[v5,14/35] execveat.2: Use syscall(SYS_...); for system calls without a wrapper
Commit Message
Add <linux/fcntl.h>, which contains AT_* definitions used by
execveat().
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
man2/execveat.2 | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)
Comments
Hi Alex,
On 4/4/21 1:58 PM, Alejandro Colomar wrote:
> Add <linux/fcntl.h>, which contains AT_* definitions used by
> execveat().
>
> Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Patch applied.
Thanks,
Michael
> ---
> man2/execveat.2 | 14 +++++---------
> 1 file changed, 5 insertions(+), 9 deletions(-)
>
> diff --git a/man2/execveat.2 b/man2/execveat.2
> index 855832765..c566f53df 100644
> --- a/man2/execveat.2
> +++ b/man2/execveat.2
> @@ -28,15 +28,14 @@
> execveat \- execute program relative to a directory file descriptor
> .SH SYNOPSIS
> .nf
> +.BR "#include <linux/fcntl.h>" " /* Definition of " AT_* " constants */"
> +.BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */"
> .B #include <unistd.h>
> .PP
> -.BI "int execveat(int " dirfd ", const char *" pathname ,
> -.BI " const char *const " argv "[], const char *const " envp [],
> -.BI " int " flags );
> +.BI "int syscall(SYS_execveat, int " dirfd ", const char *" pathname ,
> +.BI " const char *const " argv "[], const char *const " envp [],
> +.BI " int " flags );
> .fi
> -.PP
> -.IR Note :
> -There is no glibc wrapper for this system call; see NOTES.
> .\" FIXME . See https://sourceware.org/bugzilla/show_bug.cgi?id=27364
> .SH DESCRIPTION
> .\" commit 51f39a1f0cea1cacf8c787f652f26dfee9611874
> @@ -209,9 +208,6 @@ the natural idiom when using
> is to set the close-on-exec flag on
> .IR dirfd .
> (But see BUGS.)
> -.PP
> -Glibc does not provide a wrapper for this system call; call it using
> -.BR syscall (2).
> .SH BUGS
> The
> .B ENOENT
>
@@ -28,15 +28,14 @@
execveat \- execute program relative to a directory file descriptor
.SH SYNOPSIS
.nf
+.BR "#include <linux/fcntl.h>" " /* Definition of " AT_* " constants */"
+.BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */"
.B #include <unistd.h>
.PP
-.BI "int execveat(int " dirfd ", const char *" pathname ,
-.BI " const char *const " argv "[], const char *const " envp [],
-.BI " int " flags );
+.BI "int syscall(SYS_execveat, int " dirfd ", const char *" pathname ,
+.BI " const char *const " argv "[], const char *const " envp [],
+.BI " int " flags );
.fi
-.PP
-.IR Note :
-There is no glibc wrapper for this system call; see NOTES.
.\" FIXME . See https://sourceware.org/bugzilla/show_bug.cgi?id=27364
.SH DESCRIPTION
.\" commit 51f39a1f0cea1cacf8c787f652f26dfee9611874
@@ -209,9 +208,6 @@ the natural idiom when using
is to set the close-on-exec flag on
.IR dirfd .
(But see BUGS.)
-.PP
-Glibc does not provide a wrapper for this system call; call it using
-.BR syscall (2).
.SH BUGS
The
.B ENOENT