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libisofs/libisofs/messages.c

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/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2009 - 2023 Thomas Schmitt
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* or later as published by the Free Software Foundation.
* See COPYING file for details.
*/
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include <stdlib.h>
#include <sys/types.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#ifdef Xorriso_standalonE
#ifdef Xorriso_with_libjtE
#include "../libjte/libjte.h"
#endif
#else
#ifdef Libisofs_with_libjtE
#include <libjte/libjte.h>
#endif
#endif /* ! Xorriso_standalonE */
#include "libiso_msgs.h"
#include "libisofs.h"
#include "messages.h"
#include "util.h"
#include "node.h"
#include "stream.h"
/*
* error codes are 32 bit numbers, that follow the following conventions:
*
* bit 31 (MSB) -> 1 (to make the value always negative)
* bits 30-24 -> Encoded severity (Use ISO_ERR_SEV to translate an error code
* to a LIBISO_MSGS_SEV_* constant)
* = 0x10 -> DEBUG
* = 0x20 -> UPDATE
* = 0x30 -> NOTE
* = 0x40 -> HINT
* = 0x50 -> WARNING
* = 0x60 -> SORRY
* = 0x64 -> MISHAP
* = 0x68 -> FAILURE
* = 0x70 -> FATAL
* = 0x71 -> ABORT
* bits 23-20 -> Encoded priority (Use ISO_ERR_PRIO to translate an error code
* to a LIBISO_MSGS_PRIO_* constant)
* = 0x0 -> ZERO
* = 0x1 -> LOW
* = 0x2 -> MEDIUM
* = 0x3 -> HIGH
* bits 19-16 -> Reserved for future usage (maybe message ranges)
* bits 15-0 -> Error code
*/
#define ISO_ERR_SEV(e) (e & 0x7F000000)
#define ISO_ERR_PRIO(e) ((e & 0x00700000) << 8)
#define ISO_ERR_CODE(e) ((e & 0x0000FFFF) | 0x00030000)
int iso_message_id = LIBISO_MSGS_ORIGIN_IMAGE_BASE;
/**
* Threshold for aborting.
*/
int abort_threshold = LIBISO_MSGS_SEV_FAILURE;
#define MAX_MSG_LEN 4096
struct libiso_msgs *libiso_msgr = NULL;
/* ------------- List of xinfo clone functions ----------- */
struct iso_xinfo_cloner_assoc {
iso_node_xinfo_func proc;
iso_node_xinfo_cloner cloner;
struct iso_xinfo_cloner_assoc *next;
};
struct iso_xinfo_cloner_assoc *iso_xinfo_cloner_list = NULL;
/* API */
int iso_node_xinfo_make_clonable(iso_node_xinfo_func proc,
iso_node_xinfo_cloner cloner, int flag)
{
struct iso_xinfo_cloner_assoc *assoc;
/* Look for existing assoc of proc */
for (assoc = iso_xinfo_cloner_list; assoc != NULL; assoc = assoc->next)
if (assoc->proc == proc)
break;
if (assoc == NULL) {
assoc = calloc(1, sizeof(struct iso_xinfo_cloner_assoc));
if (assoc == NULL)
return ISO_OUT_OF_MEM;
assoc->proc = proc;
assoc->next = iso_xinfo_cloner_list;
iso_xinfo_cloner_list = assoc;
}
assoc->cloner = cloner;
return ISO_SUCCESS;
}
/* API */
int iso_node_xinfo_get_cloner(iso_node_xinfo_func proc,
iso_node_xinfo_cloner *cloner, int flag)
{
struct iso_xinfo_cloner_assoc *assoc;
*cloner = NULL;
for (assoc = iso_xinfo_cloner_list; assoc != NULL; assoc = assoc->next) {
if (assoc->proc != proc)
continue;
*cloner = assoc->cloner;
return 1;
}
return 0;
}
static
int iso_node_xinfo_dispose_cloners(int flag)
{
struct iso_xinfo_cloner_assoc *assoc, *next;
for (assoc = iso_xinfo_cloner_list; assoc != NULL; assoc = next) {
next = assoc->next;
free((char *) assoc);
}
iso_xinfo_cloner_list= NULL;
return(1);
}
/* ------------- End of xinfo clone functions list ----------- */
/*
@param flag bit0= do not set up locale by LC_* environment variables
*/
int iso_init_with_flag(int flag)
{
int ret;
#ifdef Libisofs_with_libjtE
/* Ugly compile time check for header version compatibility.
