ffi: Bind {reader,writer}-related functions in the openpgp module.

  - Bind the armor filters, as well as the reader-based constructor of
    TPK.

2 files changed, 57 insertions, 1 deletions

diff --git a/ffi/examples/Makefile b/ffi/examples/Makefile
index aa1da727..d3fff15e 100644
--- a/ffi/examples/Makefile
+++ b/ffi/examples/Makefile
@@ -1,6 +1,6 @@
 # Makefile for examples written in C.
 
-TARGETS = example keyserver configure
+TARGETS = example keyserver configure reader
 CFLAGS  = -I../include -O0 -g -Wall
 LDFLAGS = -L../../target/debug -lsequoia_ffi
 
diff --git a/ffi/examples/reader.c b/ffi/examples/reader.c
new file mode 100644
index 00000000..dde98016
--- /dev/null
+++ b/ffi/examples/reader.c
@@ -0,0 +1,56 @@
+#define _GNU_SOURCE
+#include <error.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <sequoia.h>
+
+int
+main (int argc, char **argv)
+{
+  struct stat st;
+  int fd;
+  uint8_t *b;
+  sq_context_t ctx;
+  sq_reader_t reader;
+  sq_tpk_t tpk;
+
+  if (argc != 2)
+    error (1, 0, "Usage: %s <file>", argv[0]);
+
+  ctx = sq_context_new("org.sequoia-pgp.example");
+  if (ctx == NULL)
+    error (1, 0, "Initializing sequoia failed.");
+
+  if (stat (argv[1], &st))
+    error (1, errno, "%s", argv[1]);
+
+  fd = open (argv[1], O_RDONLY);
+  if (fd == -1)
+    error (1, errno, "%s", argv[1]);
+
+  b = mmap (NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+  if (b == MAP_FAILED)
+    error (1, errno, "mmap");
+
+  reader = sq_reader_from_bytes (b, st.st_size);
+  if (reader == NULL)
+    error (1, 0, "sq_reader_from_bytes: %s", sq_last_strerror (ctx));
+
+  tpk = sq_tpk_from_reader (ctx, reader);
+  if (tpk == NULL)
+    error (1, 0, "sq_tpk_from_reader: %s", sq_last_strerror (ctx));
+
+  sq_tpk_dump (tpk);
+  sq_tpk_free (tpk);
+  sq_reader_free (reader);
+  sq_context_free (ctx);
+  munmap (b, st.st_size);
+  close (fd);
+  return 0;
+}