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Provisory implementation of MIPS big endian Volume Header production.

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For now it is mutually exclusive with El Torito production.
It will always be mutually exclusive with MBR production.
This commit is contained in:
Thomas Schmitt
2010-10-12 12:20:27 +02:00
parent f12df92600
commit b07d3ab0c3
6 changed files with 155 additions and 10 deletions
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21
libisofs/ecma119.c
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@@ -1567,6 +1567,8 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *opts, Ecma119Image **img)
} else if (src->system_area_data != NULL) {
system_area = src->system_area_data;
system_area_options = src->system_area_options;
} else {
system_area_options = opts->system_area_options & 0xfc;
}
target->system_area_data = NULL;
if (system_area != NULL) {
@@ -2614,9 +2616,24 @@ int iso_write_opts_get_data_start(IsoWriteOpts *opts, uint32_t *data_start,
/*
* @param data Either NULL or 32 kB of data. Do not submit less bytes !
* @param options bit0 = apply GRUB protective msdos label
* @param options
* Can cause manipulations of submitted data before they get written:
* bit0= apply a --protective-msdos-label as of grub-mkisofs.
* This means to patch bytes 446 to 512 of the system area so
* that one partition is defined which begins at the second
* 512-byte block of the image and ends where the image ends.
* This works with and without system_area_data.
* bit1= apply isohybrid MBR patching to the system area.
* This works only with system area data from SYSLINUX plus an
* ISOLINUX boot image (see iso_image_set_boot_image()) and
* only if not bit0 is set.
* bit2-7= System area type
* 0= PC-BIOS DOS MBR
* 1= MIPS Big Endian Volume Header
* @param flag bit0 = invalidate any attached system area data
* same as data == NULL
* bit1 = keep data unaltered
* bit2 = keep options unaltered
*/
int iso_write_opts_set_system_area(IsoWriteOpts *opts, char data[32768],
int options, int flag)
@@ -2634,7 +2651,7 @@ int iso_write_opts_set_system_area(IsoWriteOpts *opts, char data[32768],
memcpy(opts->system_area_data, data, 32768);
}
if (!(flag & 4))
opts->system_area_options = options & 3;
opts->system_area_options = options & 0xff;
return ISO_SUCCESS;
}