If everything matches, then it produces no C code. In case of mismatch,
intentionally faulty C code will be inserted.
*/
/* The indentation is an advise of man gcc to help old compilers ignoring */
#if iso_libjte_req_major > LIBJTE_VERSION_MAJOR
#define Libisofs_libjte_dot_h_too_olD 1
#endif
#if iso_libjte_req_major == LIBJTE_VERSION_MAJOR && iso_libjte_req_minor > LIBJTE_VERSION_MINOR
#define Libisofs_libjte_dot_h_too_olD 1
#endif
#if iso_libjte_req_minor == LIBJTE_VERSION_MINOR && iso_libjte_req_micro > LIBJTE_VERSION_MICRO
#define Libisofs_libjte_dot_h_too_olD 1
#endif
#ifdef Libisofs_libjte_dot_h_too_olD
LIBJTE_MISCONFIGURATION = 0;
INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_libjte_dot_h_TOO_OLD__SEE_libisofs_dot_h_AND_messages_c = 0;
LIBJTE_MISCONFIGURATION_ = 0;
#endif
if (! libjte__is_compatible(LIBJTE_VERSION_MAJOR, LIBJTE_VERSION_MINOR,
LIBJTE_VERSION_MICRO, 0)) {
fprintf(stderr,
"\nlibisofs: libjte TOO OLD ! Need at least libjte-%d.%d.%d\n\n",
LIBJTE_VERSION_MAJOR, LIBJTE_VERSION_MINOR,
LIBJTE_VERSION_MICRO);
return ISO_FATAL_ERROR;
}
#endif /* Libisofs_with_libjtE */
if (! (flag & 1)) {
iso_init_locale(0);
}
if (libiso_msgr == NULL) {
if (libiso_msgs_new(&libiso_msgr, 0) <= 0)
return ISO_FATAL_ERROR;
}
libiso_msgs_set_severities(libiso_msgr, LIBISO_MSGS_SEV_NEVER,
LIBISO_MSGS_SEV_FATAL, "libisofs: ", 0);
ret = iso_node_xinfo_make_clonable(aaip_xinfo_func, aaip_xinfo_cloner, 0);
if (ret < 0)
return ret;
ret = iso_node_xinfo_make_clonable(checksum_cx_xinfo_func,
checksum_cx_xinfo_cloner, 0);
if (ret < 0)
return ret;
ret = iso_node_xinfo_make_clonable(checksum_md5_xinfo_func,
checksum_md5_xinfo_cloner, 0);
if (ret < 0)
return ret;
ret = iso_node_xinfo_make_clonable(zisofs_zf_xinfo_func,
zisofs_zf_xinfo_cloner, 0);
if (ret < 0)
return ret;
ret = iso_node_xinfo_make_clonable(iso_px_ino_xinfo_func,
iso_px_ino_xinfo_cloner, 0);
if (ret < 0)
return ret;
ret = iso_node_xinfo_make_clonable(iso_hfsplus_xinfo_func,
iso_hfsplus_xinfo_cloner, 0);
if (ret < 0)
return ret;
return 1;
}
int iso_init()
{
return iso_init_with_flag(0);
}
void iso_finish()
{
libiso_msgs_destroy(&libiso_msgr, 0);
iso_node_xinfo_dispose_cloners(0);
iso_stream_destroy_cmpranks(0);
}
int iso_set_abort_severity(char *severity)
{
int ret, sevno;
ret = libiso_msgs__text_to_sev(severity, &sevno, 0);
if (ret <= 0)
return ISO_WRONG_ARG_VALUE;
if (sevno > LIBISO_MSGS_SEV_FAILURE || sevno < LIBISO_MSGS_SEV_NOTE)
return ISO_WRONG_ARG_VALUE;
ret = abort_threshold;
abort_threshold = sevno;
return ret;
}
void iso_msg_debug(int imgid, const char *fmt, ...)
