diff options
Diffstat (limited to 'usr/src/lib/libproc/common/pr_getsockname.c')
| -rw-r--r-- | usr/src/lib/libproc/common/pr_getsockname.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/usr/src/lib/libproc/common/pr_getsockname.c b/usr/src/lib/libproc/common/pr_getsockname.c new file mode 100644 index 0000000000..ce29c9bdca --- /dev/null +++ b/usr/src/lib/libproc/common/pr_getsockname.c @@ -0,0 +1,169 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 1998-2003 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stream.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include "libproc.h" + +static int +get_sock_peer_name(struct ps_prochandle *Pr, + int syscall, int sock, struct sockaddr *name, socklen_t *namelen) +{ + sysret_t rval; /* return value from get{sock|peer}name() */ + argdes_t argd[4]; /* arg descriptors for get{sock|peer}name() */ + argdes_t *adp; + int error; + + adp = &argd[0]; /* sock argument */ + adp->arg_value = sock; + adp->arg_object = NULL; + adp->arg_type = AT_BYVAL; + adp->arg_inout = AI_INPUT; + adp->arg_size = 0; + + adp++; /* name argument */ + adp->arg_value = 0; + adp->arg_object = name; + adp->arg_type = AT_BYREF; + adp->arg_inout = AI_OUTPUT; + adp->arg_size = *namelen; + + adp++; /* namelen argument */ + adp->arg_value = 0; + adp->arg_object = namelen; + adp->arg_type = AT_BYREF; + adp->arg_inout = AI_INOUT; + adp->arg_size = sizeof (*namelen); + + adp++; /* version argument */ + adp->arg_value = SOV_DEFAULT; + adp->arg_object = NULL; + adp->arg_type = AT_BYVAL; + adp->arg_inout = AI_INPUT; + adp->arg_size = 0; + + error = Psyscall(Pr, &rval, syscall, 4, &argd[0]); + + if (error) { + errno = (error > 0)? error : ENOSYS; + return (-1); + } + return (0); +} + +/* libc system call interface */ +extern int _so_getsockname(int, struct sockaddr *, socklen_t *, int); +extern int _so_getpeername(int, struct sockaddr *, socklen_t *, int); +extern int _so_getsockopt(int, int, int, void *, int *); + +/* + * getsockname() system call -- executed by subject process + */ +int +pr_getsockname(struct ps_prochandle *Pr, + int sock, struct sockaddr *name, socklen_t *namelen) +{ + if (Pr == NULL) /* no subject process */ + return (_so_getsockname(sock, name, namelen, SOV_DEFAULT)); + + return (get_sock_peer_name(Pr, SYS_getsockname, sock, name, namelen)); +} + +/* + * getpeername() system call -- executed by subject process + */ +int +pr_getpeername(struct ps_prochandle *Pr, + int sock, struct sockaddr *name, socklen_t *namelen) +{ + if (Pr == NULL) /* no subject process */ + return (_so_getpeername(sock, name, namelen, SOV_DEFAULT)); + + return (get_sock_peer_name(Pr, SYS_getpeername, sock, name, namelen)); +} + +int +pr_getsockopt(struct ps_prochandle *Pr, + int sock, int level, int optname, void *optval, int *optlen) +{ + sysret_t rval; /* return value from getsockopt() */ + argdes_t argd[5]; /* arg descriptors for getsockopt() */ + argdes_t *adp; + int error; + + if (Pr == NULL) /* no subject process */ + return (_so_getsockopt(sock, level, optname, optval, optlen)); + + adp = &argd[0]; /* sock argument */ + adp->arg_value = sock; + adp->arg_object = NULL; + adp->arg_type = AT_BYVAL; + adp->arg_inout = AI_INPUT; + adp->arg_size = 0; + + adp++; /* level argument */ + adp->arg_value = level; + adp->arg_object = NULL; + adp->arg_type = AT_BYVAL; + adp->arg_inout = AI_INPUT; + adp->arg_size = 0; + + adp++; /* optname argument */ + adp->arg_value = optname; + adp->arg_object = NULL; + adp->arg_type = AT_BYVAL; + adp->arg_inout = AI_INPUT; + adp->arg_size = 0; + + adp++; /* optval argument */ + adp->arg_value = 0; + adp->arg_object = optval; + adp->arg_type = AT_BYREF; + adp->arg_inout = AI_OUTPUT; + adp->arg_size = optlen == NULL ? 0 : *optlen; + + adp++; /* optlen argument */ + adp->arg_value = 0; + adp->arg_object = optlen; + adp->arg_type = AT_BYREF; + adp->arg_inout = AI_INOUT; + adp->arg_size = sizeof (*optlen); + + error = Psyscall(Pr, &rval, SYS_getsockopt, 5, &argd[0]); + + if (error) { + errno = (error > 0)? error : ENOSYS; + return (-1); + } + return (0); +} |