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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 Jakub Jermar |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /** @addtogroup genericconsole |
29 | /** @addtogroup genericconsole |
| 30 | * @{ |
30 | * @{ |
| 31 | */ |
31 | */ |
| 32 | 32 | ||
| 33 | /** |
33 | /** |
| 34 | * @file kconsole.c |
34 | * @file kconsole.c |
| 35 | * @brief Kernel console. |
35 | * @brief Kernel console. |
| 36 | * |
36 | * |
| 37 | * This file contains kernel thread managing the kernel console. |
37 | * This file contains kernel thread managing the kernel console. |
| 38 | */ |
38 | */ |
| 39 | 39 | ||
| 40 | #include <console/kconsole.h> |
40 | #include <console/kconsole.h> |
| 41 | #include <console/console.h> |
41 | #include <console/console.h> |
| 42 | #include <console/chardev.h> |
42 | #include <console/chardev.h> |
| 43 | #include <console/cmd.h> |
43 | #include <console/cmd.h> |
| 44 | #include <print.h> |
44 | #include <print.h> |
| 45 | #include <panic.h> |
45 | #include <panic.h> |
| 46 | #include <arch/types.h> |
46 | #include <arch/types.h> |
| 47 | #include <adt/list.h> |
47 | #include <adt/list.h> |
| 48 | #include <arch.h> |
48 | #include <arch.h> |
| 49 | #include <macros.h> |
49 | #include <macros.h> |
| 50 | #include <debug.h> |
50 | #include <debug.h> |
| 51 | #include <func.h> |
51 | #include <func.h> |
| 52 | #include <symtab.h> |
52 | #include <symtab.h> |
| 53 | #include <macros.h> |
53 | #include <macros.h> |
| 54 | 54 | ||
| 55 | /** Simple kernel console. |
55 | /** Simple kernel console. |
| 56 | * |
56 | * |
| 57 | * The console is realized by kernel thread kconsole. |
57 | * The console is realized by kernel thread kconsole. |
| 58 | * It doesn't understand any useful command on its own, |
58 | * It doesn't understand any useful command on its own, |
| 59 | * but makes it possible for other kernel subsystems to |
59 | * but makes it possible for other kernel subsystems to |
| 60 | * register their own commands. |
60 | * register their own commands. |
| 61 | */ |
61 | */ |
| 62 | 62 | ||
| 63 | /** Locking. |
63 | /** Locking. |
| 64 | * |
64 | * |
| 65 | * There is a list of cmd_info_t structures. This list |
65 | * There is a list of cmd_info_t structures. This list |
| 66 | * is protected by cmd_lock spinlock. Note that specially |
66 | * is protected by cmd_lock spinlock. Note that specially |
| 67 | * the link elements of cmd_info_t are protected by |
67 | * the link elements of cmd_info_t are protected by |
| 68 | * this lock. |
68 | * this lock. |
| 69 | * |
69 | * |
| 70 | * Each cmd_info_t also has its own lock, which protects |
70 | * Each cmd_info_t also has its own lock, which protects |
| 71 | * all elements thereof except the link element. |
71 | * all elements thereof except the link element. |
| 72 | * |
72 | * |
| 73 | * cmd_lock must be acquired before any cmd_info lock. |
73 | * cmd_lock must be acquired before any cmd_info lock. |
| 74 | * When locking two cmd info structures, structure with |
74 | * When locking two cmd info structures, structure with |
| 75 | * lower address must be locked first. |
75 | * lower address must be locked first. |
| 76 | */ |
76 | */ |
| 77 | 77 | ||
| 78 | SPINLOCK_INITIALIZE(cmd_lock); /**< Lock protecting command list. */ |
78 | SPINLOCK_INITIALIZE(cmd_lock); /**< Lock protecting command list. */ |
| 79 | LIST_INITIALIZE(cmd_head); /**< Command list. */ |
79 | LIST_INITIALIZE(cmd_head); /**< Command list. */ |
| 80 | 80 | ||
| 81 | static cmd_info_t *parse_cmdline(char *cmdline, size_t len); |
81 | static cmd_info_t *parse_cmdline(char *cmdline, size_t len); |
| 82 | static bool parse_argument(char *cmdline, size_t len, index_t *start, |
82 | static bool parse_argument(char *cmdline, size_t len, index_t *start, |
| 83 | index_t *end); |
83 | index_t *end); |
| 84 | static char history[KCONSOLE_HISTORY][MAX_CMDLINE] = {}; |
84 | static char history[KCONSOLE_HISTORY][MAX_CMDLINE] = {}; |
| 85 | 85 | ||
| 86 | /** Initialize kconsole data structures. */ |
86 | /** Initialize kconsole data structures. */ |
| 87 | void kconsole_init(void) |
87 | void kconsole_init(void) |
| 88 | { |
88 | { |
| 89 | int i; |
89 | int i; |
| 90 | 90 | ||
| 91 | cmd_init(); |
91 | cmd_init(); |
| 92 | for (i = 0; i < KCONSOLE_HISTORY; i++) |
92 | for (i = 0; i < KCONSOLE_HISTORY; i++) |
| 93 | history[i][0] = '\0'; |
93 | history[i][0] = '\0'; |
| 94 | } |
94 | } |
| 95 | 95 | ||
| 96 | 96 | ||
| 97 | /** Register kconsole command. |
97 | /** Register kconsole command. |
| 98 | * |
98 | * |
