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author | Cameron Katri <me@cameronkatri.com> | 2021-05-09 14:20:58 -0400 |
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committer | Cameron Katri <me@cameronkatri.com> | 2021-05-09 14:20:58 -0400 |
commit | 5fd83771641d15c418f747bd343ba6738d3875f7 (patch) | |
tree | 5abf0f78f680d9837dbd93d4d4c3933bb7509599 /system_cmds/wait4path | |
download | apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.gz apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.zst apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.zip |
Import macOS userland
adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
Diffstat (limited to 'system_cmds/wait4path')
-rw-r--r-- | system_cmds/wait4path/wait4path.1 | 37 | ||||
-rw-r--r-- | system_cmds/wait4path/wait4path.c | 64 | ||||
-rw-r--r-- | system_cmds/wait4path/wait4path.version | 5 |
3 files changed, 106 insertions, 0 deletions
diff --git a/system_cmds/wait4path/wait4path.1 b/system_cmds/wait4path/wait4path.1 new file mode 100644 index 0000000..7635261 --- /dev/null +++ b/system_cmds/wait4path/wait4path.1 @@ -0,0 +1,37 @@ +."Copyright (c) 2015 Apple Inc. All rights reserved. +." +."@APPLE_LICENSE_HEADER_START@ +." +."This file contains Original Code and/or Modifications of Original Code +."as defined in and that are subject to the Apple Public Source License +."Version 2.0 (the 'License'). You may not use this file except in +."compliance with the License. Please obtain a copy of the License at +."http://www.opensource.apple.com/apsl/ and read it before using this +."file. +." +."The Original Code and all software distributed under the License are +."distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER +."EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, +."INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, +."FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. +."Please see the License for the specific language governing rights and +."limitations under the License. +." +."@APPLE_LICENSE_HEADER_END@ +." +.Dd 14 December, 2013 +.Dt WAIT4PATH 1 +.Os Darwin +.Sh NAME +.Nm wait4path +.Nd wait for given path to show up in the namespace +.Sh SYNOPSIS +.Nm +.Ao Ar path Ac +.Sh DESCRIPTION +The +.Nm +program simply checks to see if the given path exists, and if so, it exits. +Otherwise, it sleeps until the mount table is updated and checks again. The +program will loop indefinitely until the path shows up in the file system +namespace. diff --git a/system_cmds/wait4path/wait4path.c b/system_cmds/wait4path/wait4path.c new file mode 100644 index 0000000..997f433 --- /dev/null +++ b/system_cmds/wait4path/wait4path.c @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2015 Apple Inc. All rights reserved. + * + * @APPLE_LICENSE_HEADER_START@ + * + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this + * file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. + * + * @APPLE_LICENSE_HEADER_END@ + */ + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/event.h> +#include <sys/stat.h> +#include <sys/types.h> + +int +main(int argc, char *argv[]) +{ + int kq = kqueue(); + struct kevent kev; + struct stat sb; + + if (argc != 2) { + fprintf(stderr, "usage: %s <object on mount point>\n", argv[0]); + exit(EXIT_FAILURE); + } + + EV_SET(&kev, 0, EVFILT_FS, EV_ADD, 0, 0, 0); + + if (kevent(kq, &kev, 1, NULL, 0, NULL) == -1) { + fprintf(stderr, "adding EVFILT_FS to kqueue failed: %s\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + + if (stat(argv[1], &sb) == 0) { + exit(EXIT_SUCCESS); + } + + for (;;) { + kevent(kq, NULL, 0, &kev, 1, NULL); + if (stat(argv[1], &sb) == 0) { + break; + } + } + + exit(EXIT_SUCCESS); +} diff --git a/system_cmds/wait4path/wait4path.version b/system_cmds/wait4path/wait4path.version new file mode 100644 index 0000000..b01adfa --- /dev/null +++ b/system_cmds/wait4path/wait4path.version @@ -0,0 +1,5 @@ +DARWIN_BUNDLE_IDENTIFIER="com.apple.system_cmds.wait4path" +DARWIN_DISPLAY_NAME="Darwin Filesystem Path Waiter" +DARWIN_DISPLAY_VERSION="1.0.0" +DARWIN_INCREMENTAL_VERSION="$CURRENT_PROJECT_VERSION" +DARWIN_COPYRIGHT="Copyright 2015 Apple Inc. All rights reserved." |