1 files changed, 145 insertions, 0 deletions
diff --git a/debuginfod/debuginfod-find.c b/debuginfod/debuginfod-find.c
new file mode 100644
index 00000000..8bd3a3db
--- /dev/null
+++ b/debuginfod/debuginfod-find.c
@@ -0,0 +1,145 @@
+/* Command-line frontend for retrieving ELF / DWARF / source files
+   from the debuginfod.
+   Copyright (C) 2019 Red Hat, Inc.
+   This file is part of elfutils.
+
+   This file is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   elfutils is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "printversion.h"
+#include "debuginfod.h"
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <argp.h>
+
+
+/* Name and version of program.  */
+ARGP_PROGRAM_VERSION_HOOK_DEF = print_version;
+
+/* Bug report address.  */
+ARGP_PROGRAM_BUG_ADDRESS_DEF = PACKAGE_BUGREPORT;
+
+/* Short description of program.  */
+static const char doc[] = N_("Request debuginfo-related content "
+                             "from debuginfods listed in $" DEBUGINFOD_URLS_ENV_VAR ".");
+
+/* Strings for arguments in help texts.  */
+static const char args_doc[] = N_("debuginfo BUILDID\n"
+                                  "executable BUILDID\n"
+                                  "source BUILDID /FILENAME");
+
+/* Definitions of arguments for argp functions.  */
+static const struct argp_option options[] =
+  {
+   { "verbose", 'v', NULL, 0, "Increase verbosity.", 0 },
+   { NULL, 0, NULL, 0, NULL, 0 }
+  };
+
+/* debuginfod connection handle.  */
+static debuginfod_client *client;
+
+int progressfn(debuginfod_client *c __attribute__((__unused__)),
+	       long a, long b)
+{
+  fprintf (stderr, "Progress %ld / %ld\n", a, b);
+  return 0;
+}
+
+
+static error_t parse_opt (int key, char *arg, struct argp_state *state)
+{
+  (void) arg;
+  (void) state;
+  switch (key)
+    {
+    case 'v': debuginfod_set_progressfn (client, & progressfn); break;
+    default: return ARGP_ERR_UNKNOWN;
+    }
+  return 0;
+}
+
+
+/* Data structure to communicate with argp functions.  */
+static struct argp argp =
+  {
+   options, parse_opt, args_doc, doc, NULL, NULL, NULL
+  };
+
+
+
+int
+main(int argc, char** argv)
+{
+  client = debuginfod_begin ();
+  if (client == NULL)
+    {
+      fprintf(stderr, "Couldn't create debuginfod client context\n");
+      return 1;
+    }
+
+  int remaining;
+  (void) argp_parse (&argp, argc, argv, ARGP_IN_ORDER|ARGP_NO_ARGS, &remaining, NULL);
+
+  if (argc < 2 || remaining+1 == argc) /* no arguments or at least two non-option words */
+    {
+      argp_help (&argp, stderr, ARGP_HELP_USAGE, argv[0]);
+      return 1;
+    }
+
+  int rc;
+  char *cache_name;
+
+  /* Check whether FILETYPE is valid and call the appropriate
+     debuginfod_find_* function. If FILETYPE is "source"
+     then ensure a FILENAME was also supplied as an argument.  */
+  if (strcmp(argv[remaining], "debuginfo") == 0)
+    rc = debuginfod_find_debuginfo(client,
+				   (unsigned char *)argv[remaining+1], 0,
+				   &cache_name);
+  else if (strcmp(argv[remaining], "executable") == 0)
+    rc = debuginfod_find_executable(client,
+				    (unsigned char *)argv[remaining+1], 0,
+				    &cache_name);
+  else if (strcmp(argv[remaining], "source") == 0)
+    {
+      if (remaining+2 == argc || argv[3][0] != '/')
+        {
+          fprintf(stderr, "If FILETYPE is \"source\" then absolute /FILENAME must be given\n");
+          return 1;
+        }
+      rc = debuginfod_find_source(client, (unsigned char *)argv[remaining+1],
+				  0, argv[remaining+2], &cache_name);
+    }
+  else
+    {
+      argp_help (&argp, stderr, ARGP_HELP_USAGE, argv[0]);
+      return 1;
+    }
+
+  if (rc < 0)
+    {
+      fprintf(stderr, "Server query failed: %s\n", strerror(-rc));
+      return 1;
+    }
+
+  printf("%s\n", cache_name);
+
+  free (cache_name);
+  debuginfod_end (client);
+
+  return 0;
+}