[PATCH v5 14/35] execveat.2: Use syscall(SYS_...); for system calls without a wrapper
Alejandro Colomar
alx.manpages@gmail.com
Sun Apr 4 11:58:27 GMT 2021
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(-)
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
--
2.31.0
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