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/*
* 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>
#include "fields.h"
#include <ctype.h>
#include <string.h>
#include <stdio.h>
#include "prototypes.h"
#include "string/ctype/strisascii/strisprint.h"
#include "string/ctype/strchrisascii/strchriscntrl.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
*
* Return:
* -1 Illegal or control characters are present.
* 1 Non-ASCII characters are present.
* 0 All chatacters are legal and ASCII.
*/
int
valid_field_(const char *field, const char *illegal)
{
if (NULL == field)
return -1;
if (strpbrk(field, illegal))
return -1;
if (strchriscntrl(field))
return -1;
if (strisprint(field))
return 0;
if (streq(field, ""))
return 0;
return 1; // !ASCII
}
/*
* 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);
}
}
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