{
char *msg = NULL;
va_list ap;
LIBISO_ALLOC_MEM_VOID(msg, char, MAX_MSG_LEN);
va_start(ap, fmt);
vsnprintf(msg, MAX_MSG_LEN, fmt, ap);
va_end(ap);
libiso_msgs_submit(libiso_msgr, imgid, 0x00000002, LIBISO_MSGS_SEV_DEBUG,
LIBISO_MSGS_PRIO_ZERO, msg, 0, 0);
ex:;
LIBISO_FREE_MEM(msg);
}
const char *iso_error_to_msg(int errcode)
{
switch(errcode) {
case ISO_CANCELED:
return "Operation canceled";
case ISO_FATAL_ERROR:
return "Unknown or unexpected fatal error";
case ISO_ERROR:
return "Unknown or unexpected error";
case ISO_ASSERT_FAILURE:
return "Internal programming error. Please report this bug";
case ISO_NULL_POINTER:
return "NULL pointer as value for an arg. that does not allow NULL";
case ISO_OUT_OF_MEM:
return "Memory allocation error";
case ISO_INTERRUPTED:
return "Interrupted by a signal";
case ISO_WRONG_ARG_VALUE:
return "Invalid parameter value";
case ISO_THREAD_ERROR:
return "Cannot create a needed thread";
case ISO_WRITE_ERROR:
return "Write error";
case ISO_BUF_READ_ERROR:
return "Buffer read error";
case ISO_NODE_ALREADY_ADDED:
return "Trying to add to a dir a node already added to a dir";
case ISO_NODE_NAME_NOT_UNIQUE:
return "Node with same name already exists";
case ISO_NODE_NOT_ADDED_TO_DIR:
return "Trying to remove a node that was not added to dir";
case ISO_NODE_DOESNT_EXIST:
return "A requested node does not exist";
case ISO_IMAGE_ALREADY_BOOTABLE:
return "Try to set the boot image of an already bootable image";
case ISO_BOOT_IMAGE_NOT_VALID:
return "Trying to use an invalid file as boot image";
case ISO_BOOT_IMAGE_OVERFLOW:
return "Too many boot images added";
case ISO_FILE_ERROR:
return "Error on file operation";
case ISO_FILE_ALREADY_OPENED:
return "Trying to open an already opened file";
case ISO_FILE_ACCESS_DENIED:
return "Access to file is not allowed";
case ISO_FILE_BAD_PATH:
return "Incorrect path to file";
case ISO_FILE_DOESNT_EXIST:
return "The file does not exist in the filesystem";
case ISO_FILE_NOT_OPENED:
return "Trying to read or close a file not opened";
case ISO_FILE_IS_DIR:
return "Directory used where no dir is expected";
case ISO_FILE_READ_ERROR:
return "Read error";
case ISO_FILE_IS_NOT_DIR:
return "Not dir used where a dir is expected";
case ISO_FILE_IS_NOT_SYMLINK:
return "Not symlink used where a symlink is expected";
case ISO_FILE_SEEK_ERROR:
return "Cannot seek to specified location";
case ISO_FILE_IGNORED:
return "File not supported in ECMA-119 tree and thus ignored";
case ISO_FILE_TOO_BIG:
return "A file is bigger than supported by used standard";
case ISO_FILE_CANT_WRITE:
return "File read error during image creation";
case ISO_FILENAME_WRONG_CHARSET:
case ISO_FILENAME_WRONG_CHARSET_OLD:
return "Cannot convert filename to requested charset";
case ISO_FILE_CANT_ADD:
return "File cannot be added to the tree";
case ISO_FILE_IMGPATH_WRONG:
return "File path break specification constraints and will be ignored";
case ISO_CHARSET_CONV_ERROR:
return "Charset conversion error";
case ISO_MANGLE_TOO_MUCH_FILES:
return "Too much files to mangle, cannot guarantee unique file names";
case ISO_WRONG_PVD:
return "Wrong or damaged Primary Volume Descriptor";
