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Rev | Author | Line No. | Line |
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2 | pj | 1 | |
1063 | tullio | 2 | /* |
3 | * This program is free software; you can redistribute it and/or modify |
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4 | * it under the terms of the GNU General Public License as published by |
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5 | * the Free Software Foundation; either version 2 of the License, or |
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6 | * (at your option) any later version. |
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7 | * |
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8 | * This program is distributed in the hope that it will be useful, |
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9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 | * GNU General Public License for more details. |
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12 | * |
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13 | * You should have received a copy of the GNU General Public License |
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14 | * along with this program; if not, write to the Free Software |
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15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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16 | * |
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17 | */ |
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18 | |||
2 | pj | 19 | #include <fs/types.h> |
20 | #include <fs/errno.h> |
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21 | #include <fs/task.h> |
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22 | #include <fs/util.h> |
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23 | #include <fs/maccess.h> |
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24 | |||
25 | #include "file.h" |
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26 | #include "fs.h" |
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27 | |||
28 | int k_getcwd(char *buf, size_t sz) |
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29 | { |
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30 | char *cwd; |
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31 | int len; |
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32 | __pid_t pid; |
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33 | |||
34 | call_to_fs(); |
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35 | |||
36 | pid=__get_pid(); |
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37 | lock_desctable(pid); |
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38 | cwd=cwd_ptr(pid); |
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39 | if (buf==NULL||strlen(cwd)>=sz) { |
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40 | unlock_desctable(pid); |
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41 | return_from_fs(-ERANGE); |
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42 | } |
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43 | len=strlen(cwd)+1; |
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44 | if (!__verify_write(buf,len)) { |
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45 | unlock_desctable(pid); |
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46 | return_from_fs(-EVERIFY); |
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47 | } |
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48 | __copy_to_user(buf,cwd,len); |
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49 | unlock_desctable(pid); |
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50 | return_from_fs(EOK); |
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51 | } |