Mercurial > hg > nginx-quic
view auto/unix @ 8460:3974f4e56a4e
Mail: fixed s->arg_start clearing on invalid IMAP commands.
Previously, s->arg_start was left intact after invalid IMAP commands,
and this might result in an argument incorrectly added to the following
command. Similarly, s->backslash was left intact as well, leading
to unneeded backslash removal.
For example (LFs from the client are explicitly shown as "<LF>"):
S: * OK IMAP4 ready
C: a01 login "\<LF>
S: a01 BAD invalid command
C: a0000000000\2 authenticate <LF>
S: a00000000002 aBAD invalid command
The backslash followed by LF generates invalid command with s->arg_start
and s->backslash set, the following command incorrectly treats anything
from the old s->arg_start to the space after the command as an argument,
and removes the backslash from the tag. If there is no space, s->arg_end
will be NULL.
Both things seem to be harmless though. In particular:
- This can be used to provide an incorrect argument to a command without
arguments. The only command which seems to look at the single argument
is AUTHENTICATE, and it checks the argument length before trying to
access it.
- Backslash removal uses the "end" pointer, and stops due to "src < end"
condition instead of scanning all the process memory if s->arg_end is
NULL (and arg[0].len is huge).
- There should be no backslashes in unquoted strings.
An obvious fix is to clear s->arg_start and s->backslash on invalid commands,
similarly to how it is done in POP3 parsing (added in 810:e3aa8f305d21) and
SMTP parsing.
This, however, makes it clear that s->arg_start handling in the "done"
label is wrong: s->arg_start cannot be legitimately set there, as it
is expected to be cleared in all possible cases when the "done" label is
reached. The relevant code is dead and will be removed by the following
change.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 19 May 2021 03:13:20 +0300 |
parents | e2e9e0fae747 |
children | afebde21cb32 |
line wrap: on
line source
# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. NGX_USER=${NGX_USER:-nobody} if [ -z "$NGX_GROUP" ]; then if [ $NGX_USER = nobody ]; then if grep nobody /etc/group 2>&1 >/dev/null; then echo "checking for nobody group ... found" NGX_GROUP=nobody else echo "checking for nobody group ... not found" if grep nogroup /etc/group 2>&1 >/dev/null; then echo "checking for nogroup group ... found" NGX_GROUP=nogroup else echo "checking for nogroup group ... not found" NGX_GROUP=nobody fi fi else NGX_GROUP=$NGX_USER fi fi ngx_feature="poll()" ngx_feature_name= ngx_feature_run=no ngx_feature_incs="#include <poll.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="int n; struct pollfd pl; pl.fd = 0; pl.events = 0; pl.revents = 0; n = poll(&pl, 1, 0); if (n == -1) return 1" . auto/feature if [ $ngx_found = no ]; then EVENT_POLL=NONE fi ngx_feature="/dev/poll" ngx_feature_name="NGX_HAVE_DEVPOLL" ngx_feature_run=no ngx_feature_incs="#include <sys/devpoll.