# --- T2-COPYRIGHT-NOTE-BEGIN --- # This copyright note is auto-generated by ./scripts/Create-CopyPatch. # # T2 SDE: package/.../grub/grub-0.95-xpmjunk.patch # Copyright (C) 2004 - 2005 The T2 SDE Project # # More information can be found in the files COPYING and README. # # This patch file is dual-licensed. It is available under the license the # patched project is licensed under, as long as it is an OpenSource license # as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms # of the GNU General Public License as published by the Free Software # Foundation; either version 2 of the License, or (at your option) any later # version. # --- T2-COPYRIGHT-NOTE-END --- --- grub-0.95/stage2/graphics.c.xpmjunk 2005-01-04 17:01:35.492804523 -0500 +++ grub-0.95/stage2/graphics.c 2005-01-04 17:02:52.722495885 -0500 @@ -262,6 +262,35 @@ return; } +/* Open the file, and search for a valid XPM header. Return 1 if one is found, + * leaving the current position as the start of the next line. Else, + * return 0. + */ +int xpm_open(const char *s) { + char buf, prev, target[]="/* XPM */\n"; + int pos=0; + + if (!grub_open(s)) + return 0; + + prev='\n'; + buf=0; + do { + if (grub_read(&buf, 1) != 1) { + grub_close(); + return 0; + } + if ((pos == 0 && prev == '\n') || pos > 0) { + if (buf == target[pos]) + pos++; + else + pos=0; + } + prev=buf; + } while (target[pos]); + return 1; +} + /* Read in the splashscreen image and set the palette up appropriately. * Format of splashscreen is an xpm (can be gzipped) with 16 colors and * 640x480. */ @@ -271,15 +300,9 @@ unsigned char c, base, mask, *s1, *s2, *s4, *s8; unsigned i, len, idx, colors, x, y, width, height; - if (!grub_open(s)) + if (!xpm_open(s)) return 0; - /* read header */ - if (!grub_read((char*)&buf, 10) || grub_memcmp(buf, "/* XPM */\n", 10)) { - grub_close(); - return 0; - } - /* parse info */ while (grub_read(&c, 1)) { if (c == '"')