diff options
Diffstat (limited to 'usr/src/lib/libproc/common/pr_sigaction.c')
| -rw-r--r-- | usr/src/lib/libproc/common/pr_sigaction.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/usr/src/lib/libproc/common/pr_sigaction.c b/usr/src/lib/libproc/common/pr_sigaction.c new file mode 100644 index 0000000000..2ac068ecbb --- /dev/null +++ b/usr/src/lib/libproc/common/pr_sigaction.c @@ -0,0 +1,126 @@ +/* + * 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 1997-2003 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/isa_defs.h> + +#include <stdlib.h> +#include <unistd.h> +#include <signal.h> +#include <memory.h> +#include <errno.h> + +#include "P32ton.h" +#include "libproc.h" + +/* + * sigaction() system call -- executed by subject process. + */ +int +pr_sigaction(struct ps_prochandle *Pr, + int sig, const struct sigaction *act, struct sigaction *oact) +{ + sysret_t rval; /* return value from sigaction() */ + argdes_t argd[3]; /* arg descriptors for sigaction() */ + argdes_t *adp; + int error; +#ifdef _LP64 + struct sigaction32 act32; + struct sigaction32 oact32; +#endif /* _LP64 */ + + if (Pr == NULL) /* no subject process */ + return (sigaction(sig, act, oact)); + + adp = &argd[0]; /* sig argument */ + adp->arg_value = sig; + adp->arg_object = NULL; + adp->arg_type = AT_BYVAL; + adp->arg_inout = AI_INPUT; + adp->arg_size = 0; + + adp++; /* act argument */ + adp->arg_value = 0; + if (act == NULL) { + adp->arg_type = AT_BYVAL; + adp->arg_inout = AI_INPUT; + adp->arg_object = NULL; + adp->arg_size = 0; + } else { + adp->arg_type = AT_BYREF; + adp->arg_inout = AI_INPUT; +#ifdef _LP64 + if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) { + sigaction_n_to_32(act, &act32); + adp->arg_object = &act32; + adp->arg_size = sizeof (act32); + } else { + adp->arg_object = (void *)act; + adp->arg_size = sizeof (*act); + } +#else /* _LP64 */ + adp->arg_object = (void *)act; + adp->arg_size = sizeof (*act); +#endif /* _LP64 */ + } + + adp++; /* oact argument */ + adp->arg_value = 0; + if (oact == NULL) { + adp->arg_type = AT_BYVAL; + adp->arg_inout = AI_INPUT; + adp->arg_object = NULL; + adp->arg_size = 0; + } else { + adp->arg_type = AT_BYREF; + adp->arg_inout = AI_OUTPUT; +#ifdef _LP64 + if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) { + adp->arg_object = &oact32; + adp->arg_size = sizeof (oact32); + } else { + adp->arg_object = oact; + adp->arg_size = sizeof (*oact); + } +#else /* _LP64 */ + adp->arg_object = oact; + adp->arg_size = sizeof (*oact); +#endif /* _LP64 */ + } + + error = Psyscall(Pr, &rval, SYS_sigaction, 3, &argd[0]); + + if (error) { + errno = (error > 0)? error : ENOSYS; + return (-1); + } +#ifdef _LP64 + if (oact != NULL && Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) + sigaction_32_to_n(&oact32, oact); +#endif /* _LP64 */ + return (rval.sys_rval1); +} |