mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-21 22:53:37 +00:00
347e875911
These were added for GCC 11. The problem has been fixed in GCC 12.
On macOS (clang) these produced errors like this:
tsk.c:75:32: error: unknown warning group '-Wanalyzer-file-leak', ignored [-Werror,-Wunknown-warning-option]
^
133 lines
3.9 KiB
C
133 lines
3.9 KiB
C
/* libguestfs
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* Copyright (C) 2016 Red Hat Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <string.h>
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include "guestfs.h"
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#include "guestfs_protocol.h"
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#include "guestfs-internal.h"
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#include "guestfs-internal-all.h"
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#include "guestfs-internal-actions.h"
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static struct guestfs_yara_detection_list *parse_yara_detection_file (guestfs_h *, const char *);
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static int deserialise_yara_detection_list (guestfs_h *, FILE *, struct guestfs_yara_detection_list *);
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struct guestfs_yara_detection_list *
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guestfs_impl_yara_scan (guestfs_h *g, const char *path)
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{
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int r;
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CLEANUP_UNLINK_FREE char *tmpfile = NULL;
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tmpfile = guestfs_int_make_temp_path (g, "yara_scan", NULL);
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if (tmpfile == NULL)
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return NULL;
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r = guestfs_internal_yara_scan (g, path, tmpfile);
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if (r == -1)
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return NULL;
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return parse_yara_detection_file (g, tmpfile); /* caller frees */
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}
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/* Parse the file content and return detections list.
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* Return a list of yara_detection on success, NULL on error.
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*/
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static struct guestfs_yara_detection_list *
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parse_yara_detection_file (guestfs_h *g, const char *tmpfile)
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{
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int r;
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CLEANUP_FCLOSE FILE *fp = NULL;
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struct guestfs_yara_detection_list *detections = NULL;
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fp = fopen (tmpfile, "r");
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if (fp == NULL) {
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perrorf (g, "fopen: %s", tmpfile);
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return NULL;
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}
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/* Initialise results array. */
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detections = safe_malloc (g, sizeof (*detections));
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detections->len = 8;
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detections->val = safe_malloc (g, detections->len *
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sizeof (*detections->val));
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/* Deserialise buffer into detection list. */
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r = deserialise_yara_detection_list (g, fp, detections);
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if (r == -1) {
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guestfs_free_yara_detection_list (detections);
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perrorf (g, "deserialise_yara_detection_list");
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return NULL;
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}
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return detections;
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}
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/* Deserialise the file content and populate the detection list.
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* Return the number of deserialised detections, -1 on error.
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*/
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static int
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deserialise_yara_detection_list (guestfs_h *g, FILE *fp,
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struct guestfs_yara_detection_list *detections)
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{
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int r;
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XDR xdr;
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uint32_t index;
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struct stat statbuf;
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r = fstat (fileno(fp), &statbuf);
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if (r == -1) {
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perrorf (g, "fstat");
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return -1;
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}
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xdrstdio_create (&xdr, fp, XDR_DECODE);
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for (index = 0; xdr_getpos (&xdr) < statbuf.st_size; index++) {
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if (index == detections->len) {
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detections->len = 2 * detections->len;
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detections->val = safe_realloc (g, detections->val,
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detections->len *
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sizeof (*detections->val));
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}
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/* Clear the entry so xdr logic will allocate necessary memory. */
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memset (&detections->val[index], 0, sizeof (*detections->val));
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r = xdr_guestfs_int_yara_detection (&xdr, (guestfs_int_yara_detection *)
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&detections->val[index]);
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if (r == 0) {
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perrorf (g, "xdr_guestfs_int_yara_detection");
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break;
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}
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}
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xdr_destroy (&xdr);
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detections->len = index;
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return r ? 0 : -1;
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}
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