case ISO_WRONG_RR:
return "Wrong or damaged Rock Ridge entry";
case ISO_UNSUPPORTED_RR:
return "Unsupported Rock Ridge feature";
case ISO_WRONG_ECMA119:
return "Wrong or damaged ECMA-119";
case ISO_UNSUPPORTED_ECMA119:
return "Unsupported ECMA-119 feature";
case ISO_WRONG_EL_TORITO:
return "Wrong or damaged El-Torito catalog";
case ISO_UNSUPPORTED_EL_TORITO:
return "Unsupported El-Torito feature";
case ISO_ISOLINUX_CANT_PATCH:
return "Cannot patch isolinux boot image";
case ISO_UNSUPPORTED_SUSP:
return "Unsupported SUSP feature";
case ISO_WRONG_RR_WARN:
return "Error on a Rock Ridge entry that can be ignored";
case ISO_SUSP_UNHANDLED:
return "Unhandled SUSP entry";
case ISO_SUSP_MULTIPLE_ER:
return "Multiple ER SUSP entries found";
case ISO_UNSUPPORTED_VD:
return "Unsupported volume descriptor found";
case ISO_EL_TORITO_WARN:
return "El-Torito related warning";
case ISO_IMAGE_WRITE_CANCELED:
return "Image write cancelled";
case ISO_EL_TORITO_HIDDEN:
return "El-Torito image is hidden";
case ISO_DATA_SOURCE_SORRY:
case ISO_DATA_SOURCE_MISHAP:
case ISO_DATA_SOURCE_FAILURE:
case ISO_DATA_SOURCE_FATAL:
return "Read error occurred with IsoDataSource";
case ISO_AAIP_IGNORED:
return "AAIP info with ACL or xattr in ISO image will be ignored";
case ISO_AAIP_BAD_ACL:
return "Error with decoding ACL from AAIP info";
case ISO_AAIP_BAD_ACL_TEXT:
return "Error with encoding ACL for AAIP";
case ISO_AAIP_NOT_ENABLED:
return "AAIP processing for ACL or xattr not enabled at compile time";
case ISO_AAIP_BAD_AASTRING:
return "Error with decoding AAIP info for ACL or xattr";
case ISO_AAIP_NO_GET_LOCAL:
case ISO_AAIP_NO_GET_LOCAL_S:
return "Error with reading ACL or xattr from local file";
case ISO_AAIP_NO_SET_LOCAL:
case ISO_AAIP_NO_SET_LOCAL_S:
return "Error with attaching ACL or xattr to local file";
case ISO_AAIP_NON_USER_NAME:
return "Unallowed attempt to set an xattr with non-userspace name";
case ISO_EXTF_TOO_OFTEN:
return "Too many references on a single external filter command";
case ISO_ZLIB_NOT_ENABLED:
return "Use of zlib was not enabled at compile time";
case ISO_ZISOFS_TOO_LARGE:
return "File too large. Cannot apply zisofs filter.";
case ISO_FILTER_WRONG_INPUT:
return "Filter input differs from previous run";
case ISO_ZLIB_COMPR_ERR:
return "zlib compression/decompression error";
case ISO_ZISOFS_WRONG_INPUT:
return "Input stream is not in a supported zisofs format";
case ISO_ZISOFS_PARAM_LOCK:
return "Cannot set global zisofs parameters while filters exist";
case ISO_ZLIB_EARLY_EOF:
return "Premature EOF of zlib input stream";
case ISO_MD5_AREA_CORRUPTED:
return "Checksum area or checksum tag appear corrupted";
case ISO_MD5_TAG_MISMATCH:
return "Checksum mismatch between checksum tag and data blocks";
case ISO_SB_TREE_CORRUPTED:
return "Checksum mismatch in System Area, Volume Descriptors, or directory tree";
case ISO_MD5_TAG_UNEXPECTED:
return "Unexpected checksum tag type encountered";
case ISO_MD5_TAG_MISPLACED:
return "Misplaced checksum tag type encountered";
case ISO_MD5_TAG_OTHER_RANGE:
return "Checksum tag with unexpected address range encountered";
case ISO_MD5_STREAM_CHANGE:
