forked from osmocom/wireshark
123 lines
2.8 KiB
C
123 lines
2.8 KiB
C
/* strtoi.c
|
|
* Utilities to convert strings to integers
|
|
*
|
|
* Copyright 2016, Dario Lombardo
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "strtoi.h"
|
|
#include <errno.h>
|
|
|
|
gboolean ws_strtoi64(const gchar* str, gint64* cint)
|
|
{
|
|
gchar* endptr;
|
|
gint64 val;
|
|
|
|
errno = 0;
|
|
val = g_ascii_strtoll(str, &endptr, 10);
|
|
if ((val == 0 && endptr == str) || (*endptr != 0)) {
|
|
*cint = 0;
|
|
errno = EINVAL;
|
|
return FALSE;
|
|
}
|
|
if ((val == G_MAXINT64 || val == G_MININT64) && errno == ERANGE) {
|
|
*cint = 0;
|
|
/* errno is already set */
|
|
return FALSE;
|
|
}
|
|
*cint = val;
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean ws_strtou64(const gchar* str, guint64* cint)
|
|
{
|
|
gchar* endptr;
|
|
guint64 val;
|
|
|
|
errno = 0;
|
|
val = g_ascii_strtoull(str, &endptr, 10);
|
|
if ((val == 0 && endptr == str) || (*endptr != 0)) {
|
|
*cint = 0;
|
|
errno = EINVAL;
|
|
return FALSE;
|
|
}
|
|
if (val == G_MAXUINT64 && errno == ERANGE) {
|
|
*cint = 0;
|
|
return FALSE;
|
|
}
|
|
*cint = val;
|
|
return TRUE;
|
|
}
|
|
|
|
#define DEFINE_WS_STRTOI_BITS(bits) \
|
|
gboolean ws_strtoi##bits(const gchar* str, gint##bits* cint) \
|
|
{ \
|
|
gint64 val; \
|
|
if (!ws_strtoi64(str, &val)) { \
|
|
return FALSE; \
|
|
} \
|
|
if (val < G_MININT##bits || val > G_MAXINT##bits) { \
|
|
*cint = 0; \
|
|
errno = ERANGE; \
|
|
return FALSE; \
|
|
} \
|
|
*cint = (gint##bits)val; \
|
|
return TRUE; \
|
|
}
|
|
|
|
DEFINE_WS_STRTOI_BITS(32);
|
|
DEFINE_WS_STRTOI_BITS(16);
|
|
DEFINE_WS_STRTOI_BITS(8);
|
|
|
|
#define DEFINE_WS_STRTOU_BITS(bits) \
|
|
int ws_strtou##bits(const gchar* str, guint##bits* cint) \
|
|
{ \
|
|
guint64 val; \
|
|
if (!ws_strtou64(str, &val)) { \
|
|
return FALSE; \
|
|
} \
|
|
if (val > G_MAXUINT##bits) { \
|
|
*cint = 0; \
|
|
errno = ERANGE; \
|
|
return FALSE; \
|
|
} \
|
|
*cint = (guint##bits)val; \
|
|
return TRUE; \
|
|
}
|
|
|
|
DEFINE_WS_STRTOU_BITS(32);
|
|
DEFINE_WS_STRTOU_BITS(16);
|
|
DEFINE_WS_STRTOU_BITS(8);
|
|
|
|
/*
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 noexpandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=false:
|
|
*/
|