4.104.114.84.95
Last change
on this file since 08b5f55 was
3cf8394,
checked in by Joel Sherrill <joel.sherrill@…>, on 02/24/99 at 20:58:47
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Changed IMFS to use IMFS_NAME_MAX as the maximum length of a basename
rather then NAME_MAX. NAME_MAX is 255 and that lets IMFS chew up memory
too fast. Perhaps in the future, the places in IMFS that put a maximum
length name string on the stack and the jnode structure does not include
a maximu length name string can be fixed so this is not a problem.
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-
Property mode set to
100644
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File size:
1.6 KB
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1 | /* |
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2 | * IMFS_get_token |
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3 | * |
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4 | * Routine to get a token (name or separator) from the path |
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5 | * the length of the token is returned in token_len. |
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6 | * |
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7 | * COPYRIGHT (c) 1989-1998. |
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8 | * On-Line Applications Research Corporation (OAR). |
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9 | * Copyright assigned to U.S. Government, 1994. |
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10 | * |
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11 | * The license and distribution terms for this file may be |
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12 | * found in the file LICENSE in this distribution or at |
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13 | * http://www.OARcorp.com/rtems/license.html. |
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14 | * |
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15 | * $Id$ |
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16 | */ |
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17 | |
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18 | #include <stdlib.h> |
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19 | #include "imfs.h" |
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20 | #include "libio_.h" |
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21 | |
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22 | IMFS_token_types IMFS_get_token( |
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23 | const char *path, |
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24 | char *token, |
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25 | int *token_len |
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26 | ) |
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27 | { |
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28 | int i = 0; |
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29 | IMFS_token_types type = IMFS_NAME; |
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30 | |
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31 | /* |
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32 | * Copy a name into token. (Remember NULL is a token.) |
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33 | */ |
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34 | |
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35 | while ( !IMFS_is_separator( path[i] ) && (i <= IMFS_NAME_MAX) ) { |
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36 | |
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37 | token[i] = path[i]; |
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38 | |
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39 | if (i == IMFS_NAME_MAX) |
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40 | return IMFS_INVALID_TOKEN; |
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41 | |
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42 | if ( !IMFS_is_valid_name_char( token[i] ) ) |
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43 | type = IMFS_INVALID_TOKEN; |
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44 | |
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45 | i++; |
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46 | } |
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47 | |
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48 | /* |
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49 | * Copy a seperator into token. |
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50 | */ |
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51 | |
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52 | if ( i == 0 ) { |
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53 | token[i] = path[i]; |
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54 | |
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55 | if ( token[i] != '\0' ) { |
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56 | i++; |
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57 | type = IMFS_CURRENT_DIR; |
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58 | } else { |
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59 | type = IMFS_NO_MORE_PATH; |
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60 | } |
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61 | } else if (token[ i-1 ] != '\0') { |
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62 | token[i] = '\0'; |
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63 | } |
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64 | |
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65 | /* |
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66 | * Set token_len to the number of characters copied. |
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67 | */ |
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68 | |
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69 | *token_len = i; |
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70 | |
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71 | /* |
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72 | * If we copied something that was not a seperator see if |
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73 | * it was a special name. |
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74 | */ |
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75 | |
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76 | if ( type == IMFS_NAME ) { |
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77 | if ( strcmp( token, "..") == 0 ) |
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78 | type = IMFS_UP_DIR; |
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79 | else if ( strcmp( token, "." ) == 0 ) |
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80 | type = IMFS_CURRENT_DIR; |
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81 | } |
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82 | |
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83 | return type; |
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84 | } |
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