X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=util%2Fgmime-extra.c;fp=util%2Fgmime-extra.c;h=7562d9062a20ab1b1a2a9c917c3d4e9b56afe7f5;hp=4b577a5b1cc7457fa11e128615a2ddff3580467d;hb=98b3eebc37eba8b86e888af5dc57dd28ca923e24;hpb=2f33afd159980361d3fcc390223b490b68d92530

diff --git a/util/gmime-extra.c b/util/gmime-extra.c
index 4b577a5b..7562d906 100644
--- a/util/gmime-extra.c
+++ b/util/gmime-extra.c
@@ -1,6 +1,63 @@
 #include "gmime-extra.h"
 #include <string.h>
 
+static
+GMimeStream *
+_gzfile_maybe_filter (GMimeStream *file_stream) {
+    char buf[4];
+    int bytes_read;
+
+    if ((bytes_read = g_mime_stream_read (file_stream, buf, sizeof (buf))) < 0)
+	return NULL;
+
+    if (g_mime_stream_reset (file_stream))
+	return NULL;
+
+    /* check for gzipped input */
+    if (bytes_read >= 2 && buf[0] == 0x1f && (unsigned char)buf[1] == 0x8b) {
+	GMimeStream *gzstream;
+	GMimeFilter *gzfilter;
+
+	gzfilter = g_mime_filter_gzip_new (GMIME_FILTER_GZIP_MODE_UNZIP, 0);
+	if (! gzfilter)
+	    return NULL;
+
+	gzstream = g_mime_stream_filter_new (file_stream);
+	if (! gzstream)
+	    return NULL;
+
+	/* ignore filter id */
+	(void)g_mime_stream_filter_add ((GMimeStreamFilter *)gzstream, gzfilter);
+	return gzstream;
+    } else {
+	return file_stream;
+    }
+}
+
+GMimeStream *
+g_mime_stream_gzfile_new (int fd)
+{
+    GMimeStream *file_stream;
+
+    file_stream = g_mime_stream_fs_new (fd);
+    if (! file_stream)
+	return NULL;
+
+    return _gzfile_maybe_filter (file_stream);
+}
+
+GMimeStream *
+g_mime_stream_gzfile_open (const char *filename)
+{
+    GMimeStream *file_stream;
+
+    file_stream = g_mime_stream_fs_open (filename, 0, 0, NULL);
+    if (! file_stream)
+	return NULL;
+
+    return _gzfile_maybe_filter (file_stream);
+}
+
 GMimeStream *
 g_mime_stream_stdout_new()
 {