/* archive.c
- Part of the swftools installer.
+ Part of the rfx installer.
- Copyright (c) 2004 Matthias Kramm <kramm@quiss.org>
+ Copyright (c) 2004-2008 Matthias Kramm <kramm@quiss.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <sys/stat.h>
#endif
#include "archive.h"
-#include "depack.h"
+#include "utils.h"
-
-typedef struct _reader
-{
- unsigned char*mem;
- int readpos;
-} reader_t;
-
-static void myread(void*self, void*mem, int len)
-{
- /*if(readpos+len >= sizeof(crndata)) {
- len = sizeof(crndata) - readpos;
- }*/
- reader_t*r = (reader_t*)self;
- memcpy(mem, r->mem+r->readpos, len);
- r->readpos += len;
- //return len;
-}
-
-typedef struct _writer
-{
- unsigned char*mem;
- int memlen;
-} writer_t;
-
-static void mywrite(void*self, void*buf, int len)
-{
- writer_t*w = (writer_t*)self;
- memcpy(w->mem+w->memlen, buf, len);
- w->memlen += len;
-}
+#ifdef ZLIB
+#include "../z/zlib.h"
+#define ZLIB_BUFFER_SIZE 16384
+#else
+#include "lzma/LzmaDecode.h"
+#endif
static int verbose = 0;
static void msg(char*format, ...)
if(!verbose)
return;
va_start(arglist, format);
- vsprintf(buf, format, arglist);
+ vsnprintf(buf, sizeof(buf)-1, format, arglist);
va_end(arglist);
l = strlen(buf);
while(l && buf[l-1]=='\n') {
fflush(stdout);
}
-static int create_directory(char*path,statusfunc_t f)
+
+typedef struct _reader
+{
+ int (*read)(struct _reader*, void*data, int len);
+ void (*dealloc)(struct _reader*);
+ void *internal;
+ int pos;
+} reader_t;
+
+/* ---------------------------- mem reader ------------------------------- */
+
+struct memread_t
+{
+ unsigned char*data;
+ int length;
+};
+static int reader_memread(reader_t*reader, void* data, int _len)
+{
+ struct memread_t*mr = (struct memread_t*)reader->internal;
+
+ int len = _len;
+ if(mr->length - reader->pos < len) {
+ len = mr->length - reader->pos;
+ }
+ memcpy(data, &mr->data[reader->pos], len);
+ msg("at pos %d, asked to read %d bytes, did read %d bytes\n", reader->pos, _len, len);
+ reader->pos += len;
+ return len;
+}
+static void reader_memread_dealloc(reader_t*reader)
+{
+ if(reader->internal)
+ free(reader->internal);
+ memset(reader, 0, sizeof(reader_t));
+}
+reader_t*reader_init_memreader(void*newdata, int newlength)
+{
+ reader_t*r = malloc(sizeof(reader_t));
+ struct memread_t*mr = (struct memread_t*)malloc(sizeof(struct memread_t));
+ mr->data = (unsigned char*)newdata;
+ mr->length = newlength;
+ r->read = reader_memread;
+ r->dealloc = reader_memread_dealloc;
+ r->internal = (void*)mr;
+ r->pos = 0;
+ return r;
+}
+/* ---------------------------- lzma reader -------------------------- */
+typedef struct
+{
+ reader_t*input;
+ CLzmaDecoderState state;
+ unsigned char*mem;
+ int pos;
+ int len;
+ int lzmapos;
+ int available;
+} lzma_t;
+
+static void reader_lzma_dealloc(reader_t*reader)
+{
+ lzma_t*i = (lzma_t*)reader->internal;
+ free(i->state.Probs);i->state.Probs = 0;
+ free(i->state.Dictionary);i->state.Dictionary = 0;
+ free(reader->internal);reader->internal=0;
+}
+
+static int reader_lzma_read(reader_t*reader, void*data, int len)
+{
+ lzma_t*i = (lzma_t*)reader->internal;
+
+ SizeT processed = 0;
+ if(len>i->available)
+ len = i->available;
+ int ret = LzmaDecode(&i->state,
+ &i->mem[i->pos], i->len-i->pos, &i->lzmapos,
+ data, len, &processed);
+ i->available -= processed;
+ i->pos += i->lzmapos;
+ return processed;
+}
+
+reader_t* reader_init_lzma(void*mem, int len)
+{
+ reader_t*r = malloc(sizeof(reader_t));
