1 files changed, 108 insertions, 0 deletions
diff --git a/contrib/awk/posix/gawkmisc.c b/contrib/awk/posix/gawkmisc.c
new file mode 100644
index 0000000..68bfb5d
--- /dev/null
+++ b/contrib/awk/posix/gawkmisc.c
@@ -0,0 +1,108 @@
+/* gawkmisc.c --- miscellanious gawk routines that are OS specific.
+ 
+   Copyright (C) 1986, 1988, 1989, 1991 - 96 the Free Software Foundation, Inc.
+
+   This program 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 2, or (at your option)
+   any later version.
+
+   This program 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.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+char quote = '\'';
+char *defpath = DEFPATH;
+char envsep = ':';
+
+/* gawk_name --- pull out the "gawk" part from how the OS called us */
+
+char *
+gawk_name(filespec)
+const char *filespec;
+{
+	char *p;
+    
+	/* "path/name" -> "name" */
+	p = strrchr(filespec, '/');
+	return (p == NULL ? (char *) filespec : p + 1);
+}
+
+/* os_arg_fixup --- fixup the command line */
+
+void
+os_arg_fixup(argcp, argvp)
+int *argcp;
+char ***argvp;
+{
+	/* no-op */
+	return;
+}
+
+/* os_devopen --- open special per-OS devices */
+
+int
+os_devopen(name, flag)
+const char *name;
+int flag;
+{
+	/* no-op */
+	return INVALID_HANDLE;
+}
+
+/* optimal_bufsize --- determine optimal buffer size */
+
+int
+optimal_bufsize(fd, stb)
+int fd;
+struct stat *stb;
+{
+	/* force all members to zero in case OS doesn't use all of them. */
+	memset(stb, '\0', sizeof(struct stat));
+
+	/*
+	 * System V.n, n < 4, doesn't have the file system block size in the
+	 * stat structure. So we have to make some sort of reasonable
+	 * guess. We use stdio's BUFSIZ, since that is what it was
+	 * meant for in the first place.
+	 */
+#ifdef HAVE_ST_BLKSIZE
+#define DEFBLKSIZE	(stb->st_blksize ? stb->st_blksize : BUFSIZ)
+#else
+#define	DEFBLKSIZE	BUFSIZ
+#endif
+
+	if (isatty(fd))
+		return BUFSIZ;
+	if (fstat(fd, stb) == -1)
+		fatal("can't stat fd %d (%s)", fd, strerror(errno));
+	if (lseek(fd, (off_t)0, 0) == -1)	/* not a regular file */
+		return DEFBLKSIZE;
+	if (stb->st_size > 0 && stb->st_size < DEFBLKSIZE) /* small file */
+		return stb->st_size;
+	return DEFBLKSIZE;
+}
+
+/* ispath --- return true if path has directory components */
+
+int
+ispath(file)
+const char *file;
+{
+	return (strchr(file, '/') != NULL);
+}
+
+/* isdirpunct --- return true if char is a directory separator */
+
+int
+isdirpunct(c)
+int c;
+{
+	return (c == '/');
+}
+