int
open_dump(const char *fn)
{
int result = 0;
close_dump();
if ((dumpfp = fopen(fn, "a")) != 0)
result = 1;
return result;
}
int
set_dump(char *fsname, char *dumpname, dumpspec_t *dsp)
{
char dumppath[MAXPATHLEN+1];
char dumpdir[MAXPATHLEN+1];
int rval;
csd_hdrx_t hdr;
char *dirp;
char *namep;
int fd;
snapspec_t *snapArray = NULL;
uint32_t count;
int i;
memset(dsp, 0, sizeof (dumpspec_t));
/*
* If dumpname is not fully qualified, then prepend
* the directory specified in the dump schedule.
*/
if (dumpname[0] == '/') {
strlcpy(dumpdir, dumpname, sizeof (dumpdir));
dirp = dirname(dumpdir);
namep = dumpdir + (strlen(dirp) + 1);
} else {
/* Find the dump-containing directory */
rval = getdumpdir(fsname, dumpdir);
if (rval) {
Trace(TR_MISC, "set_dump getdumpdir failure %s",
samerrmsg);
return (rval);
}
dirp = dumpdir;
namep = dumpname;
}
rval = get_snap_name(dirp, namep, dumppath, NULL, NULL, NULL);
if (rval != 0) {
return (samrerr(SE_BAD_DUMP_FILE, dumpname));
}
/* Use open64() as gzopen() can't handle very large files */
fd = open64(dumppath, O_RDONLY);
if (fd < 0) {
close_dump(dsp);
Trace(TR_MISC, "set_dump opendmp %s failed.", dumppath);
return (samrerr(SE_NOTAFILE, dumppath));
}
dsp->fildmp = gzdopen(fd, "rb");
if (dsp->fildmp == NULL) {
close_dump(dsp);
Trace(TR_MISC, "set_dump opendmp %s failed.", dumppath);
return (samrerr(SE_NOTAFILE, dumppath));
}
/* Read dump file header to verify and determine byte endiannness */
rval = common_get_csd_header(dsp->fildmp, &dsp->byteswapped, &hdr);
if (rval != 0) {
close_dump(dsp);
Trace(TR_MISC, "Corrupt dump file %s", dumppath);
return (samrerr(SE_BAD_DUMP_FILE, dumppath));
}
dsp->csdversion = hdr.csd_header.version;
dsp->snaptime = hdr.csd_header.time;
strlcat(dsp->fsname, fsname, sizeof (dsp->fsname));
/* find the index information */
rval = get_snapshot_status(fsname, &snapArray, &count);
if (rval == 0) {
snprintf(dsp->snapname, sizeof (dumpdir), "%s/%s", dirp, namep);
for (i = 0; i < count; i++) {
if (strcmp(dsp->snapname, snapArray[i].snapname) == 0) {
if (snapArray[i].snapState == INDEXED) {
dsp->numfiles = snapArray[i].numEntries;
} else {
rval = -1;
}
break;
}
}
if (dsp->numfiles == 0) {
rval = -1;
}
free(snapArray);
}
if (rval != 0) {
close_dump(dsp);
Trace(TR_MISC, "Corrupt dump file %s", dumppath);
return (samrerr(SE_BAD_DUMP_FILE, dumppath));
}
return (0);
}
