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Support for setting default modes for files and dirs.

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This commit is contained in:
Vreixo Formoso 2007-12-27 18:10:14 +01:00
parent 941e2022e8
commit a8636eaa60
6 changed files with 97 additions and 54 deletions
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10
demo/iso.c
View File

@ -31,7 +31,15 @@ int main(int argc, char **argv)
1, /* rockridge */
0, /* omit_version_numbers */
0, /* allow_deep_paths */
0 /* sort files */
0, /* sort files */
0, /* replace_dir_mode */
0, /* replace_file_mode */
0, /* replace_uid */
0, /* replace_gid */
0, /* dir_mode */
0, /* file_mode */
0, /* uid */
0 /* gid */
};
if (argc < 2) {

10
src/ecma119.c
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@ -735,6 +735,16 @@ int ecma119_image_new(IsoImage *src, Ecma119WriteOpts *opts,
target->omit_version_numbers = opts->omit_version_numbers;
target->allow_deep_paths = opts->allow_deep_paths;
target->sort_files = opts->sort_files;
target->replace_uid = opts->replace_uid ? 1 : 0;
target->replace_gid = opts->replace_gid ? 1 : 0;
target->replace_dir_mode = opts->replace_dir_mode ? 1 : 0;
target->replace_file_mode = opts->replace_file_mode ? 1 : 0;
target->uid = opts->replace_uid == 2 ? opts->uid : 0;
target->gid = opts->replace_gid == 2 ? opts->gid : 0;
target->dir_mode = opts->replace_dir_mode == 2 ? opts->dir_mode : 0555;
target->file_mode = opts->replace_file_mode == 2 ? opts->file_mode : 0444;
target->now = time(NULL);
target->ms_block = 0;

31
src/ecma119.h
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@ -35,23 +35,22 @@ struct ecma119_image {
/* relaxed constraints */
unsigned int omit_version_numbers:1;
unsigned int allow_deep_paths:1;
// int relaxed_constraints; /**< see ecma119_relaxed_constraints_flag */
//
// int replace_mode; /**< Replace ownership and modes of files
// *
// * 0. filesystem values
// * 1. useful values
// * bits 1-4 bitmask:
// * 2 - replace dir
// * 3 - replace file
// * 4 - replace gid
// * 5 - replace uid
// */
// mode_t dir_mode;
// mode_t file_mode;
// gid_t gid;
// uid_t uid;
/*
* Mode replace. If one of these flags is set, the correspodent values are
* replaced with values below.
*/
unsigned int replace_uid:1;
unsigned int replace_gid:1;
unsigned int replace_file_mode:1;
unsigned int replace_dir_mode:1;
uid_t uid;
gid_t gid;
mode_t file_mode;
mode_t dir_mode;
int sort_files; /**< if sort files or not. Sorting is based of
* the weight of each file */

57
src/libisofs.h
View File

@ -79,41 +79,30 @@ typedef struct {
* its size. In those cases, we only copy 1 block of data.
*/
/**< If files should be sorted based on their weight. */
unsigned int sort_files:1;
/**< If files should be sorted based on their weight. */
// unsigned int default_mode:1;
// /**<
// * The default values for files and directory permissions,
// * gid and uid. This option can be overwritten when set
// * one of the following.
// * 0 to use useful values, 1 to use node modes (this are
// * the same as filesystem ones if not changed after added
// * to tree).
// */
// unsigned int replace_dir_mode:1;
// /**<
// * When 1, permissions for all dirs will be replaced by the
// * specified in dir_mode field.
// */
// unsigned int replace_file_mode:1;
// /**<
// * When 1, permissions for all files will be replaced by the
// * specified in file_mode field.
// */
// unsigned int replace_uid:1;
// /**<
// * When 1, uid of all nodes (both files and dirs) will be
// * replaced by the specified in uid field.
// */
// unsigned int replace_gid:1;
// /**<
// * When 1, gid of all nodes (both files and dirs) will be
// * replaced by the specified in gid field.
// */
// mode_t dir_mode; /**< Mode to use on dirs when replace_dir_mode is set. */
// mode_t file_mode; /**< Mode to use on files when replace_file_mode is set. */
// gid_t gid; /**< gid to use when replace_gid is set. */
// uid_t uid; /**< uid to use when replace_uid is set. */
/**
* The following options set the default values for files and directory
* permissions, gid and uid. All these take one of three values: 0, 1 or 2.
* If 0, the corresponding attribute will be kept as setted in the IsoNode.
* Unless you have changed it, it corresponds to the value on disc, so it
* is suitable for backup purposes. If set to 1, the corresponding attrib.
* will be changed by a default suitable value. Finally, if you set it to
* 2, the attrib. will be changed with the value specified in the options
* below. Note that for mode attributes, only the permissions are set, the
* file type remains unchanged.
*/
unsigned int replace_dir_mode:2;
unsigned int replace_file_mode:2;
unsigned int replace_uid:2;
unsigned int replace_gid:2;
mode_t dir_mode; /** Mode to use on dirs when replace_dir_mode == 2. */
mode_t file_mode; /** Mode to use on files when replace_file_mode == 2. */
gid_t gid; /** gid to use when replace_gid == 2. */
uid_t uid; /** uid to use when replace_uid == 2. */
// char *input_charset; /**< NULL to use default charset */
// char *ouput_charset; /**< NULL to use default charset */
// uint32_t ms_block;

41
src/rockridge.c
View File

@ -43,6 +43,41 @@ int susp_append_ce(Ecma119Image *t, struct susp_info *susp, uint8_t *data)
return ISO_SUCCESS;
}
static
uid_t px_get_uid(Ecma119Image *t, Ecma119Node *n)
{
if (t->replace_uid) {
return t->uid;
} else {
return n->node->uid;
}
}
static
uid_t px_get_gid(Ecma119Image *t, Ecma119Node *n)
{
if (t->replace_gid) {
return t->gid;
} else {
return n->node->gid;
}
}
static
mode_t px_get_mode(Ecma119Image *t, Ecma119Node *n)
{
if ((n->type == ECMA119_DIR || n->type == ECMA119_PLACEHOLDER)) {
if (t->replace_dir_mode) {
return (n->node->mode & S_IFMT) | t->dir_mode;
}
} else {
if (t->replace_file_mode) {
return (n->node->mode & S_IFMT) | t->file_mode;
}
}
return n->node->mode;
}
/**
* Add a PX System Use Entry. The PX System Use Entry is used to add POSIX
* file attributes, such as access permissions or user and group id, to a
@ -60,10 +95,10 @@ int rrip_add_PX(Ecma119Image *t, Ecma119Node *n, struct susp_info *susp)
PX[1] = 'X';
PX[2] = 44;
PX[3] = 1;
iso_bb(&PX[4], n->node->mode, 4);
iso_bb(&PX[4], px_get_mode(t, n), 4);
iso_bb(&PX[12], n->nlink, 4);
iso_bb(&PX[20], n->node->uid, 4);
iso_bb(&PX[28], n->node->gid, 4);
iso_bb(&PX[20], px_get_uid(t, n), 4);
iso_bb(&PX[28], px_get_gid(t, n), 4);
iso_bb(&PX[36], n->ino, 4);
return susp_append(t, susp, PX);

2
test/test_rockridge.c
View File

@ -204,6 +204,8 @@ void test_rrip_get_susp_fields_file()
Ecma119Image t;
uint8_t *entry;
memset(&t, 0, sizeof(Ecma119Image));
file = malloc(sizeof(IsoFile));
CU_ASSERT_PTR_NOT_NULL_FATAL(file);
file->msblock = 0;