diff options
Diffstat (limited to 'src/Common/libzip/zip_extra_field_api.c')
-rw-r--r-- | src/Common/libzip/zip_extra_field_api.c | 305 |
1 files changed, 153 insertions, 152 deletions
diff --git a/src/Common/libzip/zip_extra_field_api.c b/src/Common/libzip/zip_extra_field_api.c index ed93944a..560c71bb 100644 --- a/src/Common/libzip/zip_extra_field_api.c +++ b/src/Common/libzip/zip_extra_field_api.c @@ -1,9 +1,9 @@ /* zip_extra_field_api.c -- public extra fields API functions - Copyright (C) 2012-2014 Dieter Baron and Thomas Klausner + Copyright (C) 2012-2021 Dieter Baron and Thomas Klausner This file is part of libzip, a library to manipulate ZIP archives. - The authors can be contacted at <libzip@nih.at> + The authors can be contacted at <info@libzip.org> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions @@ -17,7 +17,7 @@ 3. The names of the authors may not be used to endorse or promote products derived from this software without specific prior written permission. - + THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -36,64 +36,70 @@ ZIP_EXTERN int -zip_file_extra_field_delete(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_idx, zip_flags_t flags) -{ +zip_file_extra_field_delete(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_idx, zip_flags_t flags) { zip_dirent_t *de; if ((flags & ZIP_EF_BOTH) == 0) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } if (((flags & ZIP_EF_BOTH) == ZIP_EF_BOTH) && (ef_idx != ZIP_EXTRA_FIELD_ALL)) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } - + if (_zip_get_dirent(za, idx, 0, NULL) == NULL) - return -1; - + return -1; + if (ZIP_IS_RDONLY(za)) { - zip_error_set(&za->error, ZIP_ER_RDONLY, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_RDONLY, 0); + return -1; + } + if (ZIP_WANT_TORRENTZIP(za)) { + zip_error_set(&za->error, ZIP_ER_NOT_ALLOWED, 0); + return -1; } if (_zip_file_extra_field_prepare_for_change(za, idx) < 0) return -1; - + de = za->entry[idx].changes; - + de->extra_fields = _zip_ef_delete_by_id(de->extra_fields, ZIP_EXTRA_FIELD_ALL, ef_idx, flags); return 0; } ZIP_EXTERN int -zip_file_extra_field_delete_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, zip_flags_t flags) -{ +zip_file_extra_field_delete_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, zip_flags_t flags) { zip_dirent_t *de; if ((flags & ZIP_EF_BOTH) == 0) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } if (((flags & ZIP_EF_BOTH) == ZIP_EF_BOTH) && (ef_idx != ZIP_EXTRA_FIELD_ALL)) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } - + if (_zip_get_dirent(za, idx, 0, NULL) == NULL) - return -1; + return -1; if (ZIP_IS_RDONLY(za)) { - zip_error_set(&za->error, ZIP_ER_RDONLY, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_RDONLY, 0); + return -1; + } + if (ZIP_WANT_TORRENTZIP(za)) { + zip_error_set(&za->error, ZIP_ER_NOT_ALLOWED, 0); + return -1; } - + if (_zip_file_extra_field_prepare_for_change(za, idx) < 0) return -1; - + de = za->entry[idx].changes; de->extra_fields = _zip_ef_delete_by_id(de->extra_fields, ef_id, ef_idx, flags); @@ -102,157 +108,155 @@ zip_file_extra_field_delete_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_i ZIP_EXTERN const zip_uint8_t * -zip_file_extra_field_get(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_idx, zip_uint16_t *idp, zip_uint16_t *lenp, zip_flags_t flags) -{ - static const zip_uint8_t empty[1] = { '\0' }; +zip_file_extra_field_get(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_idx, zip_uint16_t *idp, zip_uint16_t *lenp, zip_flags_t flags) { + static const zip_uint8_t empty[1] = {'\0'}; zip_dirent_t *de; zip_extra_field_t *ef; int i; if ((flags & ZIP_EF_BOTH) == 0) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return NULL; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return NULL; } - if ((de=_zip_get_dirent(za, idx, flags, &za->error)) == NULL) - return