f796937a06
This change allows callers to use a 0-byte buffer and a NULL buffer pointer with vsnprintf, so it can be used to determine how large the resulting formatted string will be. Previously the code effectively treated a size of 0 as a size of 4G (on 32-bit systems), with other checks preventing it from actually trying to emit the string - but the terminal \0 would still be written, which would crash if the buffer is NULL. This change changes the boundary check so that 'end' points to the putative location of the terminal '\0', which is only written if size > 0. vsnprintf still allows the buffer size to be set very large, to allow unbounded buffer sizes (to implement sprintf, etc). [akpm@osdl.org: fix long-vs-longlong confusion] Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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| .. | ||
| reed_solomon | ||
| zlib_deflate | ||
| zlib_inflate | ||
| .gitignore | ||
| bitmap.c | ||
| bust_spinlocks.c | ||
| cmdline.c | ||
| cpumask.c | ||
| crc16.c | ||
| crc32.c | ||
| crc32defs.h | ||
| crc-ccitt.c | ||
| ctype.c | ||
| dec_and_lock.c | ||
| div64.c | ||
| dump_stack.c | ||
| errno.c | ||
| extable.c | ||
| find_next_bit.c | ||
| gen_crc32table.c | ||
| genalloc.c | ||
| halfmd4.c | ||
| hweight.c | ||
| idr.c | ||
| inflate.c | ||
| int_sqrt.c | ||
| iomap_copy.c | ||
| iomap.c | ||
| Kconfig | ||
| Kconfig.debug | ||
| kernel_lock.c | ||
| klist.c | ||
| kobject_uevent.c | ||
| kobject.c | ||
| kref.c | ||
| libcrc32c.c | ||
| Makefile | ||
| parser.c | ||
| percpu_counter.c | ||
| prio_tree.c | ||
| radix-tree.c | ||
| rbtree.c | ||
| rwsem-spinlock.c | ||
| rwsem.c | ||
| semaphore-sleepers.c | ||
| sha1.c | ||
| smp_processor_id.c | ||
| sort.c | ||
| spinlock_debug.c | ||
| string.c | ||
| swiotlb.c | ||
| textsearch.c | ||
| ts_bm.c | ||
| ts_fsm.c | ||
| ts_kmp.c | ||
| vsprintf.c | ||