diff options
author | Gerald Combs <gerald@wireshark.org> | 2013-10-29 04:05:27 +0000 |
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committer | Gerald Combs <gerald@wireshark.org> | 2013-10-29 04:05:27 +0000 |
commit | ba49d9bcf01a597ebec66c3d65c4813ebf174806 (patch) | |
tree | 24a8dc06b7825a9b8d252a148eeb0809d75201e6 /wsutil/u3.c | |
parent | 58d01512b16728b357b2f6481c592a71c7ab8435 (diff) |
Revert part of 52896 and (for now) all of 52935. As Jeff pointed out,
the PortableApps version relies on U3_-prefixed environment variables.
svn path=/trunk/; revision=52941
Diffstat (limited to 'wsutil/u3.c')
-rw-r--r-- | wsutil/u3.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/wsutil/u3.c b/wsutil/u3.c new file mode 100644 index 0000000000..217d9f3bac --- /dev/null +++ b/wsutil/u3.c @@ -0,0 +1,199 @@ +/* u3.c + * u3 2006 Graeme Lunt + * + * $Id$ + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +/* + * Indentation logic: 2-space + */ + + +#include "config.h" + +#include <stdlib.h> +#include <string.h> + +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +#ifdef HAVE_FCNTL_H +#include <fcntl.h> +#endif + +#ifdef _WIN32 +#include <process.h> /* getpid */ +#endif + +#include <wsutil/file_util.h> + +#include "u3.h" + + +#define U3_DEVICE_PATH_VAR "$U3_DEVICE_PATH" + +static char *pid_file = NULL; +static char *u3devicepath = (char*)-1; +static gchar *newpath = NULL; + +static const char *u3_change_path(const char *path, const char *old, const char *new_u3devicepath); + +gboolean u3_active(void) +{ + + return ( +#ifdef _WIN32 + getenv_utf8 +#else + getenv +#endif + ("U3_HOST_EXEC_PATH") != NULL); + +} + +void u3_runtime_info(GString *str) +{ + + char *u3devicepath_lcl = NULL; + char *u3deviceproduct = NULL; + + if((u3deviceproduct = +#ifdef _WIN32 + getenv_utf8 +#else + getenv +#endif + ("U3_DEVICE_PRODUCT")) != NULL) { + g_string_append(str, " from the "); + g_string_append(str, u3deviceproduct); + } else { + g_string_append(str, " from a "); + } + + g_string_append(str, " U3 device"); + + if((u3devicepath_lcl = +#ifdef _WIN32 + getenv_utf8 +#else + getenv +#endif + ("U3_DEVICE_PATH")) != NULL) { + g_string_append(str, " in drive "); + g_string_append(str, u3devicepath_lcl); + } + +} + +void u3_register_pid(void) +{ + int pid; + int pid_fd; + char *u3hostexecpath; + int pf_size; + + if((u3hostexecpath = +#ifdef _WIN32 + getenv_utf8 +#else + getenv +#endif + ("U3_HOST_EXEC_PATH")) != NULL) { + + pid = getpid(); + + pf_size = (int) strlen(u3hostexecpath) + 32; + pid_file = (char *)g_malloc(pf_size); + + g_snprintf(pid_file, pf_size, "%s\\%d.pid", u3hostexecpath, pid); + + pid_fd = ws_open(pid_file, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644); + + if(pid_fd != -1) + ws_close(pid_fd); + else { + g_free(pid_file); + pid_file = NULL; + } + } +} + + +void u3_deregister_pid(void) +{ + if(pid_file) { + /* we don't care if we succeed or fail - u3utils may have deleted the file */ + ws_unlink(pid_file); + + g_free(pid_file); + + pid_file = NULL; + + } +} + +const char *u3_expand_device_path(const char *path) +{ + return u3_change_path(path, U3_DEVICE_PATH_VAR, NULL); +} + + +const char *u3_contract_device_path(char *path) +{ + return u3_change_path(path, NULL, U3_DEVICE_PATH_VAR); +} + +static const char *u3_change_path(const char *path, const char *old, const char *new_u3devicepath) +{ + + if(u3devicepath == (char*)-1) { + /* cache the device path */ + u3devicepath = +#ifdef _WIN32 + getenv_utf8 +#else + getenv +#endif + ("U3_DEVICE_PATH"); + } + + if(new_u3devicepath == NULL) + new_u3devicepath = u3devicepath; + if(old == NULL) + old = u3devicepath; + + if(newpath != NULL) { + g_free(newpath); + newpath = NULL; + } + + if((path != NULL) && (u3devicepath != NULL) && (strncmp(path, old, strlen(old)) == 0)) { + + newpath = g_strconcat(new_u3devicepath, path + strlen(old), NULL); + + return newpath; + + } + + return path; + +} |