root / qemu-option.c @ 109819e0
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1 | d3f24367 | Kevin Wolf | /*
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2 | d3f24367 | Kevin Wolf | * Commandline option parsing functions
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3 | d3f24367 | Kevin Wolf | *
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4 | d3f24367 | Kevin Wolf | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | d3f24367 | Kevin Wolf | * Copyright (c) 2009 Kevin Wolf <kwolf@redhat.com>
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6 | d3f24367 | Kevin Wolf | *
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7 | d3f24367 | Kevin Wolf | * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 | d3f24367 | Kevin Wolf | * of this software and associated documentation files (the "Software"), to deal
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9 | d3f24367 | Kevin Wolf | * in the Software without restriction, including without limitation the rights
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10 | d3f24367 | Kevin Wolf | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 | d3f24367 | Kevin Wolf | * copies of the Software, and to permit persons to whom the Software is
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12 | d3f24367 | Kevin Wolf | * furnished to do so, subject to the following conditions:
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13 | d3f24367 | Kevin Wolf | *
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14 | d3f24367 | Kevin Wolf | * The above copyright notice and this permission notice shall be included in
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15 | d3f24367 | Kevin Wolf | * all copies or substantial portions of the Software.
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16 | d3f24367 | Kevin Wolf | *
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17 | d3f24367 | Kevin Wolf | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 | d3f24367 | Kevin Wolf | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 | d3f24367 | Kevin Wolf | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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20 | d3f24367 | Kevin Wolf | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 | d3f24367 | Kevin Wolf | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 | d3f24367 | Kevin Wolf | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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23 | d3f24367 | Kevin Wolf | * THE SOFTWARE.
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24 | d3f24367 | Kevin Wolf | */
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25 | d3f24367 | Kevin Wolf | |
26 | d3f24367 | Kevin Wolf | #include <stdio.h> |
27 | d3f24367 | Kevin Wolf | #include <string.h> |
28 | d3f24367 | Kevin Wolf | |
29 | d3f24367 | Kevin Wolf | #include "qemu-common.h" |
30 | d3f24367 | Kevin Wolf | #include "qemu-option.h" |
31 | d3f24367 | Kevin Wolf | |
32 | d3f24367 | Kevin Wolf | /*
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33 | d3f24367 | Kevin Wolf | * Extracts the name of an option from the parameter string (p points at the
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34 | d3f24367 | Kevin Wolf | * first byte of the option name)
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35 | d3f24367 | Kevin Wolf | *
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36 | d3f24367 | Kevin Wolf | * The option name is delimited by delim (usually , or =) or the string end
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37 | d3f24367 | Kevin Wolf | * and is copied into buf. If the option name is longer than buf_size, it is
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38 | d3f24367 | Kevin Wolf | * truncated. buf is always zero terminated.
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39 | d3f24367 | Kevin Wolf | *
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40 | d3f24367 | Kevin Wolf | * The return value is the position of the delimiter/zero byte after the option
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41 | d3f24367 | Kevin Wolf | * name in p.
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42 | d3f24367 | Kevin Wolf | */
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43 | d3f24367 | Kevin Wolf | const char *get_opt_name(char *buf, int buf_size, const char *p, char delim) |
44 | d3f24367 | Kevin Wolf | { |
45 | d3f24367 | Kevin Wolf | char *q;
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46 | d3f24367 | Kevin Wolf | |
47 | d3f24367 | Kevin Wolf | q = buf; |
48 | d3f24367 | Kevin Wolf | while (*p != '\0' && *p != delim) { |
49 | d3f24367 | Kevin Wolf | if (q && (q - buf) < buf_size - 1) |
50 | d3f24367 | Kevin Wolf | *q++ = *p; |
51 | d3f24367 | Kevin Wolf | p++; |
52 | d3f24367 | Kevin Wolf | } |
53 | d3f24367 | Kevin Wolf | if (q)
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54 | d3f24367 | Kevin Wolf | *q = '\0';
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55 | d3f24367 | Kevin Wolf | |
56 | d3f24367 | Kevin Wolf | return p;
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57 | d3f24367 | Kevin Wolf | } |
58 | d3f24367 | Kevin Wolf | |
59 | d3f24367 | Kevin Wolf | /*
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60 | d3f24367 | Kevin Wolf | * Extracts the value of an option from the parameter string p (p points at the
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61 | d3f24367 | Kevin Wolf | * first byte of the option value)
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62 | d3f24367 | Kevin Wolf | *
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63 | d3f24367 | Kevin Wolf | * This function is comparable to get_opt_name with the difference that the
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64 | d3f24367 | Kevin Wolf | * delimiter is fixed to be comma which starts a new option. To specify an
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65 | d3f24367 | Kevin Wolf | * option value that contains commas, double each comma.
