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Annotation of 43BSD/contrib/X/Xlib/XReadBitmapF.c, revision 1.1

1.1     ! root        1: #include <X/mit-copyright.h>
        !             2: 
        !             3: /* Copyright   Massachusetts Institute of Technology  1985 */
        !             4: /* $Header: XReadBitmapF.c,v 10.8 86/02/01 15:39:24 tony Rel $ */
        !             5: #include "XlibInternal.h"
        !             6: #include <stdio.h>
        !             7: #include <errno.h>
        !             8: #include <strings.h>
        !             9: 
        !            10: #define boolean int
        !            11: 
        !            12: extern int errno;
        !            13: 
        !            14: Status XReadBitmapFile(filename, width, height, data, x_hot, y_hot)
        !            15:     char *filename;
        !            16:     register int *width, *height;  /* RETURN; must be non-NULL */
        !            17:     register short **data;   /* RETURN */
        !            18:     int *x_hot, *y_hot;  /* RETURN; may be NULL */
        !            19:     {
        !            20:     char variable[81];
        !            21:     int status, value, i, data_length;
        !            22:     FILE *file = fopen (filename, "r");
        !            23: 
        !            24:     if (file == NULL)
        !            25:        return (0);
        !            26: 
        !            27:     *width = *height = -1;
        !            28:     if (x_hot) *x_hot = -1;
        !            29:     if (y_hot) *y_hot = -1;
        !            30:     while ((status = fscanf (file, "#define %80s %2d\n", variable, &value))==2)
        !            31:        {
        !            32:        if (StringEndsWith (variable, "width"))
        !            33:            *width = value;
        !            34:        else if (StringEndsWith (variable, "height"))
        !            35:            *height = value;
        !            36:        else if (StringEndsWith (variable, "x_hot"))
        !            37:            if (x_hot) *x_hot = value;
        !            38:        else if (StringEndsWith (variable, "y_hot"))
        !            39:            if (y_hot) *y_hot = value;
        !            40:        }
        !            41: 
        !            42:     if (*width <= 0) {
        !            43:        fclose (file);
        !            44:        errno = EINVAL;
        !            45:        return (-1);
        !            46:        }
        !            47:        
        !            48:     if (*height <= 0) {
        !            49:        fclose (file);
        !            50:        errno = EINVAL;
        !            51:        return (-2);
        !            52:        }
        !            53: 
        !            54:     data_length = BitmapSize (*width, *height);
        !            55:     *data = (short *) malloc (data_length);
        !            56:     data_length /= sizeof(short);
        !            57:     if (*data == NULL) {
        !            58:        fclose (file);
        !            59:        return (-3);
        !            60:        }
        !            61:     
        !            62:     status = fscanf (file, "static short %80s = { 0x%4hx", variable,
        !            63:        *data);  /* fills in 0th element of *data array */
        !            64:     if ((status != 2) || !StringEndsWith (variable, "bits[]")) {
        !            65:        free (*data);
        !            66:        fclose (file);
        !            67:        errno = EINVAL;
        !            68:        return (-4);
        !            69:        }
        !            70: 
        !            71:     for (i=1;i<data_length;i++) {
        !            72:        /* fill in i'th element of data array */
        !            73:        status = fscanf (file, ", 0x%4hx", *data + i);
        !            74:        if (status != 1) {
        !            75:            free (*data);
        !            76:            fclose (file);
        !            77:            errno = EINVAL;
        !            78:            return (-5);
        !            79:            }
        !            80:        }
        !            81: 
        !            82:     fclose (file);
        !            83:     return (1);
        !            84:     }
        !            85: 
        !            86: /* StringEndsWith returns TRUE if "s" ends with "suffix", else returns FALSE */
        !            87: static boolean StringEndsWith (s, suffix)
        !            88:   char *s, *suffix;
        !            89:   {
        !            90:   int s_len = strlen (s);
        !            91:   int suffix_len = strlen (suffix);
        !            92:   return (strcmp (s + s_len - suffix_len, suffix) == 0);
        !            93:   }

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