| 99 | * @param cmd Structure describing the command. |
99 | * @param cmd Structure describing the command. |
| 100 | * |
100 | * |
| 101 | * @return 0 on failure, 1 on success. |
101 | * @return 0 on failure, 1 on success. |
| 102 | */ |
102 | */ |
| 103 | int cmd_register(cmd_info_t *cmd) |
103 | int cmd_register(cmd_info_t *cmd) |
| 104 | { |
104 | { |
| 105 | link_t *cur; |
105 | link_t *cur; |
| 106 | 106 | ||
| 107 | spinlock_lock(&cmd_lock); |
107 | spinlock_lock(&cmd_lock); |
| 108 | 108 | ||
| 109 | /* |
109 | /* |
| 110 | * Make sure the command is not already listed. |
110 | * Make sure the command is not already listed. |
| 111 | */ |
111 | */ |
| 112 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
112 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
| 113 | cmd_info_t *hlp; |
113 | cmd_info_t *hlp; |
| 114 | 114 | ||
| 115 | hlp = list_get_instance(cur, cmd_info_t, link); |
115 | hlp = list_get_instance(cur, cmd_info_t, link); |
| 116 | 116 | ||
| 117 | if (hlp == cmd) { |
117 | if (hlp == cmd) { |
| 118 | /* The command is already there. */ |
118 | /* The command is already there. */ |
| 119 | spinlock_unlock(&cmd_lock); |
119 | spinlock_unlock(&cmd_lock); |
| 120 | return 0; |
120 | return 0; |
| 121 | } |
121 | } |
| 122 | 122 | ||
| 123 | /* Avoid deadlock. */ |
123 | /* Avoid deadlock. */ |
| 124 | if (hlp < cmd) { |
124 | if (hlp < cmd) { |
| 125 | spinlock_lock(&hlp->lock); |
125 | spinlock_lock(&hlp->lock); |
| 126 | spinlock_lock(&cmd->lock); |
126 | spinlock_lock(&cmd->lock); |
| 127 | } else { |
127 | } else { |
| 128 | spinlock_lock(&cmd->lock); |
128 | spinlock_lock(&cmd->lock); |
| 129 | spinlock_lock(&hlp->lock); |
129 | spinlock_lock(&hlp->lock); |
| 130 | } |
130 | } |
| 131 | if ((strncmp(hlp->name, cmd->name, max(strlen(cmd->name), |
131 | if ((strncmp(hlp->name, cmd->name, max(strlen(cmd->name), |
| 132 | strlen(hlp->name))) == 0)) { |
132 | strlen(hlp->name))) == 0)) { |
| 133 | /* The command is already there. */ |
133 | /* The command is already there. */ |
| 134 | spinlock_unlock(&hlp->lock); |
134 | spinlock_unlock(&hlp->lock); |
| 135 | spinlock_unlock(&cmd->lock); |
135 | spinlock_unlock(&cmd->lock); |
| 136 | spinlock_unlock(&cmd_lock); |
136 | spinlock_unlock(&cmd_lock); |
| 137 | return 0; |
137 | return 0; |
| 138 | } |
138 | } |
| 139 | 139 | ||
| 140 | spinlock_unlock(&hlp->lock); |
140 | spinlock_unlock(&hlp->lock); |
| 141 | spinlock_unlock(&cmd->lock); |
141 | spinlock_unlock(&cmd->lock); |
| 142 | } |
142 | } |
| 143 | 143 | ||
| 144 | /* |
144 | /* |
| 145 | * Now the command can be added. |
145 | * Now the command can be added. |
| 146 | */ |
146 | */ |
| 147 | list_append(&cmd->link, &cmd_head); |
147 | list_append(&cmd->link, &cmd_head); |
| 148 | 148 | ||
| 149 | spinlock_unlock(&cmd_lock); |
149 | spinlock_unlock(&cmd_lock); |
| 150 | return 1; |
150 | return 1; |
| 151 | } |
151 | } |
| 152 | 152 | ||
| 153 | /** Print count times a character */ |
153 | /** Print count times a character */ |
| 154 | static void rdln_print_c(char ch, int count) |
154 | static void rdln_print_c(char ch, int count) |
| 155 | { |
155 | { |
| 156 | int i; |
156 | int i; |
| 157 | for (i = 0; i < count; i++) |
157 | for (i = 0; i < count; i++) |
| 158 | putchar(ch); |
158 | putchar(ch); |
| 159 | } |
159 | } |
| 160 | 160 | ||
| 161 | /** Insert character to string */ |
161 | /** Insert character to string */ |
| 162 | static void insert_char(char *str, char ch, int pos) |
162 | static void insert_char(char *str, char ch, int pos) |
| 163 | { |
163 | { |
| 164 | int i; |
164 | int i; |
| 165 | 165 | ||
| 166 | for (i = strlen(str); i > pos; i--) |
166 | for (i = strlen(str); i > pos; i--) |
| 167 | str[i] = str[i - 1]; |
167 | str[i] = str[i - 1]; |
| 168 | str[pos] = ch; |
168 | str[pos] = ch; |
| 169 | } |
169 | } |
| 170 | 170 | ||
| 171 | /** Try to find a command beginning with prefix */ |
171 | /** Try to find a command beginning with prefix */ |
| 172 | static const char *cmdtab_search_one(const char *name,link_t **startpos) |
172 | static const char *cmdtab_search_one(const char *name,link_t **startpos) |
| 173 | { |
173 | { |
| 174 | size_t namelen = strlen(name); |
174 | size_t namelen = strlen(name); |
| 175 | const char *curname; |
175 | const char *curname; |
| 176 | 176 | ||
| 177 | spinlock_lock(&cmd_lock); |
177 | spinlock_lock(&cmd_lock); |
| 178 | 178 | ||
| 179 | if (!*startpos) |
179 | if (!*startpos) |
| 180 | *startpos = cmd_head.next; |
180 | *startpos = cmd_head.next; |
| 181 | 181 | ||
| 182 | for (; *startpos != &cmd_head; *startpos = (*startpos)->next) { |
