cm_HoldSCache(tscp);
symlinkCount = 0;
while (1) {
- tc = *tp++;
+ tc = *tp++;
- /* map Unix slashes into DOS ones so we can interpret Unix
- * symlinks properly
- */
- if (tc == '/') tc = '\\';
-
- if (!haveComponent) {
+ /* map Unix slashes into DOS ones so we can interpret Unix
+ * symlinks properly
+ */
+ if (tc == '/') tc = '\\';
+
+ if (!haveComponent) {
if (tc == '\\') continue;
- else if (tc == 0) {
+ else if (tc == 0) {
if (phase == 1) {
phase = 2;
tp = pathp;
continue;
}
- code = 0;
- break;
- }
- else {
+ code = 0;
+ break;
+ }
+ else {
haveComponent = 1;
- cp = component;
- *cp++ = tc;
+ cp = component;
+ *cp++ = tc;
+ }
+ }
+ else {
+ /* we have a component here */
+ if (tc == 0 || tc == '\\') {
+ /* end of the component; we're at the last
+ * component if tc == 0. However, if the last
+ * is a symlink, we have more to do.
+ */
+ *cp++ = 0; /* add null termination */
+ extraFlag = 0;
+ if ((flags & CM_FLAG_DIRSEARCH) && tc == 0)
+ extraFlag = CM_FLAG_NOMOUNTCHASE;
+ code = cm_Lookup(tscp, component,
+ flags | extraFlag,
+ userp, reqp, &nscp);
+
+ if (code) {
+ cm_ReleaseSCache(tscp);
+ if (psp) cm_FreeSpace(psp);
+ return code;
+ }
+ haveComponent = 0; /* component done */
+ dirScp = tscp; /* for some symlinks */
+ tscp = nscp; /* already held */
+ if (tc == 0 && !(flags & CM_FLAG_FOLLOW) && phase == 2) {
+ code = 0;
+ cm_ReleaseSCache(dirScp);
+ break;
+ }
+
+ /* now, if tscp is a symlink, we should follow
+ * it and assemble the path again.
+ */
+ lock_ObtainMutex(&tscp->mx);
+ code = cm_SyncOp(tscp, NULL, userp, reqp, 0,
+ CM_SCACHESYNC_GETSTATUS
+ | CM_SCACHESYNC_NEEDCALLBACK);
+ if (code) {
+ lock_ReleaseMutex(&tscp->mx);
+ cm_ReleaseSCache(tscp);
+ cm_ReleaseSCache(dirScp);
+ break;
+ }
+ if (tscp->fileType == CM_SCACHETYPE_SYMLINK) {
+ /* this is a symlink; assemble a new buffer */
+ lock_ReleaseMutex(&tscp->mx);
+ if (symlinkCount++ >= 16) {
+ cm_ReleaseSCache(tscp);
+ cm_ReleaseSCache(dirScp);
+ if (psp) cm_FreeSpace(psp);
+ return CM_ERROR_TOOBIG;
}
- }
- else {
- /* we have a component here */
- if (tc == 0 || tc == '\\') {
- /* end of the component; we're at the last
- * component if tc == 0. However, if the last
- * is a symlink, we have more to do.
- */
- *cp++ = 0; /* add null termination */
- extraFlag = 0;
- if ((flags & CM_FLAG_DIRSEARCH) && tc == 0)
- extraFlag = CM_FLAG_NOMOUNTCHASE;
- code = cm_Lookup(tscp, component,
- flags | extraFlag,
- userp, reqp, &nscp);
- if (code) {
- cm_ReleaseSCache(tscp);
- if (psp) cm_FreeSpace(psp);
- return code;
- }
- haveComponent = 0; /* component done */
- dirScp = tscp; /* for some symlinks */
- tscp = nscp; /* already held */
- if (tc == 0 && !(flags & CM_FLAG_FOLLOW) && phase == 2) {
- code = 0;
- cm_ReleaseSCache(dirScp);
- break;
- }
-
- /* now, if tscp is a symlink, we should follow
- * it and assemble the path again.
