Add fz_output, and make output functions use it.

Various functions in the code output to FILE *, when there are times
we'd like them to output to other things, such as fz_buffers.

Add an fz_output type, together with fz_printf to allow things to
output to this.

1 files changed, 4 insertions, 4 deletions

diff --git a/fitz/fitz-internal.h b/fitz/fitz-internal.h
index 4839af7d..7e817190 100644
--- a/fitz/fitz-internal.h
+++ b/fitz/fitz-internal.h
@@ -651,11 +651,11 @@ void fz_write_buffer_bits(fz_context *ctx, fz_buffer *buf, int val, int bits);
 void fz_write_buffer_pad(fz_context *ctx, fz_buffer *buf);
 
 /*
-	fz_buffer_printf: print formatted to a buffer. The buffer will
-	grow, but the caller must ensure that no more than 256 bytes are
-	added to the buffer per call.
+	fz_buffer_printf: print formatted to a buffer. The buffer will grow
+	as required.
 */
-void fz_buffer_printf(fz_context *ctx, fz_buffer *buffer, const char *fmt, ...);
+int fz_buffer_printf(fz_context *ctx, fz_buffer *buffer, const char *fmt, ...);
+int fz_buffer_vprintf(fz_context *ctx, fz_buffer *buffer, const char *fmt, va_list args);
 
 /*
 	fz_buffer_printf: print a string formatted as a pdf string to a buffer.