| 17 |
|
|
| 18 |
|
#include "color.h" |
| 19 |
|
|
| 20 |
+ |
#ifdef getc_unlocked /* avoid horrendous overhead of flockfile */ |
| 21 |
+ |
#undef getc |
| 22 |
+ |
#undef putc |
| 23 |
+ |
#define getc getc_unlocked |
| 24 |
+ |
#define putc putc_unlocked |
| 25 |
+ |
#endif |
| 26 |
+ |
|
| 27 |
|
#define MINELEN 8 /* minimum scanline length for encoding */ |
| 28 |
|
#define MAXELEN 0x7fff /* maximum scanline length for encoding */ |
| 29 |
|
#define MINRUN 4 /* minimum run length */ |
| 174 |
|
code &= 127; |
| 175 |
|
if ((val = getc(fp)) == EOF) |
| 176 |
|
return -1; |
| 177 |
+ |
if (j + code > len) |
| 178 |
+ |
return -1; /* overrun */ |
| 179 |
|
while (code--) |
| 180 |
|
scanline[j++][i] = val; |
| 181 |
< |
} else /* non-run */ |
| 181 |
> |
} else { /* non-run */ |
| 182 |
> |
if (j + code > len) |
| 183 |
> |
return -1; /* overrun */ |
| 184 |
|
while (code--) { |
| 185 |
|
if ((val = getc(fp)) == EOF) |
| 186 |
|
return -1; |
| 187 |
|
scanline[j++][i] = val; |
| 188 |
|
} |
| 189 |
+ |
} |
| 190 |
|
} |
| 191 |
|
return(0); |
| 192 |
|
} |