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66 | d3f24367 | Kevin Wolf | */
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67 | d3f24367 | Kevin Wolf | const char *get_opt_value(char *buf, int buf_size, const char *p) |
68 | d3f24367 | Kevin Wolf | { |
69 | d3f24367 | Kevin Wolf | char *q;
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70 | d3f24367 | Kevin Wolf | |
71 | d3f24367 | Kevin Wolf | q = buf; |
72 | d3f24367 | Kevin Wolf | while (*p != '\0') { |
73 | d3f24367 | Kevin Wolf | if (*p == ',') { |
74 | d3f24367 | Kevin Wolf | if (*(p + 1) != ',') |
75 | d3f24367 | Kevin Wolf | break;
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76 | d3f24367 | Kevin Wolf | p++; |
77 | d3f24367 | Kevin Wolf | } |
78 | d3f24367 | Kevin Wolf | if (q && (q - buf) < buf_size - 1) |
79 | d3f24367 | Kevin Wolf | *q++ = *p; |
80 | d3f24367 | Kevin Wolf | p++; |
81 | d3f24367 | Kevin Wolf | } |
82 | d3f24367 | Kevin Wolf | if (q)
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83 | d3f24367 | Kevin Wolf | *q = '\0';
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84 | d3f24367 | Kevin Wolf | |
85 | d3f24367 | Kevin Wolf | return p;
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86 | d3f24367 | Kevin Wolf | } |
87 | d3f24367 | Kevin Wolf | |
88 | d3f24367 | Kevin Wolf | /*
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89 | d3f24367 | Kevin Wolf | * Searches an option list for an option with the given name
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90 | d3f24367 | Kevin Wolf | */
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91 | d3f24367 | Kevin Wolf | QEMUOptionParameter *get_option_parameter(QEMUOptionParameter *list, |
92 | d3f24367 | Kevin Wolf | const char *name) |
93 | d3f24367 | Kevin Wolf | { |
94 | d3f24367 | Kevin Wolf | while (list && list->name) {
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95 | d3f24367 | Kevin Wolf | if (!strcmp(list->name, name)) {
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96 | d3f24367 | Kevin Wolf | return list;
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97 | d3f24367 | Kevin Wolf | } |
98 | d3f24367 | Kevin Wolf | list++; |
99 | d3f24367 | Kevin Wolf | } |
100 | d3f24367 | Kevin Wolf | |
101 | d3f24367 | Kevin Wolf | return NULL; |
102 | d3f24367 | Kevin Wolf | } |
103 | d3f24367 | Kevin Wolf | |
104 | d3f24367 | Kevin Wolf | /*
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105 | d3f24367 | Kevin Wolf | * Sets the value of a parameter in a given option list. The parsing of the
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106 | d3f24367 | Kevin Wolf | * value depends on the type of option:
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107 | d3f24367 | Kevin Wolf | *
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108 | d3f24367 | Kevin Wolf | * OPT_FLAG (uses value.n):
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109 | d3f24367 | Kevin Wolf | * If no value is given, the flag is set to 1.
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110 | d3f24367 | Kevin Wolf | * Otherwise the value must be "on" (set to 1) or "off" (set to 0)
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111 | d3f24367 | Kevin Wolf | *
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112 | d3f24367 | Kevin Wolf | * OPT_STRING (uses value.s):
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113 | d3f24367 | Kevin Wolf | * value is strdup()ed and assigned as option value
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114 | d3f24367 | Kevin Wolf | *
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115 | d3f24367 | Kevin Wolf | * OPT_SIZE (uses value.n):
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116 | d3f24367 | Kevin Wolf | * The value is converted to an integer. Suffixes for kilobytes etc. are
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117 | d3f24367 | Kevin Wolf | * allowed (powers of 1024).
