Category : C Source Code
Archive : LHA211S.ZIP
Filename : APPEND.C
Output of file : APPEND.C contained in archive : LHA211S.ZIP
append.c -- append to archive
***********************************************************/
#include
#include
#include
#include
#include
#include
#include "lh.h"
#include "intrface.h"
#include "disp.h"
#include "errmes.h"
struct interfacing interface;
void copylzh(void)
{
update_arcstamp();
writehdr();
copyfile(file1, file2, hpb.packed, 0);
}
struct extension {
struct extension *nxt;
char ext[1];
};
struct extension *extptr;
void regext(char *ext)
{
struct extension *p;
if (*ext == '.') ext++;
p = malloc(strlen(ext) + sizeof(struct extension));
p -> nxt = extptr;
strcpy(p -> ext, ext);
extptr = p;
}
static int isarc(char *name)
{
static char arc[6][4] = {"zoo", "arc", "pak", "zip", "lzs", "lzh"};
char *p;
struct extension *q;
int i;
p = strrchr(name, '.');
if (p == NULL) p = name + strlen(name) - 1;
p++;
for (i = 0; i < sizeof(arc) / 3; i++) {
if (*matchfname(arc[i], p) == '\0') return 1;
}
for (q = extptr; q; q = q -> nxt) {
if (*matchfname(q -> ext, p) == '\0') return 1;
}
return 0;
}
void freeze(char *path, char *name)
{
static int method = -1;
hpb.pathname = name;
hpb.filename = getfilename(name);
file3 = myropen(path);
if (method < 0) {
method = 5;
if (flg_o) method = 1;
if (flg_z == 1) method = 0;
if (method > 0) method = encode_alloc(method);
}
_dos_getfileattr(path, &hpb.attr);
if (!flg_a) hpb.attr &= 0x21;
hpb.utc = getfiletime(file3);
hpb.level = flg_h;
hpb.info = 0;
hpb.original = hpb.packed = filelength(fileno(file3));
strcpy(hpb.method, "-lh5-");
interface.method = method;
interface.dicbit = (method == 1 || method == 4) ? 12 : 13;
interface.original = hpb.original;
regdisp("Freezing", path);
disp(0, outredir);
initdisp();
if (hpb.original == 0 || flg_z == 2 && isarc(hpb.filename))
interface.method = 0;
if (interface.method > 0) {
makehdr();
writehdr();
interface.infile = file3;
interface.outfile = file2;
encode(&interface);
if (interface.packed >= interface.original) {
rewind(file3);
fseek(file2, hpb.currentpos, SEEK_SET);
interface.method = 0;
dispname();
initdisp();
}
hpb.packed = interface.packed;
}
hpb.method[3] = interface.method + '0';
if (interface.method == 0) {
makehdr();
writehdr();
copyfile(file3, file2, hpb.original, 1);
}
update_arcstamp();
hpb.filecrc = crc;
adjusthdr();
fclose(file3);
if (ferror(file2)) error(WTERR, filename2);
if (flg_n != 2)
eprintf((flg_l) ? "\r ==> %3d%%\n" : "\r==> %3d%%\n",
ratio(hpb.packed, hpb.original, 2));
}
static void freeze_fb(struct fb far *fp)
{
char *p;
char far *path;
path = fp -> fname;
p = e_malloc(far_strlen(path) + 1);
far_strcpy(p, path);
freeze(p, p + (fp -> cpos - path));
free(p);
}
int append(void)
{
struct fb far *fp;
if ((fp = searchfile(hpb.pathname)) != NULL
&& (flg_c || fp -> time > hpb.utc))
{
freeze_fb(fp);
return 1;
} else {
if (fp != NULL) increment_disp();
copylzh();
return 0;
}
}
int endappend(void)
{
struct fb far *fp;
int modified;
modified = 0;
for (fp = fbuf; fp != NULL; fp = fp -> nxt) {
if (fp -> used == 0){
freeze_fb(fp);
modified++;
}
}
return modified;
}
void deletefiles(void)
{
struct fb far *fp;
for (fp = fbuf; fp != NULL; fp = fp -> nxt) {
far_strcpy(work, fp -> fname);
remove(work);
}
}
int freshen(char far *bdir)
{
char *path, *name;
struct find_t srchbuf;
int flag;
if (bdir) {
path = e_malloc(far_strlen(bdir) + strlen(hpb.pathname) + 1);
far_strcpy(path, bdir);
if (*hpb.pathname == DELIM) {
if (path[1] == ':') {
path[2] = '\0';
} else {
*path = '\0';
}
}
name = path + strlen(path);
strcpy(name, hpb.pathname);
flag = !_dos_findfirst(path, flg_a ? 0x07 : 0x01, &srchbuf);
if (flag) {
if (!flg_c) {
if (hpb.utc >= dos2unix((struct ftime *)&(srchbuf.wr_time)))
flag = 0;
}
}
} else {
flag = 0;
}
if (flag) {
freeze(path, name);
} else {
copylzh();
}
free(path);
return flag;
}
Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!
This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.
But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/