[v5,21/35] getdents.2: Use syscall(SYS_...); for system calls without a wrapper

Message ID 20210404115847.78166-22-alx.manpages@gmail.com
State Not applicable
Headers
Series None |

Commit Message

Alejandro Colomar April 4, 2021, 11:58 a.m. UTC
  Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
 man2/getdents.2 | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)
  

Comments

Michael Kerrisk \(man-pages\) April 5, 2021, 11:37 a.m. UTC | #1
Hi Alex,

On 4/4/21 1:58 PM, Alejandro Colomar wrote:
> Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
> ---
>  man2/getdents.2 | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)

Patch applied.

Thanks,

Michael


> diff --git a/man2/getdents.2 b/man2/getdents.2
> index ec00a73ba..6a9f4e04c 100644
> --- a/man2/getdents.2
> +++ b/man2/getdents.2
> @@ -33,7 +33,11 @@
>  getdents, getdents64 \- get directory entries
>  .SH SYNOPSIS
>  .nf
> -.BI "long getdents(unsigned int " fd ", struct linux_dirent *" dirp ,
> +.BR "#include <sys/syscall.h>" "      /* Definition of " SYS_* " constants */"
> +.B #include <unistd.h>
> +.PP
> +.BI "long syscall(SYS_getdents, unsigned int " fd \
> +", struct linux_dirent *" dirp ,
>  .BI "             unsigned int " count );
>  .PP
>  .BR "#define _GNU_SOURCE" "        /* See feature_test_macros(7) */"
> @@ -43,9 +47,9 @@ getdents, getdents64 \- get directory entries
>  .fi
>  .PP
>  .IR Note :
> -There is no glibc wrapper for
> -.BR getdents ();
> -see NOTES.
> +There is no definition of
> +.B struct linux_dirent
> +in glibc; see NOTES.
>  .SH DESCRIPTION
>  These are not the interfaces you are interested in.
>  Look at
>
  

Patch

diff --git a/man2/getdents.2 b/man2/getdents.2
index ec00a73ba..6a9f4e04c 100644
--- a/man2/getdents.2
+++ b/man2/getdents.2
@@ -33,7 +33,11 @@ 
 getdents, getdents64 \- get directory entries
 .SH SYNOPSIS
 .nf
-.BI "long getdents(unsigned int " fd ", struct linux_dirent *" dirp ,
+.BR "#include <sys/syscall.h>" "      /* Definition of " SYS_* " constants */"
+.B #include <unistd.h>
+.PP
+.BI "long syscall(SYS_getdents, unsigned int " fd \
+", struct linux_dirent *" dirp ,
 .BI "             unsigned int " count );
 .PP
 .BR "#define _GNU_SOURCE" "        /* See feature_test_macros(7) */"
@@ -43,9 +47,9 @@  getdents, getdents64 \- get directory entries
 .fi
 .PP
 .IR Note :
-There is no glibc wrapper for
-.BR getdents ();
-see NOTES.
+There is no definition of
+.B struct linux_dirent
+in glibc; see NOTES.
 .SH DESCRIPTION
 These are not the interfaces you are interested in.
 Look at