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authorDavid Schleef <ds@schleef.org>2001-05-25 23:20:55 +0000
committerDavid Schleef <ds@schleef.org>2001-05-25 23:20:55 +0000
commit6072c7f7eabbf6b6f81aa1ee339f4966d0dd9235 (patch)
tree8b77e334674526708a76945b853ac39d3de1619a /test/malloc/malloc.c
parentfce6446b7eff58d4c910e8938869b431d172db25 (diff)
Random quick-and-dirty evil malloc checker.
Diffstat (limited to 'test/malloc/malloc.c')
-rw-r--r--test/malloc/malloc.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/test/malloc/malloc.c b/test/malloc/malloc.c
new file mode 100644
index 000000000..698ab5e70
--- /dev/null
+++ b/test/malloc/malloc.c
@@ -0,0 +1,43 @@
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define N_PTRS 1000
+#define N_ALLOCS 10000
+#define MAX_SIZE 0x10000
+
+#define random_size() (random()%MAX_SIZE)
+#define random_ptr() (random()%N_PTRS)
+
+int main(int argc,char *argv[])
+{
+ void **ptrs;
+ int i,j;
+ int size;
+
+ srandom(0x19730929);
+
+ ptrs = malloc(N_PTRS*sizeof(void *));
+
+ for(i=0;i<N_PTRS;i++){
+ ptrs[i]=malloc(random_size());
+ }
+ for(i=0;i<N_ALLOCS;i++){
+ j=random_ptr();
+ free(ptrs[j]);
+
+ size=random_size();
+ ptrs[j]=malloc(size);
+ if(!ptrs[j]){
+ printf("malloc failed! %d\n",i);
+ }
+ memset(ptrs[j],0,size);
+ }
+ for(i=0;i<N_PTRS;i++){
+ free(ptrs[i]);
+ }
+
+ return 0;
+}
+