Mercurial > hg > nginx
view src/os/unix/ngx_sunpro_amd64.il @ 7120:874171c3c71a
Fixed handling of non-null-terminated unix sockets.
At least FreeBSD, macOS, NetBSD, and OpenBSD can return unix sockets
with non-null-terminated sun_path. Additionally, the address may become
non-null-terminated if it does not fit into the buffer provided and was
truncated (may happen on macOS, NetBSD, and Solaris, which allow unix socket
addresess larger than struct sockaddr_un). As such, ngx_sock_ntop() might
overread the sockaddr provided, as it used "%s" format and thus assumed
null-terminated string.
To fix this, the ngx_strnlen() function was introduced, and it is now used
to calculate correct length of sun_path.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 04 Oct 2017 21:19:38 +0300 |
parents | 2cd019520210 |
children |
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/ / Copyright (C) Igor Sysoev / Copyright (C) Nginx, Inc. / / ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock, / ngx_atomic_uint_t old, ngx_atomic_uint_t set); / / the arguments are passed in %rdi, %rsi, %rdx / the result is returned in the %rax .inline ngx_atomic_cmp_set,0 movq %rsi, %rax lock cmpxchgq %rdx, (%rdi) setz %al movzbq %al, %rax .end / ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value, / ngx_atomic_int_t add); / / the arguments are passed in %rdi, %rsi / the result is returned in the %rax .inline ngx_atomic_fetch_add,0 movq %rsi, %rax lock xaddq %rax, (%rdi) .end / ngx_cpu_pause() / / the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware / capability added by linker because Solaris/amd64 does not know about it: / / ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ] .inline ngx_cpu_pause,0 rep; nop .end