On Mon, Jun 12, 2017 at 11:38 PM, Vadim Kochan <vadi...@gmail.com> wrote:
> Trim output name to IFNAMSIZ only if the output is a networking device,
> otherwise the following error occured if output name is greater then
> IFNAMSIZ:
>
> ~/src/netsniff-ng$ trafgen -n 1 '{ udp() }' -o
> /tmp/xxxxxxxxxxxxxx.pcap
> No networking device or pcap file: /tmp/xxxxxxxxxx
> Failed to open output device
> ---
> trafgen.c | 2 +-
> trafgen_dev.c | 3 ++-
> 2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/trafgen.c b/trafgen.c
> index 6ae0076..b40d362 100644
> --- a/trafgen.c
> +++ b/trafgen.c
> @@ -1084,7 +1084,7 @@ int main(int argc, char **argv)
> break;
> case 'd':
> case 'o':
> - ctx.device = xstrndup(optarg, IFNAMSIZ);
> + ctx.device = xstrdup(optarg);
> break;
> case 'H':
> prio_high = true;
> diff --git a/trafgen_dev.c b/trafgen_dev.c
> index cd99a0c..bbe1be8 100644
> --- a/trafgen_dev.c
> +++ b/trafgen_dev.c
> @@ -174,8 +174,10 @@ struct dev_io *dev_io_open(const char *name, enum
> dev_io_mode_t mode)
> struct dev_io *dev = xzmalloc(sizeof(struct dev_io));
>
> if (strstr(name, ".pcap")) {
> + dev->name = xstrdup(name);
> dev->ops = &dev_pcap_ops;
> } else if (device_mtu(name) > 0) {
> + dev->name = xstrndup(optarg, IFNAMSIZ);
>
>>>>> Ooooopsssss, sorry ... too late for fixing ...
> dev->ops = &dev_net_ops;
> } else {
> fprintf(stderr, "No networking device or pcap file: %s\n",
> name);
> @@ -189,7 +191,6 @@ struct dev_io *dev_io_open(const char *name, enum
> dev_io_mode_t mode)
> }
> }
>
> - dev->name = xstrdup(name);
> return dev;
> };
>
> --
> 2.9.3
>
>
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