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authorsheldonh <sheldonh@FreeBSD.org>2000-11-02 10:04:02 +0000
committersheldonh <sheldonh@FreeBSD.org>2000-11-02 10:04:02 +0000
commit2bcb9c36d1a5492cdaed585650f53b2fea2a46aa (patch)
tree5b35819a5bf6ad669fd882433eb477547e92001b /usr.bin/kzip/kzip.c
parent9efecf837b70f8b80a16b21834ce059aa3f3b87b (diff)
downloadFreeBSD-src-2bcb9c36d1a5492cdaed585650f53b2fea2a46aa.zip
FreeBSD-src-2bcb9c36d1a5492cdaed585650f53b2fea2a46aa.tar.gz
Good-bye cruel world.
This software is obsolete, and its successor has interested parties looking at it. Even if nobody was looking at kgzip, this utility still wouldn't be useful in an environment where aout kernels are a thing of the past. PR: 20643 Submitted by: Peter Pentchev <roam@orbitel.bg>
Diffstat (limited to 'usr.bin/kzip/kzip.c')
-rw-r--r--usr.bin/kzip/kzip.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/usr.bin/kzip/kzip.c b/usr.bin/kzip/kzip.c
deleted file mode 100644
index 5af945a..0000000
--- a/usr.bin/kzip/kzip.c
+++ /dev/null
@@ -1,337 +0,0 @@
-/*
- * ----------------------------------------------------------------------------
- * "THE BEER-WARE LICENSE" (Revision 42):
- * <phk@login.dknet.dk> wrote this file. As long as you retain this notice you
- * can do whatever you want with this stuff. If we meet some day, and you think
- * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
- * ----------------------------------------------------------------------------
- *
- * Copyright (C) 1993 Hannu Savolainen
- * Ported to 386bsd by Serge Vakulenko
- * based on tools/build.c by Linus Torvalds
- */
-
-#ifndef lint
-static const char rcsid[] =
- "$FreeBSD$";
-#endif /* not lint */
-
-#include <err.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/file.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/param.h>
-#include <sys/wait.h>
-#include <a.out.h>
-#include <string.h>
-
-#define MAXIMAGE (2*1024*1024)
- /* This is the limit because a kzip'ed kernel loads at 3Mb and
- * ends up at 1Mb
- */
-static void
-usage()
-{
- fprintf(stderr, "usage: kzip [-v] [ -l loadaddr] kernel\n");
- exit(1);
-}
-
-int
-main(int argc, char **argv)
-{
- pid_t Pext, Pgzip, Ppiggy, Pld;
- int pipe1[2], pipe2[2];
- int status, fdi, fdo, fdn, c, verbose;
- int size;
- struct exec hdr;
- int zip_size, offset;
- struct stat st;
- u_long forceaddr = 0, entry;
- char *kernname;
- char obj[MAXPATHLEN + 1];
- char out[MAXPATHLEN + 1];
- char base[32];
-
- while ((c = getopt(argc, argv, "l:v")) != -1) {
- switch (c) {
- case 'l':
- forceaddr = strtoul(optarg, NULL, 0);
- if (forceaddr == 0)
- errx(1, "invalid load address");
- break;
- case 'v':
- verbose++;
- break;
- default:
- usage();
- }
- }
-
- if ((argc - optind) != 1)
- usage();
-
- argc -= optind;
- argv += optind;
-
- kernname = argv[0];
-
- if (strlen(kernname) > MAXPATHLEN - 3)
- errx(1, "%s: File name too long", kernname);
- strcpy(obj, kernname); strcat(obj,".o");
- strcpy(out, kernname); strcat(out,".kz");
-
- fdi = open(kernname ,O_RDONLY);
- if(fdi<0) {
- warn("%s", kernname);
- return 2;
- }
-
- /* figure out how big the uncompressed image will be */
- if (read (fdi, (char *)&hdr, sizeof(hdr)) != sizeof(hdr))
- err(2, "%s", argv[1]);
-
- size = hdr.a_text + hdr.a_data + hdr.a_bss;
- entry = hdr.a_entry & 0x00FFFFFF;
-
- lseek (fdi, 0, SEEK_SET);
-
- if (verbose) {
- printf("real kernel start address will be: 0x%x\n", entry);
- printf("real kernel end address will be: 0x%x\n", entry+size);
- }
-
-
- fdo = open(obj,O_WRONLY|O_TRUNC|O_CREAT,0666);
- if(fdo<0) {
- warn("%s", obj);
- return 2;
- }
-
- if (pipe(pipe1) < 0) { perror("pipe()"); return 1; }
-
- if (pipe(pipe2) < 0) { perror("pipe()"); return 1; }
-
- Pext = fork();
- if (Pext < 0) { perror("fork()"); return 1; }
- if (!Pext) {
- dup2(fdi,0);
- dup2(pipe1[1],1);
- close(pipe1[0]); close(pipe1[1]);
- close(pipe2[0]); close(pipe2[1]);
- close(fdi); close(fdo);
- extract(kernname);
- exit(0);
- }
-
- Pgzip = fork();
- if (Pgzip < 0) { perror("fork()"); return 1; }
- if (!Pgzip) {
- dup2(pipe1[0],0);