182 | for (; *startpos != &cmd_head; *startpos = (*startpos)->next) { |
| 183 | cmd_info_t *hlp; |
183 | cmd_info_t *hlp; |
| 184 | hlp = list_get_instance(*startpos, cmd_info_t, link); |
184 | hlp = list_get_instance(*startpos, cmd_info_t, link); |
| 185 | 185 | ||
| 186 | curname = hlp->name; |
186 | curname = hlp->name; |
| 187 | if (strlen(curname) < namelen) |
187 | if (strlen(curname) < namelen) |
| 188 | continue; |
188 | continue; |
| 189 | if (strncmp(curname, name, namelen) == 0) { |
189 | if (strncmp(curname, name, namelen) == 0) { |
| 190 | spinlock_unlock(&cmd_lock); |
190 | spinlock_unlock(&cmd_lock); |
| 191 | return curname+namelen; |
191 | return curname+namelen; |
| 192 | } |
192 | } |
| 193 | } |
193 | } |
| 194 | spinlock_unlock(&cmd_lock); |
194 | spinlock_unlock(&cmd_lock); |
| 195 | return NULL; |
195 | return NULL; |
| 196 | } |
196 | } |
| 197 | 197 | ||
| 198 | 198 | ||
| 199 | /** Command completion of the commands |
199 | /** Command completion of the commands |
| 200 | * |
200 | * |
| 201 | * @param name - string to match, changed to hint on exit |
201 | * @param name - string to match, changed to hint on exit |
| 202 | * @return number of found matches |
202 | * @return number of found matches |
| 203 | */ |
203 | */ |
| 204 | static int cmdtab_compl(char *name) |
204 | static int cmdtab_compl(char *name) |
| 205 | { |
205 | { |
| 206 | static char output[MAX_SYMBOL_NAME + 1]; |
206 | static char output[MAX_SYMBOL_NAME + 1]; |
| 207 | link_t *startpos = NULL; |
207 | link_t *startpos = NULL; |
| 208 | const char *foundtxt; |
208 | const char *foundtxt; |
| 209 | int found = 0; |
209 | int found = 0; |
| 210 | int i; |
210 | int i; |
| 211 | 211 | ||
| 212 | output[0] = '\0'; |
212 | output[0] = '\0'; |
| 213 | while ((foundtxt = cmdtab_search_one(name, &startpos))) { |
213 | while ((foundtxt = cmdtab_search_one(name, &startpos))) { |
| 214 | startpos = startpos->next; |
214 | startpos = startpos->next; |
| 215 | if (!found) |
215 | if (!found) |
| 216 | strncpy(output, foundtxt, strlen(foundtxt) + 1); |
216 | strncpy(output, foundtxt, strlen(foundtxt) + 1); |
| 217 | else { |
217 | else { |
| 218 | for (i = 0; output[i] && foundtxt[i] && |
218 | for (i = 0; output[i] && foundtxt[i] && |
| 219 | output[i] == foundtxt[i]; i++) |
219 | output[i] == foundtxt[i]; i++) |
| 220 | ; |
220 | ; |
| 221 | output[i] = '\0'; |
221 | output[i] = '\0'; |
| 222 | } |
222 | } |
| 223 | found++; |
223 | found++; |
| 224 | } |
224 | } |
| 225 | if (!found) |
225 | if (!found) |
| 226 | return 0; |
226 | return 0; |
| 227 | 227 | ||
| 228 | if (found > 1 && !strlen(output)) { |
228 | if (found > 1 && !strlen(output)) { |
| 229 | printf("\n"); |
229 | printf("\n"); |
| 230 | startpos = NULL; |
230 | startpos = NULL; |
| 231 | while ((foundtxt = cmdtab_search_one(name, &startpos))) { |
231 | while ((foundtxt = cmdtab_search_one(name, &startpos))) { |
| 232 | cmd_info_t *hlp; |
232 | cmd_info_t *hlp; |
| 233 | hlp = list_get_instance(startpos, cmd_info_t, link); |
233 | hlp = list_get_instance(startpos, cmd_info_t, link); |
| 234 | printf("%s - %s\n", hlp->name, hlp->description); |
234 | printf("%s - %s\n", hlp->name, hlp->description); |
| 235 | startpos = startpos->next; |
235 | startpos = startpos->next; |
| 236 | } |
236 | } |
| 237 | } |
237 | } |
| 238 | strncpy(name, output, MAX_SYMBOL_NAME); |
238 | strncpy(name, output, MAX_SYMBOL_NAME); |
| 239 | return found; |
239 | return found; |
| 240 | 240 | ||
| 241 | } |
241 | } |
| 242 | 242 | ||
| 243 | static char *clever_readline(const char *prompt, chardev_t *input) |
243 | static char *clever_readline(const char *prompt, chardev_t *input) |
| 244 | { |
244 | { |
| 245 | static int histposition = 0; |
245 | static int histposition = 0; |
| 246 | 246 | ||
| 247 | static char tmp[MAX_CMDLINE + 1]; |
247 | static char tmp[MAX_CMDLINE + 1]; |
| 248 | int curlen = 0, position = 0; |
248 | int curlen = 0, position = 0; |
| 249 | char *current = history[histposition]; |
249 | char *current = history[histposition]; |
| 250 | int i; |
250 | int i; |
| 251 | char mod; /* Command Modifier */ |
251 | char mod; /* Command Modifier */ |
| 252 | char c; |
252 | char c; |
| 253 | 253 | ||
| 254 | printf("%s> ", prompt); |
254 | printf("%s> ", prompt); |
| 255 | while (1) { |
255 | while (1) { |
| 256 | c = _getc(input); |
256 | c = _getc(input); |
| 257 | if (c == '\n') { |
257 | if (c == '\n') { |
| 258 | putchar(c); |
258 | putchar(c); |
| 259 | break; |
259 | break; |
| 260 | } |
260 | } |
| 261 | if (c == '\b') { /* Backspace */ |