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118 | d3f24367 | Kevin Wolf | *
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119 | d3f24367 | Kevin Wolf | * Returns 0 on succes, -1 in error cases
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120 | d3f24367 | Kevin Wolf | */
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121 | d3f24367 | Kevin Wolf | int set_option_parameter(QEMUOptionParameter *list, const char *name, |
122 | d3f24367 | Kevin Wolf | const char *value) |
123 | d3f24367 | Kevin Wolf | { |
124 | d3f24367 | Kevin Wolf | // Find a matching parameter
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125 | d3f24367 | Kevin Wolf | list = get_option_parameter(list, name); |
126 | d3f24367 | Kevin Wolf | if (list == NULL) { |
127 | d3f24367 | Kevin Wolf | fprintf(stderr, "Unknown option '%s'\n", name);
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128 | d3f24367 | Kevin Wolf | return -1; |
129 | d3f24367 | Kevin Wolf | } |
130 | d3f24367 | Kevin Wolf | |
131 | d3f24367 | Kevin Wolf | // Process parameter
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132 | d3f24367 | Kevin Wolf | switch (list->type) {
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133 | d3f24367 | Kevin Wolf | case OPT_FLAG:
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134 | d3f24367 | Kevin Wolf | if (value != NULL) { |
135 | d3f24367 | Kevin Wolf | if (!strcmp(value, "on")) { |
136 | d3f24367 | Kevin Wolf | list->value.n = 1;
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137 | d3f24367 | Kevin Wolf | } else if (!strcmp(value, "off")) { |
138 | d3f24367 | Kevin Wolf | list->value.n = 0;
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139 | d3f24367 | Kevin Wolf | } else {
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140 | d3f24367 | Kevin Wolf | fprintf(stderr, "Option '%s': Use 'on' or 'off'\n", name);
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141 | d3f24367 | Kevin Wolf | return -1; |
142 | d3f24367 | Kevin Wolf | } |
143 | d3f24367 | Kevin Wolf | } else {
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144 | d3f24367 | Kevin Wolf | list->value.n = 1;
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145 | d3f24367 | Kevin Wolf | } |
146 | d3f24367 | Kevin Wolf | break;
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147 | d3f24367 | Kevin Wolf | |
148 | d3f24367 | Kevin Wolf | case OPT_STRING:
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149 | d3f24367 | Kevin Wolf | if (value != NULL) { |
150 | d3f24367 | Kevin Wolf | list->value.s = strdup(value); |
151 | d3f24367 | Kevin Wolf | } else {
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152 | d3f24367 | Kevin Wolf | fprintf(stderr, "Option '%s' needs a parameter\n", name);
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153 | d3f24367 | Kevin Wolf | return -1; |
154 | d3f24367 | Kevin Wolf | } |
155 | d3f24367 | Kevin Wolf | break;
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156 | d3f24367 | Kevin Wolf | |
157 | d3f24367 | Kevin Wolf | case OPT_SIZE:
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158 | d3f24367 | Kevin Wolf | if (value != NULL) { |
159 | d3f24367 | Kevin Wolf | double sizef = strtod(value, (char**) &value); |
160 | d3f24367 | Kevin Wolf | |
161 | d3f24367 | Kevin Wolf | switch (*value) {
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162 | d3f24367 | Kevin Wolf | case 'T': |
163 | d3f24367 | Kevin Wolf | sizef *= 1024;
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164 | d3f24367 | Kevin Wolf | case 'G': |
165 | d3f24367 | Kevin Wolf | sizef *= 1024;
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166 | d3f24367 | Kevin Wolf | case 'M': |
167 | d3f24367 | Kevin Wolf | sizef *= 1024;
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168 | d3f24367 | Kevin Wolf | case 'K': |
169 | d3f24367 | Kevin Wolf | case 'k': |
170 | d3f24367 | Kevin Wolf | sizef *= 1024;
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171 | d3f24367 | Kevin Wolf | case 'b': |
172 | d3f24367 | Kevin Wolf | case '\0': |
173 | d3f24367 | Kevin Wolf | list->value.n = (uint64_t) sizef; |
174 | d3f24367 | Kevin Wolf | break;
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175 | d3f24367 | Kevin Wolf | default:
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176 | d3f24367 | Kevin Wolf | fprintf(stderr, "Option '%s' needs size as parameter\n", name);
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177 | d3f24367 | Kevin Wolf | fprintf(stderr, "You may use k, M, G or T suffixes for "
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178 | d3f24367 | Kevin Wolf | "kilobytes, megabytes, gigabytes and terabytes.\n");
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179 | d3f24367 | Kevin Wolf | return -1; |
180 | d3f24367 | Kevin Wolf | } |
181 | d3f24367 | Kevin Wolf | } else {
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182 | d3f24367 | Kevin Wolf | fprintf(stderr, "Option '%s' needs a parameter\n", name);
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183 | d3f24367 | Kevin Wolf | return -1; |
184 | d3f24367 | Kevin Wolf | } |
185 | d3f24367 | Kevin Wolf | break;
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186 | d3f24367 | Kevin Wolf | default:
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187 | d3f24367 | Kevin Wolf | fprintf(stderr, "Bug: Option '%s' has an unknown type\n", name);
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188 | d3f24367 | Kevin Wolf | return -1; |
189 | d3f24367 | Kevin Wolf | } |
190 | d3f24367 | Kevin Wolf | |
191 | d3f24367 | Kevin Wolf | return 0; |
192 | d3f24367 | Kevin Wolf | } |
193 | d3f24367 | Kevin Wolf | |
194 | d3f24367 | Kevin Wolf | /*
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195 | d3f24367 | Kevin Wolf | * Sets the given parameter to an integer instead of a string.
