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Adapted version checking to new library situation

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This commit is contained in:
Thomas Schmitt 2010-05-21 13:37:25 +00:00
parent d3f770827f
commit bcc6a38094
6 changed files with 219 additions and 78 deletions
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17
xorriso/base_obj.c
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@ -38,9 +38,22 @@
static int Xorriso_signal_behavioR= 1;
char *Xorriso__get_version_text(int flag)
void Xorriso__version(int *major, int *minor, int *micro)
{
return(Xorriso_program_versioN);
*major= Xorriso_header_version_majoR;
*minor= Xorriso_header_version_minoR;
*micro= Xorriso_header_version_micrO;
}
int Xorriso__is_compatible(int major, int minor, int micro, int flag)
{
int own_major, own_minor, own_micro;
Xorriso__version(&own_major, &own_minor, &own_micro);
return(own_major > major ||
(own_major == major && (own_minor > minor ||
(own_minor == minor && own_micro >= micro))));
}

15
xorriso/opts_p_z.c
View File

@ -1513,13 +1513,14 @@ int Xorriso_option_use_readline(struct XorrisO *xorriso, char *mode, int flag)
/* Option -version */
int Xorriso_option_version(struct XorrisO *xorriso, int flag)
{
sprintf(xorriso->result_line, "%sxorriso %d.%d.%d%s\n",
#ifdef Xorriso_GNU_xorrisO
sprintf(xorriso->result_line, "GNU xorriso %s%s\n",
Xorriso_program_versioN, Xorriso_program_patch_leveL);
"GNU ",
#else
sprintf(xorriso->result_line, "xorriso %s%s\n",
Xorriso_program_versioN, Xorriso_program_patch_leveL);
"",
#endif /* ! Xorriso_GNU_xorrisO */
Xorriso_header_version_majoR, Xorriso_header_version_minoR,
Xorriso_header_version_micrO, Xorriso_program_patch_leveL);
Xorriso_result(xorriso, 0);
sprintf(xorriso->result_line,
"ISO 9660 Rock Ridge filesystem manipulator and CD/DVD/BD burn program\n");
@ -1527,8 +1528,10 @@ int Xorriso_option_version(struct XorrisO *xorriso, int flag)
"Copyright (C) 2010, Thomas Schmitt <scdbackup@gmx.net>, libburnia project.\n");
Xorriso_result(xorriso, 0);
sprintf(xorriso->result_line,
"xorriso version : %s%s\n",
Xorriso_program_versioN, Xorriso_program_patch_leveL);
"xorriso version : %d.%d.%d%s\n",
Xorriso_header_version_majoR, Xorriso_header_version_minoR,
Xorriso_header_version_micrO, Xorriso_program_patch_leveL);
Xorriso_result(xorriso, 0);
sprintf(xorriso->result_line+strlen(xorriso->result_line),
"Version timestamp : %s\n",Xorriso_timestamP);
sprintf(xorriso->result_line+strlen(xorriso->result_line),

8
xorriso/write_run.c
View File

@ -679,10 +679,10 @@ int Xorriso_write_session(struct XorrisO *xorriso, int flag)
isoburn_igopt_set_scdbackup_tag(sopts, xorriso->scdbackup_tag_name,
xorriso->scdbackup_tag_time,
xorriso->scdbackup_tag_written);
if(image!=NULL &&
strlen(Xorriso_program_versioN)+strlen(Xorriso_timestamP)<80) {
sprintf(xorriso_id, "XORRISO-%s %s",
Xorriso_program_versioN, Xorriso_timestamP);
if(image!=NULL && 12+strlen(Xorriso_timestamP)<80) {
sprintf(xorriso_id, "XORRISO-%d.%d.%d %s",
Xorriso_header_version_majoR, Xorriso_header_version_minoR,
Xorriso_header_version_micrO, Xorriso_timestamP);
isoburn_version(&major, &minor, &micro);
if(strlen(xorriso_id)<80)
sprintf(xorriso_id+strlen(xorriso_id),

