forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
Cast away some implicit 64-bit-to-32-bit conversion errors due to use of sizeof. Cast away some implicit 64-bit-to-32-bit conversion errors due to use of strtol() and strtoul(). Change some data types to avoid those implicit conversion warnings. When assigning a constant to a float, make sure the constant isn't a double, by appending "f" to the constant. Constify a bunch of variables, parameters, and return values to eliminate warnings due to strings being given const qualifiers. Cast away those warnings in some cases where an API we don't control forces us to do so. Enable a bunch of additional warnings by default. Note why at least some of the other warnings aren't enabled. randpkt.c and text2pcap.c are used to build programs, so they don't need to be in EXTRA_DIST. If the user specifies --enable-warnings-as-errors, add -Werror *even if the user specified --enable-extra-gcc-flags; assume they know what they're doing and are willing to have the compile fail due to the extra GCC warnings being treated as errors. svn path=/trunk/; revision=46748
202 lines
3.8 KiB
C
202 lines
3.8 KiB
C
/* u3.c
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* u3 2006 Graeme Lunt
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*
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* $Id$
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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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/*
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* Indentation logic: 2-space
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#ifdef _WIN32
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#include <process.h> /* getpid */
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#endif
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#include <wsutil/file_util.h>
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#include <epan/filesystem.h>
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#include "u3.h"
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#define U3_DEVICE_PATH_VAR "$U3_DEVICE_PATH"
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static char *pid_file = NULL;
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static char *u3devicepath = (char*)-1;
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static gchar *newpath = NULL;
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static const char *u3_change_path(const char *path, const char *old, const char *new);
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gboolean u3_active(void)
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{
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return (
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#ifdef _WIN32
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getenv_utf8
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#else
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getenv
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#endif
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("U3_HOST_EXEC_PATH") != NULL);
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}
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void u3_runtime_info(GString *str)
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{
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char *u3devicepath_lcl = NULL;
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char *u3deviceproduct = NULL;
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if((u3deviceproduct =
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#ifdef _WIN32
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getenv_utf8
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#else
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getenv
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#endif
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("U3_DEVICE_PRODUCT")) != NULL) {
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g_string_append(str, " from the ");
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g_string_append(str, u3deviceproduct);
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} else {
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g_string_append(str, " from a ");
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}
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g_string_append(str, " U3 device");
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if((u3devicepath_lcl =
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#ifdef _WIN32
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getenv_utf8
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#else
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getenv
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#endif
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("U3_DEVICE_PATH")) != NULL) {
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g_string_append(str, " in drive ");
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g_string_append(str, u3devicepath_lcl);
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}
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}
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void u3_register_pid(void)
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{
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int pid;
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int pid_fd;
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char *u3hostexecpath;
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int pf_size;
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if((u3hostexecpath =
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#ifdef _WIN32
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getenv_utf8
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#else
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getenv
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#endif
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("U3_HOST_EXEC_PATH")) != NULL) {
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pid = getpid();
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pf_size = (int) strlen(u3hostexecpath) + 32;
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pid_file = g_malloc(pf_size);
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g_snprintf(pid_file, pf_size, "%s\\%d.pid", u3hostexecpath, pid);
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pid_fd = ws_open(pid_file, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
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if(pid_fd != -1)
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ws_close(pid_fd);
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else {
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g_free(pid_file);
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pid_file = NULL;
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}
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}
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}
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void u3_deregister_pid(void)
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{
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if(pid_file) {
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/* we don't care if we succeed or fail - u3utils may have deleted the file */
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ws_unlink(pid_file);
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g_free(pid_file);
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pid_file = NULL;
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}
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}
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const char *u3_expand_device_path(const char *path)
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{
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return u3_change_path(path, U3_DEVICE_PATH_VAR, NULL);
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}
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const char *u3_contract_device_path(char *path)
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{
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return u3_change_path(path, NULL, U3_DEVICE_PATH_VAR);
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}
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static const char *u3_change_path(const char *path, const char *old, const char *new)
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{
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if(u3devicepath == (char*)-1) {
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/* cache the device path */
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u3devicepath =
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#ifdef _WIN32
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getenv_utf8
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#else
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getenv
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#endif
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("U3_DEVICE_PATH");
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}
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if(new == NULL)
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new = u3devicepath;
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if(old == NULL)
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old = u3devicepath;
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if(newpath != NULL) {
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g_free(newpath);
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newpath = NULL;
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}
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if((path != NULL) && (u3devicepath != NULL) && (strncmp(path, old, strlen(old)) == 0)) {
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newpath = g_strconcat(new, path + strlen(old), NULL);
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return newpath;
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}
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return path;
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}
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