261 | if (c == '\b') { /* Backspace */ |
| 262 | if (position == 0) |
262 | if (position == 0) |
| 263 | continue; |
263 | continue; |
| 264 | for (i = position; i < curlen; i++) |
264 | for (i = position; i < curlen; i++) |
| 265 | current[i - 1] = current[i]; |
265 | current[i - 1] = current[i]; |
| 266 | curlen--; |
266 | curlen--; |
| 267 | position--; |
267 | position--; |
| 268 | putchar('\b'); |
268 | putchar('\b'); |
| 269 | for (i = position; i < curlen; i++) |
269 | for (i = position; i < curlen; i++) |
| 270 | putchar(current[i]); |
270 | putchar(current[i]); |
| 271 | putchar(' '); |
271 | putchar(' '); |
| 272 | rdln_print_c('\b', curlen - position + 1); |
272 | rdln_print_c('\b', curlen - position + 1); |
| 273 | continue; |
273 | continue; |
| 274 | } |
274 | } |
| 275 | if (c == '\t') { /* Tabulator */ |
275 | if (c == '\t') { /* Tabulator */ |
| 276 | int found; |
276 | int found; |
| 277 | 277 | ||
| 278 | /* Move to the end of the word */ |
278 | /* Move to the end of the word */ |
| 279 | for (; position < curlen && current[position] != ' '; |
279 | for (; position < curlen && current[position] != ' '; |
| 280 | position++) |
280 | position++) |
| 281 | putchar(current[position]); |
281 | putchar(current[position]); |
| 282 | /* Copy to tmp last word */ |
282 | /* Copy to tmp last word */ |
| 283 | for (i = position - 1; i >= 0 && current[i] != ' '; i--) |
283 | for (i = position - 1; i >= 0 && current[i] != ' '; i--) |
| 284 | ; |
284 | ; |
| 285 | /* If word begins with * or &, skip it */ |
285 | /* If word begins with * or &, skip it */ |
| 286 | if (tmp[0] == '*' || tmp[0] == '&') |
286 | if (tmp[0] == '*' || tmp[0] == '&') |
| 287 | for (i = 1; tmp[i]; i++) |
287 | for (i = 1; tmp[i]; i++) |
| 288 | tmp[i - 1] = tmp[i]; |
288 | tmp[i - 1] = tmp[i]; |
| 289 | i++; /* I is at the start of the word */ |
289 | i++; /* I is at the start of the word */ |
| 290 | strncpy(tmp, current + i, position - i + 1); |
290 | strncpy(tmp, current + i, position - i + 1); |
| 291 | 291 | ||
| 292 | if (i == 0) { /* Command completion */ |
292 | if (i == 0) { /* Command completion */ |
| 293 | found = cmdtab_compl(tmp); |
293 | found = cmdtab_compl(tmp); |
| 294 | } else { /* Symtab completion */ |
294 | } else { /* Symtab completion */ |
| 295 | found = symtab_compl(tmp); |
295 | found = symtab_compl(tmp); |
| 296 | } |
296 | } |
| 297 | 297 | ||
| 298 | if (found == 0) |
298 | if (found == 0) |
| 299 | continue; |
299 | continue; |
| 300 | for (i = 0; tmp[i] && curlen < MAX_CMDLINE; |
300 | for (i = 0; tmp[i] && curlen < MAX_CMDLINE; |
| 301 | i++, curlen++) |
301 | i++, curlen++) |
| 302 | insert_char(current, tmp[i], i + position); |
302 | insert_char(current, tmp[i], i + position); |
| 303 | 303 | ||
| 304 | if (strlen(tmp) || found == 1) { /* If we have a hint */ |
304 | if (strlen(tmp) || found == 1) { /* If we have a hint */ |
| 305 | for (i = position; i < curlen; i++) |
305 | for (i = position; i < curlen; i++) |
| 306 | putchar(current[i]); |
306 | putchar(current[i]); |
| 307 | position += strlen(tmp); |
307 | position += strlen(tmp); |
| 308 | /* Add space to end */ |
308 | /* Add space to end */ |
| 309 | if (found == 1 && position == curlen && |
309 | if (found == 1 && position == curlen && |
| 310 | curlen < MAX_CMDLINE) { |
310 | curlen < MAX_CMDLINE) { |
| 311 | current[position] = ' '; |
311 | current[position] = ' '; |
| 312 | curlen++; |
312 | curlen++; |
| 313 | position++; |
313 | position++; |
| 314 | putchar(' '); |
314 | putchar(' '); |
| 315 | } |
315 | } |
| 316 | } else { /* No hint, table was printed */ |
316 | } else { /* No hint, table was printed */ |
| 317 | printf("%s> ", prompt); |
317 | printf("%s> ", prompt); |
| 318 | for (i = 0; i < curlen; i++) |
318 | for (i = 0; i < curlen; i++) |
| 319 | putchar(current[i]); |
319 | putchar(current[i]); |
| 320 | position += strlen(tmp); |
320 | position += strlen(tmp); |
| 321 | } |
321 | } |
| 322 | rdln_print_c('\b', curlen - position); |
322 | rdln_print_c('\b', curlen - position); |
| 323 | continue; |
323 | continue; |
| 324 | } |
324 | } |
| 325 | if (c == 0x1b) { /* Special command */ |
325 | if (c == 0x1b) { /* Special command */ |
| 326 | mod = _getc(input); |
326 | mod = _getc(input); |
| 327 | c = _getc(input); |
327 | c = _getc(input); |
| 328 | 328 | ||
| 329 | if (mod != 0x5b && mod != 0x4f) |
329 | if (mod != 0x5b && mod != 0x4f) |
| 330 | continue; |
330 | continue; |
| 331 | 331 | ||
| 332 | if (c == 0x33 && _getc(input) == 0x7e) { |
332 | if (c == 0x33 && _getc(input) == 0x7e) { |
| 333 | /* Delete */ |
333 | /* Delete */ |