return "Detected file content changes while it was written into the image";
case ISO_SCDBACKUP_TAG_NOT_0:
return "Session does not start at LBA 0. scdbackup checksum tag not written.";
case ISO_BOOT_NO_CATALOG:
return "No boot catalog created yet";
case ISO_OVWRT_MS_TOO_SMALL:
return "Multi-session offset too small for overwrite buffer";
case ISO_PART_OFFST_TOO_SMALL:
return "Partition offset too small for first tree root.";
case ISO_OVWRT_FIFO_TOO_SMALL:
return "The ring buffer is too small for overwrite buffer";
case ISO_LIBJTE_NOT_ENABLED:
return "Use of libjte was not enabled at compile time";
case ISO_LIBJTE_START_FAILED:
return "Failed to start up Jigdo Template Extraction";
case ISO_LIBJTE_END_FAILED:
return "Failed to finish Jigdo Template Extraction";
case ISO_LIBJTE_FILE_FAILED:
return "Failed to process file for Jigdo Template Extraction";
case ISO_BOOT_TOO_MANY_MIPS:
return "Too many MIPS Big Endian boot files given (max. 15)";
case ISO_BOOT_FILE_MISSING:
return "Boot file missing in image";
case ISO_BAD_PARTITION_NO:
return "Partition number out of range";
case ISO_BAD_PARTITION_FILE:
return "Cannot open data file for appended partition";
case ISO_NON_MBR_SYS_AREA:
return "May not combine MBR partition with non-MBR system area";
case ISO_DISPLACE_ROLLOVER:
return "Displacement offset leads outside 32 bit range";
case ISO_NAME_NEEDS_TRANSL:
return "File name cannot be written into ECMA-119 untranslated";
case ISO_STREAM_NO_CLONE:
return "Data file input stream object offers no cloning method";
case ISO_XINFO_NO_CLONE:
return "Extended information class offers no cloning method";
case ISO_MD5_TAG_COPIED:
return "Found copied superblock checksum tag";
case ISO_RR_NAME_TOO_LONG:
return "Rock Ridge leaf name too long";
case ISO_RR_NAME_RESERVED:
return "Reserved Rock Ridge leaf name";
case ISO_RR_PATH_TOO_LONG:
return "Rock Ridge path too long";
case ISO_AAIP_BAD_ATTR_NAME:
return "Attribute name cannot be represented";
case ISO_AAIP_ACL_MULT_OBJ:
return "ACL text contains multiple entries of user::, group::, other::";
case ISO_SECT_SCATTERED:
return "File sections do not form consecutive array of blocks";
case ISO_BOOT_TOO_MANY_APM:
return "Too many Apple Partition Map entries requested";
case ISO_BOOT_APM_OVERLAP:
return "Overlapping Apple Partition Map entries requested";
case ISO_BOOT_TOO_MANY_GPT:
return "Too many GPT entries requested";
case ISO_BOOT_GPT_OVERLAP:
return "Overlapping GPT entries requested";
case ISO_BOOT_TOO_MANY_MBR:
return "Too many MBR partition entries requested";
case ISO_BOOT_MBR_OVERLAP:
return "Overlapping MBR partition entries requested";
case ISO_BOOT_MBR_COLLISION:
return "Attempt to use an MBR partition entry twice";
case ISO_BOOT_NO_EFI_ELTO:
return "No suitable El Torito EFI boot image for exposure as GPT partition";
case ISO_BOOT_HFSP_BAD_BSIZE:
return "Not a supported HFS+ or APM block size";
case ISO_BOOT_APM_GPT_BSIZE:
return "APM block size prevents coexistence with GPT";
case ISO_HFSP_NO_MANGLE:
return "Name collision in HFS+, mangling not possible";
case ISO_DEAD_SYMLINK:
return "Symbolic link cannot be resolved";
