#define OTHER(rdwr) ((rdwr) == Rd? Wr: Rd)
-static int debug;
static int fixednblock;
static int verb;
static int posix = 1;
static Compress *
compmethod(char *name)
{
- int i, nmlen = strlen(name), sfxlen;
- Compress *cp;
-
- for (cp = comps; cp < comps + nelem(comps); cp++)
- for (i = 0; i < nelem(cp->sfx) && cp->sfx[i]; i++) {
- sfxlen = strlen(cp->sfx[i]);
- if (nmlen > sfxlen &&
- strcmp(cp->sfx[i], name + nmlen - sfxlen) == 0)
- return cp;
+ if (name) {
+ int i, nmlen, sfxlen;
+ Compress *cp;
+
+ nmlen = strlen(name);
+ for (cp = comps; cp < comps + nelem(comps); cp++) {
+ for (i = 0; i < nelem(cp->sfx) && cp->sfx[i]; i++) {
+ sfxlen = strlen(cp->sfx[i]);
+ if (nmlen > sfxlen &&
+ strcmp(cp->sfx[i], name + nmlen - sfxlen) == 0)
+ return cp;
+ }
}
+ }
return docompress? comps: nil;
}
Compress *comp = nil;
Pushstate ps;
- if (usefile && docreate) {
+ if (usefile && docreate)
ar = create(usefile, OWRITE, 0666);
- if (docompress)
- comp = compmethod(usefile);
- } else if (usefile)
+ else if (usefile)
ar = open(usefile, ORDWR);
else
ar = Stdout;
- if (comp)
- ar = push(ar, comp->comp, Output, &ps);
+ if (docreate && docompress) {
+ comp = compmethod(usefile);
+ if (comp)
+ ar = push(ar, comp->comp, Output, &ps);
+ }
if (ar < 0)
sysfatal("can't open archive %s: %r", usefile);
int ar;
char *longname;
Hdr *hp;
- Compress *comp = nil;
+ Compress *comp;
Pushstate ps;
- if (usefile) {
+ if (usefile)
ar = open(usefile, OREAD);
- comp = compmethod(usefile);
- } else
+ else
ar = Stdin;
+ comp = compmethod(usefile);
if (comp)
ar = push(ar, comp->decomp, Input, &ps);
if (ar < 0)