From: Bruce Momjian <bruce@momjian.us>
Date: Wed, 23 Oct 2002 20:56:24 +0000 (+0000)
Subject: Add fseeko/ftello using fsetpos/fgetpos for BSD/OS.
X-Git-Tag: REL7_3~186
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=dc4d18e0567eee4af09a1d146a92fd7b59c353a2;p=postgresql

Add fseeko/ftello using fsetpos/fgetpos for BSD/OS.
---

diff --git a/configure b/configure
index 40ff59975b..d4b1134f3a 100755
--- a/configure
+++ b/configure
@@ -10463,7 +10463,8 @@ fi
 
 
 
-for ac_func in gethostname getrusage inet_aton random srandom strcasecmp strdup strerror strtol strtoul
+
+for ac_func in fseeko gethostname getrusage inet_aton random srandom strcasecmp strdup strerror strtol strtoul
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -11470,6 +11471,9 @@ fi
 done
 
 
+case $host_os in bsdi*)
+ac_cv_func_fseeko=yes
+esac
 echo "$as_me:$LINENO: checking for _LARGEFILE_SOURCE value needed for large files" >&5
 echo $ECHO_N "checking for _LARGEFILE_SOURCE value needed for large files... $ECHO_C" >&6
 if test "${ac_cv_sys_largefile_source+set}" = set; then
diff --git a/configure.in b/configure.in
index 8d6cf49618..1fd159c36b 100644
--- a/configure.in
+++ b/configure.in
@@ -1,5 +1,5 @@
 dnl Process this file with autoconf to produce a configure script.
-dnl $Header: /cvsroot/pgsql/configure.in,v 1.211 2002/09/25 13:23:15 momjian Exp $
+dnl $Header: /cvsroot/pgsql/configure.in,v 1.212 2002/10/23 20:56:24 momjian Exp $
 dnl
 dnl Developers, please strive to achieve this order:
 dnl
@@ -835,7 +835,7 @@ else
   AC_CHECK_FUNCS([fpclass fp_class fp_class_d class], [break])
 fi
 
-AC_REPLACE_FUNCS([gethostname getrusage inet_aton random srandom strcasecmp strdup strerror strtol strtoul])
+AC_REPLACE_FUNCS([fseeko gethostname getrusage inet_aton random srandom strcasecmp strdup strerror strtol strtoul])
 
 # Solaris has a very slow qsort in certain cases.
 case $host_os in 
@@ -903,6 +903,9 @@ AC_CHECK_FUNCS(atexit, [],
                [AC_CHECK_FUNCS(on_exit, [],
                                [AC_MSG_ERROR([neither atexit() nor on_exit() found])])])
 
+case $host_os in bsdi*)
+ac_cv_func_fseeko=yes
+esac
 AC_FUNC_FSEEKO
 
 
diff --git a/src/port/fseeko.c b/src/port/fseeko.c
new file mode 100644
index 0000000000..22aa80c98d
--- /dev/null
+++ b/src/port/fseeko.c
@@ -0,0 +1,76 @@
+/*-------------------------------------------------------------------------
+ *
+ * fseeko.c
+ *	  64-bit versions of fseeko/ftello()
+ *
+ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *	  $Header: /cvsroot/pgsql/src/port/fseeko.c,v 1.1 2002/10/23 20:56:24 momjian Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#ifdef __bsdi__
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+/*
+ *	On BSD/OS, off_t and fpos_t are the same.  Standards say
+ *	off_t is an arithmetic type, but not necessarily integral,
+ *	while fpos_t might be neither.
+ *
+ *	I don't think this is thread-safe.
+ */
+
+int
+fseeko(FILE *stream, off_t offset, int whence)
+{
+	off_t floc;
+	struct stat filestat;
+
+	switch (whence)
+	{
+		case SEEK_CUR:
+			if (fgetpos(stream, &floc) != 0)
+				return -1;
+			floc += offset;
+			if (fsetpos(stream, &floc) != 0)
+				return -1;
+			return 0;
+			break;
+		case SEEK_SET:
+			if (fsetpos(stream, &offset) != 0)
+				return -1;
+			return 0;
+			break;
+		case SEEK_END:
+			if (fstat(fileno(stream), &filestat) != 0)
+				return -1;
+			floc = filestat.st_size;
+			if (fsetpos(stream, &floc) != 0)
+				return -1;
+			return 0;
+			break;
+		default:
+			errno =	EINVAL;
+			return -1;
+	}
+}
+
+
+off_t
+ftello(FILE *stream)
+{
+	off_t floc;
+
+	if (fgetpos(stream, &floc) != 0)
+		return -1;
+	return floc;
+}
+#endif