case ISO_DEEP_SYMLINK:
return "Too many chained symbolic links";
case ISO_BAD_ISO_FILETYPE:
return "Unrecognized file type in ISO image";
case ISO_NAME_NOT_UCS2:
return "Filename not suitable for character set UCS-2";
case ISO_IMPORT_COLLISION:
return "File name collision during ISO image import";
case ISO_HPPA_PALO_INCOMPL:
return "Incomplete HP-PA PALO boot parameters";
case ISO_HPPA_PALO_OFLOW:
return "HP-PA PALO boot address exceeds 2 GB";
case ISO_HPPA_PALO_NOTREG:
return "HP-PA PALO file is not a data file";
case ISO_HPPA_PALO_CMDLEN:
return "HP-PA PALO command line too long";
case ISO_SYSAREA_PROBLEMS:
return "Problems encountered during inspection of System Area";
case ISO_INQ_SYSAREA_PROP:
return "Unrecognized inquiry for system area property";
case ISO_ALPHA_BOOT_NOTREG:
return "DEC Alpha Boot Loader file is not a data file";
case ISO_NO_KEPT_DATA_SRC:
return "No data source of imported ISO image available";
case ISO_MALFORMED_READ_INTVL:
return "Malformed description string for interval reader";
case ISO_INTVL_READ_PROBLEM:
return "Unreadable file, premature EOF, or failure to seek for interval reader";
case ISO_NOT_REPRODUCIBLE:
return "Cannot arrange content of data files in surely reproducible way";
case ISO_PATCH_FILTERED_BOOT:
return "May not write boot info into filtered stream of boot image";
case ISO_PATCH_OVERSIZED_BOOT:
return "Boot image to large to buffer for writing boot info";
case ISO_RR_NAME_TRUNCATED:
return "File name had to be truncated and MD5 marked";
case ISO_TRUNCATE_ISOFSNT:
return "File name truncation length changed by loaded image info";
case ISO_GENERAL_NOTE:
return "A general note message was issued";
case ISO_BAD_FSRC_FILETYPE:
return "Unrecognized file type of IsoFileSrc object";
case ISO_GPT_NO_VOL_UUID:
return "Cannot derive GPT GUID from undefined pseudo-UUID volume timestamp";
case ISO_BAD_GPT_GUID_MODE:
return "Unrecognized GPT disk GUID setup mode";
case ISO_NO_ROOT_DIR:
return "Unable to obtain root directory";
case ISO_SUSP_WRONG_CE_SIZE:
return "Zero sized, oversized, or mislocated SUSP CE area found";
case ISO_MULTI_OVER_IMPORTED:
return "Multi-session would overwrite imported_iso interval";
case ISO_ELTO_EFI_HIDDEN:
return "El-Torito EFI image is hidden";
case ISO_HFSPLUS_TOO_MANY_FILES:
return "Too many files in HFS+ directory tree";
case ISO_ZISOFS_TOO_MANY_PTR:
return "Too many zisofs block pointers needed overall";
case ISO_ZISOFS_BPT_UNDERRUN:
return "Prevented zisofs block pointer counter underrun";
case ISO_ZISOFS_UNKNOWN_SIZE:
return "Cannot obtain size of zisofs compressed stream";
case ISO_UNDEF_READ_FEATURE:
return "Undefined IsoReadImageFeatures name";
case ISO_TOO_MANY_CE:
return "Too many CE entries for single file";
case ISO_TOO_MANY_CE_FOR_LINUX:
return "Too many CE entries for single file when mounted by Linux";
case ISO_CE_REMOVING_ATTR:
return "Too many CE entries for single file, removing attributes";
default:
return "Unknown error";
}
}
int iso_msg_is_abort(int errcode)
{
if (ISO_ERR_SEV(errcode) >= abort_threshold)
return 1;
return 0;
}
int iso_msg_submit(int imgid, int errcode, int causedby, const char *fmt, ...)
