VeraCrypt
aboutsummaryrefslogtreecommitdiff
path: root/src/Common/libzip/zip_extra_field_api.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/Common/libzip/zip_extra_field_api.c')
-rw-r--r--src/Common/libzip/zip_extra_field_api.c305
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;
}
-