| 334 | if (position == curlen) |
334 | if (position == curlen) |
| 335 | continue; |
335 | continue; |
| 336 | for (i = position + 1; i < curlen; i++) { |
336 | for (i = position + 1; i < curlen; i++) { |
| 337 | putchar(current[i]); |
337 | putchar(current[i]); |
| 338 | current[i - 1] = current[i]; |
338 | current[i - 1] = current[i]; |
| 339 | } |
339 | } |
| 340 | putchar(' '); |
340 | putchar(' '); |
| 341 | rdln_print_c('\b', curlen - position); |
341 | rdln_print_c('\b', curlen - position); |
| 342 | curlen--; |
342 | curlen--; |
| 343 | } else if (c == 0x48) { /* Home */ |
343 | } else if (c == 0x48) { /* Home */ |
| 344 | rdln_print_c('\b', position); |
344 | rdln_print_c('\b', position); |
| 345 | position = 0; |
345 | position = 0; |
| 346 | } else if (c == 0x46) { /* End */ |
346 | } else if (c == 0x46) { /* End */ |
| 347 | for (i = position; i < curlen; i++) |
347 | for (i = position; i < curlen; i++) |
| 348 | putchar(current[i]); |
348 | putchar(current[i]); |
| 349 | position = curlen; |
349 | position = curlen; |
| 350 | } else if (c == 0x44) { /* Left */ |
350 | } else if (c == 0x44) { /* Left */ |
| 351 | if (position > 0) { |
351 | if (position > 0) { |
| 352 | putchar('\b'); |
352 | putchar('\b'); |
| 353 | position--; |
353 | position--; |
| 354 | } |
354 | } |
| 355 | continue; |
355 | continue; |
| 356 | } else if (c == 0x43) { /* Right */ |
356 | } else if (c == 0x43) { /* Right */ |
| 357 | if (position < curlen) { |
357 | if (position < curlen) { |
| 358 | putchar(current[position]); |
358 | putchar(current[position]); |
| 359 | position++; |
359 | position++; |
| 360 | } |
360 | } |
| 361 | continue; |
361 | continue; |
| 362 | } else if (c == 0x41 || c == 0x42) { |
362 | } else if (c == 0x41 || c == 0x42) { |
| 363 | /* Up, down */ |
363 | /* Up, down */ |
| 364 | rdln_print_c('\b', position); |
364 | rdln_print_c('\b', position); |
| 365 | rdln_print_c(' ', curlen); |
365 | rdln_print_c(' ', curlen); |
| 366 | rdln_print_c('\b', curlen); |
366 | rdln_print_c('\b', curlen); |
| 367 | if (c == 0x41) /* Up */ |
367 | if (c == 0x41) /* Up */ |
| 368 | histposition--; |
368 | histposition--; |
| 369 | else |
369 | else |
| 370 | histposition++; |
370 | histposition++; |
| 371 | if (histposition < 0) { |
371 | if (histposition < 0) { |
| 372 | histposition = KCONSOLE_HISTORY - 1; |
372 | histposition = KCONSOLE_HISTORY - 1; |
| 373 | } else { |
373 | } else { |
| 374 | histposition = |
374 | histposition = |
| 375 | histposition % KCONSOLE_HISTORY; |
375 | histposition % KCONSOLE_HISTORY; |
| 376 | } |
376 | } |
| 377 | current = history[histposition]; |
377 | current = history[histposition]; |
| 378 | printf("%s", current); |
378 | printf("%s", current); |
| 379 | curlen = strlen(current); |
379 | curlen = strlen(current); |
| 380 | position = curlen; |
380 | position = curlen; |
| 381 | continue; |
381 | continue; |
| 382 | } |
382 | } |
| 383 | continue; |
383 | continue; |
| 384 | } |
384 | } |
| 385 | if (curlen >= MAX_CMDLINE) |
385 | if (curlen >= MAX_CMDLINE) |
| 386 | continue; |
386 | continue; |
| 387 | 387 | ||
| 388 | insert_char(current, c, position); |
388 | insert_char(current, c, position); |
| 389 | 389 | ||
| 390 | curlen++; |
390 | curlen++; |
| 391 | for (i = position; i < curlen; i++) |
391 | for (i = position; i < curlen; i++) |
| 392 | putchar(current[i]); |
392 | putchar(current[i]); |
| 393 | position++; |
393 | position++; |
| 394 | rdln_print_c('\b',curlen - position); |
394 | rdln_print_c('\b',curlen - position); |
| 395 | } |
395 | } |
| 396 | if (curlen) { |
396 | if (curlen) { |
| 397 | histposition++; |
397 | histposition++; |
| 398 | histposition = histposition % KCONSOLE_HISTORY; |
398 | histposition = histposition % KCONSOLE_HISTORY; |
| 399 | } |
399 | } |
| 400 | current[curlen] = '\0'; |
400 | current[curlen] = '\0'; |
| 401 | return current; |
401 | return current; |
| 402 | } |
402 | } |
| 403 | 403 | ||
| 404 | /** Kernel console managing thread. |
404 | /** Kernel console prompt. |
| 405 | * |
405 | * |
| 406 | * @param prompt Kernel console prompt (e.g kconsole/panic). |
406 | * @param prompt Kernel console prompt (e.g kconsole/panic). |
| - | 407 | * @param msg Message to display in the beginning. |
|
| - | 408 | * @param kcon Wait for keypress to show the prompt |
|
| - | 409 | * and never exit. |
|
| - | 410 | * |
|
| 407 | */ |
411 | */ |
| 408 | void kconsole(void *prompt) |
412 | void kconsole(char *prompt, char *msg, bool kcon) |
| 409 | { |
413 | { |
| 410 | cmd_info_t *cmd_info; |
414 | cmd_info_t *cmd_info; |
| 411 | count_t len; |