{
char msg[MAX_MSG_LEN];
va_list ap;
/* when called with ISO_CANCELED, we don't need to submit any message */
if (errcode == (int) ISO_CANCELED && fmt == NULL) {
return ISO_CANCELED;
}
if (fmt) {
va_start(ap, fmt);
vsnprintf(msg, MAX_MSG_LEN, fmt, ap);
va_end(ap);
} else {
strncpy(msg, iso_error_to_msg(errcode), MAX_MSG_LEN - 1);
msg[MAX_MSG_LEN - 1] = 0;
}
libiso_msgs_submit(libiso_msgr, imgid, ISO_ERR_CODE(errcode),
ISO_ERR_SEV(errcode), ISO_ERR_PRIO(errcode), msg, 0, 0);
if (causedby != 0) {
snprintf(msg, MAX_MSG_LEN, " > Caused by: %s",
iso_error_to_msg(causedby));
libiso_msgs_submit(libiso_msgr, imgid, ISO_ERR_CODE(causedby),
LIBISO_MSGS_SEV_NOTE, LIBISO_MSGS_PRIO_LOW, msg, 0, 0);
if (ISO_ERR_SEV(causedby) == LIBISO_MSGS_SEV_FATAL) {
return ISO_CANCELED;
}
}
if (iso_msg_is_abort(errcode)) {
return ISO_CANCELED;
} else {
return 0;
}
}
/**
* Control queueing and stderr printing of messages from libisofs.
* Severity may be one of "NEVER", "FATAL", "SORRY", "WARNING", "HINT",
* "NOTE", "UPDATE", "DEBUG", "ALL".
*
* @param queue_severity Gives the minimum limit for messages to be queued.
* Default: "NEVER". If you queue messages then you
* must consume them by iso_msgs_obtain().
* @param print_severity Does the same for messages to be printed directly
* to stderr.
* @param print_id A text prefix to be printed before the message.
* @return >0 for success, <=0 for error
*/
int iso_set_msgs_severities(char *queue_severity, char *print_severity,
char *print_id)
{
int ret, queue_sevno, print_sevno;
ret = libiso_msgs__text_to_sev(queue_severity, &queue_sevno, 0);
if (ret <= 0)
return 0;
ret = libiso_msgs__text_to_sev(print_severity, &print_sevno, 0);
if (ret <= 0)
return 0;
ret = libiso_msgs_set_severities(libiso_msgr, queue_sevno, print_sevno,
print_id, 0);
if (ret <= 0)
return 0;
return 1;
}
/**
* Obtain the oldest pending libisofs message from the queue which has at
* least the given minimum_severity. This message and any older message of
* lower severity will get discarded from the queue and is then lost forever.
*
* Severity may be one of "NEVER", "FATAL", "SORRY", "WARNING", "HINT",
* "NOTE", "UPDATE", "DEBUG", "ALL". To call with minimum_severity "NEVER"
* will discard the whole queue.
*
* @param error_code Will become a unique error code as listed in messages.h
* @param imgid Id of the image that was issued the message.
* @param msg_text Must provide at least ISO_MSGS_MESSAGE_LEN bytes.
* @param severity Will become the severity related to the message and
* should provide at least 80 bytes.