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="int n, dp; struct dvpoll dvp; dp = 0; dvp.dp_fds = NULL; dvp.dp_nfds = 0; dvp.dp_timeout = 0; n = ioctl(dp, DP_POLL, &dvp); if (n == -1) return 1" . auto/feature if [ $ngx_found = yes ]; then CORE_SRCS="$CORE_SRCS $DEVPOLL_SRCS" EVENT_MODULES="$EVENT_MODULES $DEVPOLL_MODULE" EVENT_FOUND=YES fi if test -z "$NGX_KQUEUE_CHECKED"; then ngx_feature="kqueue" ngx_feature_name="NGX_HAVE_KQUEUE" ngx_feature_run=no ngx_feature_incs="#include <sys/event.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="(void) kqueue()" . auto/feature if [ $ngx_found = yes ]; then have=NGX_HAVE_CLEAR_EVENT . auto/have EVENT_MODULES="$EVENT_MODULES $KQUEUE_MODULE" CORE_SRCS="$CORE_SRCS $KQUEUE_SRCS" EVENT_FOUND=YES ngx_feature="kqueue's NOTE_LOWAT" ngx_feature_name="NGX_HAVE_LOWAT_EVENT" ngx_feature_run=no ngx_feature_incs="#include <sys/event.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct kevent kev; kev.fflags = NOTE_LOWAT; (void) kev" . auto/feature ngx_feature="kqueue's EVFILT_TIMER" ngx_feature_name="NGX_HAVE_TIMER_EVENT" ngx_feature_run=yes ngx_feature_incs="#include <sys/event.h> #include <sys/time.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="int kq; struct kevent kev; struct timespec ts; if ((kq = kqueue()) == -1) return 1; kev.ident = 0; kev.filter = EVFILT_TIMER; kev.flags = EV_ADD|EV_ENABLE; kev.fflags = 0; kev.data = 1000; kev.udata = 0; ts.tv_sec = 0; ts.tv_nsec = 0; if (kevent(kq, &kev, 1, &kev, 1, &ts) == -1) return 1; if (kev.flags & EV_ERROR) return 1;" . auto/feature fi fi if [ "$NGX_SYSTEM" = "NetBSD" ]; then # NetBSD 2.0 incompatibly defines kevent.udata as "intptr_t" cat << END >> $NGX_AUTO_CONFIG_H #define NGX_KQUEUE_UDATA_T END else cat << END >> $NGX_AUTO_CONFIG_H #define NGX_KQUEUE_UDATA_T (void *) END fi ngx_feature="crypt()" ngx_feature_name= ngx_feature_run=no ngx_feature_incs= ngx_feature_path= ngx_feature_libs= ngx_feature_test="crypt(\"test\", \"salt\");" . auto/feature if [ $ngx_found = no ]; then ngx_feature="crypt() in libcrypt" ngx_feature_name= ngx_feature_run=no ngx_feature_incs= ngx_feature_path= ngx_feature_libs=-lcrypt . auto/feature if [ $ngx_found = yes ]; then CRYPT_LIB="-lcrypt" fi fi ngx_feature="F_READAHEAD" ngx_feature_name="NGX_HAVE_F_READAHEAD" ngx_feature_run=no ngx_feature_incs="#include <fcntl.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="fcntl(0, F_READAHEAD, 1);" . auto/feature ngx_feature="posix_fadvise()" ngx_feature_name="NGX_HAVE_POSIX_FADVISE" ngx_feature_run=no ngx_feature_incs="#include <fcntl.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="posix_fadvise(0, 0, 0, POSIX_FADV_SEQUENTIAL);" . auto/feature ngx_feature="O_DIRECT" ngx_feature_name="NGX_HAVE_O_DIRECT" ngx_feature_run=no ngx_feature_incs="#include <fcntl.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="fcntl(0, F_SETFL, O_DIRECT);" . auto/feature if [ $ngx_found = yes -a "$NGX_SYSTEM" = "Linux" ]; then have=NGX_HAVE_ALIGNED_DIRECTIO . auto/have fi ngx_feature="F_NOCACHE" ngx_feature_name="NGX_HAVE_F_NOCACHE" ngx_feature_run=no ngx_feature_incs="#include <fcntl.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="fcntl(0, F_NOCACHE, 1);" . auto/feature ngx_feature="directio()" ngx_feature_name="NGX_HAVE_DIRECTIO" ngx_feature_run=no ngx_feature_incs="#include <sys/types.h> #include <sys/fcntl.