+ memset(r, 0, sizeof(reader_t));
+
+ lzma_t*i = (lzma_t*)malloc(sizeof(lzma_t));
+ memset(i, 0, sizeof(lzma_t));
+ r->internal = i;
+ r->read = reader_lzma_read;
+ r->dealloc = reader_lzma_dealloc;
+ r->pos = 0;
+
+ i->mem = mem;
+ i->len = len;
+ i->lzmapos = 0;
+
+ if(LzmaDecodeProperties(&i->state.Properties, mem, LZMA_PROPERTIES_SIZE)) {
+ printf("Couldn't decode properties\n");
+ return 0;
+ }
+ i->pos += LZMA_PROPERTIES_SIZE;
+
+ unsigned char*l = &i->mem[i->pos];
+ i->available = (long long)l[0] | (long long)l[1]<<8 | (long long)l[2]<<16 | (long long)l[3]<<24 |
+ (long long)l[4]<<32 | (long long)l[5]<<40 | (long long)l[6]<<48 | (long long)l[7]<<56;
+ i->pos += 8; //uncompressed size
+
+ i->state.Probs = (CProb *)malloc(LzmaGetNumProbs(&i->state.Properties) * sizeof(CProb));
+ i->state.Dictionary = (unsigned char *)malloc(i->state.Properties.DictionarySize);
+ LzmaDecoderInit(&i->state);
+
+ return r;
+}
+
+#ifdef ZLIB
+/* ---------------------------- zlibinflate reader -------------------------- */
+struct zlibinflate_t
+{
+ z_stream zs;
+ reader_t*input;
+ unsigned char readbuffer[ZLIB_BUFFER_SIZE];
+};
+
+static void zlib_error(int ret, char* msg, z_stream*zs)
+{
+ fprintf(stderr, "%s: zlib error (%d): last zlib error: %s\n", msg, ret, zs->msg?zs->msg:"unknown");
+ perror("errno:");
+ exit(1);
+}
+
+static int reader_zlibinflate(reader_t*reader, void* data, int len)
+{
+ struct zlibinflate_t*z = (struct zlibinflate_t*)reader->internal;
+ int ret;
+ if(!z) {
+ return 0;
+ }
+ if(!len)
+ return 0;
+
+ z->zs.next_out = (Bytef *)data;
+ z->zs.avail_out = len;
+
+ while(1) {
+ if(!z->zs.avail_in) {
+ z->zs.avail_in = z->input->read(z->input, z->readbuffer, ZLIB_BUFFER_SIZE);
+ z->zs.next_in = z->readbuffer;
+ }
+ if(z->zs.avail_in)
+ ret = inflate(&z->zs, Z_NO_FLUSH);
+ else
+ ret = inflate(&z->zs, Z_FINISH);
+
+ if (ret != Z_OK &&
+ ret != Z_STREAM_END) zlib_error(ret, "bitio:inflate_inflate", &z->zs);
+
+ if (ret == Z_STREAM_END) {
+ int pos = z->zs.next_out - (Bytef*)data;
+ ret = inflateEnd(&z->zs);
+ if (ret != Z_OK) zlib_error(ret, "bitio:inflate_end", &z->zs);
+ free(reader->internal);
+ reader->internal = 0;
+ reader->pos += pos;
+ return pos;
+ }
+ if(!z->zs.avail_out) {
+ break;
+ }
+ }
+ reader->pos += len;
+ return len;
+}
+static void reader_zlibinflate_dealloc(reader_t*reader)
+{
+ struct zlibinflate_t*z = (struct zlibinflate_t*)reader->internal;
+ if(z) {
+ if(z->input) {
+ z->input->dealloc(z->input);z->input = 0;
+ }
+ inflateEnd(&z->zs);
+ free(reader->internal);
+ }
+ memset(reader, 0, sizeof(reader_t));
+}
+reader_t* reader_init_zlibinflate(reader_t*input)
+{
+ reader_t*r = malloc(sizeof(reader_t));
+ struct zlibinflate_t*z;
+ int ret;
+ memset(r, 0, sizeof(reader_t));
+ z = (struct zlibinflate_t*)malloc(sizeof(struct zlibinflate_t));
+ memset(z, 0, sizeof(struct zlibinflate_t));
+ r->internal = z;
+ r->read = reader_zlibinflate;
+ r->dealloc = reader_zlibinflate_dealloc;
+ r->pos = 0;
+ z->input = input;
+ memset(&z->zs,0,sizeof(z_stream));
+ z->zs.zalloc = Z_NULL;
+ z->zs.zfree = Z_NULL;
+ z->zs.opaque = Z_NULL;
+ ret = inflateInit(&z->zs);
+ if (ret != Z_OK) zlib_error(ret, "bitio:inflate_init", &z->zs);
+ return r;
+}
+
+/* -------------------------------------------------------------------------- */
+#endif
+
+
+static int create_directory(char*path,status_t* f)
{
if(!path || !*path || (*path=='.' && (!path[1] || path[1]=='.')))
