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1 /* |
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2 zip_name_locate.c -- get index by name |
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3 Copyright (C) 1999-2015 Dieter Baron and Thomas Klausner |
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4 |
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5 This file is part of libzip, a library to manipulate ZIP archives. |
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6 The authors can be contacted at <libzip@nih.at> |
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7 |
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8 Redistribution and use in source and binary forms, with or without |
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9 modification, are permitted provided that the following conditions |
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10 are met: |
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11 1. Redistributions of source code must retain the above copyright |
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12 notice, this list of conditions and the following disclaimer. |
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13 2. Redistributions in binary form must reproduce the above copyright |
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14 notice, this list of conditions and the following disclaimer in |
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15 the documentation and/or other materials provided with the |
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16 distribution. |
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17 3. The names of the authors may not be used to endorse or promote |
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18 products derived from this software without specific prior |
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19 written permission. |
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20 |
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21 THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS |
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22 OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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23 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
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25 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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26 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
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27 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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28 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
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29 IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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30 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
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31 IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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32 */ |
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33 |
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34 |
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35 #include <string.h> |
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36 #ifdef HAVE_STRINGS_H |
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37 #include <strings.h> |
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38 #endif |
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39 |
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40 #include "zipint.h" |
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41 |
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42 |
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43 ZIP_EXTERN zip_int64_t |
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44 zip_name_locate(zip_t *za, const char *fname, zip_flags_t flags) |
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45 { |
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46 return _zip_name_locate(za, fname, flags, &za->error); |
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47 } |
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48 |
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49 |
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50 zip_int64_t |
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51 _zip_name_locate(zip_t *za, const char *fname, zip_flags_t flags, zip_error_t *error) |
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52 { |
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53 int (*cmp)(const char *, const char *); |
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54 const char *fn, *p; |
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55 zip_uint64_t i; |
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56 |
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57 if (za == NULL) |
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58 return -1; |
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59 |
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60 if (fname == NULL) { |
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61 zip_error_set(error, ZIP_ER_INVAL, 0); |
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62 return -1; |
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63 } |
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64 |
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65 if (flags & (ZIP_FL_NOCASE|ZIP_FL_NODIR|ZIP_FL_ENC_CP437)) { |
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66 /* can't use hash table */ |
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67 cmp = (flags & ZIP_FL_NOCASE) ? strcasecmp : strcmp; |
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68 |
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69 for (i=0; i<za->nentry; i++) { |
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70 fn = _zip_get_name(za, i, flags, error); |
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71 |
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72 /* newly added (partially filled) entry or error */ |
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73 if (fn == NULL) |
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74 continue; |
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75 |
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76 if (flags & ZIP_FL_NODIR) { |
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77 p = strrchr(fn, '/'); |
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78 if (p) |
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79 fn = p+1; |
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80 } |
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81 |
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82 if (cmp(fname, fn) == 0) { |
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83 _zip_error_clear(error); |
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84 return (zip_int64_t)i; |
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85 } |
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86 } |
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87 |
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88 zip_error_set(error, ZIP_ER_NOENT, 0); |
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89 return -1; |
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90 } |
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91 else { |
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92 return _zip_hash_lookup(za->names, (const zip_uint8_t *)fname, flags, error); |
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93 } |
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94 } |
