diff options
Diffstat (limited to 'lib/libc/gen/posix_spawn_file_actions_addopen.3')
| -rw-r--r-- | lib/libc/gen/posix_spawn_file_actions_addopen.3 | 86 |
1 files changed, 79 insertions, 7 deletions
diff --git a/lib/libc/gen/posix_spawn_file_actions_addopen.3 b/lib/libc/gen/posix_spawn_file_actions_addopen.3 index 0b57999bf4be..80bc91454471 100644 --- a/lib/libc/gen/posix_spawn_file_actions_addopen.3 +++ b/lib/libc/gen/posix_spawn_file_actions_addopen.3 @@ -32,26 +32,55 @@ .\" the referee document. The original Standard can be obtained online at .\" http://www.opengroup.org/unix/online.html. .\" -.\" $FreeBSD$ -.\" .Dd May 9, 2013 .Dt POSIX_SPAWN_FILE_ACTIONS_ADDOPEN 3 .Os .Sh NAME .Nm posix_spawn_file_actions_addopen , .Nm posix_spawn_file_actions_adddup2 , -.Nm posix_spawn_file_actions_addclose -.Nd "add open, dup2 or close action to spawn file actions object" +.Nm posix_spawn_file_actions_addclose , +.Nm posix_spawn_file_actions_addclosefrom_np , +.Nm posix_spawn_file_actions_addchdir_np , +.Nm posix_spawn_file_actions_addfchdir_np +.Nd "add open, dup2, close, closefrom, or chdir/fchdir actions to spawn file actions object" .Sh LIBRARY .Lb libc .Sh SYNOPSIS .In spawn.h .Ft int -.Fn posix_spawn_file_actions_addopen "posix_spawn_file_actions_t * file_actions" "int fildes" "const char *restrict path" "int oflag" "mode_t mode" +.Fo posix_spawn_file_actions_addopen +.Fa "posix_spawn_file_actions_t * file_actions" +.Fa "int fildes" +.Fa "const char *restrict path" +.Fa "int oflag" +.Fa "mode_t mode" +.Fc +.Ft int +.Fo posix_spawn_file_actions_adddup2 +.Fa "posix_spawn_file_actions_t * file_actions" +.Fa "int fildes" +.Fa "int newfildes" +.Fc +.Ft int +.Fo posix_spawn_file_actions_addclose +.Fa "posix_spawn_file_actions_t * file_actions" +.Fa "int fildes" +.Fc .Ft int -.Fn posix_spawn_file_actions_adddup2 "posix_spawn_file_actions_t * file_actions" "int fildes" "int newfildes" +.Fo posix_spawn_file_actions_addclosefrom_np +.Fa "posix_spawn_file_actions_t * file_actions" +.Fa "int from" +.Fc .Ft int -.Fn posix_spawn_file_actions_addclose "posix_spawn_file_actions_t * file_actions" "int fildes" +.Fo posix_spawn_file_actions_addchdir_np +.Fa "posix_spawn_file_actions_t *restrict file_actions" +.Fa "const char *restrict path" +.Fc +.Ft int +.Fo posix_spawn_file_actions_addfchdir_np +.Fa "posix_spawn_file_actions_t * file_actions" +.Fa "int fildes" +.Fc .Sh DESCRIPTION These functions add an open, dup2 or close action to a spawn file actions object. @@ -150,6 +179,34 @@ close(fildes) .Pp had been called) when a new process is spawned using this file actions object. +.Pp +The +.Fn posix_spawn_file_actions_addclosefrom_np +function adds a close action to close all file descriptors numerically +equal or greater then the argument +.Fa from . +For each open file descriptor, logically the close action is performed, +and any possible errors encountered are ignored. +.Pp +The +.Fn posix_spawn_file_actions_addchdir_np +and +.Fn posix_spawn_file_actions_addfchdir_np +functions add a change current directory action to the object +referenced by +.Fa file_actions +that affects actions (opens with relative path) performed after the operation, +in the order of insertion into the +.Fa file_actions +object. +It also sets the working directory for the spawned program. +The +.Fn posix_spawn_file_actions_addchdir_np +function takes the +.Fa path +to set as the working directory, while +.Fn posix_spawn_file_actions_addfchdir_np +takes the directory file descriptor. .Sh RETURN VALUES Upon successful completion, these functions return zero; otherwise, an error number is returned to indicate the error. @@ -191,6 +248,14 @@ is equal to (clearing .Dv FD_CLOEXEC ) . A future update of the Standard is expected to require this behavior. +.Pp +The +.Fn posix_spawn_file_actions_addchdir_np , +.Fn posix_spawn_file_actions_addfchdir_np , +and +.Fn posix_spawn_file_actions_addclosefrom_np +functions are non-standard functions implemented after the similar +functionality provided by glibc. .Sh HISTORY The .Fn posix_spawn_file_actions_addopen , @@ -199,5 +264,12 @@ and .Fn posix_spawn_file_actions_addclose functions first appeared in .Fx 8.0 . +The +.Fn posix_spawn_file_actions_addchdir_np , +.Fn posix_spawn_file_actions_addfchdir_np , +and +.Fn posix_spawn_file_actions_addclosefrom_np +functions first appeared in +.Fx 13.1 . .Sh AUTHORS .An \&Ed Schouten Aq Mt ed@FreeBSD.org |