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Replace message functions with new infraestructure that supports abort

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on error.
This commit is contained in:
Vreixo Formoso
2008-01-22 21:12:27 +01:00
parent 1070fe4cc6
commit 6964f02308
14 changed files with 296 additions and 216 deletions
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172
src/fs_image.c
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@ -713,9 +713,12 @@ char *get_name(_ImageFsData *fsdata, const char *str, size_t len)
if (ret == 1) {
return name;
} else {
iso_msg_sorry(fsdata->msgid, LIBISO_CHARSET_ERROR,
ret = iso_msg_submit(fsdata->msgid, ISO_FILENAME_WRONG_CHARSET,
"Charset conversion error. Can't convert %s from %s to %s",
str, fsdata->input_charset, fsdata->local_charset);
if (ret < 0) {
return NULL; /* aborted */
}
/* fallback */
}
}
@ -773,7 +776,7 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
/* check for unsupported multiextend */
if (record->flags[0] & 0x80) {
iso_msg_fatal(fsdata->msgid, LIBISO_IMG_UNSUPPORTED,
iso_msg_submit(fsdata->msgid, ISO_UNSUPPORTED_ECMA119,
"Unsupported image. This image makes use of Multi-Extend"
" features, that are not supported at this time. If you "
"need support for that, please request us this feature.");
@ -782,7 +785,7 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
/* check for unsupported interleaved mode */
if (record->file_unit_size[0] || record->interleave_gap_size[0]) {
iso_msg_fatal(fsdata->msgid, LIBISO_IMG_UNSUPPORTED,
iso_msg_submit(fsdata->msgid, ISO_UNSUPPORTED_ECMA119,
"Unsupported image. This image has at least one file recorded "
"in interleaved mode. We don't support this mode, as we think "
"it's not used. If you're reading this, then we're wrong :) "
@ -795,7 +798,7 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
* if we don't support them, it is easy to ignore them.
*/
if (record->len_xa[0]) {
iso_msg_fatal(fsdata->msgid, LIBISO_IMG_UNSUPPORTED,
iso_msg_submit(fsdata->msgid, ISO_UNSUPPORTED_ECMA119,
"Unsupported image. This image has at least one file with "
"Extended Attributes, that are not supported");
return ISO_UNSUPPORTED_ECMA119;
@ -831,20 +834,20 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
ret = read_rr_PX(sue, &atts);
if (ret < 0) {
/* notify and continue */
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
"Invalid PX entry");
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR_WARN,
"Invalid PX entry");
}
} else if (SUSP_SIG(sue, 'T', 'F')) {
ret = read_rr_TF(sue, &atts);
if (ret < 0) {
/* notify and continue */
iso_msg_warn(fsdata->msgid, LIBISO_RR_WARNING,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR_WARN,
"Invalid TF entry");
}
} else if (SUSP_SIG(sue, 'N', 'M')) {
if (name != NULL && namecont == 0) {
/* ups, RR standard violation */
iso_msg_warn(fsdata->msgid, LIBISO_RR_WARNING,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR_WARN,
"New NM entry found without previous"
"CONTINUE flag. Ignored");
continue;
@ -852,13 +855,13 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
ret = read_rr_NM(sue, &name, &namecont);
if (ret < 0) {
/* notify and continue */
iso_msg_warn(fsdata->msgid, LIBISO_RR_WARNING,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR_WARN,
"Invalid NM entry");
}
} else if (SUSP_SIG(sue, 'S', 'L')) {
if (linkdest != NULL && linkdestcont == 0) {
/* ups, RR standard violation */
iso_msg_warn(fsdata->msgid, LIBISO_RR_WARNING,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR_WARN,
"New SL entry found without previous"
"CONTINUE flag. Ignored");
continue;
@ -866,7 +869,7 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
ret = read_rr_SL(sue, &linkdest, &linkdestcont);
if (ret < 0) {
/* notify and continue */
iso_msg_warn(fsdata->msgid, LIBISO_RR_WARNING,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR_WARN,
"Invalid SL entry");
}
} else if (SUSP_SIG(sue, 'R', 'E')) {
@ -887,22 +890,20 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
*/
relocated_dir = iso_read_bb(sue->data.CL.child_loc, 4, NULL);
if (relocated_dir == 0) {
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR,
"Invalid SL entry, no child location");
ret = ISO_WRONG_RR;
break;
}
} else if (SUSP_SIG(sue, 'P', 'N')) {
ret = read_rr_PN(sue, &atts);
if (ret < 0) {
/* notify and continue */
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR_WARN,