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="directio(0, DIRECTIO_ON);" . auto/feature ngx_feature="statfs()" ngx_feature_name="NGX_HAVE_STATFS" ngx_feature_run=no ngx_feature_incs="$NGX_INCLUDE_SYS_PARAM_H $NGX_INCLUDE_SYS_MOUNT_H $NGX_INCLUDE_SYS_VFS_H" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct statfs fs; statfs(\".\", &fs);" . auto/feature ngx_feature="statvfs()" ngx_feature_name="NGX_HAVE_STATVFS" ngx_feature_run=no ngx_feature_incs="#include <sys/types.h> #include <sys/statvfs.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct statvfs fs; statvfs(\".\", &fs);" . auto/feature ngx_feature="dlopen()" ngx_feature_name="NGX_HAVE_DLOPEN" ngx_feature_run=no ngx_feature_incs="#include <dlfcn.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="dlopen(NULL, RTLD_NOW | RTLD_GLOBAL); dlsym(NULL, \"\")" . auto/feature if [ $ngx_found = no ]; then ngx_feature="dlopen() in libdl" ngx_feature_libs="-ldl" . auto/feature if [ $ngx_found = yes ]; then CORE_LIBS="$CORE_LIBS -ldl" NGX_LIBDL="-ldl" fi fi ngx_feature="sched_yield()" ngx_feature_name="NGX_HAVE_SCHED_YIELD" ngx_feature_run=no ngx_feature_incs="#include <sched.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="sched_yield()" . auto/feature if [ $ngx_found = no ]; then ngx_feature="sched_yield() in librt" ngx_feature_libs="-lrt" . auto/feature if [ $ngx_found = yes ]; then CORE_LIBS="$CORE_LIBS -lrt" fi fi ngx_feature="sched_setaffinity()" ngx_feature_name="NGX_HAVE_SCHED_SETAFFINITY" ngx_feature_run=no ngx_feature_incs="#include <sched.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="cpu_set_t mask; CPU_ZERO(&mask); sched_setaffinity(0, sizeof(cpu_set_t), &mask)" . auto/feature ngx_feature="SO_SETFIB" ngx_feature_name="NGX_HAVE_SETFIB" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_SETFIB, NULL, 0)" . auto/feature ngx_feature="SO_REUSEPORT" ngx_feature_name="NGX_HAVE_REUSEPORT" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_REUSEPORT, NULL, 0)" . auto/feature ngx_feature="SO_ACCEPTFILTER" ngx_feature_name="NGX_HAVE_DEFERRED_ACCEPT" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_ACCEPTFILTER, NULL, 0)" . auto/feature # OpenBSD bind to any address for transparent proxying ngx_feature="SO_BINDANY" ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, SOL_SOCKET, SO_BINDANY, NULL, 0)" . auto/feature # Linux transparent proxying ngx_feature="IP_TRANSPARENT" ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_TRANSPARENT, NULL, 0)" . auto/feature # FreeBSD bind to any address for transparent proxying ngx_feature="IP_BINDANY" ngx_feature_name="NGX_HAVE_TRANSPARENT_PROXY" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_BINDANY, NULL, 0)" . auto/feature # Linux IP_BIND_ADDRESS_NO_PORT ngx_feature="IP_BIND_ADDRESS_NO_PORT" ngx_feature_name="NGX_HAVE_IP_BIND_ADDRESS_NO_PORT" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_BIND_ADDRESS_NO_PORT, NULL, 0)" . auto/feature # BSD way to get IPv4 datagram destination address ngx_feature="IP_RECVDSTADDR" ngx_feature_name="NGX_HAVE_IP_RECVDSTADDR" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_RECVDSTADDR, NULL, 0)" . auto/feature # BSD way to set IPv4 datagram source address ngx_feature="IP_SENDSRCADDR" ngx_feature_name="NGX_HAVE_IP_SENDSRCADDR" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_IP, IP_SENDSRCADDR, NULL, 