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-rw-r--r--t/helper/test-csprng.c29
-rw-r--r--t/helper/test-tool.c1
-rw-r--r--t/helper/test-tool.h1
3 files changed, 31 insertions, 0 deletions
diff --git a/t/helper/test-csprng.c b/t/helper/test-csprng.c
new file mode 100644
index 0000000000..65d14973c5
--- /dev/null
+++ b/t/helper/test-csprng.c
@@ -0,0 +1,29 @@
+#include "test-tool.h"
+#include "git-compat-util.h"
+
+
+int cmd__csprng(int argc, const char **argv)
+{
+ unsigned long count;
+ unsigned char buf[1024];
+
+ if (argc > 2) {
+ fprintf(stderr, "usage: %s [<size>]\n", argv[0]);
+ return 2;
+ }
+
+ count = (argc == 2) ? strtoul(argv[1], NULL, 0) : -1L;
+
+ while (count) {
+ unsigned long chunk = count < sizeof(buf) ? count : sizeof(buf);
+ if (csprng_bytes(buf, chunk) < 0) {
+ perror("failed to read");
+ return 5;
+ }
+ if (fwrite(buf, chunk, 1, stdout) != chunk)
+ return 1;
+ count -= chunk;
+ }
+
+ return 0;
+}
diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c
index 338a57b104..e6ec69cf32 100644
--- a/t/helper/test-tool.c
+++ b/t/helper/test-tool.c
@@ -20,6 +20,7 @@ static struct test_cmd cmds[] = {
{ "chmtime", cmd__chmtime },
{ "config", cmd__config },
{ "crontab", cmd__crontab },
+ { "csprng", cmd__csprng },
{ "ctype", cmd__ctype },
{ "date", cmd__date },
{ "delta", cmd__delta },
diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index 48cee1f4a2..20756eefdd 100644
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -10,6 +10,7 @@ int cmd__bloom(int argc, const char **argv);
int cmd__chmtime(int argc, const char **argv);
int cmd__config(int argc, const char **argv);
int cmd__crontab(int argc, const char **argv);
+int cmd__csprng(int argc, const char **argv);
int cmd__ctype(int argc, const char **argv);
int cmd__date(int argc, const char **argv);
int cmd__delta(int argc, const char **argv);