"Invalid PN entry");
}
} else if (SUSP_SIG(sue, 'S', 'F')) {
iso_msg_sorry(fsdata->msgid, LIBISO_RR_UNSUPPORTED,
ret = iso_msg_submit(fsdata->msgid, ISO_UNSUPPORTED_RR,
"Sparse files not supported.");
ret = ISO_UNSUPPORTED_RR;
break;
} else if (SUSP_SIG(sue, 'R', 'R')) {
/* TODO I've seen this RR on mkisofs images. what's this? */
@ -914,7 +915,7 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
*/
if (parent != NULL) {
/* notify and continue */
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR,
"SP entry found in a directory entry other "
"than '.' entry of root node");
}
@ -926,13 +927,13 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
*/
if (parent != NULL) {
/* notify and continue */
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR,
"ER entry found in a directory entry other "
"than '.' entry of root node");
}
continue;
} else {
iso_msg_hint(fsdata->msgid, LIBISO_SUSP_UNHANLED,
ret = iso_msg_submit(fsdata->msgid, ISO_SUSP_UNHANDLED,
"Unhandled SUSP entry %c%c.", sue->sig[0], sue->sig[1]);
}
}
@ -942,23 +943,20 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
/* check for RR problems */
if (ret < 0) {
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
"Error parsing RR entries");
/* error was already submitted above */
iso_msg_debug(fsdata->msgid, "Error parsing RR entries");
} else if (!relocated_dir && atts.st_mode == (mode_t) 0 ) {
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR, "Mandatory Rock "
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR, "Mandatory Rock "
"Ridge PX entry is not present or it contains invalid values.");
ret = ISO_WRONG_RR;
} else {
/* ensure both name and link dest are finished */
if (namecont != 0) {
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR,
"Incomplete RR name, last NM entry continues");
ret = ISO_WRONG_RR;
}
if (linkdestcont != 0) {
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR,
"Incomplete link destination, last SL entry continues");
ret = ISO_WRONG_RR;
}
}
@ -974,10 +972,15 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
ret = strconv(name, fsdata->input_charset, fsdata->local_charset,
&newname);
if (ret < 0) {
iso_msg_sorry(fsdata->msgid, LIBISO_CHARSET_ERROR,
/* its just a hint message */
ret = iso_msg_submit(fsdata->msgid, ISO_FILENAME_WRONG_CHARSET,
"Charset conversion error. Can't convert %s from %s to %s",
name, fsdata->input_charset, fsdata->local_charset);
free(newname);
if (ret < 0) {
free(name);
return ret;
}
} else {
free(name);
name = newname;
@ -991,10 +994,14 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
ret = strconv(linkdest, fsdata->input_charset,
fsdata->local_charset, &newlinkdest);
if (ret < 0) {
iso_msg_sorry(fsdata->msgid, LIBISO_CHARSET_ERROR,
ret = iso_msg_submit(fsdata->msgid, ISO_FILENAME_WRONG_CHARSET,
"Charset conversion error. Can't convert %s from %s to %s",
linkdest, fsdata->input_charset, fsdata->local_charset);
free(newlinkdest);
if (ret < 0) {
free(name);
return ret;
}
} else {
free(linkdest);
linkdest = newlinkdest;
@ -1022,17 +1029,15 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
if (record->len_fi[0] == 1 && record->file_id[0] == 0) {
/* "." entry, we can call this for root node, so... */
if (!(atts.st_mode & S_IFDIR)) {
iso_msg_sorry(fsdata->msgid, LIBISO_WRONG_IMG,
return iso_msg_submit(fsdata->msgid, ISO_WRONG_ECMA119,
"Wrong ISO file name. \".\" not dir");
return ISO_WRONG_ECMA119;
}
} else {
name = get_name(fsdata, (char*)record->file_id, record->len_fi[0]);
if (name == NULL) {
iso_msg_sorry(fsdata->msgid, LIBISO_WRONG_IMG,
return iso_msg_submit(fsdata->msgid, ISO_WRONG_ECMA119,
"Can't retrieve file name");
return ISO_WRONG_ECMA119;
}
/* remove trailing version number */
@ -1114,10 +1119,10 @@ int iso_file_source_new_ifs(IsoImageFilesystem *fs, IsoFileSource *parent,
/* TODO #00014 : more sanity checks to ensure dir record info is valid */
if (S_ISLNK(atts.st_mode) && (linkdest == NULL)) {
iso_msg_sorry(fsdata->msgid, LIBISO_RR_ERROR,
"Link without destination.");
ret = iso_msg_submit(fsdata->msgid, ISO_WRONG_RR,
"Link without destination.");
free(name);
return ISO_WRONG_RR;
return ret;
}
/* ok, we can now create the file source */
@ -1388,6 +1393,9 @@ void ifs_fs_free(IsoFilesystem *fs)
/**
* Read the SUSP system user entries of the "." entry of the root directory,
* indentifying when Rock Ridge extensions are being used.
