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-rw-r--r--trafgen.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/trafgen.c b/trafgen.c
index 6a6bd02..03a165e 100644
--- a/trafgen.c
+++ b/trafgen.c
@@ -128,6 +128,8 @@ struct icmp_filter {
};
#endif
+#define SMOKE_N_PROBES 100
+
static void signal_handler(int number)
{
switch (number) {
@@ -355,10 +357,10 @@ static struct cpu_stats *setup_shared_var(unsigned long cpus)
{
int fd;
size_t len = cpus * sizeof(struct cpu_stats);
- char zbuff[len], file[256];
+ char *zbuff, file[256];
struct cpu_stats *buff;
- fmemset(zbuff, 0, len);
+ zbuff = xzmalloc(len);
slprintf(file, sizeof(file), ".tmp_mmap.%u", (unsigned int) rand());
fd = creat(file, S_IRUSR | S_IWUSR);
@@ -368,6 +370,7 @@ static struct cpu_stats *setup_shared_var(unsigned long cpus)
fd = open_or_die_m(file, O_RDWR | O_CREAT | O_TRUNC,
S_IRUSR | S_IWUSR);
write_or_die(fd, zbuff, len);
+ xfree(zbuff);
buff = mmap(NULL, len, PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
@@ -433,8 +436,8 @@ static int xmit_smoke_setup(struct ctx *ctx)
static int xmit_smoke_probe(int icmp_sock, struct ctx *ctx)
{
int ret;
- unsigned int i, j = 0, probes = 100;
- short ident, cnt = 1, idstore[probes];
+ unsigned int i, j;
+ short ident, cnt = 1, idstore[SMOKE_N_PROBES];
uint8_t outpack[512], *data;
struct icmphdr *icmp;
struct iphdr *ip;
@@ -447,10 +450,10 @@ static int xmit_smoke_probe(int icmp_sock, struct ctx *ctx)
};
fmemset(idstore, 0, sizeof(idstore));
- while (probes-- > 0) {
+ for (j = 0; j < SMOKE_N_PROBES; j++) {
while ((ident = htons((short) rand())) == 0)
sleep(0);
- idstore[j++] = ident;
+ idstore[j] = ident;
memset(outpack, 0, sizeof(outpack));
icmp = (void *) outpack;