 'i': |
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84 | val = va_arg (ap, int); |
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85 | if (val < 0) |
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86 | { |
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87 | val = -val; |
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88 | *addr = '-'; |
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89 | addr += inc; |
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90 | count++; |
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91 | } |
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92 | tmp = buf + SIZE_OF_BUF; |
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93 | *--tmp = '\0'; |
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94 | do |
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95 | { |
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96 | *--tmp = val % 10 + '0'; |
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97 | val /= 10; |
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98 | } |
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99 | while (val); |
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100 | break; |
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101 | case 'u': |
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102 | val = va_arg (ap, unsigned int); |
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103 | tmp = buf + SIZE_OF_BUF; |
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104 | *--tmp = '\0'; |
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105 | do |
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106 | { |
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107 | *--tmp = val % 10 + '0'; |
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108 | val /= 10; |
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109 | } |
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110 | while (val); |
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111 | break; |
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112 | case 'o': |
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113 | val = va_arg (ap, int); |
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114 | tmp = buf + SIZE_OF_BUF; |
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115 | *--tmp = '\0'; |
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116 | do |
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117 | { |
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118 | *--tmp = (val & 7) + '0'; |
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119 | val = (unsigned int) val >> 3; |
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120 | } |
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121 | while (val); |
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122 | break; |
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123 | case 's': |
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124 | tmp = va_arg (ap, char *); |
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125 | if (!tmp) |
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126 | tmp = "empty str"; |
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127 | break; |
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128 | case 'p': |
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129 | case 'x': |
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130 | case 'X': |
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131 | val = va_arg (ap, int); |
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132 | tmp = buf + SIZE_OF_BUF; |
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133 | *--tmp = '\0'; |
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134 | if (*fmt != 'X') |
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135 | xdigit = "0123456789abcdef"; |
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136 | else |
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137 | xdigit = "0123456789ABCDEF"; |
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138 | do |
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139 | { |
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140 | *--tmp = xdigit[val & 15]; |
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141 | val = (unsigned int) val >> 4; |
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142 | i++; |
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143 | } |
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144 | while (val); |
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145 | if (*fmt == 'p') |
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146 | while (i < 8) |
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147 | { |
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148 | *--tmp = xdigit[0]; |
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149 | i++; |
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150 | } |
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151 | break; |
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152 | default: |
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153 | *addr = *fmt; |
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154 | count++; |
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155 | goto next; |
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156 | } |
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157 | while (*tmp) |
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158 | { |
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159 | *addr = *tmp++; |
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160 | addr += inc; |
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161 | count++; |
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162 | } |
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163 | next: |
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164 | fmt++; |
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165 | } |
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166 | } |
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167 | va_end (ap); |
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168 | return count; |
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169 | } |
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