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authorMarcus Meissner <marcus@jet.franken.de>2021-09-27 13:48:44 +0200
committerMarcus Meissner <marcus@jet.franken.de>2021-09-27 13:48:44 +0200
commite9548fd45efe88939a37049c3f14cb2f7f966e83 (patch)
tree8540bbf483e15b0b6e21df7412f1132afca35749 /examples/sample-libfuzz.c
parent90a9daf60f2ebd5ae39d242cfef675c4e1a1d79f (diff)
downloadlibgphoto2-e9548fd45efe88939a37049c3f14cb2f7f966e83.tar.gz
added sample-libfuzz ... semi-uable for libfuzzer
Diffstat (limited to 'examples/sample-libfuzz.c')
-rw-r--r--examples/sample-libfuzz.c86
1 files changed, 48 insertions, 38 deletions
diff --git a/examples/sample-libfuzz.c b/examples/sample-libfuzz.c
index 056340636..59f35a617 100644
--- a/examples/sample-libfuzz.c
+++ b/examples/sample-libfuzz.c
@@ -15,8 +15,11 @@
void errordumper(GPLogLevel level, const char *domain, const char *str,
void *data) {
/* Do not log ... but let it appear here so we discover debug paths */
- fprintf(stderr, "%s:%s\n", domain, str);
+ //fprintf(stderr, "%s:%s\n", domain, str);
}
+void contexterror (GPContext *context, const char *text, void *data) {
+}
+
static int
recursive_directory(Camera *camera, const char *folder, GPContext *context, int *foundfile) {
@@ -130,18 +133,22 @@ recursive_directory(Camera *camera, const char *folder, GPContext *context, int
return GP_OK;
}
+
+static GPPortInfoList *gpinfolist = NULL;
+
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
- static int initialized = 0;
- Camera *camera = NULL;
+ int initialized = 0;
int ret, storagecnt;
+ Camera *camera = NULL;
CameraStorageInformation *storageinfo;
GPPortInfo pi;
- static GPPortInfoList *gpinfolist = NULL;
static GPContext *context = NULL;
char buf[200];
static const char *name;
- char tmpfn[200];
+ static const char *port;
+ char *xpath;
+ char tmpfn[200] = { 0 };
int fd;
CameraWidget *rootwidget;
@@ -149,41 +156,41 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
CameraFile *file;
/*CameraFilePath path;*/
CameraList *list;
- static CameraAbilitiesList *abilities = NULL;
gp_log_add_func(GP_LOG_DEBUG, errordumper, NULL);
- if (!initialized) {
- context = sample_create_context (); /* see context.c */
-
+ if (!gpinfolist) {
gp_port_info_list_new (&gpinfolist);
ret = gp_port_info_list_load (gpinfolist);
if (ret < GP_OK) return 0;
+ }
+ if (!context) {
+ context = sample_create_context (); /* see context.c */
+ gp_context_set_error_func (context, contexterror, NULL);
+ }
+ if (!initialized) {
/* Detect all the cameras that can be autodetected... */
ret = gp_list_new (&list);
if (ret < GP_OK) return 0;
- /* Load all the camera drivers we have... */
- ret = gp_abilities_list_new (&abilities);
- if (ret < GP_OK) return ret;
- ret = gp_abilities_list_load (abilities, context);
- if (ret < GP_OK) return ret;
- ret = gp_abilities_list_detect (abilities, gpinfolist, list, context);
- if (ret < GP_OK) return ret;
- /*fprintf(stderr, "detect list has count %d\n", gp_list_count(list));*/
+ gp_camera_autodetect (list, context);
+ //fprintf(stderr, "detect list has count %d\n", gp_list_count(list));
+ if (gp_list_count(list) < 1) goto out;
ret = gp_list_get_name(list, 0, &name);
if (ret < GP_OK) goto out;
- gp_list_free (list);
