path: root/SConstruct
diff options
authorGlenn Strauss <>2016-12-17 17:58:34 -0500
committerGlenn Strauss <>2016-12-17 18:07:42 -0500
commit22ca2778a8cab9040a7f0809169d6076027d21bf (patch)
treefad51b37ca6a76eadb923c932aa23640f786e221 /SConstruct
parent9619d643ff27085e5d59d14a3c2abe4864bdaa2d (diff)
[build] check for pipe2() at configure time
Lack of pipe2() on relic Unix as well as missing on Mac OSX is likely one reason why threaded web servers such as nginx choose not to support CGI except via an external service to the process. Without pipe2(), race conditions exist and it is not safe for a threaded server to use pipe() and fork() when the server also does not want to potentially leak open file descriptors to various unrelated CGI scripts.
Diffstat (limited to 'SConstruct')
1 files changed, 1 insertions, 1 deletions
diff --git a/SConstruct b/SConstruct
index a0a4558d..74c2838e 100644
--- a/SConstruct
+++ b/SConstruct
@@ -220,7 +220,7 @@ if 1:
gethostbyname poll epoll_ctl getrlimit chroot \
getuid select signal pathconf madvise prctl\
writev sigaction sendfile64 send_file kqueue port_create localtime_r posix_fadvise issetugid inet_pton \
- memset_s explicit_bzero clock_gettime \
+ memset_s explicit_bzero clock_gettime pipe2 \
getentropy arc4random_buf jrand48 srandom getloadavg'))
checkFunc(autoconf, 'getrandom', 'linux/random.h')