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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 3/5] devel/sysdefs-list: show more info regardless of OS
Date: Fri,  6 Oct 2023 09:46:02 +0000
Message-ID: <20231006094604.95809-4-e@80x24.org>
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We'll show SO_ACCEPTFILTER since it's supported on three
of the BSDs we support.
---
 devel/sysdefs-list | 45 ++++++++++++++++++++++-----------------------
 1 file changed, 22 insertions(+), 23 deletions(-)

diff --git a/devel/sysdefs-list b/devel/sysdefs-list
index edac253b..d0166461 100755
--- a/devel/sysdefs-list
+++ b/devel/sysdefs-list
@@ -37,13 +37,13 @@ __DATA__
 #include <assert.h>
 #include <signal.h>
 #include <stddef.h>
+#include <sys/socket.h>
 #include <sys/syscall.h>
 #include <sys/ioctl.h>
 #ifdef __linux__
 #	include <linux/fs.h>
 #	include <sys/epoll.h>
 #	include <sys/inotify.h>
-#	include <sys/socket.h> // we don't care about this on *BSD
 #	include <sys/vfs.h>
 #endif
 #include <sys/types.h>
@@ -93,8 +93,6 @@ int main(void)
 	D(SYS_inotify_rm_watch);
 	D(SYS_prctl);
 	D(SYS_fstatfs);
-	D(SYS_sendmsg);
-	D(SYS_recvmsg);
 
 	MAYBE X(FS_IOC_GETFLAGS);
 	MAYBE X(FS_IOC_SETFLAGS);
@@ -114,36 +112,21 @@ int main(void)
 		PR_OFF(name);
 	STRUCT_END;
 
-	/*
-	 * msghdr and cmsghdr are portable, but we only care about its layout
-	 * on OSes like Linux with stable syscall numbers
-	 */
-	STRUCT_BEGIN(struct msghdr);
-		PR_PTR(msg_name);
-		PR_NUM(msg_namelen);
-		PR_PTR(msg_iov);
-		PR_NUM(msg_iovlen);
-		PR_PTR(msg_control);
-		PR_NUM(msg_controllen);
-		PR_NUM(msg_flags);
-	STRUCT_END;
-
-	STRUCT_BEGIN(struct cmsghdr);
-		PR_NUM(cmsg_len);
-		PR_NUM(cmsg_level);
-		PR_NUM(cmsg_type);
-	STRUCT_END;
-
 	STRUCT_BEGIN(struct statfs);
 		PR_NUM(f_type);
 	STRUCT_END;
 #endif /* Linux, any other OSes with stable syscalls? */
+
 	D(SIGWINCH);
+	MAYBE D(SO_ACCEPTFILTER);
 	MAYBE D(_SC_NPROCESSORS_ONLN);
 	MAYBE D(_SC_AVPHYS_PAGES);
 	MAYBE D(_SC_PAGE_SIZE);
 	MAYBE D(_SC_PAGESIZE);
 
+	D(SYS_sendmsg);
+	D(SYS_recvmsg);
+
 	STRUCT_BEGIN(struct flock);
 		PR_NUM(l_start);
 		PR_NUM(l_len);
@@ -152,5 +135,21 @@ int main(void)
 		PR_NUM(l_whence);
 	STRUCT_END;
 
+	STRUCT_BEGIN(struct msghdr);
+		PR_PTR(msg_name);
+		PR_NUM(msg_namelen);
+		PR_PTR(msg_iov);
+		PR_NUM(msg_iovlen);
+		PR_PTR(msg_control);
+		PR_NUM(msg_controllen);
+		PR_NUM(msg_flags);
+	STRUCT_END;
+
+	STRUCT_BEGIN(struct cmsghdr);
+		PR_NUM(cmsg_len);
+		PR_NUM(cmsg_level);
+		PR_NUM(cmsg_type);
+	STRUCT_END;
+
 	return 0;
 }