97
xorriso/xorriso.h
View File

@ -1,12 +1,29 @@
/* Command line oriented batch and dialog tool which creates, loads,
manipulates and burns ISO 9660 filesystem images.
/* xorriso - libisoburn higher level API which creates, loads, manipulates
and burns ISO 9660 filesystem images.
Copyright 2007-2010 Thomas Schmitt, <scdbackup@gmx.net>
Provided under GPL version 2 or later.
This file contains the public option interface of xorriso.
This file contains the public API of xorriso which covers all of its
operations.
An example of its usage is xorriso_main.c which checks version compatibility,
creates a xorriso object, initializes the libraries, and runs the command
interpreters of the API to constitute the command line oriented batch and
dialog tool xorriso.
Alternatively to command interpreters it is possible to run all options of
xorriso directly via the calls of the "Options API".
The "Problem Status and Message API" shall then be used to obtain the
text output of the options.
Mandatory calls are:
Xorriso_new(), Xorriso_startup_libraries(), Xorriso_destroy()
There is a lower level of API which consists of libisofs.h, libburn.h and
libisoburn.h. One should not mix those calls with the ones of xorriso.h .
*/
#ifndef Xorriso_includeD
@ -16,9 +33,6 @@
struct XorrisO;
#define Xorriso_program_versioN "0.5.7"
#define Xorriso_program_patch_leveL ""
/* This may be changed to Xorriso_GNU_xorrisO in order to create GNU xorriso
under GPLv3+ derived from above GPLv2+.
@ -29,13 +43,71 @@ struct XorrisO;
/* --------------------- Fundamental Management ------------------- */
/* Get the version text (e.g. "0.4.2") of the program code.
This may differ from Xorriso_program_versioN if xorriso is dynamically
linked to an application.
@param flag unused yet, submit 0
@return readonly character string
/** These three release version numbers tell the revision of this header file
and of the API which it describes. They shall be memorized by applications
at build time.
@since 0.5.8
*/
char *Xorriso__get_version_text(int flag);
#define Xorriso_header_version_majoR 0
#define Xorriso_header_version_minoR 5
#define Xorriso_header_version_micrO 7
/** Eventually something like ".pl01" to indicate a bug fix. Normally empty.
@since 0.5.8
*/
#define Xorriso_program_patch_leveL ""
/** Obtain the three release version numbers of the library. These are the
numbers encountered by the application when linking with libisoburn,
i.e. possibly not before run time.
Better do not base the fundamental compatibility decision of an application
on these numbers. For a reliable check use Xorriso__is_compatible().
@since 0.5.8
@param major The maturity version (0 for now, as we are still learning)
@param minor The development goal version.
@param micro The development step version. This has an additional meaning:
Pare numbers indicate a version with frozen API. I.e. you can
rely on the same set of features to be present in all
published releases with that major.minor.micro combination.
Features of a pare release will stay available and ABI
compatible as long as the SONAME of libisoburn stays "1".
Currently there are no plans to ever change the SONAME.
Odd numbers indicate that API upgrades are in progress.
I.e. new features might be already present or they might
be still missing. Newly introduced features may be changed
incompatibly or even be revoked before release of a pare
version.
So micro revisions {1,3,5,7,9} should never be used for
dynamic linking unless the proper library match can be
guaranteed by external circumstances.
@return 1 success, <=0 might in future become an error indication
*/
void Xorriso__version(int *major, int *minor, int *micro);
/** Check whether all features of header file xorriso.h from the given
major.minor.micro revision triple can be delivered by the library version
which is performing this call.
if (! Xorriso__is_compatible(Xorriso_header_version_majoR,
Xorriso_header_version_minoR,
Xorriso_header_version_micrO, 0))
...refuse to start the program with this dynamic library version...
@since 0.5.8
@param major obtained at build time
@param minor obtained at build time
@param micro obtained at build time
@param flag Bitfield for control purposes. Unused yet. Submit 0.
@return 1= library can work for caller
0= library is not usable in some aspects. Caller must restrict
itself to an earlier API version or must not use this libray
at all.
*/
int Xorriso__is_compatible(int major, int minor, int micro, int flag);
/* Get the patch level text (e.g. "" or ".pl01") of the program code.
@ -430,6 +502,7 @@ struct Xorriso_lsT *Xorriso_lst_get_prev(struct Xorriso_lsT *entry, int flag);
/** Destroy all list items which are directly or indirectly connected to
the given link item.
All pointers obtained by Xorriso_lst_get_text() become invalid by this.
Apply this to each of the two list handles obtained by
Xorriso_pull_outlists() when the lists are no longer needed.
@param lstring *lstring will be freed and set to NULL.

