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/* str_util.c
* String utility routines
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* 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
* of the License, 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include "str_util.h"
#include <ctype.h>
/* Convert all ASCII letters to lower case, in place. */
gchar *
ascii_strdown_inplace(gchar *str)
{
gchar *s;
for (s = str; *s; s++)
*s = g_ascii_tolower (*s);
return (str);
}
/* Convert all ASCII letters to upper case, in place. */
gchar *
ascii_strup_inplace(gchar *str)
{
gchar *s;
for (s = str; *s; s++)
*s = g_ascii_toupper (*s);
return (str);
}
/* Check if an entire string is printable. */
gboolean
isprint_string(guchar *str)
{
guint pos;
/* Loop until we reach the end of the string (a null) */
for(pos = 0; str[pos] != '\0'; pos++){
if(!isprint(str[pos])){
/* The string contains a non-printable character */
return FALSE;
}
}
/* The string contains only printable characters */
return TRUE;
}
/* Check if an entire string is digits. */
gboolean
isdigit_string(guchar *str)
{
guint pos;
/* Loop until we reach the end of the string (a null) */
for(pos = 0; str[pos] != '\0'; pos++){
if(!isdigit(str[pos])){
/* The string contains a non-digit character */
return FALSE;
}
}
/* The string contains only digits */
return TRUE;
}
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