From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libgfortran/intrinsics/hostnm.c | 144 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 libgfortran/intrinsics/hostnm.c (limited to 'libgfortran/intrinsics/hostnm.c') diff --git a/libgfortran/intrinsics/hostnm.c b/libgfortran/intrinsics/hostnm.c new file mode 100644 index 000000000..99ab18dcb --- /dev/null +++ b/libgfortran/intrinsics/hostnm.c @@ -0,0 +1,144 @@ +/* Implementation of the HOSTNM intrinsic. + Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc. + Contributed by François-Xavier Coudert + +This file is part of the GNU Fortran 95 runtime library (libgfortran). + +Libgfortran is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public +License as published by the Free Software Foundation; either +version 3 of the License, or (at your option) any later version. + +Libgfortran is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +. */ + +#include "libgfortran.h" + +#include +#include + +#ifdef HAVE_UNISTD_H +#include +#endif + + +/* Windows32 version */ +#if defined __MINGW32__ && !defined HAVE_GETHOSTNAME +#define WIN32_LEAN_AND_MEAN +#include +#include + +static int +w32_gethostname (char *name, size_t len) +{ + /* We could try the WinSock API gethostname, but that will + fail if WSAStartup function has has not been called. We don't + really need a name that will be understood by socket API, so avoid + unnecessary dependence on WinSock libraries by using + GetComputerName instead. */ + + /* On Win9x GetComputerName fails if the input size is less + than MAX_COMPUTERNAME_LENGTH + 1. */ + char buffer[MAX_COMPUTERNAME_LENGTH + 1]; + DWORD size = sizeof (buffer); + + if (!GetComputerName (buffer, &size)) + return -1; + + if ((size = strlen (buffer) + 1) > len) + { + errno = EINVAL; + /* Truncate as per POSIX spec. We do not NUL-terminate. */ + size = len; + } + memcpy (name, buffer, (size_t) size); + + return 0; +} + +#undef gethostname +#define gethostname w32_gethostname +#define HAVE_GETHOSTNAME 1 + +#endif + + +/* SUBROUTINE HOSTNM(NAME, STATUS) + CHARACTER(len=*), INTENT(OUT) :: NAME + INTEGER, INTENT(OUT), OPTIONAL :: STATUS */ + +#ifdef HAVE_GETHOSTNAME +extern void hostnm_i4_sub (char *, GFC_INTEGER_4 *, gfc_charlen_type); +iexport_proto(hostnm_i4_sub); + +void +hostnm_i4_sub (char *name, GFC_INTEGER_4 *status, gfc_charlen_type name_len) +{ + int val, i; + char *p; + + memset (name, ' ', name_len); + p = gfc_alloca (name_len + 1); + + val = gethostname (p, name_len); + + if (val == 0) + { + i = -1; + while (i < name_len && p[++i] != '\0') + name[i] = p[i]; + } + + if (status != NULL) + *status = (val == 0) ? 0 : errno; +} +iexport(hostnm_i4_sub); + +extern void hostnm_i8_sub (char *, GFC_INTEGER_8 *, gfc_charlen_type); +iexport_proto(hostnm_i8_sub); + +void +hostnm_i8_sub (char *name, GFC_INTEGER_8 *status, gfc_charlen_type name_len) +{ + int val, i; + char *p; + + memset (name, ' ', name_len); + p = gfc_alloca (name_len + 1); + + val = gethostname (p, name_len); + + if (val == 0) + { + i = -1; + while (i < name_len && p[++i] != '\0') + name[i] = p[i]; + } + + if (status != NULL) + *status = (val == 0) ? 0 : errno; +} +iexport(hostnm_i8_sub); + +extern GFC_INTEGER_4 hostnm (char *, gfc_charlen_type); +export_proto(hostnm); + +GFC_INTEGER_4 +hostnm (char *name, gfc_charlen_type name_len) +{ + GFC_INTEGER_4 val; + hostnm_i4_sub (name, &val, name_len); + return val; +} +#endif -- cgit v1.2.3