- dup2(pipe2[1],1);
- close(pipe1[0]); close(pipe1[1]);
- close(pipe2[0]); close(pipe2[1]);
- close(fdi); close(fdo);
- execlp("gzip", "gzip", "-9", "-n", 0);
- exit (0);
- }
-
- Ppiggy = fork();
- if (Ppiggy < 0) { warn("fork()"); return 1; }
- if (!Ppiggy) {
- dup2(pipe2[0],0);
- dup2(fdo,1);
- close(pipe1[0]); close(pipe1[1]);
- close(pipe2[0]); close(pipe2[1]);
- close(fdi); close(fdo);
- piggyback(obj);
- exit(0);
- }
-
- close(pipe1[0]); close(pipe1[1]);
- close(pipe2[0]); close(pipe2[1]);
- close(fdi); close(fdo);
-
- if (waitpid(Pext, &status,0) < 0)
- { warn("waitpid(Pextract)"); return 1; }
-
- if(status) {
- warnx("extract returned %x",status);
- return 3;
- }
-
- if (waitpid(Pgzip, &status,0) < 0)
- { perror("waitpid(Pgzip)"); return 1; }
-
- if(status) {
- warnx("gzip returned %x",status);
- return 3;
- }
-
- if (waitpid(Ppiggy, &status,0) < 0)
- { warn("waitpid(Ppiggy)"); return 1; }
-
- if(status) {
- warnx("piggyback returned %x",status);
- return 3;
- }
-
- if (forceaddr)
- offset = forceaddr;
- else {
- /* a kludge to dynamically figure out where to start it */
- if (stat (obj, &st) < 0) {
- warn("cannot get size of compressed data");
- return 3;
- }
- zip_size = (int)st.st_size;
- offset = entry + size - zip_size + 0x8000; /* fudge factor */
- }
- sprintf(base, "0x%x", roundup(offset, 4096));
-
- Pld = fork();
- if (Pld < 0) { warn("fork()"); return 1; }
- if (!Pld) {
- execlp("ld",
- "ld",
- "-aout",
- "-Bstatic",
- "-Z",
- "-T",
- base,
- "-o",
- out,
- "/usr/lib/aout/kzhead.o",
- obj,
- "/usr/lib/aout/kztail.o",
- 0);
- exit(2);
- }
-
- if (waitpid(Pld, &status,0) < 0)
- { warn("waitpid(Pld)"); return 1; }
-
- if(status) {
- warnx("ld returned %x",status);
- return 3;
- }
-
- if (verbose) {
-
- fdn = open(obj ,O_RDONLY);
- if(fdn<0) {
- warn("%s", obj);
- return 3;
- }
-
- /* figure out how big the compressed image is */
- if (read (fdn, (char *)&hdr, sizeof(hdr)) != sizeof(hdr)) {
- warn("%s", obj);
- return 3;
- }
- close(fdn);
-
- size = hdr.a_text + hdr.a_data + hdr.a_bss;
-
- printf("kzip data start address will be: 0x%x\n",offset);
- printf("kzip data end address will be: 0x%x\n",offset+size);
- }
-
- unlink(obj);
- exit(0);
-}
-
-int
-extract (char *file)
-{
- int sz;
- char buf[BUFSIZ];
- struct exec hdr;
-
- if (read (0, (char *)&hdr, sizeof(hdr)) != sizeof(hdr))
- err(2, "%s", file);
- if (hdr.a_magic != ZMAGIC)
- errx(2, "bad magic in file %s, probably not a kernel", file);
- if (lseek (0, N_TXTOFF(hdr), 0) < 0)
- err(2, "%s", file);
-
- sz = N_SYMOFF (hdr) - N_TXTOFF (hdr);
-
- while (sz) {
- int l, n;
-
- l = sz;
- if (l > sizeof(buf))
- l = sizeof(buf);
-
- n = read (0, buf, l);
- if (n != l) {
- if (n == -1)
- err(1, "%s", file);
- else
- errx(1, "unexpected EOF");
- }
-
- write (1, buf, l);
- sz -= l;
- }
- exit(0);
-}
-
-
-char string_names[] = {"_input_data\0_input_len\0"};
-
-struct nlist var_names[2] = { /* Symbol table */
- { { (char*) 4 }, N_EXT|N_TEXT, 0, 0, 0 }, /* _input_data */
- { { (char*) 16 }, N_EXT|N_TEXT, 0, 0, 0 }, /* _input_len */
-};
-
-int
-piggyback(char *file)
-{
- int n, len;
- struct exec hdr; /* object header */
- char image[MAXIMAGE]; /* kernel image buffer */
-
- len = 0;
- while ((n = read (0, &image[len], sizeof(image)-len+1)) > 0)
- len += n;
-
- if (n < 0)
- err(1, "stdin");
-
- if (len >= sizeof(image))
- errx(1, "input too large");
-
- /*
- * Output object header
- */
- memset(&hdr,0,sizeof hdr);
- hdr.a_magic = OMAGIC;
- hdr.a_text = len + sizeof(long);
- hdr.a_syms = sizeof(var_names);
- write (1, (char *)&hdr, sizeof(hdr));
-
- /*
- * Output text segment (compressed system & len)
- */
- write (1, image, len);
- write (1, (char *)&len, sizeof(len));
-
- /*
- * Output symbol table
- */
- var_names[1].n_value = len;
- write (1, (char *)&var_names, sizeof(var_names));
-
- /*
- * Output string table
- */
- len = sizeof(string_names) + sizeof(len);
- write (1, (char *)&len, sizeof(len));
- write (1, string_names, sizeof(string_names));
-
- return (0);
-}
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