afs_int32
bc_UpdateHosts(void)
{
struct udbHandleS *uhptr = &udbHandle;
udbClientTextP ctPtr;
afs_int32 code;
int lock = 0;
/* lock schedules and check validity */
ctPtr = &bc_globalConfig->configText[TB_TAPEHOSTS];
code = bc_CheckTextVersion(ctPtr);
if (code != BC_VERSIONMISMATCH) {
ERROR(code); /* Version matches or some other error */
}
/* Must update the hosts */
/* If we are not already locked, then lock it now */
if (ctPtr->lockHandle == 0) {
code = bc_LockText(ctPtr);
if (code)
ERROR(code);
lock = 1;
}
if (ctPtr->textVersion != -1) {
afs_com_err(whoami, 0, "obsolete tapehosts - updating");
bc_ClearHosts();
}
/* open a temp file to store the config text received from buserver *
* The open file stream is stored in ctPtr->textStream */
code =
bc_openTextFile(ctPtr,
&bc_globalConfig->tmpTextFileNames[TB_TAPEHOSTS][0]);
if (code)
ERROR(code);
/* now get a fresh set of information from the database */
code = bcdb_GetTextFile(ctPtr);
if (code)
ERROR(code);
/* fetch the version number */
code =
ubik_BUDB_GetTextVersion(uhptr->uh_client, 0, ctPtr->textType,
&ctPtr->textVersion);
if (code)
ERROR(code);
/* parse the file */
code = bc_ParseHosts();
if (code)
ERROR(code);
error_exit:
if (lock && ctPtr->lockHandle)
bc_UnlockText(ctPtr);
return (code);
}
int
bc_CheckTextVersion(udbClientTextP ctPtr)
{
afs_int32 code;
afs_uint32 tversion;
if (ctPtr->textVersion == -1)
return (BC_VERSIONMISMATCH);
code =
ubik_BUDB_GetTextVersion(udbHandle.uh_client, 0,
ctPtr->textType, &tversion);
if (code)
return (code);
if (tversion != ctPtr->textVersion)
return (BC_VERSIONMISMATCH);
return (0);
}
afs_int32
bc_UpdateDumpSchedule(void)
{
struct bc_dumpSchedule *dumpPtr, *nextDumpPtr;
struct udbHandleS *uhptr = &udbHandle;
udbClientTextP ctPtr;
afs_int32 code;
int lock = 0;
/* lock schedules and check validity */
ctPtr = &bc_globalConfig->configText[TB_DUMPSCHEDULE];
code = bc_CheckTextVersion(ctPtr);
if (code != BC_VERSIONMISMATCH) {
ERROR(code); /* Version matches or some other error */
}
/* Must update the dump schedules */
/* If we are not already locked, then lock it now */
if (!ctPtr->lockHandle) {
code = bc_LockText(ctPtr);
if (code)
ERROR(code);
lock = 1;
}
if (ctPtr->textVersion != -1) {
printf("backup: obsolete dump schedule - updating\n");
/* clear all old schedule information */
dumpPtr = bc_globalConfig->dsched;
while (dumpPtr) {
nextDumpPtr = dumpPtr->next;
free(dumpPtr);
dumpPtr = nextDumpPtr;
}
bc_globalConfig->dsched = 0;;
}
/* open a temp file to store the config text received from buserver *
* The open file stream is stored in ctPtr->textStream */
code =
bc_openTextFile(ctPtr,
&bc_globalConfig->
tmpTextFileNames[TB_DUMPSCHEDULE][0]);
if (code)
ERROR(code);
/* now get a fresh set of information from the database */
code = bcdb_GetTextFile(ctPtr);
if (code)
ERROR(code);
/* fetch the version number */
code =
ubik_BUDB_GetTextVersion(uhptr->uh_client, 0, ctPtr->textType,
&ctPtr->textVersion);
if (code)
ERROR(code);
/* parse the file */
code = bc_ParseDumpSchedule();
if (code)
ERROR(code);
/* rebuild the tree */
code = bc_ProcessDumpSchedule(bc_globalConfig);
if (code)
ERROR(code);
error_exit:
if (lock && ctPtr->lockHandle)
bc_UnlockText(ctPtr);
return (code);
}
int
bcdb_GetTextFile(udbClientTextP ctPtr)
{
afs_int32 bufferSize;
afs_int32 offset, nextOffset;
charListT charList;
afs_int32 code = 0;
/* Initialize charlistT_val. We try to deallocate this structure based on
* this */
memset((void *)&charList, 0, sizeof(charList));
/* check params and cleanup any previous state */
if (ctPtr->lockHandle == 0)
ERROR(BUDB_INTERNALERROR);
if (ctPtr->textStream == NULL) /* Should have an open stream */
ERROR(BUDB_INTERNALERROR);
/* allocate a buffer */
bufferSize = 1024;
charList.charListT_val = malloc(bufferSize);
if (charList.charListT_val == 0)
ERROR(BUDB_INTERNALERROR);
charList.charListT_len = bufferSize;
nextOffset = 0;
ctPtr->textSize = 0;
while (nextOffset != -1) {
offset = nextOffset;
charList.charListT_len = bufferSize;
code =
ubik_BUDB_GetText(udbHandle.uh_client, 0, ctPtr->lockHandle,
ctPtr->textType, bufferSize, offset, &nextOffset,
&charList);
if (code)
ERROR(code);
code =
fwrite(charList.charListT_val, sizeof(char),
charList.charListT_len, ctPtr->textStream);
if (ferror(ctPtr->textStream))
ERROR(BUDB_INTERNALERROR);
ctPtr->textSize += charList.charListT_len;
}
/* get text version */
code =
ubik_BUDB_GetTextVersion(udbHandle.uh_client, 0,
ctPtr->textType, &ctPtr->textVersion);
if (code)
ERROR(code);
normal_exit:
fflush(ctPtr->textStream); /* debug */
/* exit, leaving the configuration text file open */
if (charList.charListT_val)
free(charList.charListT_val);
return (code);
error_exit:
if (ctPtr->textStream != NULL) {
fclose(ctPtr->textStream);
ctPtr->textStream = NULL;
}
goto normal_exit;
}
