Introduced burn_offst_source_new() flag bit0 which bans size changes
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@ -779,7 +779,7 @@ static off_t offst_get_size(struct burn_source *source)
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if ((fs = offst_auth(source, 0)) == NULL)
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return (off_t) 0;
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return fs->size;
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return fs->nominal_size;
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}
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static int offst_set_size(struct burn_source *source, off_t size)
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@ -788,7 +788,10 @@ static int offst_set_size(struct burn_source *source, off_t size)
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if ((fs = offst_auth(source, 0)) == NULL)
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return 0;
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fs->size = size;
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fs->nominal_size = size;
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if (fs->size <= 0 || fs->size_adjustable)
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fs->size = size;
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return 1;
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}
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@ -907,6 +910,8 @@ struct burn_source *burn_offst_source_new(
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}
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fs->start = start;
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fs->size = size;
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fs->size_adjustable = !(flag & 1);
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fs->nominal_size = size;
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fs->running = 0;
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fs->pos = 0;
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inp->refcount++; /* make sure inp lives longer than src */
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@ -82,6 +82,10 @@ struct burn_source_offst {
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struct burn_source *prev;
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off_t start;
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off_t size;
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int size_adjustable;
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/* for set_size/get_size */
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int nominal_size;
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/* To help offst_free() */
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struct burn_source *next;
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