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-rw-r--r--rbutil/bspatch/bspatch.c218
1 files changed, 0 insertions, 218 deletions
diff --git a/rbutil/bspatch/bspatch.c b/rbutil/bspatch/bspatch.c
deleted file mode 100644
index d1d7a5aa7a..0000000000
--- a/rbutil/bspatch/bspatch.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/*-
- * Copyright 2003-2005 Colin Percival
- * All rights reserved
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted providing that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifdef WIN32
-#include <io.h>
-#else
-#include <stdarg.h>
-#include <sys/types.h>
-#endif
-#include "../bzip2/bzlib.h"
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-
-#define errx err
-void err(int exitcode, const char * fmt, ...)
-{
- va_list valist;
- va_start(valist, fmt);
- vprintf(fmt, valist);
- va_end(valist);
- exit(exitcode);
-}
-
-static long offtin(u_char *buf)
-{
- long y;
-
- y = buf[7] & 0x7F;
- y = y * 256;y += buf[6];
- y = y * 256;y += buf[5];
- y = y * 256;y += buf[4];
- y = y * 256;y += buf[3];
- y = y * 256;y += buf[2];
- y = y * 256;y += buf[1];
- y = y * 256;y += buf[0];
-
- if (buf[7] & 0x80) y = -y;
-
- return y;
-}
-
-int apply_bspatch(const char *infile, const char *outfile, const char *patchfile)
-{
- FILE * f, *cpf, *dpf, *epf;
- BZFILE * cpfbz2, *dpfbz2, *epfbz2;
- int cbz2err, dbz2err, ebz2err;
- FILE * fs;
- long oldsize, newsize;
- long bzctrllen, bzdatalen;
- u_char header[32], buf[8];
- u_char *pold, *pnew;
- long oldpos, newpos;
- long ctrl[3];
- long lenread;
- long i;
-
- /* Open patch file */
- if ((f = fopen(patchfile, "r")) == NULL)
- err(1, "fopen(%s)", patchfile);
-
- /*
- File format:
- 0 8 "BSDIFF40"
- 8 8 X
- 16 8 Y
- 24 8 sizeof(newfile)
- 32 X bzip2(control block)
- 32+X Y bzip2(diff block)
- 32+X+Y ??? bzip2(extra block)
- with control block a set of triples (x,y,z) meaning "add x bytes
- from oldfile to x bytes from the diff block; copy y bytes from the
- extra block; seek forwards in oldfile by z bytes".
- */
-
- /* Read header */
- if (fread(header, 1, 32, f) < 32) {
- if (feof(f))
- errx(1, "Corrupt patch\n");
- err(1, "fread(%s)", patchfile);
- }
-
- /* Check for appropriate magic */
- if (memcmp(header, "BSDIFF40", 8) != 0)
- errx(1, "Corrupt patch\n");
-
- /* Read lengths from header */
- bzctrllen = offtin(header + 8);
- bzdatalen = offtin(header + 16);
- newsize = offtin(header + 24);
- if ((bzctrllen < 0) || (bzdatalen < 0) || (newsize < 0))
- errx(1, "Corrupt patch\n");
-
- /* Close patch file and re-open it via libbzip2 at the right places */
- if (fclose(f))
- err(1, "fclose(%s)", patchfile);
- if ((cpf = fopen(patchfile, "rb")) == NULL)
- err(1, "fopen(%s)", patchfile);
- if (fseek(cpf, 32, SEEK_SET))
- err(1, "fseeko(%s, %lld)", patchfile,
- (long long)32);
- if ((cpfbz2 = BZ2_bzReadOpen(&cbz2err, cpf, 0, 0, NULL, 0)) == NULL)
- errx(1, "BZ2_bzReadOpen, bz2err = %d", cbz2err);
