/*
* stream the members in a temp file to the file referenced by 'fd'.
*/
void
arstream(int fd, Arfile *ap)
{
Armember *bp;
int i;
char buf[8192];
if (ap->paged) { /* copy from disk */
seek(ap->fd, 0, 0);
for (;;) {
i = read(ap->fd, buf, sizeof(buf));
if (i < 0)
rderr();
if (i == 0)
break;
if (write(fd, buf, i) != i)
wrerr();
}
close(ap->fd);
ap->paged = 0;
}
/* dump the in-core buffers */
for (bp = ap->head; bp; bp = bp->next) {
if (!arwrite(fd, bp))
wrerr();
}
}
/*
* create an archive and set its header
*/
int
arcreate(char *arname)
{
int fd;
fd = create(arname, OWRITE, 0664);
if(fd < 0) {
fprint(2, "ar: cannot create %s: %r\n", arname);
exits("error");
}
if(write(fd, ARMAG, SARMAG) != SARMAG)
wrerr();
return fd;
}
/*
* Write the defined symbols to the symdef file
*/
void
wrsym(Biobuf *bp, int offset, Arsymref *as)
{
int off;
while(as) {
Bputc(bp, as->type);
off = as->offset+offset;
Bputc(bp, off);
Bputc(bp, off>>8);
Bputc(bp, off>>16);
Bputc(bp, off>>24);
if (Bwrite(bp, as->name, as->len+1) != as->len+1)
wrerr();
as = as->next;
}
}
void
rl(int fd)
{
Biobuf b;
char *cp;
struct ar_hdr a;
long len;
Binit(&b, fd, OWRITE);
Bseek(&b,seek(fd,0,1), 0);
len = symdefsize;
if(len&01)
len++;
sprint(a.date, "%-12ld", time(0));
sprint(a.uid, "%-6d", 0);
sprint(a.gid, "%-6d", 0);
sprint(a.mode, "%-8o", 0644);
sprint(a.size, "%-10ld", len);
strncpy(a.fmag, ARFMAG, 2);
strcpy(a.name, symdef);
for (cp = strchr(a.name, 0); /* blank pad on right */
cp < a.name+sizeof(a.name); cp++)
*cp = ' ';
if(HEADER_IO(Bwrite, &b, a))
wrerr();
len += Boffset(&b);
if (astart) {
wrsym(&b, len, astart->sym);
len += astart->size;
}
if(amiddle) {
wrsym(&b, len, amiddle->sym);
len += amiddle->size;
}
if(aend)
wrsym(&b, len, aend->sym);
if(symdefsize&0x01)
Bputc(&b, 0);
Bterm(&b);
}
void
xcmd(char *arname, int count, char **files)
{
int fd, f, mode, i;
Armember *bp;
Dir dx;
fd = openar(arname, OREAD, 0);
Binit(&bar, fd, OREAD);
Bseek(&bar,seek(fd,0,1), 1);
i = 0;
while (bp = getdir(&bar)) {
if(count == 0 || match(count, files)) {
mode = strtoul(bp->hdr.mode, 0, 8) & 0777;
f = create(file, OWRITE, mode);
if(f < 0) {
fprint(2, "ar: %s cannot create\n", file);
skip(&bar, bp->size);
} else {
mesg('x', file);
arcopy(&bar, 0, bp);
if (write(f, bp->member, bp->size) < 0)
wrerr();
if(oflag) {
nulldir(&dx);
dx.atime = bp->date;
dx.mtime = bp->date;
if(dirwstat(file, &dx) < 0)
perror(file);
}
free(bp->member);
close(f);
}
free(bp);
if (count && ++i >= count)
break;
} else {
skip(&bar, bp->size);
free(bp);
}
}
close(fd);
}
void
qcmd(char *arname, int count, char **files)
{
int fd, i;
Armember *bp;
Biobuf *bfile;
if(aflag || bflag) {
fprint(2, "ar: abi not allowed with q\n");
exits("error");
}
fd = openar(arname, ORDWR, 1);
if (fd < 0) {
if(!cflag)
fprint(2, "ar: creating %s\n", arname);
fd = arcreate(arname);
}
Binit(&bar, fd, OREAD);
Bseek(&bar,seek(fd,0,1), 1);
/* leave note group behind when writing archive; i.e. sidestep interrupts */
rfork(RFNOTEG);
Bseek(&bar, 0, 2);
bp = newmember();
for(i=0; i<count && files[i]; i++) {
file = files[i];
files[i] = 0;
bfile = Bopen(file, OREAD);
if(!bfile)
fprint(2, "ar: %s cannot open\n", file);
else {
mesg('q', file);
armove(bfile, 0, bp);
if (!arwrite(fd, bp))
wrerr();
free(bp->member);
bp->member = 0;
Bterm(bfile);
}
}
free(bp);
close(fd);
}
void
pcmd(char *arname, int count, char **files)
{
int fd;
Armember *bp;
fd = openar(arname, OREAD, 0);
Binit(&bar, fd, OREAD);
Bseek(&bar,seek(fd,0,1), 1);
while(bp = getdir(&bar)) {
if(count == 0 || match(count, files)) {
if(vflag)
print("\n<%s>\n\n", file);
arcopy(&bar, 0, bp);
if (write(1, bp->member, bp->size) < 0)
wrerr();
} else
skip(&bar, bp->size);
free(bp);
}
close(fd);
}
