From 18fdd09087c7ccc9932d464c7f5939bdf2d6f67a Mon Sep 17 00:00:00 2001
From: Max Christian Pohle
Date: Mon, 23 May 2016 01:42:26 +0200
Subject: fixed strlen error

---
 captcha.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/captcha.c b/captcha.c
index 18f7d99..2b86e2e 100644
--- a/captcha.c
+++ b/captcha.c
@@ -7,10 +7,10 @@ int captcha_print(char* text)
   gdImagePtr im = gdImageCreateFromPngPtr(file->size, file->data);
   gdImageColorTransparent(im, gdImageColorAllocate(im, 255, 255, 255));
   
-  char  text_width = strlen(text);
+  char  text_width   = strlen(text);
   float letter_width = ((float) gdImageSX(im) / 26.00);
 
-  int image_width = letter_width * text_width;
+  int image_width = letter_width * (text_width - 2);
   int image_height = gdImageSY(im);
 
   gdImagePtr image = gdImageCreateTrueColor(image_width, image_height);
@@ -26,7 +26,7 @@ int captcha_print(char* text)
   }
 
   int pos;
-  for(pos=0; text[pos]!='\0'; pos++)
+  for(pos=0; pos<text_width-1; pos++)
   {
     //printf("[pos:%d] %d\n", pos, (text[pos] - 65) );
     gdImageCopyMerge(image, im, 
@@ -35,7 +35,7 @@ int captcha_print(char* text)
         letter_width, gdImageSY(image), 50);
   }
 
-  puts("content-type: image/jpeg\n");
+  //puts("content-type: image/jpeg\n");
   gdImageJpeg(image, stdout, 80);
 
   gdImageDestroy(image);
-- 
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