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app/test: fix sprintf with strlcat

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sprintf function is not secure as it doesn't check the length of string.
More secure function strlcat is used.

Fixes: 727909c592 ("app/test: introduce dynamic commands list")
Cc: stable@dpdk.org

Signed-off-by: Pallantla Poornima <pallantlax.poornima@intel.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
This commit is contained in:
Pallantla Poornima 2019-03-13 11:07:23 +00:00 committed by Thomas Monjalon
parent c12cefa379
commit 323643727f
1 changed files with 6 additions and 6 deletions
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12
app/test/commands.c
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@ -44,6 +44,7 @@
#include <cmdline_parse_num.h>
#include <cmdline_parse_string.h>
#include <cmdline.h>
#include <rte_string_fns.h>
#include "test.h"
@ -365,23 +366,22 @@ cmdline_parse_ctx_t main_ctx[] = {
int commands_init(void)
{
struct test_command *t;
char *commands, *ptr;
char *commands;
int commands_len = 0;
TAILQ_FOREACH(t, &commands_list, next) {
commands_len += strlen(t->command) + 1;
}
commands = malloc(commands_len + 1);
commands = (char *)calloc(commands_len, sizeof(char));
if (!commands)
return -1;
ptr = commands;
TAILQ_FOREACH(t, &commands_list, next) {
ptr += sprintf(ptr, "%s#", t->command);
strlcat(commands, t->command, commands_len);
if (TAILQ_NEXT(t, next) != NULL)
strlcat(commands, "#", commands_len);
}
ptr--;
ptr[0] = '\0';
cmd_autotest_autotest.string_data.str = commands;
return 0;