On Thu 25 July 2013 15:09:33 Gregor Jasny wrote:
> Detected by Coverity.
>
> Signed-off-by: Gregor Jasny <gja...@googlemail.com>
> CC: Hans Verkuil <hverk...@xs4all.nl>
Reviewed-by: Hans Verkuil <hans.verk...@cisco.com>
Thanks!
Hans
> ---
> utils/rds-ctl/rds-ctl.cpp | 14 +++++++-------
> 1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/utils/rds-ctl/rds-ctl.cpp b/utils/rds-ctl/rds-ctl.cpp
> index a9fe2a8..74972eb 100644
> --- a/utils/rds-ctl/rds-ctl.cpp
> +++ b/utils/rds-ctl/rds-ctl.cpp
> @@ -762,13 +762,11 @@ static int parse_cl(int argc, char **argv)
> params.options[(int)opt] = 1;
> switch (opt) {
> case OptSetDevice:
> - strncpy(params.fd_name, optarg, 80);
> + strncpy(params.fd_name, optarg, sizeof(params.fd_name));
> if (optarg[0] >= '0' && optarg[0] <= '9' &&
> strlen(optarg) <= 3) {
> - static char newdev[20];
> -
> - sprintf(newdev, "/dev/radio%s", optarg);
> - strncpy(params.fd_name, newdev, 20);
> + snprintf(params.fd_name,
> sizeof(params.fd_name), "/dev/radio%s", optarg);
> }
> + params.fd_name[sizeof(params.fd_name) - 1] = '\0';
> break;
> case OptSetFreq:
> params.freq = strtod(optarg, NULL);
> @@ -786,7 +784,8 @@ static int parse_cl(int argc, char **argv)
> {
> if (access(optarg, F_OK) != -1) {
> params.filemode_active = true;
> - strncpy(params.fd_name, optarg, 80);
> + strncpy(params.fd_name, optarg,
> sizeof(params.fd_name));
> + params.fd_name[sizeof(params.fd_name) - 1] =
> '\0';
> } else {
> fprintf(stderr, "Unable to open file: %s\n",
> optarg);
> return -1;
> @@ -1006,7 +1005,8 @@ int main(int argc, char **argv)
> fprintf(stderr, "No RDS-capable device found\n");
> exit(1);
> }
> - strncpy(params.fd_name, devices[0].c_str(), 80);
> + strncpy(params.fd_name, devices[0].c_str(),
> sizeof(params.fd_name));
> + params.fd_name[sizeof(params.fd_name) - 1] = '\0';
> printf("Using device: %s\n", params.fd_name);
> }
> if ((fd = test_open(params.fd_name, O_RDONLY | O_NONBLOCK)) < 0) {
>
--
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