0)" . auto/feature # Linux way to get IPv4 datagram destination address ngx_feature="IP_PKTINFO" ngx_feature_name="NGX_HAVE_IP_PKTINFO" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct in_pktinfo pkt; pkt.ipi_spec_dst.s_addr = INADDR_ANY; (void) pkt; setsockopt(0, IPPROTO_IP, IP_PKTINFO, NULL, 0)" . auto/feature # RFC 3542 way to get IPv6 datagram destination address ngx_feature="IPV6_RECVPKTINFO" ngx_feature_name="NGX_HAVE_IPV6_RECVPKTINFO" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_IPV6, IPV6_RECVPKTINFO, NULL, 0)" . auto/feature ngx_feature="TCP_DEFER_ACCEPT" ngx_feature_name="NGX_HAVE_DEFERRED_ACCEPT" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_DEFER_ACCEPT, NULL, 0)" . auto/feature ngx_feature="TCP_KEEPIDLE" ngx_feature_name="NGX_HAVE_KEEPALIVE_TUNABLE" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_KEEPIDLE, NULL, 0); setsockopt(0, IPPROTO_TCP, TCP_KEEPINTVL, NULL, 0); setsockopt(0, IPPROTO_TCP, TCP_KEEPCNT, NULL, 0)" . auto/feature ngx_feature="TCP_FASTOPEN" ngx_feature_name="NGX_HAVE_TCP_FASTOPEN" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_FASTOPEN, NULL, 0)" . auto/feature ngx_feature="TCP_INFO" ngx_feature_name="NGX_HAVE_TCP_INFO" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="socklen_t optlen = sizeof(struct tcp_info); struct tcp_info ti; ti.tcpi_rtt = 0; ti.tcpi_rttvar = 0; ti.tcpi_snd_cwnd = 0; ti.tcpi_rcv_space = 0; getsockopt(0, IPPROTO_TCP, TCP_INFO, &ti, &optlen)" . auto/feature ngx_feature="accept4()" ngx_feature_name="NGX_HAVE_ACCEPT4" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="accept4(0, NULL, NULL, SOCK_NONBLOCK)" . auto/feature if [ $NGX_FILE_AIO = YES ]; then ngx_feature="kqueue AIO support" ngx_feature_name="NGX_HAVE_FILE_AIO" ngx_feature_run=no ngx_feature_incs="#include <aio.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct aiocb iocb; iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; (void) aio_read(&iocb)" . auto/feature if [ $ngx_found = yes ]; then CORE_SRCS="$CORE_SRCS $FILE_AIO_SRCS" fi if [ $ngx_found = no ]; then ngx_feature="Linux AIO support" ngx_feature_name="NGX_HAVE_FILE_AIO" ngx_feature_run=no ngx_feature_incs="#include <linux/aio_abi.h> #include <sys/eventfd.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct iocb iocb; iocb.aio_lio_opcode = IOCB_CMD_PREAD; iocb.aio_flags = IOCB_FLAG_RESFD; iocb.aio_resfd = -1; (void) iocb; (void) eventfd(0, 0)" . auto/feature if [ $ngx_found = yes ]; then have=NGX_HAVE_EVENTFD . auto/have have=NGX_HAVE_SYS_EVENTFD_H . auto/have CORE_SRCS="$CORE_SRCS $LINUX_AIO_SRCS" fi fi if [ $ngx_found = no ]; then ngx_feature="Linux AIO support (SYS_eventfd)" ngx_feature_incs="#include <linux/aio_abi.h> #include <sys/syscall.h>" ngx_feature_test="struct iocb iocb; iocb.aio_lio_opcode = IOCB_CMD_PREAD; iocb.aio_flags = IOCB_FLAG_RESFD; iocb.aio_resfd = -1; (void) iocb; (void) SYS_eventfd" . auto/feature if [ $ngx_found = yes ]; then have=NGX_HAVE_EVENTFD . auto/have CORE_SRCS="$CORE_SRCS $LINUX_AIO_SRCS" fi fi if [ $ngx_found = no ]; then cat << END $0: no supported file AIO was found Currently file AIO is supported on FreeBSD 4.3+ and Linux 2.6.22+ only END exit 1 fi fi have=NGX_HAVE_UNIX_DOMAIN . auto/have ngx_feature_libs= # C types ngx_type="int"; . auto/types/sizeof ngx_type="long"; . auto/types/sizeof ngx_type="long long"; . auto/types/sizeof ngx_type="void *"; . auto/types/sizeof; ngx_ptr_size=$ngx_size ngx_param=NGX_PTR_SIZE; ngx_value=$ngx_size; . auto/types/value # POSIX types NGX_INCLUDE_AUTO_CONFIG_H="#include \"ngx_auto_config.h\"" ngx_type="uint32_t"; ngx_types="u_int32_t"; . auto/types/typedef ngx_type="uint64_t"; ngx_types="u_int64_t"; . auto/types/typedef ngx_type="sig_atomic_t"; ngx_types="int"; . auto/types/typedef . auto/types/sizeof ngx_param=NGX_SIG_ATOMIC_T_SIZE; ngx_value=$ngx_size; . auto/types/value ngx_type="socklen_t"; ngx_types="int"; . auto/types/typedef ngx_type="in_addr_t"; ngx_types="uint32_t u_int32_t"; . auto/types/typedef ngx_type="in_port_t"; ngx_types="u_short"; . auto/types/typedef ngx_type="rlim_t"; ngx_types="int"; . auto/types/typedef . auto/types/uintptr_t . auto/endianness ngx_type="size_t"; . auto/types/sizeof ngx_param=NGX_MAX_SIZE_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value ngx_param=NGX_SIZE_T_LEN; ngx_value=$ngx_max_len; . auto/types/value ngx_type="off_t"; . auto/types/sizeof ngx_param=NGX_MAX_OFF_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value ngx_param=NGX_OFF_T_LEN; ngx_value=$ngx_max_len; . auto/types/value ngx_type="time_t"; . auto/types/sizeof ngx_param=NGX_TIME_T_SIZE; ngx_value=$ngx_size; . auto/types/value ngx_param=NGX_TIME_T_LEN; ngx_value=$ngx_max_len; . auto/types/value ngx_param=NGX_MAX_TIME_T_VALUE; ngx_value=$ngx_max_value; . auto/types/value # syscalls, libc calls and some features ngx_feature="AF_INET6" ngx_feature_name="NGX_HAVE_INET6" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct sockaddr_in6 sin6; sin6.sin6_family = AF_INET6; (void) sin6" . auto/feature ngx_feature="setproctitle()" ngx_feature_name="NGX_HAVE_SETPROCTITLE" ngx_feature_run=no ngx_feature_incs="#include <stdlib.h>" ngx_feature_path= ngx_feature_libs=$NGX_SETPROCTITLE_LIB ngx_feature_test="setproctitle(\"test\");" . auto/feature ngx_feature="pread()" ngx_feature_name="NGX_HAVE_PREAD" ngx_feature_run=no ngx_feature_incs= ngx_feature_path= ngx_feature_libs= ngx_feature_test="char buf[1]; ssize_t n; n = pread(0, buf, 1, 0); if (n == -1) return 1" . auto/feature ngx_feature="pwrite()" ngx_feature_name="NGX_HAVE_PWRITE" ngx_feature_run=no ngx_feature_incs= ngx_feature_path= ngx_feature_libs= ngx_feature_test="char buf[1]; ssize_t n; n = pwrite(1, buf, 1, 0); if (n == -1) return 1" . auto/feature # pwritev() was introduced in FreeBSD 6 and Linux 2.6.30, glibc 2.10 ngx_feature="pwritev()" ngx_feature_name="NGX_HAVE_PWRITEV" ngx_feature_run=no ngx_feature_incs='#include <sys/uio.h>' ngx_feature_path= ngx_feature_libs= ngx_feature_test="char buf[1]; struct iovec vec[1]; ssize_t n; vec[0].iov_base = buf; vec[0].iov_len = 1; n = pwritev(1, vec, 1, 0); if (n == -1) return 1" . auto/feature # strerrordesc_np(), introduced in glibc 2.32 ngx_feature="strerrordesc_np()" ngx_feature_name="NGX_HAVE_STRERRORDESC_NP" ngx_feature_run=no ngx_feature_incs='#include <string.h>' ngx_feature_path= ngx_feature_libs= ngx_feature_test="char *p; p = strerrordesc_np(0); if (p == NULL) return 1" . auto/feature