415 | count_t len; |
| 412 | char *cmdline; |
416 | char *cmdline; |
| 413 | 417 | ||
| 414 | if (!stdin) { |
418 | if (!stdin) { |
| 415 | printf("%s: no stdin\n", __func__); |
419 | LOG("No stdin for kernel console"); |
| 416 | return; |
420 | return; |
| 417 | } |
421 | } |
| 418 | 422 | ||
| - | 423 | if (msg) |
|
| - | 424 | printf("%s", msg); |
|
| - | 425 | ||
| - | 426 | if (kcon) |
|
| - | 427 | _getc(stdin); |
|
| - | 428 | ||
| 419 | while (true) { |
429 | while (true) { |
| 420 | cmdline = clever_readline((char *) prompt, stdin); |
430 | cmdline = clever_readline((char *) prompt, stdin); |
| 421 | len = strlen(cmdline); |
431 | len = strlen(cmdline); |
| 422 | if (!len) |
432 | if (!len) |
| 423 | continue; |
433 | continue; |
| - | 434 | ||
| 424 | cmd_info = parse_cmdline(cmdline, len); |
435 | cmd_info = parse_cmdline(cmdline, len); |
| 425 | if (!cmd_info) |
436 | if (!cmd_info) |
| 426 | continue; |
437 | continue; |
| - | 438 | ||
| 427 | if (strncmp(cmd_info->name, "exit", |
439 | if ((!kcon) |
| 428 | min(strlen(cmd_info->name), 5)) == 0) |
440 | && (strncmp(cmd_info->name, "exit", min(strlen(cmd_info->name), 5)) == 0)) |
| 429 | break; |
441 | break; |
| - | 442 | ||
| 430 | (void) cmd_info->func(cmd_info->argv); |
443 | (void) cmd_info->func(cmd_info->argv); |
| 431 | } |
444 | } |
| 432 | } |
445 | } |
| - | 446 | ||
| - | 447 | /** Kernel console managing thread. |
|
| - | 448 | * |
|
| - | 449 | */ |
|
| - | 450 | void kconsole_thread(void *data) |
|
| - | 451 | { |
|
| - | 452 | kconsole("kconsole", "Kernel console ready (press any key to activate)\n", true); |
|
| - | 453 | } |
|
| 433 | 454 | ||
| 434 | static int parse_int_arg(char *text, size_t len, unative_t *result) |
455 | static int parse_int_arg(char *text, size_t len, unative_t *result) |
| 435 | { |
456 | { |
| 436 | static char symname[MAX_SYMBOL_NAME]; |
457 | static char symname[MAX_SYMBOL_NAME]; |
| 437 | uintptr_t symaddr; |
458 | uintptr_t symaddr; |
| 438 | bool isaddr = false; |
459 | bool isaddr = false; |
| 439 | bool isptr = false; |
460 | bool isptr = false; |
| 440 | 461 | ||
| 441 | /* If we get a name, try to find it in symbol table */ |
462 | /* If we get a name, try to find it in symbol table */ |
| 442 | if (text[0] == '&') { |
463 | if (text[0] == '&') { |
| 443 | isaddr = true; |
464 | isaddr = true; |
| 444 | text++; |
465 | text++; |
| 445 | len--; |
466 | len--; |
| 446 | } else if (text[0] == '*') { |
467 | } else if (text[0] == '*') { |
| 447 | isptr = true; |
468 | isptr = true; |
| 448 | text++; |
469 | text++; |
| 449 | len--; |
470 | len--; |
| 450 | } |
471 | } |
| 451 | if (text[0] < '0' || text[0] > '9') { |
472 | if (text[0] < '0' || text[0] > '9') { |
| 452 | strncpy(symname, text, min(len + 1, MAX_SYMBOL_NAME)); |
473 | strncpy(symname, text, min(len + 1, MAX_SYMBOL_NAME)); |
| 453 | symaddr = get_symbol_addr(symname); |
474 | symaddr = get_symbol_addr(symname); |
| 454 | if (!symaddr) { |
475 | if (!symaddr) { |
| 455 | printf("Symbol %s not found.\n", symname); |
476 | printf("Symbol %s not found.\n", symname); |
| 456 | return -1; |
477 | return -1; |
| 457 | } |
478 | } |
| 458 | if (symaddr == (uintptr_t) -1) { |
479 | if (symaddr == (uintptr_t) -1) { |
| 459 | printf("Duplicate symbol %s.\n", symname); |
480 | printf("Duplicate symbol %s.\n", symname); |
| 460 | symtab_print_search(symname); |
481 | symtab_print_search(symname); |
| 461 | return -1; |
482 | return -1; |
| 462 | } |
483 | } |
| 463 | if (isaddr) |
484 | if (isaddr) |
| 464 | *result = (unative_t)symaddr; |
485 | *result = (unative_t)symaddr; |
| 465 | else if (isptr) |
486 | else if (isptr) |
| 466 | *result = **((unative_t **)symaddr); |
487 | *result = **((unative_t **)symaddr); |
| 467 | else |
488 | else |
| 468 | *result = *((unative_t *)symaddr); |
489 | *result = *((unative_t *)symaddr); |
| 469 | } else { /* It's a number - convert it */ |
490 | } else { /* It's a number - convert it */ |
| 470 | *result = atoi(text); |
491 | *result = atoi(text); |
| 471 | if (isptr) |
492 | if (isptr) |
| 472 | *result = *((unative_t *)*result); |
493 | *result = *((unative_t *)*result); |
| 473 | } |
494 | } |
| 474 | 495 | ||
| 475 | return 0; |
496 | return 0; |
| 476 | } |
497 | } |
| 477 | 498 | ||
| 478 | /** Parse command line. |
499 | /** Parse command line. |
| 479 | * |
500 | * |
| 480 | * @param cmdline Command line as read from input device. |
501 | * @param cmdline Command line as read from input device. |
| 481 | * @param len Command line length. |
502 | * @param len Command line length. |