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196 | d3f24367 | Kevin Wolf | * This function cannot be used to set string options.
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197 | d3f24367 | Kevin Wolf | *
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198 | d3f24367 | Kevin Wolf | * Returns 0 on success, -1 in error cases
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199 | d3f24367 | Kevin Wolf | */
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200 | d3f24367 | Kevin Wolf | int set_option_parameter_int(QEMUOptionParameter *list, const char *name, |
201 | d3f24367 | Kevin Wolf | uint64_t value) |
202 | d3f24367 | Kevin Wolf | { |
203 | d3f24367 | Kevin Wolf | // Find a matching parameter
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204 | d3f24367 | Kevin Wolf | list = get_option_parameter(list, name); |
205 | d3f24367 | Kevin Wolf | if (list == NULL) { |
206 | d3f24367 | Kevin Wolf | fprintf(stderr, "Unknown option '%s'\n", name);
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207 | d3f24367 | Kevin Wolf | return -1; |
208 | d3f24367 | Kevin Wolf | } |
209 | d3f24367 | Kevin Wolf | |
210 | d3f24367 | Kevin Wolf | // Process parameter
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211 | d3f24367 | Kevin Wolf | switch (list->type) {
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212 | d3f24367 | Kevin Wolf | case OPT_FLAG:
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213 | d3f24367 | Kevin Wolf | case OPT_NUMBER:
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214 | d3f24367 | Kevin Wolf | case OPT_SIZE:
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215 | d3f24367 | Kevin Wolf | list->value.n = value; |
216 | d3f24367 | Kevin Wolf | break;
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217 | d3f24367 | Kevin Wolf | |
218 | d3f24367 | Kevin Wolf | default:
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219 | d3f24367 | Kevin Wolf | return -1; |
220 | d3f24367 | Kevin Wolf | } |
221 | d3f24367 | Kevin Wolf | |
222 | d3f24367 | Kevin Wolf | return 0; |
223 | d3f24367 | Kevin Wolf | } |
224 | d3f24367 | Kevin Wolf | |
225 | d3f24367 | Kevin Wolf | /*
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226 | d3f24367 | Kevin Wolf | * Frees a option list. If it contains strings, the strings are freed as well.
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227 | d3f24367 | Kevin Wolf | */
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228 | d3f24367 | Kevin Wolf | void free_option_parameters(QEMUOptionParameter *list)
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229 | d3f24367 | Kevin Wolf | { |
230 | d3f24367 | Kevin Wolf | QEMUOptionParameter *cur = list; |
231 | d3f24367 | Kevin Wolf | |
232 | d3f24367 | Kevin Wolf | while (cur && cur->name) {
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233 | d3f24367 | Kevin Wolf | if (cur->type == OPT_STRING) {
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234 | d3f24367 | Kevin Wolf | free(cur->value.s); |
235 | d3f24367 | Kevin Wolf | } |
236 | d3f24367 | Kevin Wolf | cur++; |
237 | d3f24367 | Kevin Wolf | } |
238 | d3f24367 | Kevin Wolf | |
239 | d3f24367 | Kevin Wolf | free(list); |
240 | d3f24367 | Kevin Wolf | } |
241 | d3f24367 | Kevin Wolf | |
242 | d3f24367 | Kevin Wolf | /*
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243 | d3f24367 | Kevin Wolf | * Parses a parameter string (param) into an option list (dest).