if [ $ngx_found = no ]; then ngx_feature="sys_nerr" ngx_feature_name="NGX_SYS_NERR" ngx_feature_run=value ngx_feature_incs='#include <errno.h> #include <stdio.h>' ngx_feature_path= ngx_feature_libs= ngx_feature_test='printf("%d", sys_nerr);' . auto/feature fi if [ $ngx_found = no ]; then # Cygiwn defines _sys_nerr ngx_feature="_sys_nerr" ngx_feature_name="NGX_SYS_NERR" ngx_feature_run=value ngx_feature_incs='#include <errno.h> #include <stdio.h>' ngx_feature_path= ngx_feature_libs= ngx_feature_test='printf("%d", _sys_nerr);' . auto/feature fi ngx_feature="localtime_r()" ngx_feature_name="NGX_HAVE_LOCALTIME_R" ngx_feature_run=no ngx_feature_incs="#include <time.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct tm t; time_t c=0; localtime_r(&c, &t)" . auto/feature ngx_feature="clock_gettime(CLOCK_MONOTONIC)" ngx_feature_name="NGX_HAVE_CLOCK_MONOTONIC" ngx_feature_run=no ngx_feature_incs="#include <time.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts)" . auto/feature if [ $ngx_found = no ]; then # Linux before glibc 2.17, notably CentOS 6 ngx_feature="clock_gettime(CLOCK_MONOTONIC) in librt" ngx_feature_libs="-lrt" . auto/feature if [ $ngx_found = yes ]; then CORE_LIBS="$CORE_LIBS -lrt" fi fi ngx_feature="posix_memalign()" ngx_feature_name="NGX_HAVE_POSIX_MEMALIGN" ngx_feature_run=no ngx_feature_incs="#include <stdlib.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="void *p; int n; n = posix_memalign(&p, 4096, 4096); if (n != 0) return 1" . auto/feature ngx_feature="memalign()" ngx_feature_name="NGX_HAVE_MEMALIGN" ngx_feature_run=no ngx_feature_incs="#include <stdlib.h> #include <malloc.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="void *p; p = memalign(4096, 4096); if (p == NULL) return 1" . auto/feature ngx_feature="mmap(MAP_ANON|MAP_SHARED)" ngx_feature_name="NGX_HAVE_MAP_ANON" ngx_feature_run=yes ngx_feature_incs="#include <sys/mman.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="void *p; p = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_ANON|MAP_SHARED, -1, 0); if (p == MAP_FAILED) return 1;" . auto/feature ngx_feature='mmap("/dev/zero", MAP_SHARED)' ngx_feature_name="NGX_HAVE_MAP_DEVZERO" ngx_feature_run=yes ngx_feature_incs="#include <sys/mman.h> #include <sys/stat.h> #include <fcntl.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test='void *p; int fd; fd = open("/dev/zero", O_RDWR); p = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); if (p == MAP_FAILED) return 1;' . auto/feature ngx_feature="System V shared memory" ngx_feature_name="NGX_HAVE_SYSVSHM" ngx_feature_run=yes ngx_feature_incs="#include <sys/ipc.h> #include <sys/shm.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="int id; id = shmget(IPC_PRIVATE, 4096, (SHM_R|SHM_W|IPC_CREAT)); if (id == -1) return 1; shmctl(id, IPC_RMID, NULL);" . auto/feature ngx_feature="POSIX semaphores" ngx_feature_name="NGX_HAVE_POSIX_SEM" ngx_feature_run=yes ngx_feature_incs="#include <semaphore.