- */
- lock_ObtainMutex(&tscp->mx);
- code = cm_SyncOp(tscp, NULL, userp, reqp, 0,
- CM_SCACHESYNC_GETSTATUS
- | CM_SCACHESYNC_NEEDCALLBACK);
- if (code) {
- lock_ReleaseMutex(&tscp->mx);
- cm_ReleaseSCache(tscp);
- cm_ReleaseSCache(dirScp);
- break;
- }
- if (tscp->fileType == CM_SCACHETYPE_SYMLINK) {
- /* this is a symlink; assemble a new buffer */
- lock_ReleaseMutex(&tscp->mx);
- if (symlinkCount++ >= 16) {
- cm_ReleaseSCache(tscp);
- cm_ReleaseSCache(dirScp);
- if (psp) cm_FreeSpace(psp);
- return CM_ERROR_TOOBIG;
- }
- if (tc == 0) restp = "";
- else restp = tp;
- code = cm_AssembleLink(tscp, restp,
- &linkScp, &tempsp, userp, reqp);
- if (code) {
- /* something went wrong */
- cm_ReleaseSCache(tscp);
- cm_ReleaseSCache(dirScp);
- break;
- }
-
- /* otherwise, tempsp has the new path,
- * and linkScp is the new root from
- * which to interpret that path.
- * Continue with the namei processing,
- * also doing the bookkeeping for the
- * space allocation and tracking the
- * vnode reference counts.
- */
- if (psp) cm_FreeSpace(psp);
- psp = tempsp;
- tp = psp->data;
- cm_ReleaseSCache(tscp);
- tscp = linkScp; /* already held
- * by AssembleLink */
- /* now, if linkScp is null, that's
- * AssembleLink's way of telling us that
- * the sym link is relative to the dir
- * containing the link. We have a ref
- * to it in dirScp, and we hold it now
- * and reuse it as the new spot in the
- * dir hierarchy.
- */
- if (tscp == NULL) {
- cm_HoldSCache(dirScp);
- tscp = dirScp;
- }
- } /* if we have a sym link */
- else {
- /* not a symlink, we may be done */
- lock_ReleaseMutex(&tscp->mx);
- if (tc == 0) {
- if (phase == 1) {
- phase = 2;
- tp = pathp;
- continue;
- }
- cm_ReleaseSCache(dirScp);
- code = 0;
- break;
- }
- }
- cm_ReleaseSCache(dirScp);
- } /* end of a component */
- else *cp++ = tc;
- } /* we have a component */
- } /* big while loop over all components */
+ if (tc == 0) restp = "";
+ else restp = tp;
+ code = cm_AssembleLink(tscp, restp, &linkScp, &tempsp, userp, reqp);
+ if (code) {
+ /* something went wrong */
+ cm_ReleaseSCache(tscp);
+ cm_ReleaseSCache(dirScp);
+ break;
+ }
+
+ /* otherwise, tempsp has the new path,
+ * and linkScp is the new root from
+ * which to interpret that path.
+ * Continue with the namei processing,
+ * also doing the bookkeeping for the
+ * space allocation and tracking the
+ * vnode reference counts.
+ */
+ if (psp) cm_FreeSpace(psp);
+ psp = tempsp;
+ tp = psp->data;
+ cm_ReleaseSCache(tscp);
+ tscp = linkScp; /* already held
+ * by AssembleLink */
+ /* now, if linkScp is null, that's
+ * AssembleLink's way of telling us that
+ * the sym link is relative to the dir
+ * containing the link. We have a ref
+ * to it in dirScp, and we hold it now
+ * and reuse it as the new spot in the
+ * dir hierarchy.
+ */
+ if (tscp == NULL) {
+ cm_HoldSCache(dirScp);
+ tscp = dirScp;
+ }
+ } /* if we have a sym link */
+ else {
+ /* not a symlink, we may be done */
+ lock_ReleaseMutex(&tscp->mx);
+ if (tc == 0) {
+ if (phase == 1) {
+ phase = 2;
+ tp = pathp;
+ continue;
+ }
+ cm_ReleaseSCache(dirScp);
+ code = 0;
+ break;
+ }
+ }
+ cm_ReleaseSCache(dirScp);
+ } /* end of a component */
+ else *cp++ = tc;
+ } /* we have a component */
+ } /* big while loop over all components */
/* already held */
- if (psp) cm_FreeSpace(psp);
+ if (psp) cm_FreeSpace(psp);
if (code == 0) *outScpp = tscp;
return code;
}
git://git.openafs.org / openafs.git / blobdiff