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suricata/rust/src/mime/detect.rs

44 lines
1.4 KiB
Rust

/* Copyright (C) 2025 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* 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
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
use super::mime;
use super::smtp::MimeStateSMTP;
use std::ffi::CStr;
use std::ptr;
#[no_mangle]
pub unsafe extern "C" fn SCDetectMimeEmailGetData(
ctx: &MimeStateSMTP, buffer: *mut *const u8, buffer_len: *mut u32,
hname: *const std::os::raw::c_char,
) -> u8 {
let c_str = CStr::from_ptr(hname); //unsafe
let str = c_str.to_str().unwrap_or("");
for h in &ctx.headers[..ctx.main_headers_nb] {
if mime::slice_equals_lowercase(&h.name, str.as_bytes()) {
*buffer = h.value.as_ptr();
*buffer_len = h.value.len() as u32;
return 1;
}
}
*buffer = ptr::null();
*buffer_len = 0;
return 0;
}