* @return 1 if a matching item was found, 0 if not, <0 for severe errors
*/
int iso_obtain_msgs(char *minimum_severity, int *error_code, int *imgid,
char msg_text[], char severity[])
{
int ret, minimum_sevno, sevno, priority, os_errno;
double timestamp;
pid_t pid;
char *textpt, *sev_name;
struct libiso_msgs_item *item= NULL;
ret = libiso_msgs__text_to_sev(minimum_severity, &minimum_sevno, 0);
if (ret <= 0)
return 0;
ret = libiso_msgs_obtain(libiso_msgr, &item, minimum_sevno,
LIBISO_MSGS_PRIO_ZERO, 0);
if (ret <= 0)
goto ex;
ret = libiso_msgs_item_get_msg(item, error_code, &textpt, &os_errno, 0);
if (ret <= 0)
goto ex;
strncpy(msg_text, textpt, ISO_MSGS_MESSAGE_LEN-1);
if (strlen(textpt) >= ISO_MSGS_MESSAGE_LEN)
msg_text[ISO_MSGS_MESSAGE_LEN-1] = 0;
ret = libiso_msgs_item_get_origin(item, &timestamp, &pid, imgid, 0);
if (ret <= 0)
goto ex;
severity[0]= 0;
ret = libiso_msgs_item_get_rank(item, &sevno, &priority, 0);
if (ret <= 0)
goto ex;
ret = libiso_msgs__sev_to_text(sevno, &sev_name, 0);
if (ret <= 0)
goto ex;
strcpy(severity, sev_name);
ret = 1;
ex: ;
libiso_msgs_destroy_item(libiso_msgr, &item, 0);
return ret;
}
int iso_msgs_submit(int error_code, char msg_text[], int os_errno,
char severity[], int origin)
{
int ret, sevno;
ret = libiso_msgs__text_to_sev(severity, &sevno, 0);
if (ret <= 0)
sevno = LIBISO_MSGS_SEV_ALL;
if (error_code <= 0) {
switch(sevno) {
case LIBISO_MSGS_SEV_ABORT: error_code = 0x00040000;
break; case LIBISO_MSGS_SEV_FATAL: error_code = 0x00040001;
break; case LIBISO_MSGS_SEV_SORRY: error_code = 0x00040002;
break; case LIBISO_MSGS_SEV_WARNING: error_code = 0x00040003;
break; case LIBISO_MSGS_SEV_HINT: error_code = 0x00040004;
break; case LIBISO_MSGS_SEV_NOTE: error_code = 0x00040005;
break; case LIBISO_MSGS_SEV_UPDATE: error_code = 0x00040006;
break; case LIBISO_MSGS_SEV_DEBUG: error_code = 0x00040007;
break; default: error_code = 0x00040008;
}
}
ret = libiso_msgs_submit(libiso_msgr, origin, error_code,
sevno, LIBISO_MSGS_PRIO_HIGH, msg_text, os_errno, 0);
return ret;
}
int iso_text_to_sev(char *severity_name, int *sevno)
{
int ret;
ret = libiso_msgs__text_to_sev(severity_name, sevno, 0);
if (ret <= 0)
*sevno = LIBISO_MSGS_SEV_FATAL;
return ret;
}
int iso_sev_to_text(int severity_number, char **severity_name)
{
int ret;
ret = libiso_msgs__sev_to_text(severity_number, severity_name, 0);
return ret;
}
/**
* Return the messenger object handle used by libisofs. This handle
* may be used by related libraries to their own compatible
* messenger objects and thus to direct their messages to the libisofs
* message queue. See also: libburn, API function burn_set_messenger().
*
* @return the handle. Do only use with compatible
*/
void *iso_get_messenger()
{
return libiso_msgr;
}
int iso_error_get_severity(int e)
{
return ISO_ERR_SEV(e);
}
int iso_error_get_priority(int e)
{
return ISO_ERR_PRIO(e);
}
int iso_error_get_code(int e)
{
return ISO_ERR_CODE(e);
}
int iso_report_errfile(char *path, int error_code, int os_errno, int flag)
{
libiso_msgs_submit(libiso_msgr, 0, error_code,
LIBISO_MSGS_SEV_ERRFILE, LIBISO_MSGS_PRIO_HIGH,
path, os_errno, 0);
return(1);
}
int iso_libjte_forward_msgs(void *libjte_handle,
int imgid, int errcode, int flag)
{
#ifdef Libisofs_with_libjtE
char *msg = NULL;
int res;
struct libjte_env *handle = (struct libjte_env *) libjte_handle;
res = ISO_SUCCESS;
while(1) {
msg= libjte_get_next_message(handle);
if(msg == NULL)
break;
res = iso_msg_submit(imgid, errcode, 0, msg);
free(msg);
}
return res;
#else /* Libisofs_with_libjtE */
return ISO_SUCCESS;
#endif /* ! Libisofs_with_libjtE */
}
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