+ ret = gp_list_get_value(list, 0, &port);
+ if (ret < GP_OK) goto out;
+ /*gp_list_free (list);*/
+ //fprintf(stderr,"camera %s detected at port %s.\n", name, port);
- ret = sample_open_camera (&camera, name, "vusb:", context);
+ ret = sample_open_camera (&camera, name, port, context);
if (ret < GP_OK) {
- fprintf(stderr,"camera %s at %s not found.\n", name, buf);
+ fprintf(stderr,"camera %s not found.\n", name);
goto out;
}
-
initialized = 1;
}
/* code that runs all the time */
@@ -193,39 +200,42 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
write (fd, Data, Size);
close(fd);
- strcpy(buf,"vusb:");
- strcat(buf,tmpfn);
+ strcpy(buf,"vusb:"); strcat(buf,tmpfn);
- fprintf(stderr,"setting path %s.\n", buf);
+ //fprintf(stderr,"setting path %s.\n", buf);
- gp_camera_get_port_info (camera, &pi);
- gp_port_info_set_path (pi, buf);
- gp_camera_set_port_info (camera, pi);
+ ret = gp_port_info_list_lookup_path (gpinfolist, buf);
+ if (ret < GP_OK) goto out;
+ gp_port_info_list_get_info (gpinfolist, ret, &pi);
- ret = gp_camera_init (camera, context);
+ ret = gp_camera_set_port_info (camera, pi);
if (ret < GP_OK) {
- fprintf(stderr,"No camera auto detected.\n");
+ fprintf(stderr,"portinfo not set %d.\n", ret);
goto out;
}
- /* AFL PART STARTS HERE */
+ ret = gp_camera_init (camera, context);
+ if (ret < GP_OK) {
+ //fprintf(stderr,"Camera not initialized %d.\n", ret);
+ goto out;
+ }
ret = recursive_directory(camera, "/", context, NULL);
if (ret < GP_OK) {
- printf ("Could not recursive list files.\n");
+ //fprintf (stderr, "Could not recursive list files.\n");
goto out;
}
ret = gp_camera_get_summary (camera, &summary, context);
if ((ret != GP_OK) && (ret != GP_ERROR_NOT_SUPPORTED)) {
- printf ("Could not get summary.\n");
+ //fprintf (stderr, "Could not get summary.\n");
goto out;
}
#if 1
ret = gp_camera_get_config (camera, &rootwidget, context);
if (ret < GP_OK) {
- fprintf (stderr,"Could not get config.\n");
+ //fprintf (stderr,"Could not get config.\n");
goto out;
}
gp_widget_free (rootwidget);
@@ -234,14 +244,14 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
ret = gp_camera_get_storageinfo (camera, &storageinfo, &storagecnt, context);
if ((ret != GP_OK) && (ret != GP_ERROR_NOT_SUPPORTED)) {
- printf ("Could not get storage info.\n");
+ //fprintf (stderr, "Could not get storage info.\n");
goto out;
}
free(storageinfo);
ret = gp_camera_trigger_capture (camera, context);
if ((ret != GP_OK) && (ret != GP_ERROR_NOT_SUPPORTED)) {
- printf ("Could not trigger capture.\n");
+ //fprintf (stderr, "Could not trigger capture.\n");
goto out;
}
@@ -259,7 +269,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
ret = gp_camera_capture_preview (camera, file, context);
if ((ret != GP_OK) && (ret != GP_ERROR_NOT_SUPPORTED)) {
gp_file_free (file);
- printf ("Could not capture preview.\n");
+ //fprintf (stderr, "Could not capture preview.\n");
goto out;
}
gp_file_free (file);
@@ -275,9 +285,9 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
/* AFL PART ENDS HERE */
out:
- gp_camera_exit (camera, context);
+ if (camera) gp_camera_exit (camera, context);
/*gp_context_unref (context);*/
/*gp_camera_free (camera);*/
- unlink (tmpfn);
+ if (tmpfn[0]) unlink (tmpfn);
return 0;
}