X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=parse.c;h=745056bdc8186e54743d2fb688df926084c91853;hb=refs%2Ftags%2Ffio-2.2.9;hp=e70ed20bda7e64b3727e93cacad71de65148862b;hpb=1d31d1bcffe0b282aaadca12dc83d2dd671b84f2;p=fio.git

diff --git a/parse.c b/parse.c
index e70ed20b..745056bd 100644
--- a/parse.c
+++ b/parse.c
@@ -17,6 +17,7 @@
 #include "options.h"
 #include "minmax.h"
 #include "lib/ieee754.h"
+#include "lib/pow2.h"
 
 #ifdef CONFIG_ARITHMETIC
 #include "y.tab.h"
@@ -506,6 +507,7 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 		if (!is_time && o->is_time)
 			is_time = o->is_time;
 
+		tmp[sizeof(tmp) - 1] = '\0';
 		strncpy(tmp, ptr, sizeof(tmp) - 1);
 		p = strchr(tmp, ',');
 		if (p)
@@ -520,6 +522,10 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 
 		if (ret)
 			break;
+		if (o->pow2 && !is_power_of_2(ull)) {
+			log_err("%s: must be a power-of-2\n", o->name);
+			return 1;
+		}
 
 		if (o->maxval && ull > o->maxval) {
 			log_err("max value out of range: %llu"
@@ -705,6 +711,7 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 		char tmp[128];
 		char *p1, *p2;
 
+		tmp[sizeof(tmp) - 1] = '\0';
 		strncpy(tmp, ptr, sizeof(tmp) - 1);
 
 		/* Handle bsrange with separate read,write values: */