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244 | d3f24367 | Kevin Wolf | *
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245 | d3f24367 | Kevin Wolf | * list is the templace is. If dest is NULL, a new copy of list is created for
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246 | d3f24367 | Kevin Wolf | * it. If list is NULL, this function fails.
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247 | d3f24367 | Kevin Wolf | *
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248 | d3f24367 | Kevin Wolf | * A parameter string consists of one or more parameters, separated by commas.
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249 | d3f24367 | Kevin Wolf | * Each parameter consists of its name and possibly of a value. In the latter
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250 | d3f24367 | Kevin Wolf | * case, the value is delimited by an = character. To specify a value which
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251 | d3f24367 | Kevin Wolf | * contains commas, double each comma so it won't be recognized as the end of
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252 | d3f24367 | Kevin Wolf | * the parameter.
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253 | d3f24367 | Kevin Wolf | *
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254 | d3f24367 | Kevin Wolf | * For more details of the parsing see above.
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255 | d3f24367 | Kevin Wolf | *
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256 | d3f24367 | Kevin Wolf | * Returns a pointer to the first element of dest (or the newly allocated copy)
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257 | d3f24367 | Kevin Wolf | * or NULL in error cases
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258 | d3f24367 | Kevin Wolf | */
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259 | d3f24367 | Kevin Wolf | QEMUOptionParameter *parse_option_parameters(const char *param, |
260 | d3f24367 | Kevin Wolf | QEMUOptionParameter *list, QEMUOptionParameter *dest) |
261 | d3f24367 | Kevin Wolf | { |
262 | d3f24367 | Kevin Wolf | QEMUOptionParameter *cur; |
263 | d3f24367 | Kevin Wolf | QEMUOptionParameter *allocated = NULL;
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264 | d3f24367 | Kevin Wolf | char name[256]; |
265 | d3f24367 | Kevin Wolf | char value[256]; |
266 | d3f24367 | Kevin Wolf | char *param_delim, *value_delim;
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267 | d3f24367 | Kevin Wolf | char next_delim;
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268 | d3f24367 | Kevin Wolf | size_t num_options; |
269 | d3f24367 | Kevin Wolf | |
270 | d3f24367 | Kevin Wolf | if (list == NULL) { |
271 | d3f24367 | Kevin Wolf | return NULL; |
272 | d3f24367 | Kevin Wolf | } |
273 | d3f24367 | Kevin Wolf | |
274 | d3f24367 | Kevin Wolf | if (dest == NULL) { |
275 | d3f24367 | Kevin Wolf | // Count valid options
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276 | d3f24367 | Kevin Wolf | num_options = 0;
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277 | d3f24367 | Kevin Wolf | cur = list; |
278 | d3f24367 | Kevin Wolf | while (cur->name) {
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279 | d3f24367 | Kevin Wolf | num_options++; |
280 | d3f24367 | Kevin Wolf | cur++; |
281 | d3f24367 | Kevin Wolf | } |
282 | d3f24367 | Kevin Wolf | |
283 | d3f24367 | Kevin Wolf | // Create a copy of the option list to fill in values
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284 | d3f24367 | Kevin Wolf | dest = qemu_mallocz((num_options + 1) * sizeof(QEMUOptionParameter)); |
285 | d3f24367 | Kevin Wolf | allocated = dest; |
286 | d3f24367 | Kevin Wolf | memcpy(dest, list, (num_options + 1) * sizeof(QEMUOptionParameter)); |
287 | d3f24367 | Kevin Wolf | } |
288 | d3f24367 | Kevin Wolf | |
289 | d3f24367 | Kevin Wolf | while (*param) {
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290 | d3f24367 | Kevin Wolf | |
291 | d3f24367 | Kevin Wolf | // Find parameter name and value in the string
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292 | d3f24367 | Kevin Wolf | param_delim = strchr(param, ',');
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293 | d3f24367 | Kevin Wolf | value_delim = strchr(param, '=');
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294 | d3f24367 | Kevin Wolf | |
295 | d3f24367 | Kevin Wolf | if (value_delim && (value_delim < param_delim || !param_delim)) {
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296 | d3f24367 | Kevin Wolf | next_delim = '=';
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297 | d3f24367 | Kevin Wolf | } else {
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298 | d3f24367 | Kevin Wolf | next_delim = ',';
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299 | d3f24367 | Kevin Wolf | value_delim = NULL;