- if ((dpf = fopen(patchfile, "rb")) == NULL)
- err(1, "fopen(%s)", patchfile);
- if (fseek(dpf, 32 + bzctrllen, SEEK_SET))
- err(1, "fseeko(%s, %lld)", patchfile,
- (long long)(32 + bzctrllen));
- if ((dpfbz2 = BZ2_bzReadOpen(&dbz2err, dpf, 0, 0, NULL, 0)) == NULL)
- errx(1, "BZ2_bzReadOpen, bz2err = %d", dbz2err);
- if ((epf = fopen(patchfile, "rb")) == NULL)
- err(1, "fopen(%s)", patchfile);
- if (fseek(epf, 32 + bzctrllen + bzdatalen, SEEK_SET))
- err(1, "fseeko(%s, %lld)", patchfile,
- (long long)(32 + bzctrllen + bzdatalen));
- if ((epfbz2 = BZ2_bzReadOpen(&ebz2err, epf, 0, 0, NULL, 0)) == NULL)
- errx(1, "BZ2_bzReadOpen, bz2err = %d", ebz2err);
-
- fs = fopen(infile, "rb");
- if (fs == NULL)err(1, "Open failed :%s", infile);
- if (fseek(fs, 0, SEEK_END) != 0)err(1, "Seek failed :%s", infile);
- oldsize = ftell(fs);
- pold = (u_char *)malloc(oldsize + 1);
- if (pold == NULL) err(1, "Malloc failed :%s", infile);
- fseek(fs, 0, SEEK_SET);
- if (fread(pold, 1, oldsize, fs) == -1) err(1, "Read failed :%s", infile);
- if (fclose(fs) == -1) err(1, "Close failed :%s", infile);
-
- pnew = malloc(newsize + 1);
- if (pnew == NULL)err(1, NULL);
-
- oldpos = 0;newpos = 0;
- while (newpos < newsize) {
- /* Read control data */
- for (i = 0;i <= 2;i++) {
- lenread = BZ2_bzRead(&cbz2err, cpfbz2, buf, 8);
- if ((lenread < 8) || ((cbz2err != BZ_OK) &&
- (cbz2err != BZ_STREAM_END)))
- errx(1, "Corrupt patch\n");
- ctrl[i] = offtin(buf);
- };
-
- /* Sanity-check */
- if (newpos + ctrl[0] > newsize)
- errx(1, "Corrupt patch\n");
-
- /* Read diff string */
- lenread = BZ2_bzRead(&dbz2err, dpfbz2, pnew + newpos, ctrl[0]);
- if ((lenread < ctrl[0]) ||
- ((dbz2err != BZ_OK) && (dbz2err != BZ_STREAM_END)))
- errx(1, "Corrupt patch\n");
-
- /* Add pold data to diff string */
- for (i = 0;i < ctrl[0];i++)
- if ((oldpos + i >= 0) && (oldpos + i < oldsize))
- pnew[newpos + i] += pold[oldpos + i];
-
- /* Adjust pointers */
- newpos += ctrl[0];
- oldpos += ctrl[0];
-
- /* Sanity-check */
- if (newpos + ctrl[1] > newsize)
- errx(1, "Corrupt patch\n");
-
- /* Read extra string */
- lenread = BZ2_bzRead(&ebz2err, epfbz2, pnew + newpos, ctrl[1]);
- if ((lenread < ctrl[1]) ||
- ((ebz2err != BZ_OK) && (ebz2err != BZ_STREAM_END)))
- errx(1, "Corrupt patch\n");
-
- /* Adjust pointers */
- newpos += ctrl[1];
- oldpos += ctrl[2];
- };
-
- /* Clean up the bzip2 reads */
- BZ2_bzReadClose(&cbz2err, cpfbz2);
- BZ2_bzReadClose(&dbz2err, dpfbz2);
- BZ2_bzReadClose(&ebz2err, epfbz2);
- if (fclose(cpf) || fclose(dpf) || fclose(epf))
- err(1, "fclose(%s)", patchfile);
-
- /* Write the pnew file */
- fs = fopen(outfile, "wb");
- if (fs == NULL)err(1, "Create failed :%s", outfile);
- if (fwrite(pnew, 1, newsize, fs) == -1)err(1, "Write failed :%s", outfile);
- if (fclose(fs) == -1)err(1, "Close failed :%s", outfile);
-
- free(pnew);
- free(pold);
-
- return 0;
-}
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