--- ray/src/px/ra_skel.c	1992/12/17 15:50:13	2.4
+++ ray/src/px/ra_skel.c	1993/11/18 09:55:24	2.8
@@ -19,6 +19,7 @@ static char SCCSid[] = "$SunId$ LBL";
  */
 
 #include  <stdio.h>
+#include  <math.h>
 #ifdef MSDOS
 #include  <fcntl.h>
 #endif
@@ -27,7 +28,7 @@ static char SCCSid[] = "$SunId$ LBL";
 
 extern char  *malloc();
 
-double	gamma = 2.2;			/* gamma correction */
+double	gamcor = 2.2;			/* gamma correction */
 
 int  bradj = 0;				/* brightness adjustment */
 
@@ -49,7 +50,7 @@ char  *argv[];
 		if (argv[i][0] == '-')
 			switch (argv[i][1]) {
 			case 'g':		/* gamma correction */
-				gamma = atof(argv[++i]);
+				gamcor = atof(argv[++i]);
 				break;
 			case 'e':		/* exposure adjustment */
 				if (argv[i+1][0] != '+' && argv[i+1][0] != '-')
@@ -73,7 +74,7 @@ char  *argv[];
 		exit(1);
 	}
 	if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
-		fprintf(stderr, "can't open output \"%s\"\n",
+		fprintf(stderr, "%s: can't open output \"%s\"\n",
 				progname, argv[i+1]);
 		exit(1);
 	}
@@ -81,7 +82,7 @@ char  *argv[];
 	setmode(fileno(stdin), O_BINARY);
 	setmode(fileno(stdout), O_BINARY);
 #endif
-	setcolrgam(gamma);		/* set up gamma correction */
+	setcolrgam(gamcor);		/* set up gamma correction */
 	if (reverse) {
 					/* get their image resolution */
 		read_skel_head(&xmax, &ymax);
@@ -133,10 +134,12 @@ skel2ra()		/* convert 24-bit scanlines to Radiance pic
 		quiterr("out of memory in skel2ra");
 						/* convert image */
 	for (y = ymax-1; y >= 0; y--) {
-		scanout[x][RED] = getc(stdin);
-		scanout[x][GRN] = getc(stdin);
-		scanout[x][BLU] = getc(stdin);
-		if (feof(stdin) || ferror(stdin))
+		for (x = 0; x < xmax; x++) {
+			scanout[x][RED] = getc(stdin);
+			scanout[x][GRN] = getc(stdin);
+			scanout[x][BLU] = getc(stdin);
+		}
+		if (feof(stdin) | ferror(stdin))
 			quiterr("error reading skel image");
 						/* undo gamma */
 		gambs_colrs(scanout, xmax);