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/* tempfile.c
* Routines to create temporary files
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <glib.h>
#include "tempfile.h"
/**
* Create a tempfile with the given prefix (e.g. "wireshark"). The path
* is created using g_file_open_tmp.
*
* @param namebuf [in,out] If not NULL, receives the full path of the temp file.
* Must be freed.
* @param pfx [in] A prefix for the temporary file.
* @param sfx [in] A file extension for the temporary file. NULL can be passed
* if no file extension is needed
* @param err [out] Any error returned by g_file_open_tmp. May be NULL
* @return The file descriptor of the new tempfile, from mkstemps().
*/
int
create_tempfile(gchar **namebuf, const char *pfx, const char *sfx, GError **err)
{
int fd;
gchar *safe_pfx = NULL;
if (pfx) {
/* The characters in "delimiters" come from:
* https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions.
* Add to the list as necessary for other OS's.
*/
const gchar *delimiters = "<>:\"/\\|?*"
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a"
"\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14"
"\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f";
/* Sanitize the pfx to resolve bug 7877 */
safe_pfx = g_strdup(pfx);
safe_pfx = g_strdelimit(safe_pfx, delimiters, '-');
}
gchar* filetmpl = g_strdup_printf("%sXXXXXX%s", safe_pfx ? safe_pfx : "", sfx ? sfx : "");
g_free(safe_pfx);
fd = g_file_open_tmp(filetmpl, namebuf, err);
g_free(filetmpl);
return fd;
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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