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-rw-r--r--cqrlogo.c60
1 files changed, 54 insertions, 6 deletions
diff --git a/cqrlogo.c b/cqrlogo.c
index 4121b20..1681531 100644
--- a/cqrlogo.c
+++ b/cqrlogo.c
@@ -16,6 +16,10 @@
#include <zlib.h>
#include <qrencode.h>
+#if HAVE_FCGI
+#include <fcgi_stdio.h>
+#endif
+
#include "config.h"
#include "version.h"
@@ -39,6 +43,19 @@ png_text * add_png_text(png_text *pngtext, unsigned int *textcount, char *key, c
}
#endif
+#if HAVE_FCGI
+/*** png_write_stdout ***/
+void png_write_stdout(png_structp png_ptr, png_bytep data, png_size_t length) {
+ if (length != fwrite(data, 1, length, png_get_io_ptr(png_ptr)))
+ png_error(png_ptr, "Write Error");
+}
+
+/*** png_flush_stdout ***/
+void png_flush_stdout(png_structp png_ptr) {
+ fflush(stdout);
+}
+#endif
+
/*** generate_png ***/
int generate_png (struct bitmap_t *bitmap, const char *uri) {
png_structp png_ptr = NULL;
@@ -76,7 +93,11 @@ int generate_png (struct bitmap_t *bitmap, const char *uri) {
# endif
# if PNG_ENABLE_TEXT_VERSIONS
-# define VERSIONSTR VERSION " (" __DATE__ ", " __TIME__ ")"
+#if HAVE_FCGI
+# define VERSIONSTR VERSION " (FastCGI) (" __DATE__ ", " __TIME__ ")"
+#else
+# define VERSIONSTR VERSION " (CGI) (" __DATE__ ", " __TIME__ ")"
+#endif
# define LIBSSTR "libqrencode %s, libpng %s, zlib %s"
char *libsstr, *qrver = QRcode_APIVersionString();
@@ -109,7 +130,14 @@ int generate_png (struct bitmap_t *bitmap, const char *uri) {
}
}
+#if HAVE_FCGI
+ /* with fastcgi we can not just open stdout for writing...
+ * define a write function instead */
+ png_set_write_fn(png_ptr, (png_voidp)stdout, png_write_stdout, png_flush_stdout);
+#else
png_init_io (png_ptr, stdout);
+#endif
+
png_set_rows (png_ptr, info_ptr, row_pointers);
png_write_png (png_ptr, info_ptr, PNG_TRANSFORM_IDENTITY, NULL);
@@ -118,8 +146,6 @@ int generate_png (struct bitmap_t *bitmap, const char *uri) {
png_free (png_ptr, row_pointers);
png_destroy_write_struct(&png_ptr, &info_ptr);
- fclose(stdout);
-
return 0;
}
@@ -251,13 +277,30 @@ unsigned int get_ini_value(dictionary * ini, uint8_t type, const char * section,
int main(int argc, char **argv) {
dictionary * ini;
const char * http_referer, * server_name, * query_string, * uri;
- char * uri_server_name = NULL, * uri_png = NULL, * pattern = NULL, * stolen = NULL;
+ char * uri_server_name, * uri_png, * pattern, * stolen;
regex_t preg;
regmatch_t pmatch[1];
- uint8_t https = 0, overwrite = ALLOW_OVERWRITE;
+ uint8_t https, overwrite;
struct bitmap_t * bitmap;
- unsigned int scale = QRCODE_SCALE, border = QRCODE_BORDER, level = QRCODE_LEVEL;
+ unsigned int scale, border, level;
+
+#if HAVE_FCGI
+ /* loop for requests */
+ while (FCGI_Accept() >= 0) {
+#endif
+ /* do the variable initialization within the loop! */
+ uri_server_name = NULL;
+ uri_png = NULL;
+ pattern = NULL;
+ stolen = NULL;
+
+ https = 0;
+ overwrite = ALLOW_OVERWRITE;
+
+ scale = QRCODE_SCALE;
+ border = QRCODE_BORDER;
+ level = QRCODE_LEVEL;
/* check if we have environment variables from CGI */
if ((server_name = getenv("SERVER_NAME")) == NULL) {
@@ -367,6 +410,11 @@ int main(int argc, char **argv) {
free(uri_png);
bitmap_free(bitmap);
+#if HAVE_FCGI
+ /* end of loop */
+ }
+#endif
+
return EXIT_SUCCESS;
}