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-rw-r--r--stdio-common/test-popen.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/stdio-common/test-popen.c b/stdio-common/test-popen.c
new file mode 100644
index 0000000000..b452f3f63c
--- /dev/null
+++ b/stdio-common/test-popen.c
@@ -0,0 +1,67 @@
+#include <ansidecl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+DEFUN(write_data, (stream), FILE *stream)
+{
+ int i;
+ for (i=0; i<100; i++)
+ fprintf (stream, "%d\n", i);
+ if (ferror (stream)) {
+ fprintf (stderr, "Output to stream failed.\n");
+ exit (1);
+ }
+}
+
+void
+DEFUN(read_data, (stream), FILE *stream)
+{
+ int i, j;
+
+ for (i=0; i<100; i++)
+ {
+ if (fscanf (stream, "%d\n", &j) != 1 || j != i)
+ {
+ if (ferror (stream))
+ perror ("fscanf");
+ puts ("Test FAILED!");
+ exit (1);
+ }
+ }
+}
+
+int
+DEFUN_VOID(main)
+{
+ FILE *output, *input;
+ int wstatus, rstatus;
+
+ output = popen ("/bin/cat >/tmp/tstpopen.tmp", "w");
+ if (output == NULL)
+ {
+ perror ("popen");
+ puts ("Test FAILED!");
+ exit (1);
+ }
+ write_data (output);
+ wstatus = pclose (output);
+ printf ("writing pclose returned %d\n", wstatus);
+ input = popen ("/bin/cat /tmp/tstpopen.tmp", "r");
+ if (input == NULL)
+ {
+ perror ("/tmp/tstpopen.tmp");
+ puts ("Test FAILED!");
+ exit (1);
+ }
+ read_data (input);
+ rstatus = pclose (input);
+ printf ("reading pclose returned %d\n", rstatus);
+
+ puts (wstatus | rstatus ? "Test FAILED!" : "Test succeeded.");
+ exit (wstatus | rstatus);
+}
+
+
+
+