65 lines
2.8 KiB
Text
65 lines
2.8 KiB
Text
Fix hpmount of newer HFS+ volumes: set vol->maxblocks when volume is
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without HFS wrapper, so we can find the backup volume header.
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Other changes unbreak the build.
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Index: libhfsp/src/volume.c
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--- libhfsp/src/volume.c.orig
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+++ libhfsp/src/volume.c
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@@ -323,7 +323,8 @@ void* volume_writefork(void *p, hfsp_fork_raw* f)
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*/
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static int volume_readbuf(hfsp_vh* vh, void* p)
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{
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- if ( (vh->signature = bswabU16_inc(p)) != HFSP_VOLHEAD_SIG)
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+ vh->signature = bswabU16_inc(p);
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+ if (vh->signature != HFSP_VOLHEAD_SIG)
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HFSP_ERROR(-1, "This is not a HFS+ volume");
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vh->version = bswabU16_inc(p);
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vh->attributes = bswabU32_inc(p);
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@@ -345,7 +346,7 @@ static int volume_readbuf(hfsp_vh* vh, void* p)
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vh->write_count = bswabU32_inc(p);
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vh->encodings_bmp = bswabU64_inc(p);
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memcpy(vh->finder_info, p, 32);
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- ((char*) p) += 32; // finderinfo is not used by now
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+ p = (((char *)p) + 32); // finderinfo is not used by now
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p = volume_readfork(p, &vh->alloc_file );
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p = volume_readfork(p, &vh->ext_file );
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p = volume_readfork(p, &vh->cat_file );
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@@ -381,7 +382,7 @@ static int volume_writebuf(hfsp_vh* vh, void* p)
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bstoreU32_inc(p, vh->write_count );
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bstoreU64_inc(p, vh->encodings_bmp );
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memcpy(p, vh->finder_info, 32);
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- ((char*) p) += 32; // finderinfo is not used by now
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+ p = (((char *)p) + 32); // finderinfo is not used by now
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p = volume_writefork(p, &vh->alloc_file );
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p = volume_writefork(p, &vh->ext_file );
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p = volume_writefork(p, &vh->cat_file );
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@@ -417,12 +418,12 @@ static int volume_read_wrapper(volume * vol, hfsp_vh*
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UInt16 embeds, embedl; /* Start/lenght of embedded area in blocks */
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- ((char*) p) += 0x12; /* skip unneeded HFS vol fields */
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+ p = (((char *)p) + 0x12); /* skip unneeded HFS vol fields */
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drAlBlkSiz = bswabU32_inc(p); /* offset 0x14 */
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- ((char*) p) += 0x4; /* skip unneeded HFS vol fields */
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+ p = (((char *)p) + 0x4); /* skip unneeded HFS vol fields */
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drAlBlSt = bswabU16_inc(p); /* offset 0x1C */
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- ((char*) p) += 0x5E; /* skip unneeded HFS vol fields */
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+ p = (((char *)p) + 0x5E); /* skip unneeded HFS vol fields */
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signature = bswabU16_inc(p); /* offset 0x7C, drEmbedSigWord */
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if (signature != HFSP_VOLHEAD_SIG)
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HFSP_ERROR(-1, "This looks like a normal HFS volume");
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@@ -439,7 +440,11 @@ static int volume_read_wrapper(volume * vol, hfsp_vh*
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else if (signature == HFSP_VOLHEAD_SIG) /* Native HFS+ volume */
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{
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p = buf; // Restore to begin of block
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- return volume_readbuf(vh, p);
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+ if (volume_readbuf(vh, p))
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+ return -1;
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+ // Need maxblocks in sectors
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+ vol->maxblocks = vh->total_blocks * (vh->blocksize / HFSP_BLOCKSZ);
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+ return 0;
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} else
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HFSP_ERROR(-1, "Neither Wrapper nor native HFS+ volume header found");
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