diff options
Diffstat (limited to 'app/utils.cpp')
| -rw-r--r-- | app/utils.cpp | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/app/utils.cpp b/app/utils.cpp index 1cf71f2..45fd4d7 100644 --- a/app/utils.cpp +++ b/app/utils.cpp @@ -156,7 +156,7 @@ os_create_anonymous_file(off_t size) } const char* -get_camera_device(void) +get_first_camera_device(void) { DIR *dir = opendir("/dev"); if (!dir) { @@ -165,20 +165,22 @@ get_camera_device(void) } static char device[PATH_MAX]; + struct dirent *dirent; bool found = false; - while (struct dirent *dirent = readdir(dir)) { - if (strncmp(dirent->d_name, "video", strlen("video"))) + while ((dirent = readdir(dir)) != NULL) { + struct v4l2_capability vid_cap; + int fd; + + if (strcmp(dirent->d_name, "video")) continue; - if (!isdigit(dirent->d_name[strlen("video")])) + if (!isdigit(dirent->d_name[5])) continue; - strcpy(device, "/dev/"); - strncat(device, dirent->d_name, sizeof(device) - 1); + snprintf(device, sizeof(device), "/dev/%s", dirent->d_name); - int fd = open(device, O_RDWR); + fd = open(device, O_RDWR); if (fd == -1) continue; - struct v4l2_capability vid_cap; if (ioctl(fd, VIDIOC_QUERYCAP, &vid_cap) < 0) { close(fd); continue; |