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path: root/src/Common/libzip/zip_extra_field_api.c
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Diffstat (limited to 'src/Common/libzip/zip_extra_field_api.c')
-rw-r--r--src/Common/libzip/zip_extra_field_api.c236
1 files changed, 124 insertions, 112 deletions
diff --git a/src/Common/libzip/zip_extra_field_api.c b/src/Common/libzip/zip_extra_field_api.c
index 469abd2f..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
@@ -40,25 +40,29 @@ zip_file_extra_field_delete(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_idx, zi
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;
+ return -1;
de = za->entry[idx].changes;
@@ -72,25 +76,29 @@ zip_file_extra_field_delete_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_i
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;
+ return -1;
de = za->entry[idx].changes;
@@ -108,34 +116,34 @@ zip_file_extra_field_get(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_idx, zip_u
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;
+ 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;
- }
+ 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);
@@ -148,16 +156,16 @@ zip_file_extra_field_get_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id,
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;
+ 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);
}
@@ -170,21 +178,21 @@ zip_file_extra_fields_count(zip_t *za, zip_uint64_t idx, zip_flags_t flags) {
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;
+ 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++;
+ if (ef->flags & flags & ZIP_EF_BOTH)
+ n++;
return (zip_int16_t)n;
}
@@ -197,21 +205,21 @@ zip_file_extra_fields_count_by_id(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_i
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;
+ 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++;
+ if (ef->id == ef_id && (ef->flags & flags & ZIP_EF_BOTH))
+ n++;
return (zip_int16_t)n;
}
@@ -225,25 +233,29 @@ zip_file_extra_field_set(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_ui
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;
+ return -1;
de = za->entry[idx].changes;
@@ -253,67 +265,67 @@ zip_file_extra_field_set(zip_t *za, zip_uint64_t idx, zip_uint16_t ef_id, zip_ui
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;
+ 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;
+ 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;
}
@@ -324,30 +336,30 @@ _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;
+ zip_error_set(&za->error, ZIP_ER_INVAL, 0);
+ return -1;
}
e = za->entry + idx;
if (e->changes && (e->changes->changed & ZIP_DIRENT_EXTRA_FIELD))
- return 0;
+ 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) {
- zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
- return -1;
- }
+ 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;