Merge pull request #106 from xexyl/1990-cmills

Make 1990/cmills use fgets() instead of gets()

1990/cmills/README.md

@@ -18,27 +18,37 @@ We used a patch from [Yusuke Endoh](/winners.html#Yusuke_Endoh) to get this to
 work in modern systems (it resulted in a bus error otherwise). Thank you Yusuke
 for your assistance!
 
+[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) made the program safer
+by using `fgets()` instead of `gets()`. Thank you Cody for your help in making
+this safer! For the original code you can change the instances of:
+
+
+    !fgets(l,M,stdin)
+
+to:
+
+    !gets(l)
+
 
 ### Try:
 
     ./cmills 5000
 
 
-NOTE: this program uses `gets()` so you will likely get a warning under modern
-systems.
+## Judges' comments:
 
-## Judges' comments
 
-    Compile notes:
-
-       cc -DM=500 -DN=52 -DX="srand((int)time(0L))" -DV=void -o cmills cmills.c
+The Makefile uses several `-D` defines. The following is is a list of the macros
+that may be changed:
 
 	-DM=<max bet allowed>
 	-DN=<52 * number of decks used>
 	-DX=<how to seed the rand() generator>
-	-DV=<void ot int>
 
-## Author's comments
+The macro `V` should remain `void`.
+
+
+## Author's comments:
 
 This is a blackjack program.  It does splits, doubling down,
 insurance, etc.  

1990/cmills/cmills.c

@@ -7,13 +7,13 @@
 #define B(n)b(l,n),(V)printf(l
 V
 exit();char*g,c[M],d[N],q[N],p[N],*e,*r=d+N,l[M],t[]="??",*k,*m="DEATHISDSev2oinpohae3ttsluuln4a?uibfe 5l\0rtlfrb6 ?a?el:e7$!n\0?e t8%ccp\0.%s9deelc.s T.@?-t.\t<J /\0=a\nP=Q Sex \0l KW Sin a$\0ane-lay% ge#-slediefuk ar  r$via-:o ?+}:r? n \0:) ee%lone 1-esy666!-~v\n.!^`'~@#\0\np~===:=q";b(o,n)char*o;{for(k=n+m;*o++=*k;k+=9);}int
-y=M*2,v,x,s,f,j,o;u(s){B(s));if(!gets(l))exit(0);return(o=
+y=M*2,v,x,s,f,j,o;u(s){B(s));if(!fgets(l,M,stdin))exit(0);return(o=
 *l)=='y'||o=='Y'||o!='n'&&o!='N'&&u(s);}h(v,m){for(k=c;*k!='J';)if(m==*k++)break;m=k-c;if(v<0)W(v=m-v)
 if(m==1)W(v+=11)
 v+=m;return
 v;}main(w,z)char**z;{b(c,2)*X;for(--w&&(y=atoi(1[z]));y>1;){if(r-d>N*3/4){B(8));F++r)*r=c[(r-d)%13];F)w=
 *(g=d+rand()%N),*g=
-*r,*r++=w;r=d;}for(;;){B(3),y);if(!gets(l)||(w=atoi(l))<1)exit(0);if(w&1||w>M||w>y)B(1),y<M?y:M);else
+*r,*r++=w;r=d;}for(;;){B(3),y);if(!fgets(l,M,stdin)||(w=atoi(l))<1)exit(0);if(w&1||w>M||w>y)B(1),y<M?y:M);else
 break;}y-=w,s=f=j=x=v=0,g=q,e=p;H(x,g)H(x,g)H(v,e)H(v,e)*t=
 *q;S(t)*q=='A'&&y>=w/2&&u(5)&&(y+=(3*(h(0,1[q])==10)-1)*w/2);if(x==-21)goto
 _;if(v==-21){y+=w/2;goto