*
* @return
* 1 success, 0 ignored, < 0 error
*/
static
int read_root_susp_entries(_ImageFsData *data, uint32_t block)
@ -1433,11 +1441,11 @@ int read_root_susp_entries(_ImageFsData *data, uint32_t block)
/* it is a SP system use entry */
if (sue->version[0] != 1 || sue->data.SP.be[0] != 0xBE
|| sue->data.SP.ef[0] != 0xEF) {
iso_msg_sorry(data->msgid, LIBISO_SUSP_WRONG, "SUSP SP system use "
"entry seems to be wrong. Ignoring Rock Ridge Extensions.");
susp_iter_free(iter);
return ISO_SUCCESS;
return iso_msg_submit(data->msgid, ISO_UNSUPPORTED_SUSP,
"SUSP SP system use entry seems to be wrong. "
"Ignoring Rock Ridge Extensions.");
}
iso_msg_debug(data->msgid, "SUSP/RR is being used.");
@ -1471,10 +1479,13 @@ int read_root_susp_entries(_ImageFsData *data, uint32_t block)
if (SUSP_SIG(sue, 'E', 'R')) {
if (data->rr_version) {
iso_msg_warn(data->msgid, LIBISO_SUSP_MULTIPLE_ER,
ret = iso_msg_submit(data->msgid, ISO_SUSP_MULTIPLE_ER,
"More than one ER has found. This is not supported. "
"It will be ignored, but can cause problems. "
"Please notify us about this.");
if (ret < 0) {
break;
}
}
/*
@ -1497,10 +1508,13 @@ int read_root_susp_entries(_ImageFsData *data, uint32_t block)
"Suitable Rock Ridge ER found. Version 1.12.");
data->rr_version = RR_EXT_112;
} else {
iso_msg_warn(data->msgid, LIBISO_SUSP_MULTIPLE_ER,
ret = iso_msg_submit(data->msgid, ISO_SUSP_MULTIPLE_ER,
"Not Rock Ridge ER found.\n"
"That will be ignored, but can cause problems in "
"image reading. Please notify us about this");
if (ret < 0) {
break;
}
}
}
}
@ -1567,6 +1581,10 @@ int read_pvm(_ImageFsData *data, uint32_t block)
return ISO_SUCCESS;
}
/**
* @return
* 1 success, 0 ignored, < 0 error
*/
static
int read_el_torito_boot_catalog(_ImageFsData *data, uint32_t block)
{
@ -1586,18 +1604,16 @@ int read_el_torito_boot_catalog(_ImageFsData *data, uint32_t block)
if ( (ve->header_id[0] != 1) || (ve->key_byte1[0] != 0x55)
|| (ve->key_byte2[0] != 0xAA) ) {
iso_msg_sorry(data->msgid, LIBISO_EL_TORITO_WRONG,
return iso_msg_submit(data->msgid, ISO_WRONG_EL_TORITO,
"Wrong or damaged El-Torito Catalog. El-Torito info "
"will be ignored.");
return ISO_WRONG_EL_TORITO;
}
/* check for a valid platform */
if (ve->platform_id[0] != 0) {
iso_msg_hint(data->msgid, LIBISO_EL_TORITO_UNHANLED,
return iso_msg_submit(data->msgid, ISO_UNSUPPORTED_EL_TORITO,
"Unsupported El-Torito platform. Only 80x86 is "
"supported. El-Torito info will be ignored.");
return ISO_UNSUPPORTED_EL_TORITO;
}
/* ok, once we are here we assume it is a valid catalog */
@ -1705,14 +1721,20 @@ int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
|| strncmp((char*)vol->boot_sys_id,
"EL TORITO SPECIFICATION", 23)) {
iso_msg_hint(data->msgid, LIBISO_BOOT_VD_UNHANLED,
ret = iso_msg_submit(data->msgid, ISO_UNSUPPORTED_EL_TORITO,
"Unsupported Boot Vol. Desc. Only El-Torito "
"Specification, Version 1.0 Volume "
"Descriptors are supported. Ignoring boot info");
break;
if (ret < 0) {
goto fs_cleanup;
}
break;
}
data->catblock = iso_read_lsb(vol->boot_catalog, 4);
read_el_torito_boot_catalog(data, data->catblock);
ret = read_el_torito_boot_catalog(data, data->catblock);
if (ret < 0) {
goto fs_cleanup;
}
}
break;
case 2:
@ -1746,8 +1768,11 @@ int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
data->evd_root_block = iso_read_bb(root->block, 4, NULL);
/* TODO #00021 : handle RR info in ISO 9660:1999 tree */
} else {