return 1; //nothing to do
#endif
if(mkdir(path,0755)<0) {
+ perror("mkdir");
char buf[1024];
sprintf(buf, "create directory \"%s\" FAILED", path);
- f(-1, buf);
+ f->error(buf);
return 0;
}
return 1;
}
-static int goto_directory(char*path,statusfunc_t f)
+static int goto_directory(char*path,status_t* f)
{
if(chdir(path)<0) {
char buf[1024];
sprintf(buf, "changing to directory \"%s\" FAILED", path);
- f(-1, buf);
+ f->error(buf);
return 0;
}
return 1;
//msg("directory name of \"%s\" is \"%s\"", filename, basenamebuf);
return basenamebuf;
}
-static int write_file(char*filename, void*mem, int len,statusfunc_t f)
+static int write_file(char*filename, reader_t*r, int len,status_t* f)
{
while(filename[0]=='.' && (filename[1]=='/' || filename[1]=='\\'))
filename+=2;
p++;
}
+ f->new_file(filename);
+
msg("create file \"%s\" (%d bytes)", filename, len);
FILE*fo = fopen(filename, "wb");
+
if(!fo) {
char buf[1024];
sprintf(buf, "Couldn't create file %s", filename);
- f(-1, buf);
+ f->error(buf);
free(filename);
return 0;
}
- fwrite(mem, len, 1, fo);
+ int pos=0;
+ char buf[4096];
+ while(pos<len) {
+ int l = 4096;
+ if(pos+l>len)
+ l = len-pos;
+ int n = r->read(r, buf, l);
+ if(n < l) {
+ char buf[1024];
+ sprintf(buf, "Couldn't read byte %d (pos+%d) from input buffer for file %s", pos+n, n, filename);
+ f->error(buf);
+ return 0;
+ }
+ fwrite(buf, l, 1, fo);
+ pos+=l;
+ }
fclose(fo);
free(filename);
return 1;
}
-int unpack_archive(void*data, char*destdir, statusfunc_t f)
+int unpack_archive(void*data, int len, char*destdir, status_t* f)
{
- depack_t d;
-
- reader_t r;
- r.mem = (unsigned char*)data;
- r.readpos = 0;
-
- f(0, "Reading compressed data");
- depack_init(&d,&r,myread);
-
- writer_t w;
- w.mem = malloc(d.size);
- w.memlen = 0;
-
- f(0, "Decompressing data");
- depack_process(&d,&w,mywrite);
- depack_destroy(&d);
+ reader_t*m = reader_init_memreader(data, len);
+#ifdef ZLIB
+ reader_t*z = reader_init_zlibinflate(m);
+#else
+ reader_t*z = reader_init_lzma(data, len);
+#endif
+ if(!z) {
+ f->error("Couldn't decompress installation files");
+ return 0;
+ }
- f(0, "Creating installation directory");
+ f->message("Creating installation directory");
if(!create_directory(destdir,f)) return 0;
- f(0, "Changing to installation directory");
- if(!goto_directory(destdir,f)) return 0;
- f(0, "Copying files...");
+ printf("%s\n", destdir);
+
+ unsigned b1=0,b2=0,b3=0,b4=0;
+ int l = 0;
+ l+=z->read(z, &b1, 1);
+ l+=z->read(z, &b2, 1);
+ l+=z->read(z, &b3, 1);
+ l+=z->read(z, &b4, 1);
+ if(l<4)
+ return 0;
+ /* read size */
+ int num = b1|b2<<8|b3<<16|b4<<24;
+
+ f->status(0, num);
+
+ f->message("Uncompressing files...");
int pos = 0;
- while(pos<w.memlen) {
- unsigned char*mem = w.mem;
+ while(1) {
/* read id */
unsigned char id[4];
id[3] = 0;
- memcpy(id, &mem[pos], 3);
- pos += 3;
+ if(z->read(z, id, 3)<3) {
+ f->error("Unexpected end of archive");
+ return 0;
+ }
+ if(!strcmp(id, "END"))
+ break;
+
+ unsigned b1=0,b2=0,b3=0,b4=0;
+ int l = 0;
+ l+=z->read(z, &b1, 1);
+ l+=z->read(z, &b2, 1);
+ l+=z->read(z, &b3, 1);
+ l+=z->read(z, &b4, 1);
+ if(l<4)
+ return 0;
/* read size */
- int len = mem[pos]|mem[pos+1]<<8|mem[pos+2]<<16|mem[pos+3]<<24;
- pos += 4;
+ int len = b1|b2<<8|b3<<16|b4<<24;
/* read filename */
- char*filename = &mem[pos];
- int l = strlen(filename);
- pos+=l+1;
+ unsigned char filename_len;
+ z->read(z, &filename_len, 1);
+ char*filename = malloc(filename_len+1);
+ z->read(z, filename, filename_len);
+ filename[(int)filename_len] = 0;
+
+ while(filename[0]=='.' && (filename[1]=='/' || filename[1]=='\\'))
+ filename+=2;
+ filename = concatPaths(destdir, filename);
+
+ f->status(++pos, num);
if(verbose) printf("[%s] %s %d\n", id, filename, len);
char buf[2048];
sprintf(buf, "[%s] %s (%d bytes)", id, filename, len);
- f(0, buf);
- if(*(U32*)id == *(U32*)"DIR") {
+ f->message(buf);
+ if(!strcmp(id, "DIR")) {
+ f->new_directory(filename);
if(!create_directory(filename,f)) return 0;
} else {
if(!create_directory(get_directory(filename),f)) return 0;
- if(!write_file(filename,mem+pos,len,f)) return 0;
+ if(!write_file(filename,z,len,f)) return 0;
}
-
- pos += len;
}
- f(0, "Finishing Installation");
+ f->message("Finishing Installation");
return 1;
}
-
git.asbjorn.biz / swftools.git / blobdiff