158
xorriso/xorriso_main.c
View File

@ -1,11 +1,5 @@
/*
( cd .. ; libisoburn-develop/xorriso/compile_xorriso.sh -g )
*/
/* Command line oriented batch and dialog tool which creates, loads,
/* xorriso - Command line oriented batch and dialog tool which creates, loads,
manipulates and burns ISO 9660 filesystem images.
Copyright 2007-2010 Thomas Schmitt, <scdbackup@gmx.net>
@ -30,19 +24,27 @@
libisofs interprets and manipulates ISO 9660 directory trees. It generates
the output stream which is handed over to libburn.
libisoburn encapsulates the connectivity issues between libburn and
libisofs. It also enables multi-session emulation on overwritable media
and random access file objects.
xorriso is intended as reference application of libisoburn.
libisoburn by its lower level API encapsulates the connectivity issues
between libburn and libisofs. This API also enables multi-session emulation
on overwritable media and random access file objects.
xorriso.h exposes the public functions of xorriso which are intended
to be used by programs which link with xorriso.o. These functions are
direct equivalents of the xorriso interpreter commands.
There is also the API for handling event messages.
xorriso is the higher level API of libisoburn which allows to operate all
three libraries by a unified set of commands.
xorriso.h exposes the public functions.
Among these functions are direct equivalents of the xorriso interpreter
commands. There are also functions for fundamental management and for
handling event messages.
The source is divided in two groups:
This file xorriso_main.c runs the xorriso API as batch and dialog program.
One should not mix the use of the xorriso API with the use of the lower
level APIs of libburn, libisofs, libisoburn.
The xorriso source is divided in two groups:
A set of source modules interacts with the libraries:
base_obj.[ch] fundamental operations of the XorrisO object
lib_mgt.[ch] manages the relation between xorriso and the libraries
drive_mgt.[ch] operates on drives and media
@ -56,6 +58,7 @@
xorrisoburn.h declarations needed by the non-library modules
Another set is independent of the liburnia libraries:
parse_exec.c deals with parsing and interpretation of command input
sfile.c functions around files and strings
aux_objects.c various helper classes
@ -73,8 +76,6 @@
opts_i_o.c options -i* to -o*
opts_p_z.c options -p* to -z*
xorriso_main.c the main program
xorriso_private.h contains the definition of struct Xorriso and for
convenience includes the .h files of the non-library group.
@ -99,31 +100,99 @@
#include "xorriso.h"
#ifdef Xorriso_standalonE
/* Make sure that both version tests always match. */
#define Xorriso_main_program_versioN Xorriso_program_versioN
#else /* Xorriso_standalonE */
/* xorriso consists only of a main() stub which has an own version to match
the version of libxorriso header and runtime code.
/* The minimum version of libisoburn to be used with this version of xorriso
*/
#define Xorriso_main_program_versioN "0.5.7"
#endif /* ! Xorriso_without_subS */
#define Xorriso_req_majoR 0
#define Xorriso_req_minoR 5
#define Xorriso_req_micrO 7
static void yell_xorriso()
{
fprintf(stderr,
"%sxorriso %s%s : RockRidge filesystem manipulator, libburnia project.\n\n",
"%sxorriso %d.%d.%d%s : RockRidge filesystem manipulator, libburnia project.\n\n",
#ifdef Xorriso_GNU_xorrisO
"GNU ",
#else
"",
#endif
Xorriso_main_program_versioN, Xorriso_program_patch_leveL);
Xorriso_header_version_majoR, Xorriso_header_version_minoR,
Xorriso_header_version_micrO, Xorriso_program_patch_leveL);
}
/* Check whether build configuration and runtime linking are consistent.
*/
static void check_compatibility()
{
int lib_major, lib_minor, lib_micro;
