forked from osmocom/wireshark
ecb4dc396e
Change-Id: Ia394071710ecda3b0e6686a51fbca45a8ff20317 Reviewed-on: https://code.wireshark.org/review/14749 Petri-Dish: João Valverde <j@v6e.pt> Petri-Dish: Gerald Combs <gerald@wireshark.org> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: João Valverde <j@v6e.pt>
201 lines
5.2 KiB
C
201 lines
5.2 KiB
C
/* str_util.c
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* String utility routines
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include "str_util.h"
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int
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ws_xton(char ch)
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{
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switch (ch) {
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case '0': return 0;
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case '1': return 1;
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case '2': return 2;
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case '3': return 3;
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case '4': return 4;
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case '5': return 5;
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case '6': return 6;
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case '7': return 7;
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case '8': return 8;
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case '9': return 9;
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case 'a': case 'A': return 10;
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case 'b': case 'B': return 11;
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case 'c': case 'C': return 12;
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case 'd': case 'D': return 13;
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case 'e': case 'E': return 14;
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case 'f': case 'F': return 15;
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default: return -1;
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}
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}
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/* Convert all ASCII letters to lower case, in place. */
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gchar *
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ascii_strdown_inplace(gchar *str)
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{
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gchar *s;
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for (s = str; *s; s++)
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/* What 'g_ascii_tolower (gchar c)' does, this should be slightly more efficient */
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*s = g_ascii_isupper (*s) ? *s - 'A' + 'a' : *s;
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return (str);
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}
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/* Convert all ASCII letters to upper case, in place. */
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gchar *
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ascii_strup_inplace(gchar *str)
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{
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gchar *s;
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for (s = str; *s; s++)
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/* What 'g_ascii_toupper (gchar c)' does, this should be slightly more efficient */
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*s = g_ascii_islower (*s) ? *s - 'a' + 'A' : *s;
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return (str);
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}
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/* Check if an entire string is printable. */
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gboolean
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isprint_string(const gchar *str)
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{
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guint pos;
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/* Loop until we reach the end of the string (a null) */
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for(pos = 0; str[pos] != '\0'; pos++){
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if(!g_ascii_isprint(str[pos])){
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/* The string contains a non-printable character */
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return FALSE;
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}
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}
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/* The string contains only printable characters */
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return TRUE;
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}
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/* Check if an entire string is digits. */
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gboolean
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isdigit_string(guchar *str)
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{
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guint pos;
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/* Loop until we reach the end of the string (a null) */
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for(pos = 0; str[pos] != '\0'; pos++){
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if(!g_ascii_isdigit(str[pos])){
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/* The string contains a non-digit character */
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return FALSE;
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}
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}
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/* The string contains only digits */
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return TRUE;
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}
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#define FORMAT_SIZE_UNIT_MASK 0x00ff
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#define FORMAT_SIZE_PFX_MASK 0xff00
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#ifdef HAVE_GLIB_PRINTF_GROUPING
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#define GROUP_FLAG "'"
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#else
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#define GROUP_FLAG ""
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#endif
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/* Given a size, return its value in a human-readable format */
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/* This doesn't handle fractional values. We might want to make size a double. */
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gchar *
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format_size(gint64 size, format_size_flags_e flags)
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{
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GString *human_str = g_string_new("");
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int power = 1000;
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int pfx_off = 0;
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gboolean is_small = FALSE;
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static const gchar *prefix[] = {"T", "G", "M", "k", "Ti", "Gi", "Mi", "Ki"};
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gchar *ret_val;
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if ((flags & FORMAT_SIZE_PFX_MASK) == format_size_prefix_iec) {
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pfx_off = 4;
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power = 1024;
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}
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DIAG_OFF(format)
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if (size / power / power / power / power >= 10) {
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g_string_printf(human_str, "%" GROUP_FLAG G_GINT64_MODIFIER "d %s", size / power / power / power / power, prefix[pfx_off]);
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} else if (size / power / power / power >= 10) {
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g_string_printf(human_str, "%" GROUP_FLAG G_GINT64_MODIFIER "d %s", size / power / power / power, prefix[pfx_off+1]);
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} else if (size / power / power >= 10) {
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g_string_printf(human_str, "%" GROUP_FLAG G_GINT64_MODIFIER "d %s", size / power / power, prefix[pfx_off+2]);
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} else if (size / power >= 10) {
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g_string_printf(human_str, "%" GROUP_FLAG G_GINT64_MODIFIER "d %s", size / power, prefix[pfx_off+3]);
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} else {
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g_string_printf(human_str, "%" GROUP_FLAG G_GINT64_MODIFIER "d", size);
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is_small = TRUE;
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}
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DIAG_ON(format)
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switch (flags & FORMAT_SIZE_UNIT_MASK) {
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case format_size_unit_none:
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break;
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case format_size_unit_bytes:
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g_string_append(human_str, is_small ? " bytes" : "B");
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break;
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case format_size_unit_bits:
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g_string_append(human_str, is_small ? " bits" : "b");
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break;
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case format_size_unit_bits_s:
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g_string_append(human_str, is_small ? " bits/s" : "bps");
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break;
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case format_size_unit_bytes_s:
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g_string_append(human_str, is_small ? " bytes/s" : "Bps");
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break;
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case format_size_unit_packets:
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g_string_append(human_str, is_small ? " packets" : "packets");
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break;
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case format_size_unit_packets_s:
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g_string_append(human_str, is_small ? " packets/s" : "packets/s");
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break;
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default:
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g_assert_not_reached();
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}
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ret_val = g_string_free(human_str, FALSE);
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return g_strchomp(ret_val);
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}
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gchar
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printable_char_or_period(gchar c)
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{
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return g_ascii_isprint(c) ? c : '.';
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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