05b43fc5af
It really shouldn't free the comment passed to it, as the caller allocated it, and knows how to free it if necessary; it might not even have been allocated. Make the comment argument a "const char *" to 1) allow passing string constants etc. and 2) to catch any attempts to free it in exp_pdu_open(). Make the callers free it after exp_pdu_open() returns. (Alternatively, we could have exp_pdu_open() take the file name argument and generate the comment itself, so that all code paths generate the same comment.) Change-Id: I6e6924b05565761b641a6c3b4d9a2e97f4264e1b Ping-Bug: 15365 Reviewed-on: https://code.wireshark.org/review/31105 Reviewed-by: Guy Harris <guy@alum.mit.edu>
116 lines
3 KiB
C
116 lines
3 KiB
C
/*
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* export_pdu_ui_utils.c
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* Routines for exported_pdu dissection
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* Copyright 2013, Anders Broman <anders-broman@ericsson.com>
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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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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include "globals.h"
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#include "wiretap/pcap-encap.h"
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#include "wsutil/os_version_info.h"
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#include "wsutil/tempfile.h"
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#include "version_info.h"
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#include <epan/tap.h>
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#include <epan/exported_pdu.h>
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#include <epan/epan_dissect.h>
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#include <wiretap/wtap.h>
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#include <wiretap/wtap_opttypes.h>
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#include <wiretap/pcapng.h>
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#include "ui/alert_box.h"
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#include "ui/simple_dialog.h"
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#include "tap_export_pdu.h"
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#include "export_pdu_ui_utils.h"
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static void
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exp_pdu_file_open(exp_pdu_t *exp_pdu_tap_data)
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{
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int import_file_fd;
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char *tmpname, *capfile_name, *comment;
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int err;
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/* Choose a random name for the temporary import buffer */
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import_file_fd = create_tempfile(&tmpname, "Wireshark_PDU_", NULL);
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capfile_name = g_strdup(tmpname);
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comment = g_strdup_printf("Dump of PDUs from %s", cfile.filename);
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err = exp_pdu_open(exp_pdu_tap_data, import_file_fd, comment);
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g_free(comment);
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if (err != 0) {
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cfile_dump_open_failure_alert_box(capfile_name ? capfile_name : "temporary file",
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err, WTAP_FILE_TYPE_SUBTYPE_PCAPNG);
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goto end;
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}
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/* Run the tap */
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cf_retap_packets(&cfile);
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err = exp_pdu_close(exp_pdu_tap_data);
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if (err!= 0) {
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cfile_close_failure_alert_box(capfile_name, err);
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}
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/* XXX: should this use the open_routine type in the cfile instead of WTAP_TYPE_AUTO? */
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if (cf_open(&cfile, capfile_name, WTAP_TYPE_AUTO, TRUE /* temporary file */, &err) != CF_OK) {
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/* cf_open() has put up a dialog box for the error */
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goto end;
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}
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switch (cf_read(&cfile, FALSE)) {
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case CF_READ_OK:
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case CF_READ_ERROR:
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/* Just because we got an error, that doesn't mean we were unable
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to read any of the file; we handle what we could get from the
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file. */
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break;
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case CF_READ_ABORTED:
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/* The user bailed out of re-reading the capture file; the
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capture file has been closed - just free the capture file name
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string and return (without changing the last containing
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directory). */
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break;
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}
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end:
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g_free(capfile_name);
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}
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gboolean
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do_export_pdu(const char *filter, const gchar *tap_name, exp_pdu_t *exp_pdu_tap_data)
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{
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char *error;
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error = exp_pdu_pre_open(tap_name, filter, exp_pdu_tap_data);
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if (error) {
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/* Error. We failed to attach to the tap. Clean up */
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", error);
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g_free(error);
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return FALSE;
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}
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exp_pdu_file_open(exp_pdu_tap_data);
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return TRUE;
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}
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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