/* First an ugly compile time check for header version compatibility.
If everthing matches, then no C code is produced. In case of mismatch,
intentionally faulty C code will be inserted.
*/
/* The minimum requirement of xorriso towards the libisoburn header
at compile time is defined above
Xorriso_req_majoR
Xorriso_req_minoR
Xorriso_req_micrO
It gets compared against the version macros in xorriso.h :
Xorriso_header_version_majoR
Xorriso_header_version_minoR
Xorriso_header_version_micrO
If the header is too old then the following code shall cause failure of
cdrskin compilation rather than to allow production of a program with
unpredictable bugs or memory corruption.
The compiler messages supposed to appear in this case are:
error: 'XORRISO_MISCONFIGURATION' undeclared (first use in this function)
error: 'INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_xorriso_dot_h_TOO_OLD__SEE_xorriso_main_dot_c' undeclared (first use in this function)
error: 'XORRISO_MISCONFIGURATION_' undeclared (first use in this function)
*/
/* The indendation is an advise of man gcc to help old compilers ignoring */
#if Xorriso_req_majoR > Xorriso_header_version_majoR
#define Xorriso_dot_h_too_olD 1
#endif
#if Xorriso_req_majoR == Xorriso_header_version_majoR && Xorriso_req_minoR > Xorriso_header_version_minoR
#define Xorriso_dot_h_too_olD 1
#endif
#if Xorriso_req_minoR == Xorriso_header_version_minoR && Xorriso_req_micrO > Xorriso_header_version_micrO
#define Xorriso_dot_h_too_olD 1
#endif
#ifdef Xorriso_dot_h_too_olD
XORRISO_MISCONFIGURATION = 0;
INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_xorriso_dot_h_TOO_OLD__SEE_xorriso_main_dot_c = 0;
XORRISO_MISCONFIGURATION_ = 0;
#endif
/* End of ugly compile time test (scroll up for explanation) */
/* Needed are at least 44 bits in signed type off_t .
This is a popular mistake in configuration or compilation.
*/
if(sizeof(off_t) < 6) {
yell_xorriso();
fprintf(stderr,
"xorriso : FATAL : Compile time misconfiguration. sizeof(off_t) too small.\n\n");
exit(4);
}
/* Check whether the linked xorriso code is young enough.
*/
if(! Xorriso__is_compatible(Xorriso_header_version_majoR,
Xorriso_header_version_minoR,
Xorriso_header_version_micrO, 0)) {
yell_xorriso();
Xorriso__version(&lib_major, &lib_minor, &lib_micro);
fprintf(stderr,
"xorriso : FATAL : libisoburn/xorriso runtime version mismatch. Found %d.%d.%d, need %d.%d.%d\n\n",
lib_major, lib_minor, lib_micro,
Xorriso_header_version_majoR, Xorriso_header_version_minoR,
Xorriso_header_version_micrO);
exit(4);
}
}
@ -133,26 +202,7 @@ int main(int argc, char **argv)
struct XorrisO *xorriso= NULL;
char **orig_argv= NULL;
if(sizeof(off_t) < 8) {
yell_xorriso();
fprintf(stderr,
"xorriso : FATAL : Compile time misconfiguration. sizeof(off_t) too small.\n\n");
exit(4);
}
if(strcmp(Xorriso_main_program_versioN, Xorriso_program_versioN)) {
yell_xorriso();
fprintf(stderr,
"xorriso : FATAL : libxorriso compile time version mismatch. Found %s\n\n",
Xorriso_program_versioN);
exit(4);
}
if(strcmp(Xorriso_program_versioN, Xorriso__get_version_text(0))) {
yell_xorriso();
fprintf(stderr,
"xorriso : FATAL : libxorriso runtime version mismatch. Found %s\n\n",
Xorriso__get_version_text(0));
exit(4);
}
check_compatibility(); /* might exit() */
if(argc < 2) {
yell_xorriso();
@ -178,7 +228,9 @@ int main(int argc, char **argv)
yell_xorriso();
/* The following functions are allowed only after this initialization */
/* The following command interpreters are allowed only after this
initialization.
*/
ret= Xorriso_startup_libraries(xorriso, 0);
if(ret <= 0)
{ret= 4; goto emergency_exit;}

2
xorriso/xorriso_timestamp.h
View File

@ -1 +1 @@
#define Xorriso_timestamP "2010.05.21.132937"
#define Xorriso_timestamP "2010.05.21.133627"