Add simple, manual test.

test/CMakeLists.txt

@@ -19,3 +19,18 @@ add_test(
   COMMAND
     ${CMAKE_CURRENT_BINARY_DIR}/scitokens-gtest
   )
+
+
+#
+# Simple, interactive test of the asynchronous interface.  Requires
+# network access to do anything meaningful.
+#
+add_executable(        scitokens-asynch-test asynch.cc )
+target_link_libraries( scitokens-asynch-test SciTokens )
+
+add_test(
+  NAME
+    asynch
+  COMMAND
+    ${CMAKE_CURRENT_BINARY_DIR}/scitokens-asynch-test
+)

test/asynch.cc

@@ -0,0 +1,129 @@
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/select.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+
+#include "../src/scitokens.h"
+
+void
+void usage(const char *self) {
+    fprintf(stderr, "usage: %s encoded-scitoken\n", self);
+
+void
+void print_claim(SciToken &token, const char *claim) {
+    char *value;
+    char *error;
+    int rv = scitoken_get_claim_string(token, claim, &value, &error);
+    if (rv != 0) {
+        fprintf(stderr, "scitoken_get_claim_string('%s') failed: %s\n", claim,
+                error);
+        return;
+    }
+    fprintf( stdout, "%s = %s\n", claim, value );
+}
+
+
+int
+main( int argc, char ** argv) {
+    if( argc < 2 ) { usage(argv[0]); exit(-1); }
+    const char * encoded = argv[1];
+
+    int rv;
+    char * error;
+    SciToken token;
+
+/*
+    // Synchronous.
+    rv = scitoken_deserialize( encoded, & token, NULL, & error );
+    if( rv != 0 ) {
+        fprintf( stderr, "scitoken_deserialize() failed: %s\n", error );
+        exit( -2 );
+    }
+    // scitoken_destroy( token );
+*/
+
+    // The asynchronous API doesn't work like the synchronous API, and
+    // requires that deserialization profile be set before it starts
+    // working.  This is probably a bug, but there's another bug where
+    // the default value for the profile causes a throw.  *sigh*
+
+    // Asynchronous API.
+    SciTokenStatus status;
+    rv = scitoken_deserialize_start(
+        encoded, & token, NULL, & status, & error
+    );
+    if( rv != 0 ) {
+        fprintf( stderr, "scitoken_deserialize_start() failed: %s\n", error );
+        exit( -2 );
+    }
+    if( status == NULL ) {
+        fprintf( stderr, "scitoken_deserialize_start() returned a token\n" );
+        exit( 1 );
+    }
+
+
+    do {
+        fd_set * read_fds = NULL;
+        rv = scitoken_status_get_read_fd_set( & status, & read_fds, & error );
+        if( rv != 0 ) {
+            fprintf( stderr, "scitoken_status_get_read_fd_set() failed: %s\n", error );
+            exit( -2 );
+        }
+
+        fd_set * write_fds = NULL;
+        rv = scitoken_status_get_write_fd_set( & status, & write_fds, & error );
+        if( rv != 0 ) {
+            fprintf( stderr, "scitoken_status_get_write_fd_set() failed: %s\n", error );
+            exit( -2 );
+        }
+
+        fd_set * except_fds = NULL;
+        rv = scitoken_status_get_exc_fd_set( & status, & except_fds, & error );
+        if( rv != 0 ) {
+            fprintf( stderr, "scitoken_status_get_exc_fd_set() failed: %s\n", error );
+            exit( -2 );
+        }
+
+        int max_fds;
+        rv = scitoken_status_get_max_fd( & status, & max_fds, & error );
+        if( rv != 0 ) {
+            fprintf( stderr, "scitoken_status_get_max_fds() failed: %s\n", error );
+            exit( -2 );
+        }
+
+        struct timeval time_out{1, 0};
+        int s = select( max_fds + 1, read_fds, write_fds, except_fds, & time_out );
+        if( s == -1 ) {
+            fprintf( stderr, "select() failed: %s (%d)\n", strerror(errno), errno );
+            exit( -4 );
+        } else if( s == 0 ) {
+            fprintf( stderr, "select() timed out, checking for progress.\n" );
+        }
+
+        fprintf( stderr, "Calling scitoken_deserialize_continue()...\n" );
+        rv = scitoken_deserialize_continue( & token, & status, & error );
+        if( rv != 0 ) {
+            fprintf( stderr, "scitoken_deserialize_continue() failed: %s\n", error );
+            exit( -3 );
+        }
+    } while( status != NULL );
+
+
+    print_claim(token, "ver");
+    print_claim(token, "aud");
+    print_claim(token, "iss");
+    // Not a string.
+    // print_claim(token, "exp");
+    // Not a string.
+    // print_claim(token, "iat");
+    // Not a string.
+    // print_claim(token, "nbf");
+    print_claim(token, "jti");
+
+    scitoken_destroy( token );
+    return 0;
+}