| 482 | * |
503 | * |
| 483 | * @return Structure describing the command. |
504 | * @return Structure describing the command. |
| 484 | */ |
505 | */ |
| 485 | cmd_info_t *parse_cmdline(char *cmdline, size_t len) |
506 | cmd_info_t *parse_cmdline(char *cmdline, size_t len) |
| 486 | { |
507 | { |
| 487 | index_t start = 0, end = 0; |
508 | index_t start = 0, end = 0; |
| 488 | cmd_info_t *cmd = NULL; |
509 | cmd_info_t *cmd = NULL; |
| 489 | link_t *cur; |
510 | link_t *cur; |
| 490 | count_t i; |
511 | count_t i; |
| 491 | int error = 0; |
512 | int error = 0; |
| 492 | 513 | ||
| 493 | if (!parse_argument(cmdline, len, &start, &end)) { |
514 | if (!parse_argument(cmdline, len, &start, &end)) { |
| 494 | /* Command line did not contain alphanumeric word. */ |
515 | /* Command line did not contain alphanumeric word. */ |
| 495 | return NULL; |
516 | return NULL; |
| 496 | } |
517 | } |
| 497 | 518 | ||
| 498 | spinlock_lock(&cmd_lock); |
519 | spinlock_lock(&cmd_lock); |
| 499 | 520 | ||
| 500 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
521 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
| 501 | cmd_info_t *hlp; |
522 | cmd_info_t *hlp; |
| 502 | 523 | ||
| 503 | hlp = list_get_instance(cur, cmd_info_t, link); |
524 | hlp = list_get_instance(cur, cmd_info_t, link); |
| 504 | spinlock_lock(&hlp->lock); |
525 | spinlock_lock(&hlp->lock); |
| 505 | 526 | ||
| 506 | if (strncmp(hlp->name, &cmdline[start], max(strlen(hlp->name), |
527 | if (strncmp(hlp->name, &cmdline[start], max(strlen(hlp->name), |
| 507 | end - start + 1)) == 0) { |
528 | end - start + 1)) == 0) { |
| 508 | cmd = hlp; |
529 | cmd = hlp; |
| 509 | break; |
530 | break; |
| 510 | } |
531 | } |
| 511 | 532 | ||
| 512 | spinlock_unlock(&hlp->lock); |
533 | spinlock_unlock(&hlp->lock); |
| 513 | } |
534 | } |
| 514 | 535 | ||
| 515 | spinlock_unlock(&cmd_lock); |
536 | spinlock_unlock(&cmd_lock); |
| 516 | 537 | ||
| 517 | if (!cmd) { |
538 | if (!cmd) { |
| 518 | /* Unknown command. */ |
539 | /* Unknown command. */ |
| 519 | printf("Unknown command.\n"); |
540 | printf("Unknown command.\n"); |
| 520 | return NULL; |
541 | return NULL; |
| 521 | } |
542 | } |
| 522 | 543 | ||
| 523 | /* cmd == hlp is locked */ |
544 | /* cmd == hlp is locked */ |
| 524 | 545 | ||
| 525 | /* |
546 | /* |
| 526 | * The command line must be further analyzed and |
547 | * The command line must be further analyzed and |
| 527 | * the parameters therefrom must be matched and |
548 | * the parameters therefrom must be matched and |
| 528 | * converted to those specified in the cmd info |
549 | * converted to those specified in the cmd info |
| 529 | * structure. |
550 | * structure. |
| 530 | */ |
551 | */ |
| 531 | 552 | ||
| 532 | for (i = 0; i < cmd->argc; i++) { |
553 | for (i = 0; i < cmd->argc; i++) { |
| 533 | char *buf; |
554 | char *buf; |
| 534 | start = end + 1; |
555 | start = end + 1; |
| 535 | if (!parse_argument(cmdline, len, &start, &end)) { |
556 | if (!parse_argument(cmdline, len, &start, &end)) { |
| 536 | printf("Too few arguments.\n"); |
557 | printf("Too few arguments.\n"); |
| 537 | spinlock_unlock(&cmd->lock); |
558 | spinlock_unlock(&cmd->lock); |
| 538 | return NULL; |
559 | return NULL; |
| 539 | } |
560 | } |
| 540 | 561 | ||
| 541 | error = 0; |
562 | error = 0; |
| 542 | switch (cmd->argv[i].type) { |
563 | switch (cmd->argv[i].type) { |
| 543 | case ARG_TYPE_STRING: |
564 | case ARG_TYPE_STRING: |
| 544 | buf = (char *) cmd->argv[i].buffer; |
565 | buf = (char *) cmd->argv[i].buffer; |
| 545 | strncpy(buf, (const char *) &cmdline[start], |
566 | strncpy(buf, (const char *) &cmdline[start], |
| 546 | min((end - start) + 2, cmd->argv[i].len)); |
567 | min((end - start) + 2, cmd->argv[i].len)); |
| 547 | buf[min((end - start) + 1, cmd->argv[i].len - 1)] = |
568 | buf[min((end - start) + 1, cmd->argv[i].len - 1)] = |
| 548 | '\0'; |
569 | '\0'; |
| 549 | break; |
570 | break; |
| 550 | case ARG_TYPE_INT: |
571 | case ARG_TYPE_INT: |
| 551 | if (parse_int_arg(cmdline + start, end - start + 1, |
572 | if (parse_int_arg(cmdline + start, end - start + 1, |
| 552 | &cmd->argv[i].intval)) |
573 | &cmd->argv[i].intval)) |
| 553 | error = 1; |
574 | error = 1; |
| 554 | break; |
575 | break; |
| 555 | case ARG_TYPE_VAR: |
576 | case ARG_TYPE_VAR: |
| 556 | if (start != end && cmdline[start] == '"' && |
577 | if (start != end && cmdline[start] == '"' && |
| 557 | cmdline[end] == '"') { |
578 | cmdline[end] == '"') { |
| 558 | buf = (char *) cmd->argv[i].buffer; |
579 | buf = (char *) cmd->argv[i].buffer; |
| 559 | strncpy(buf, (const char *) &cmdline[start + 1], |
