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lib9: dotu fixes in convS2M, convM2S

Browse source 
http://codereview.appspot.com/109049
This commit is contained in:
Tim Newsham 2009-08-20 11:37:24 -04:00
parent e7c5e5ed94
commit 8ff457f56d
3 changed files with 36 additions and 6 deletions
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2
include/fcall.h
View file

@ -44,6 +44,7 @@ struct Fcall
/* 9P2000.u extensions */
int errornum; /* Rerror */
int uidnum; /* Tattach, Tauth */
char *extension; /* Tcreate */
} Fcall;
@ -73,6 +74,7 @@ struct Fcall
#define NOTAG (ushort)~0U /* Dummy tag */
#define NOFID (u32int)~0U /* Dummy fid */
#define NOUID (-1) /* Dummy uid */
#define IOHDRSZ 24 /* ample room for Twrite/Rread header (iounit) */
enum

20
src/lib9/convM2S.c
View file

@ -100,6 +100,13 @@ convM2Su(uchar *ap, uint nap, Fcall *f, int dotu)
p = gstring(p, ep, &f->aname);
if(p == nil)
break;
f->uidnum = NOUID;
if(dotu){
if(p+BIT32SZ > ep)
return 0;
f->uidnum = GBIT32(p);
p += BIT32SZ;
}
break;
case Tattach:
@ -117,6 +124,13 @@ convM2Su(uchar *ap, uint nap, Fcall *f, int dotu)
p = gstring(p, ep, &f->aname);
if(p == nil)
break;
f->uidnum = NOUID;
if(dotu){
if(p+BIT32SZ > ep)
return 0;
f->uidnum = GBIT32(p);
p += BIT32SZ;
}
break;
case Twalk:
@ -233,10 +247,10 @@ convM2Su(uchar *ap, uint nap, Fcall *f, int dotu)
p = gstring(p, ep, &f->ename);
f->errornum = 0;
if(dotu){
if(p+BIT16SZ > ep)
if(p+BIT32SZ > ep)
return 0;
f->errornum = GBIT16(p);
p += BIT16SZ;
f->errornum = GBIT32(p);
p += BIT32SZ;
}
break;

20
src/lib9/convS2M.c
View file

@ -74,6 +74,8 @@ sizeS2Mu(Fcall *f, int dotu)
n += BIT32SZ;
n += stringsz(f->uname);
n += stringsz(f->aname);
if(dotu)
n += BIT32SZ;
break;
case Tattach:
@ -81,6 +83,8 @@ sizeS2Mu(Fcall *f, int dotu)
n += BIT32SZ;
n += stringsz(f->uname);
n += stringsz(f->aname);
if(dotu)
n += BIT32SZ;
break;
case Twalk:
@ -144,7 +148,7 @@ sizeS2Mu(Fcall *f, int dotu)
case Rerror:
n += stringsz(f->ename);
if(dotu)
n += BIT16SZ;
n += BIT32SZ;
break;
case Rflush:
@ -249,6 +253,11 @@ convS2Mu(Fcall *f, uchar *ap, uint nap, int dotu)
p += BIT32SZ;
p = pstring(p, f->uname);
p = pstring(p, f->aname);
if(dotu){
f->uidnum = NOUID;
PBIT32(p, f->uidnum);
p += BIT32SZ;
}
break;
case Tattach:
@ -258,6 +267,11 @@ convS2Mu(Fcall *f, uchar *ap, uint nap, int dotu)
p += BIT32SZ;
p = pstring(p, f->uname);
p = pstring(p, f->aname);
if(dotu){
f->uidnum = NOUID;
PBIT32(p, f->uidnum);
p += BIT32SZ;
}
break;
case Twalk:
@ -344,8 +358,8 @@ convS2Mu(Fcall *f, uchar *ap, uint nap, int dotu)
case Rerror:
p = pstring(p, f->ename);
if(dotu){
PBIT16(p, f->errornum);
p += BIT16SZ;
PBIT32(p, f->errornum);
p += BIT32SZ;
}
break;