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better error messages

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This commit is contained in:
rsc 2005-07-13 10:50:44 +00:00
parent 2e9749ec60
commit 2d70c581f4
2 changed files with 21 additions and 9 deletions
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20
src/lib9pclient/fs.c
View file

@ -31,8 +31,10 @@ fsinit(int fd)
fmtinstall('M', dirmodefmt);
fs = mallocz(sizeof(CFsys), 1);
if(fs == nil)
if(fs == nil){
werrstr("mallocz: %r");
return nil;
}
fs->fd = fd;
fs->ref = 1;
fs->mux.aux = fs;
@ -48,6 +50,8 @@ fsinit(int fd)
strcpy(fs->version, "9P2000");
if((n = fsversion(fs, 8192, fs->version, sizeof fs->version)) < 0){
werrstr("fsversion: %r");
fprint(2, "%r\n");
_fsunmount(fs);
return nil;
}
@ -150,8 +154,10 @@ fsversion(CFsys *fs, int msize, char *version, int nversion)
r = _fsrpc(fs, &tx, &rx, &freep);
fs->mux.mintag = oldmintag;
fs->mux.maxtag = oldmaxtag;
if(r < 0)
if(r < 0){
werrstr("fsrpc: %r");
return -1;
}
strecpy(version, version+nversion, rx.version);
free(freep);
@ -212,19 +218,21 @@ _fsrpc(CFsys *fs, Fcall *tx, Fcall *rx, void **freep)
nn = convS2M(tx, tpkt, n);
if(nn != n){
free(tpkt);
werrstr("libfs: sizeS2M convS2M mismatch");
werrstr("lib9pclient: sizeS2M convS2M mismatch");
fprint(2, "%r\n");
return -1;
}
rpkt = muxrpc(&fs->mux, tpkt);
free(tpkt);
if(rpkt == nil)
if(rpkt == nil){
werrstr("muxrpc: %r");
return -1;
}
n = GBIT32((uchar*)rpkt);
nn = convM2S(rpkt, n, rx);
if(nn != n){
free(rpkt);
werrstr("libfs: convM2S packet size mismatch %d %d", n, nn);
werrstr("lib9pclient: convM2S packet size mismatch %d %d", n, nn);
fprint(2, "%r\n");
return -1;
}
@ -331,7 +339,7 @@ _fsrecv(Mux *mux)
n = GBIT32(buf);
pkt = malloc(n+4);
if(pkt == nil){
fprint(2, "libfs out of memory reading 9p packet; here comes trouble\n");
fprint(2, "lib9pclient out of memory reading 9p packet; here comes trouble\n");
return nil;
}
PBIT32(pkt, n);

10
src/lib9pclient/ns.c
View file

@ -11,13 +11,17 @@ nsinit(char *name)
int fd;
ns = getns();
if(ns == nil)
if(ns == nil){
werrstr("no name space");
return nil;
}
addr = smprint("unix!%s/%s", ns, name);
free(ns);
if(addr == nil)
if(addr == nil){
werrstr("smprint: %r");
return nil;
}
fd = dial(addr, 0, 0, 0);
if(fd < 0){
@ -27,7 +31,7 @@ nsinit(char *name)
}
free(addr);
fcntl(fd, F_SETFL, FD_CLOEXEC);
fcntl(fd, F_SETFD, FD_CLOEXEC);
return fsinit(fd);
}