From 1b93121761e16117d1926e8d57bad17cc5b2701a Mon Sep 17 00:00:00 2001 From: Marius Vlad Date: Mon, 19 Sep 2022 22:56:12 +0300 Subject: [PATCH] shared: introduce os_fd_clear_cloexec() This function will be used between fork() and exec() to remove the close-on-exec flag. The first user will be compositor/xwayland.c. Bug-AGL: SPEC-4510 Signed-off-by: Pekka Paalanen Signed-off-by: Marius Vlad Change-Id: Ib2245394654651583f9d59785540962ae4cb8a28 --- shared/os-compatibility.c | 15 +++++++++++++++ shared/os-compatibility.h | 3 +++ 2 files changed, 18 insertions(+) diff --git a/shared/os-compatibility.c b/shared/os-compatibility.c index 4bf7d81..681a544 100644 --- a/shared/os-compatibility.c +++ b/shared/os-compatibility.c @@ -403,3 +403,18 @@ os_ro_anonymous_file_put_fd(int fd) return 0; } + +int +os_fd_clear_cloexec(int fd) +{ + int flags; + + flags = fcntl(fd, F_GETFD); + if (flags == -1) + return -1; + + if (fcntl(fd, F_SETFD, flags & ~(int)FD_CLOEXEC) == -1) + return -1; + + return 0; +} diff --git a/shared/os-compatibility.h b/shared/os-compatibility.h index 1ad45d7..c396c7d 100644 --- a/shared/os-compatibility.h +++ b/shared/os-compatibility.h @@ -69,4 +69,7 @@ os_ro_anonymous_file_get_fd(struct ro_anonymous_file *file, int os_ro_anonymous_file_put_fd(int fd); +int +os_fd_clear_cloexec(int fd); + #endif /* OS_COMPATIBILITY_H */ -- 2.16.6