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devmnt: deal with partial response for Tversion request in mntversion()

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This commit is contained in:
cinap_lenrek 2016-02-15 01:03:44 +01:00
parent 61dea9012e
commit b450cb7e32
1 changed files with 8 additions and 8 deletions
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16
sys/src/9/port/devmnt.c
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@ -164,7 +164,6 @@ mntversion(Chan *c, char *version, int msize, int returnlen)
unlock(c);
l = devtab[c->type]->write(c, msg, k, oo);
if(l < k){
lock(c);
c->offset -= k - l;
@ -173,13 +172,14 @@ mntversion(Chan *c, char *version, int msize, int returnlen)
}
/* message sent; receive and decode reply */
k = devtab[c->type]->read(c, msg, 8192+IOHDRSZ, c->offset);
if(k <= 0)
error("EOF receiving fversion reply");
lock(c);
c->offset += k;
unlock(c);
for(k = 0; k < BIT32SZ || (k < GBIT32(msg) && k < 8192+IOHDRSZ); k += l){
l = devtab[c->type]->read(c, msg+k, 8192+IOHDRSZ-k, c->offset);
if(l <= 0)
error("EOF receiving fversion reply");
lock(c);
c->offset += l;
unlock(c);
}
l = convM2S(msg, k, &f);
if(l != k)