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examples/vhost: check argument length

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Add args length check before copying to fix the coverity issue.

Coverity issue: 363741
Fixes: 3a04ecb21420 ("examples/vhost: add async vhost args parsing")

Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Cheng Jiang 2020-11-06 03:24:01 +00:00 committed by Ferruh Yigit
parent 7dd0d9f29f
commit 2b7126f5fc
1 changed files with 6 additions and 0 deletions
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6
examples/vhost/main.c
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@ -634,6 +634,12 @@ us_vhost_parse_args(int argc, char **argv)
if (!strncmp(long_option[option_index].name,
"dma-type", MAX_LONG_OPT_SZ)) {
if (strlen(optarg) >= MAX_LONG_OPT_SZ) {
RTE_LOG(INFO, VHOST_CONFIG,
"Wrong DMA type\n");
us_vhost_usage(prgname);
return -1;
}
strcpy(dma_type, optarg);
}