BSD 4.4 Lite Usr.bin Sources

1 files changed, 141 insertions, 0 deletions

diff --git a/usr.bin/sed/misc.c b/usr.bin/sed/misc.c
new file mode 100644
index 0000000..444b7a8
--- /dev/null
+++ b/usr.bin/sed/misc.c
@@ -0,0 +1,141 @@
+/*-
+ * Copyright (c) 1992 Diomidis Spinellis.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Diomidis Spinellis of Imperial College, University of London.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+
+#include <errno.h>
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "defs.h"
+#include "extern.h"
+
+/*
+ * malloc with result test
+ */
+void *
+xmalloc(size)
+	u_int size;
+{
+	void *p;
+
+	if ((p = malloc(size)) == NULL)
+		err(FATAL, "%s", strerror(errno));
+	return (p);
+}
+
+/*
+ * realloc with result test
+ */
+void *
+xrealloc(p, size)
+	void *p;
+	u_int size;
+{
+	if (p == NULL)			/* Compatibility hack. */
+		return (xmalloc(size));
+
+	if ((p = realloc(p, size)) == NULL)
+		err(FATAL, "%s", strerror(errno));
+	return (p);
+}
+
+/*
+ * Return a string for a regular expression error passed.  This is a overkill,
+ * because of the silly semantics of regerror (we can never know the size of
+ * the buffer).
+ */
+char *
+strregerror(errcode, preg)
+	int errcode;
+	regex_t *preg;
+{
+	static char *oe;
+	size_t s;
+
+	if (oe != NULL)
+		free(oe);
+	s = regerror(errcode, preg, "", 0);
+	oe = xmalloc(s);
+	(void)regerror(errcode, preg, oe, s);
+	return (oe);
+}
+
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+/*
+ * Error reporting function
+ */
+void
+#if __STDC__
+err(int severity, const char *fmt, ...)
+#else
+err(severity, fmt, va_alist)
+	int severity;
+	char *fmt;
+        va_dcl
+#endif
+{
+	va_list ap;
+#if __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	(void)fprintf(stderr, "sed: ");
+	switch (severity) {
+	case WARNING:
+	case COMPILE:
+		(void)fprintf(stderr, "%lu: %s: ", linenum, fname);
+	}
+	(void)vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	(void)fprintf(stderr, "\n");
+	if (severity == WARNING)
+		return;
+	exit(1);
+	/* NOTREACHED */
+}