580 | strncpy(buf, (const char *) &cmdline[start + 1], |
| 560 | min((end-start), cmd->argv[i].len)); |
581 | min((end-start), cmd->argv[i].len)); |
| 561 | buf[min((end - start), cmd->argv[i].len - 1)] = |
582 | buf[min((end - start), cmd->argv[i].len - 1)] = |
| 562 | '\0'; |
583 | '\0'; |
| 563 | cmd->argv[i].intval = (unative_t) buf; |
584 | cmd->argv[i].intval = (unative_t) buf; |
| 564 | cmd->argv[i].vartype = ARG_TYPE_STRING; |
585 | cmd->argv[i].vartype = ARG_TYPE_STRING; |
| 565 | } else if (!parse_int_arg(cmdline + start, |
586 | } else if (!parse_int_arg(cmdline + start, |
| 566 | end - start + 1, &cmd->argv[i].intval)) { |
587 | end - start + 1, &cmd->argv[i].intval)) { |
| 567 | cmd->argv[i].vartype = ARG_TYPE_INT; |
588 | cmd->argv[i].vartype = ARG_TYPE_INT; |
| 568 | } else { |
589 | } else { |
| 569 | printf("Unrecognized variable argument.\n"); |
590 | printf("Unrecognized variable argument.\n"); |
| 570 | error = 1; |
591 | error = 1; |
| 571 | } |
592 | } |
| 572 | break; |
593 | break; |
| 573 | case ARG_TYPE_INVALID: |
594 | case ARG_TYPE_INVALID: |
| 574 | default: |
595 | default: |
| 575 | printf("invalid argument type\n"); |
596 | printf("invalid argument type\n"); |
| 576 | error = 1; |
597 | error = 1; |
| 577 | break; |
598 | break; |
| 578 | } |
599 | } |
| 579 | } |
600 | } |
| 580 | 601 | ||
| 581 | if (error) { |
602 | if (error) { |
| 582 | spinlock_unlock(&cmd->lock); |
603 | spinlock_unlock(&cmd->lock); |
| 583 | return NULL; |
604 | return NULL; |
| 584 | } |
605 | } |
| 585 | 606 | ||
| 586 | start = end + 1; |
607 | start = end + 1; |
| 587 | if (parse_argument(cmdline, len, &start, &end)) { |
608 | if (parse_argument(cmdline, len, &start, &end)) { |
| 588 | printf("Too many arguments.\n"); |
609 | printf("Too many arguments.\n"); |
| 589 | spinlock_unlock(&cmd->lock); |
610 | spinlock_unlock(&cmd->lock); |
| 590 | return NULL; |
611 | return NULL; |
| 591 | } |
612 | } |
| 592 | 613 | ||
| 593 | spinlock_unlock(&cmd->lock); |
614 | spinlock_unlock(&cmd->lock); |
| 594 | return cmd; |
615 | return cmd; |
| 595 | } |
616 | } |
| 596 | 617 | ||
| 597 | /** Parse argument. |
618 | /** Parse argument. |
| 598 | * |
619 | * |
| 599 | * Find start and end positions of command line argument. |
620 | * Find start and end positions of command line argument. |
| 600 | * |
621 | * |
| 601 | * @param cmdline Command line as read from the input device. |
622 | * @param cmdline Command line as read from the input device. |
| 602 | * @param len Number of characters in cmdline. |
623 | * @param len Number of characters in cmdline. |
| 603 | * @param start On entry, 'start' contains pointer to the index |
624 | * @param start On entry, 'start' contains pointer to the index |
| 604 | * of first unprocessed character of cmdline. |
625 | * of first unprocessed character of cmdline. |
| 605 | * On successful exit, it marks beginning of the next argument. |
626 | * On successful exit, it marks beginning of the next argument. |
| 606 | * @param end Undefined on entry. On exit, 'end' points to the last character |
627 | * @param end Undefined on entry. On exit, 'end' points to the last character |
| 607 | * of the next argument. |
628 | * of the next argument. |
| 608 | * |
629 | * |
| 609 | * @return false on failure, true on success. |
630 | * @return false on failure, true on success. |
| 610 | */ |
631 | */ |
| 611 | bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end) |
632 | bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end) |
| 612 | { |
633 | { |
| 613 | index_t i; |
634 | index_t i; |
| 614 | bool found_start = false; |
635 | bool found_start = false; |
| 615 | 636 | ||
| 616 | ASSERT(start != NULL); |
637 | ASSERT(start != NULL); |
| 617 | ASSERT(end != NULL); |
638 | ASSERT(end != NULL); |
| 618 | 639 | ||
| 619 | for (i = *start; i < len; i++) { |
640 | for (i = *start; i < len; i++) { |
| 620 | if (!found_start) { |
641 | if (!found_start) { |
| 621 | if (isspace(cmdline[i])) |
642 | if (isspace(cmdline[i])) |
| 622 | (*start)++; |
643 | (*start)++; |
| 623 | else |
644 | else |
| 624 | found_start = true; |
645 | found_start = true; |
| 625 | } else { |
646 | } else { |
| 626 | if (isspace(cmdline[i])) |
647 | if (isspace(cmdline[i])) |
| 627 | break; |
648 | break; |
| 628 | } |
649 | } |
| 629 | } |
650 | } |
| 630 | *end = i - 1; |
651 | *end = i - 1; |
| 631 | 652 | ||
| 632 | return found_start; |
653 | return found_start; |
| 633 | } |
654 | } |
| 634 | 655 | ||
| 635 | /** @} |
656 | /** @} |
| 636 | */ |
657 | */ |
| 637 | 658 | ||