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* ext2fs/inode.c: Replace `bcopy' with `memcpy' or `memmove' as
appropriate.
* ext2fs/pager.c: Likewise.
* isofs/lookup.c: Likewise.
* isofs/main.c: Likewise.
* isofs/rr.c: Likewise.
* libdiskfs/file-get-trans.c: Likewise.
* libiohelp/return-buffer.c: Likewise.
* libpager/pagemap.c: Likewise.
* libpipe/pq.c: Likewise.
* libpipe/pq.h: Likewise.
* libstore/unzipstore.c: Likewise.
* mach-defpager/default_pager.c: Likewise.
* pfinet/ethernet.c: Likewise.
* pfinet/tunnel.c: Likewise.
* storeio/dev.c: Likewise.
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* libpipe/pq.h (packet_peek): Declare new function.
* libpipe/pq.c (packet_read): Move code to new `packet_fetch' function, call it
with `remove' set to 1.
(packet_fetch): New function with code from `packet_read', but do not remove
data if `remove' is 0.
(packet_peek): New function, calls `packet_fetch' with `remove' set to 0.
* libpipe/dgram.c (dgram_read): When MSG_PEEK is in *flags, do not dequeue
and only peek data.
* libpipe/seqpack.c (seqpack_read): Likewise.
* libpipe/stream.c (stream_read): Likewise.
* pflocal/socket.c (S_socket_recv): Pass MSG_PEEK flag to libpipe.
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* pq.c (packet_write): Only dereference AMOUNT if it is not the null
pointer and document the change.
* pq.h (packet_write): Document the change.
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* pq.c (packet_set_ports): Correctly replace old ports buffer with
new one. Take size of mach_port_t rather than pointer to it.
(packet_read_ports): Take size of mach_port_t rather than pointer
to it.
(pq_queue): Update PACKET->num_ports, PACKET->buf_start and
PACKET->buf_end for reused packets as well.
Submitted by Ognyan Kulev <ogi@fmi.uni-sofia.bg>.
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* pq.c (packet_realloc): Use mmap instead of vm_allocate.
(packet_read_ports): Likewise.
(packet_read): Likewise.
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* pq.c: Add #include <sys/mman.h> for munmap decl.
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* pq.c (free_packets): Use munmap instead of vm_deallocate.
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vm_alloced buffer, deallocate it.
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removed any empty space at the beginning of BUF.
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(packet_new_size): New function.
(packet_read): Re-arrange to be slightly less confusing.
Reverse start-past-buf-beginning test that may have leaked memory.
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(packet_read): When a page-aligned read consumes the whole buffer, but there's
a non-page-multiple amount available, don't let buf_len go negative.
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but doesn't a page-multiple amount of data and we're reading everything.
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