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300 | d3f24367 | Kevin Wolf | } |
301 | d3f24367 | Kevin Wolf | |
302 | d3f24367 | Kevin Wolf | param = get_opt_name(name, sizeof(name), param, next_delim);
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303 | d3f24367 | Kevin Wolf | if (value_delim) {
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304 | d3f24367 | Kevin Wolf | param = get_opt_value(value, sizeof(value), param + 1); |
305 | d3f24367 | Kevin Wolf | } |
306 | d3f24367 | Kevin Wolf | if (*param != '\0') { |
307 | d3f24367 | Kevin Wolf | param++; |
308 | d3f24367 | Kevin Wolf | } |
309 | d3f24367 | Kevin Wolf | |
310 | d3f24367 | Kevin Wolf | // Set the parameter
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311 | d3f24367 | Kevin Wolf | if (set_option_parameter(dest, name, value_delim ? value : NULL)) { |
312 | d3f24367 | Kevin Wolf | goto fail;
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313 | d3f24367 | Kevin Wolf | } |
314 | d3f24367 | Kevin Wolf | } |
315 | d3f24367 | Kevin Wolf | |
316 | d3f24367 | Kevin Wolf | return dest;
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317 | d3f24367 | Kevin Wolf | |
318 | d3f24367 | Kevin Wolf | fail:
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319 | d3f24367 | Kevin Wolf | // Only free the list if it was newly allocated
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320 | d3f24367 | Kevin Wolf | free_option_parameters(allocated); |
321 | d3f24367 | Kevin Wolf | return NULL; |
322 | d3f24367 | Kevin Wolf | } |
323 | d3f24367 | Kevin Wolf | |
324 | d3f24367 | Kevin Wolf | /*
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325 | d3f24367 | Kevin Wolf | * Prints all options of a list that have a value to stdout
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326 | d3f24367 | Kevin Wolf | */
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327 | d3f24367 | Kevin Wolf | void print_option_parameters(QEMUOptionParameter *list)
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328 | d3f24367 | Kevin Wolf | { |
329 | d3f24367 | Kevin Wolf | while (list && list->name) {
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330 | d3f24367 | Kevin Wolf | switch (list->type) {
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331 | d3f24367 | Kevin Wolf | case OPT_STRING:
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332 | d3f24367 | Kevin Wolf | if (list->value.s != NULL) { |
333 | d3f24367 | Kevin Wolf | printf("%s='%s' ", list->name, list->value.s);
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334 | d3f24367 | Kevin Wolf | } |
335 | d3f24367 | Kevin Wolf | break;
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336 | d3f24367 | Kevin Wolf | case OPT_FLAG:
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337 | d3f24367 | Kevin Wolf | printf("%s=%s ", list->name, list->value.n ? "on" : "off"); |
338 | d3f24367 | Kevin Wolf | break;
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339 | d3f24367 | Kevin Wolf | case OPT_SIZE:
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340 | d3f24367 | Kevin Wolf | case OPT_NUMBER:
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341 | d3f24367 | Kevin Wolf | printf("%s=%" PRId64 " ", list->name, list->value.n); |
342 | d3f24367 | Kevin Wolf | break;
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343 | d3f24367 | Kevin Wolf | default:
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344 | d3f24367 | Kevin Wolf | printf("%s=(unkown type) ", list->name);
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345 | d3f24367 | Kevin Wolf | break;
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346 | d3f24367 | Kevin Wolf | } |
347 | d3f24367 | Kevin Wolf | list++; |
348 | d3f24367 | Kevin Wolf | } |
349 | d3f24367 | Kevin Wolf | } |
350 | db08adf5 | Kevin Wolf | |
351 | db08adf5 | Kevin Wolf | /*
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352 | db08adf5 | Kevin Wolf | * Prints an overview of all available options
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353 | db08adf5 | Kevin Wolf | */
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354 | db08adf5 | Kevin Wolf | void print_option_help(QEMUOptionParameter *list)
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355 | db08adf5 | Kevin Wolf | { |
356 | db08adf5 | Kevin Wolf | printf("Supported options:\n");
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357 | db08adf5 | Kevin Wolf | while (list && list->name) {
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358 | db08adf5 | Kevin Wolf | printf("%-16s %s\n", list->name,
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359 | db08adf5 | Kevin Wolf | list->help ? list->help : "No description available");
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360 | db08adf5 | Kevin Wolf | list++; |
361 | db08adf5 | Kevin Wolf | } |
362 | db08adf5 | Kevin Wolf | } |