iso_msg_hint(data->msgid, LIBISO_UNSUPPORTED_VD,
ret = iso_msg_submit(data->msgid, ISO_UNSUPPORTED_VD,
"Unsupported Sup. Vol. Desc found.");
if (ret < 0) {
goto fs_cleanup;
}
}
}
break;
@ -1758,8 +1783,11 @@ int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
*/
break;
default:
iso_msg_hint(data->msgid, LIBISO_UNSUPPORTED_VD,
ret = iso_msg_submit(data->msgid, ISO_UNSUPPORTED_VD,
"Ignoring Volume descriptor %x.", buffer[0]);
if (ret < 0) {
goto fs_cleanup;
}
break;
}
block++;
@ -1768,7 +1796,7 @@ int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
/* 4. check if RR extensions are being used */
ret = read_root_susp_entries(data, data->pvd_root_block);
if (ret < 0) {
return ret;
goto fs_cleanup;
}
/* user doesn't want to read RR extensions */
@ -1838,7 +1866,7 @@ static
int image_builder_create_node(IsoNodeBuilder *builder, IsoImage *image,
IsoFileSource *src, IsoNode **node)
{
int result;
int ret;
struct stat info;
IsoNode *new;
char *name;
@ -1853,9 +1881,9 @@ int image_builder_create_node(IsoNodeBuilder *builder, IsoImage *image,
name = iso_file_source_get_name(src);
/* get info about source */
result = iso_file_source_lstat(src, &info);
if (result < 0) {
return result;
ret = iso_file_source_lstat(src, &info);
if (ret < 0) {
return ret;
}
new = NULL;
@ -1868,10 +1896,13 @@ int image_builder_create_node(IsoNodeBuilder *builder, IsoImage *image,
if (fsdata->eltorito && data->block == fsdata->catblock) {
if (image->bootcat->node != NULL) {
iso_msg_hint(image->id, LIBISO_EL_TORITO_UNHANLED,
ret = iso_msg_submit(image->id, ISO_EL_TORITO_WARN,
"More than one catalog node has been found. "
"We will continue, but that could lead to "
"We can continue, but that could lead to "
"problems");
if (ret < 0) {
return ret;
}
iso_node_unref((IsoNode*)image->bootcat->node);
}
@ -1879,9 +1910,9 @@ int image_builder_create_node(IsoNodeBuilder *builder, IsoImage *image,
* a regular file */
new = calloc(1, sizeof(IsoBoot));
if (new == NULL) {
result = ISO_OUT_OF_MEM;
ret = ISO_OUT_OF_MEM;
free(name);
return result;
return ret;
}
/* and set the image node */
@ -1892,10 +1923,10 @@ int image_builder_create_node(IsoNodeBuilder *builder, IsoImage *image,
IsoStream *stream;
IsoFile *file;
result = iso_file_source_stream_new(src, &stream);
if (result < 0) {
ret = iso_file_source_stream_new(src, &stream);
if (ret < 0) {
free(name);
return result;
return ret;
}
/* take a ref to the src, as stream has taken our ref */
iso_file_source_ref(src);
@ -1924,8 +1955,13 @@ int image_builder_create_node(IsoNodeBuilder *builder, IsoImage *image,
if (fsdata->eltorito && data->block == fsdata->imgblock) {
/* it is boot image node */
if (image->bootcat->image->image != NULL) {
iso_msg_hint(image->id, LIBISO_EL_TORITO_UNHANLED,
"More than one image node has been found. ");
ret = iso_msg_submit(image->id, ISO_EL_TORITO_WARN,
"More than one image node has been found.");
if (ret < 0) {
free(name);
iso_stream_unref(stream);
return ret;
}
} else {
/* and set the image node */
image->bootcat->image->image = file;
@ -1953,10 +1989,10 @@ int image_builder_create_node(IsoNodeBuilder *builder, IsoImage *image,
char dest[PATH_MAX];
IsoSymlink *link;
result = iso_file_source_readlink(src, dest, PATH_MAX);
if (result < 0) {
ret = iso_file_source_readlink(src, dest, PATH_MAX);
if (ret < 0) {
free(name);
return result;
return ret;
}
link = malloc(sizeof(IsoSymlink));
if (link == NULL) {