NULL; + if ((de = _zip_get_dirent(za, idx, flags, &za->error)) == NULL) + return NULL; if (flags & ZIP_FL_LOCAL) - if (_zip_read_local_ef(za, idx) < 0) - return NULL; + if (_zip_read_local_ef(za, idx) < 0) + return NULL; i = 0; - for (ef=de->extra_fields; ef; ef=ef->next) { - if (ef->flags & flags & ZIP_EF_BOTH) { - if (i < ef_idx) { - i++; - continue; - } - - if (idp) - *idp = ef->id; - if (lenp) - *lenp = ef->size; - if (ef->size > 0) - return ef->data; - else - return empty; - } + for (ef = de->extra_fields; ef; ef = ef->next) { + if (ef->flags & flags & ZIP_EF_BOTH) { + if (i < ef_idx) { + i++; + continue; + } + + if (idp) + *idp = ef->id; + if (lenp) + *lenp = ef->size; + if (ef->size > 0) + return ef->data; + else + return empty; + } } zip_error_set(&za->error, ZIP_ER_NOENT, 0); return NULL; - } ZIP_EXTERN const zip_uint8_t * -zip_file_extra_field_get_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, zip_uint16_t *lenp, zip_flags_t flags) -{ +zip_file_extra_field_get_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, zip_uint16_t *lenp, zip_flags_t flags) { zip_dirent_t *de; if ((flags & ZIP_EF_BOTH) == 0) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return NULL; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return NULL; } - if ((de=_zip_get_dirent(za, idx, flags, &za->error)) == NULL) - return NULL; + if ((de = _zip_get_dirent(za, idx, flags, &za->error)) == NULL) + return NULL; if (flags & ZIP_FL_LOCAL) - if (_zip_read_local_ef(za, idx) < 0) - return NULL; + if (_zip_read_local_ef(za, idx) < 0) + return NULL; return _zip_ef_get_by_id(de->extra_fields, lenp, ef_id, ef_idx, flags, &za->error); } ZIP_EXTERN zip_int16_t -zip_file_extra_fields_count(zip_t *za, zip_uint64_t idx, zip_flags_t flags) -{ +zip_file_extra_fields_count(zip_t *za, zip_uint64_t idx, zip_flags_t flags) { zip_dirent_t *de; zip_extra_field_t *ef; zip_uint16_t n; if ((flags & ZIP_EF_BOTH) == 0) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } - if ((de=_zip_get_dirent(za, idx, flags, &za->error)) == NULL) - return -1; + if ((de = _zip_get_dirent(za, idx, flags, &za->error)) == NULL) + return -1; if (flags & ZIP_FL_LOCAL) - if (_zip_read_local_ef(za, idx) < 0) - return -1; + if (_zip_read_local_ef(za, idx) < 0) + return -1; n = 0; - for (ef=de->extra_fields; ef; ef=ef->next) - if (ef->flags & flags & ZIP_EF_BOTH) - n++; + for (ef = de->extra_fields; ef; ef = ef->next) + if (ef->flags & flags & ZIP_EF_BOTH) + n++; return (zip_int16_t)n; } ZIP_EXTERN zip_int16_t -zip_file_extra_fields_count_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_flags_t flags) -{ +zip_file_extra_fields_count_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_flags_t flags) { zip_dirent_t *de; zip_extra_field_t *ef; zip_uint16_t n; if ((flags & ZIP_EF_BOTH) == 0) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } - if ((de=_zip_get_dirent(za, idx, flags, &za->error)) == NULL) - return -1; + if ((de = _zip_get_dirent(za, idx, flags, &za->error)) == NULL) + return -1; if (flags & ZIP_FL_LOCAL) - if (_zip_read_local_ef(za, idx) < 0) - return -1; + if (_zip_read_local_ef(za, idx) < 0) + return -1; n = 0; - for (ef=de->extra_fields; ef; ef=ef->next) - if (ef->id == ef_id && (ef->flags & flags & ZIP_EF_BOTH)) - n++; + for (ef = de->extra_fields; ef; ef = ef->next) + if (ef->id == ef_id && (ef->flags & flags & ZIP_EF_BOTH)) + n++; return (zip_int16_t)n; } ZIP_EXTERN int -zip_file_extra_field_set(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, const zip_uint8_t *data, zip_uint16_t len, zip_flags_t flags) -{ +zip_file_extra_field_set(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_uint16_t ef_idx, const zip_uint8_t *data, zip_uint16_t len, zip_flags_t flags) { zip_dirent_t *de; zip_uint16_t ls, cs; zip_extra_field_t *ef, *ef_prev, *ef_new; int i, found, new_len; if ((flags & ZIP_EF_BOTH) == 0) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } if (_zip_get_dirent(za, idx, 0, NULL) == NULL) - return -1; - + return -1; + if (ZIP_IS_RDONLY(za)) { - zip_error_set(&za->error, ZIP_ER_RDONLY, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_RDONLY, 0); + return -1; + } + if (ZIP_WANT_TORRENTZIP(za)) { + zip_error_set(&za->error, ZIP_ER_NOT_ALLOWED, 0); + return -1; } - + if (ZIP_EF_IS_INTERNAL(ef_id)) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } if (_zip_file_extra_field_prepare_for_change(za, idx) < 0) return -1; - + de = za->entry[idx].changes; ef = de->extra_fields; @@ -260,107 +264,104 @@ zip_file_extra_field_set(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_ui i = 0; found = 0; - for (; ef; ef=ef->next) { - if (ef->id == ef_id && (ef->flags & flags & ZIP_EF_BOTH)) { - if (i == ef_idx) { - found = 1; - break; - } - i++; - } - ef_prev = ef; + for (; ef; ef = ef->next) { + if (ef->id == ef_id && (ef->flags & flags & ZIP_EF_BOTH)) { + if (i == ef_idx) { + found = 1; + break; + } + i++; + } + ef_prev = ef; } if (i < ef_idx && ef_idx != ZIP_EXTRA_FIELD_NEW) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } if (flags & ZIP_EF_LOCAL) - ls = _zip_ef_size(de->extra_fields, ZIP_EF_LOCAL); + ls = _zip_ef_size(de->extra_fields, ZIP_EF_LOCAL); else - ls = 0; + ls = 0; if (flags & ZIP_EF_CENTRAL) - cs = _zip_ef_size(de->extra_fields, ZIP_EF_CENTRAL); + cs = _zip_ef_size(de->extra_fields, ZIP_EF_CENTRAL); else - cs = 0; + cs = 0; new_len = ls > cs ? ls : cs; if (found) - new_len -= ef->size + 4; + new_len -= ef->size + 4; new_len += len + 4; if (new_len > ZIP_UINT16_MAX) { - zip_error_set(&za->error, ZIP_ER_INVAL, 0); - return -1; + zip_error_set(&za->error, ZIP_ER_INVAL, 0); + return -1; } - - if ((ef_new=_zip_ef_new(ef_id, len, data, flags)) == NULL) { - zip_error_set(&za->error, ZIP_ER_MEMORY, 0); - return -1; + + if ((ef_new = _zip_ef_new(ef_id, len, data, flags)) == NULL) { + zip_error_set(&za->error, ZIP_ER_MEMORY, 0); + return -1; } if (found) { - if ((ef->flags & ZIP_EF_BOTH) == (flags & ZIP_EF_BOTH)) { - ef_new->next = ef->next; - ef->next = NULL; - _zip_ef_free(ef); - if (ef_prev) - ef_prev->next = ef_new; - else - de->extra_fields = ef_new; - } - else { - ef->flags &= ~(flags & ZIP_EF_BOTH); - ef_new->next = ef->next; - ef->next = ef_new; - } + if ((ef->flags & ZIP_EF_BOTH) == (flags & ZIP_EF_BOTH)) { + ef_new->next = ef->next; + ef->next = NULL; + _zip_ef_free(ef); + if (ef_prev) + ef_prev->next = ef_new; + else + de->extra_fields = ef_new; + } + else { + ef->flags &= ~(flags & ZIP_EF_BOTH); + ef_new->next = ef->next; + ef->next = ef_new; + } } else if (ef_prev) { - ef_new->next = ef_prev->next; - ef_prev->next = ef_new; + ef_new->next = ef_prev->next; + ef_prev->next = ef_new; } else - de->extra_fields = ef_new; - + de->extra_fields = ef_new; + return 0; } - int -_zip_file_extra_field_prepare_for_change(zip_t *za, zip_uint64_t idx) -{ +_zip_file_extra_field_prepare_for_change(zip_t *za, zip_uint64_t idx) { zip_entry_t *e; - + if (idx >= za->nentry) { zip_error_set(&za->error, ZIP_ER_INVAL, 0); return -1; } - - e = za->entry+idx; - + + e = za->entry + idx; + if (e->changes && (e->changes->changed & ZIP_DIRENT_EXTRA_FIELD)) return 0; if (e->orig) { - if (_zip_read_local_ef(za, idx) < 0) - return -1; + if (_zip_read_local_ef(za, idx) < 0) + return -1; } - + if (e->changes == NULL) { - if ((e->changes=_zip_dirent_clone(e->orig)) == NULL) { + if ((e->changes = _zip_dirent_clone(e->orig)) == NULL) { zip_error_set(&za->error, ZIP_ER_MEMORY, 0); return -1; } } - + if (e->orig && e->orig->extra_fields) { - if ((e->changes->extra_fields=_zip_ef_clone(e->orig->extra_fields, &za->error)) == NULL) - return -1; + if ((e->changes->extra_fields = _zip_ef_clone(e->orig->extra_fields, &za->error)) == NULL) + return -1; } e->changes->changed |= ZIP_DIRENT_EXTRA_FIELD; - + return 0; } - |