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="sem_t sem; if (sem_init(&sem, 1, 0) == -1) return 1; sem_destroy(&sem);" . auto/feature if [ $ngx_found = no ]; then # Linux has POSIX semaphores in libpthread ngx_feature="POSIX semaphores in libpthread" ngx_feature_libs=-lpthread . auto/feature if [ $ngx_found = yes ]; then CORE_LIBS="$CORE_LIBS -lpthread" NGX_LIBPTHREAD="-lpthread" fi fi if [ $ngx_found = no ]; then # Solaris has POSIX semaphores in librt ngx_feature="POSIX semaphores in librt" ngx_feature_libs=-lrt . auto/feature if [ $ngx_found = yes ]; then CORE_LIBS="$CORE_LIBS -lrt" fi fi ngx_feature="struct msghdr.msg_control" ngx_feature_name="NGX_HAVE_MSGHDR_MSG_CONTROL" ngx_feature_run=no ngx_feature_incs="#include <sys/socket.h> #include <stdio.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct msghdr msg; printf(\"%d\", (int) sizeof(msg.msg_control))" . auto/feature ngx_feature="ioctl(FIONBIO)" ngx_feature_name="NGX_HAVE_FIONBIO" ngx_feature_run=no ngx_feature_incs="#include <sys/ioctl.h> #include <stdio.h> $NGX_INCLUDE_SYS_FILIO_H" ngx_feature_path= ngx_feature_libs= ngx_feature_test="int i = FIONBIO; printf(\"%d\", i)" . auto/feature ngx_feature="ioctl(FIONREAD)" ngx_feature_name="NGX_HAVE_FIONREAD" ngx_feature_run=no ngx_feature_incs="#include <sys/ioctl.h> #include <stdio.h> $NGX_INCLUDE_SYS_FILIO_H" ngx_feature_path= ngx_feature_libs= ngx_feature_test="int i = FIONREAD; printf(\"%d\", i)" . auto/feature ngx_feature="struct tm.tm_gmtoff" ngx_feature_name="NGX_HAVE_GMTOFF" ngx_feature_run=no ngx_feature_incs="#include <time.h> #include <stdio.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct tm tm; tm.tm_gmtoff = 0; printf(\"%d\", (int) tm.tm_gmtoff)" . auto/feature ngx_feature="struct dirent.d_namlen" ngx_feature_name="NGX_HAVE_D_NAMLEN" ngx_feature_run=no ngx_feature_incs="#include <dirent.h> #include <stdio.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct dirent dir; dir.d_namlen = 0; printf(\"%d\", (int) dir.d_namlen)" . auto/feature ngx_feature="struct dirent.d_type" ngx_feature_name="NGX_HAVE_D_TYPE" ngx_feature_run=no ngx_feature_incs="#include <dirent.h> #include <stdio.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct dirent dir; dir.d_type = DT_REG; printf(\"%d\", (int) dir.d_type)" . auto/feature ngx_feature="sysconf(_SC_NPROCESSORS_ONLN)" ngx_feature_name="NGX_HAVE_SC_NPROCESSORS_ONLN" ngx_feature_run=no ngx_feature_incs= ngx_feature_path= ngx_feature_libs= ngx_feature_test="sysconf(_SC_NPROCESSORS_ONLN)" . auto/feature ngx_feature="sysconf(_SC_LEVEL1_DCACHE_LINESIZE)" ngx_feature_name="NGX_HAVE_LEVEL1_DCACHE_LINESIZE" ngx_feature_run=no ngx_feature_incs= ngx_feature_path= ngx_feature_libs= ngx_feature_test="sysconf(_SC_LEVEL1_DCACHE_LINESIZE)" . auto/feature ngx_feature="openat(), fstatat()" ngx_feature_name="NGX_HAVE_OPENAT" ngx_feature_run=no ngx_feature_incs="#include <sys/types.h> #include <sys/stat.h> #include <fcntl.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="struct stat sb; openat(AT_FDCWD, \".\", O_RDONLY|O_NOFOLLOW); fstatat(AT_FDCWD, \".\", &sb, AT_SYMLINK_NOFOLLOW);" . auto/feature ngx_feature="getaddrinfo()" ngx_feature_name="NGX_HAVE_GETADDRINFO" ngx_feature_run=no ngx_feature_incs="#include <sys/types.h> #include <sys/socket.h> #include <netdb.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test='struct addrinfo *res; if (getaddrinfo("localhost", NULL, NULL, &res) != 0) return 1; freeaddrinfo(res)' . auto/feature