Adding upstream version 1:4.17.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 05:06:56 +02:00 · 2025-06-22 05:06:56 +02:00 · 09a180ea01
commit 09a180ea01
parent 8e3999c01a
11145 changed files with 938455 additions and 0 deletions
--- a/lib/fields.c
+++ b/lib/fields.c
@ -0,0 +1,100 @@
+/*
+ * SPDX-FileCopyrightText: 1990       , Julianne Frances Haugh
+ * SPDX-FileCopyrightText: 1996 - 1997, Marek Michałkiewicz
+ * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
+ * SPDX-FileCopyrightText: 2007       , Nicolas François
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <config.h>
+
+#ident "$Id$"
+
+#include <ctype.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "prototypes.h"
+#include "string/strcmp/streq.h"
+#include "string/strspn/stpspn.h"
+#include "string/strspn/stprspn.h"
+#include "string/strtok/stpsep.h"
+
+
+/*
+ * valid_field - insure that a field contains all legal characters
+ *
+ * The supplied field is scanned for non-printable and other illegal
+ * characters.
+ *  + -1 is returned if an illegal or control character is present.
+ *  +  1 is returned if no illegal or control characters are present,
+ *       but the field contains a non-printable character.
+ *  +  0 is returned otherwise.
+ */
+int valid_field (const char *field, const char *illegal)
+{
+	const char *cp;
+	int err = 0;
+
+	if (NULL == field) {
+		return -1;
+	}
+
+	/* For each character of field, search if it appears in the list
+	 * of illegal characters. */
+	if (illegal && NULL != strpbrk (field, illegal)) {
+		return -1;
+	}
+
+	/* Search if there are non-printable or control characters */
+	for (cp = field; !streq(cp, ""); cp++) {
+		unsigned char c = *cp;
+		if (!isprint (c)) {
+			err = 1;
+		}
+		if (iscntrl (c)) {
+			err = -1;
+			break;
+		}
+	}
+
+	return err;
+}
+
+/*
+ * change_field - change a single field if a new value is given.
+ *
+ * prompt the user with the name of the field being changed and the
+ * current value.
+ */
+void
+change_field(char *buf, size_t maxsize, const char *prompt)
+{
+	char newf[200];
+	char *cp;
+
+	if (maxsize > sizeof (newf)) {
+		maxsize = sizeof (newf);
+	}
+
+	printf ("\t%s [%s]: ", prompt, buf);
+	(void) fflush (stdout);
+	if (fgets (newf, maxsize, stdin) != newf) {
+		return;
+	}
+
+	if (stpsep(newf, "\n") == NULL)
+		return;
+
+	if (!streq(newf, "")) {
+		/*
+		 * Remove leading and trailing whitespace.  This also
+		 * makes it possible to change the field to empty, by
+		 * entering a space.  --marekm
+		 */
+		stpcpy(stprspn(newf, " \t"), "");
+		cp = stpspn(newf, " \t");
+		strcpy (buf, cp);
+	}
+}