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-rw-r--r--tools/lib/subcmd/parse-options.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/lib/subcmd/parse-options.c b/tools/lib/subcmd/parse-options.c
index 8aad81151d50..359bfa77f39c 100644
--- a/tools/lib/subcmd/parse-options.c
+++ b/tools/lib/subcmd/parse-options.c
@@ -1,4 +1,5 @@
#include <linux/compiler.h>
+#include <linux/string.h>
#include <linux/types.h>
#include <stdio.h>
#include <stdlib.h>
@@ -270,6 +271,8 @@ static int get_value(struct parse_opt_ctx_t *p,
}
if (get_arg(p, opt, flags, &arg))
return -1;
+ if (arg[0] == '-')
+ return opterror(opt, "expects an unsigned numerical value", flags);
*(unsigned int *)opt->value = strtol(arg, (char **)&s, 10);
if (*s)
return opterror(opt, "expects a numerical value", flags);
@@ -302,6 +305,8 @@ static int get_value(struct parse_opt_ctx_t *p,
}
if (get_arg(p, opt, flags, &arg))
return -1;
+ if (arg[0] == '-')
+ return opterror(opt, "expects an unsigned numerical value", flags);
*(u64 *)opt->value = strtoull(arg, (char **)&s, 10);
if (*s)
return opterror(opt, "expects a numerical value", flags);
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