Merge pull request #200 from xexyl/1994-schnitzi

Fix segfault in 1994/schnitzi - use fgets()

1994/schnitzi/README.md

@@ -10,22 +10,36 @@
 
         make all
 
-### To run
+## To run:
 
 	./schnitzi < textfile
 
-## Judges' comments
+[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed the entry to not
+overflow the buffer (and segfault) by changing the call of `gets()` to
+`fgets()`. He also increased the buffer size. Prior to this fix one could not
+redirect the Makefile into this program, as an example problem. Thank you Cody
+for your assistance!
 
-    Try:
+
+## Try:
 
 	./schnitzi < /etc/motd
+	./schnitzi < /etc/passwd
+
+
+
+## Judges' comments:
+
+
+Try:
+
 	./schnitzi < schnitzi.c
 
-    Compare the output of the program with its source.  Sure the output
+Compare the output of the program with its source.  Sure the output
-    is different, but there is more than meets the diff's eye.  Can you
+is different, but there is more than meets the `diff`'s eye.  Can you
-    find out why?
+find out why?
 
-## Author's comments
+## Author's comments:
 
     SPOILER:
 

1994/schnitzi/schnitzi.c

@@ -20,12 +20,12 @@ h                   mh111 de{l)   +di (+'( d+%  c n+
  */                 n         =             0     ;
                main        (       )   {
                 char       v   [
-                100    ]                   ,  s;
+                1000   ]                   ,  s;
           int t[100    ]                    ,
               u[100              ]     ;  u
                   [                   0
       ]=ftell(stdin        )       ;
-         while(gets (v    )                 )
+         while(fgets(v,100,stdin )&&((v[strlen(v)-1]='\0',1))                )
                  {t  [         r ]=
              strlen                 (
                v);y=