/* This procedure returns the value as the original DAS string */
OCerror
oc_inq_attrstrings(OCconnection conn, OCobject node0, unsigned int i,
char** namep, OCtype* octypep,
unsigned int* nvaluesp, char*** stringsp)
{
OCstate* state;
OCnode* node;
OCattribute* attr;
unsigned int nattrs;
OCVERIFY(OCstate*,state,conn);
OCDEREF(OCstate*,state,conn);
OCVERIFY(OCnode*,node,node0);
OCDEREF(OCnode*,node,node0);
nattrs = oclistlength(node->attributes);
if(i >= nattrs) return OC_EINVAL;
attr = (OCattribute*)oclistget(node->attributes,i);
if(namep) *namep = strdup(attr->name);
if(octypep) *octypep = attr->etype;
if(nvaluesp) *nvaluesp = attr->nvalues;
if(stringsp) {
size_t space = attr->nvalues * sizeof(char*);
char** strings = (space > 0?ocmalloc(space):NULL);
for(i=0;i<attr->nvalues;i++)
strings[i] = nulldup(attr->values[i]);
*stringsp = strings;
}
return OC_NOERR;
}
/* Return all the OCobjects associated with a tree with specified root */
OCobject*
oc_inq_objects(OCconnection conn, OCobject root0)
{
unsigned int i;
OCstate* state;
OCnode* root;
OClist* nodes;
OCobject* objects = NULL;
unsigned int nobjects;
OCVERIFYX(OCstate*,state,conn,OCNULL);
OCDEREF(OCstate*,state,conn);
OCVERIFYX(OCnode*,root,root0,OCNULL);
OCDEREF(OCnode*,root,root0);
if(root == NULL) return NULL;
root = root->root;
if(root == NULL) return NULL;
nodes = root->tree->nodes;
nobjects = oclistlength(nodes);
if(nodes != NULL && nobjects > 0) {
size_t len = sizeof(OCobject)*(1+nobjects);
objects = (OCobject*)ocmalloc(len);
for(i=0;i<oclistlength(nodes);i++) {
objects[i] = (OCobject)oclistget(nodes,i);
}
objects[nobjects] = OCNULL; /* null terminate */
}
return objects;
}
static OCerror
createtempfile(OCstate* state, OCtree* tree)
{
int fd,slen;
char* name;
slen = strlen(TMPPATH1);
if(slen < strlen(TMPPATH2)) slen = strlen(TMPPATH2);
slen += strlen("datadds") + strlen("XXXXXX");
name = (char*)ocmalloc(slen+1);
MEMCHECK(name,OC_ENOMEM);
fd = createtempfile1(name, TMPPATH1);
if(fd < 0)
fd = createtempfile1(name, TMPPATH2);
if(fd < 0) {
oc_log(LOGERR,"oc_open: attempt to open tmp file %s failed",name);
return errno;
}
oc_log(LOGNOTE,"oc_open: using tmp file: %s",name);
tree->data.filename = name; /* remember our tmp file name */
tree->data.file = fdopen(fd,"w+");
if(tree->data.file == NULL) return OC_EOPEN;
/* unlink the temp file so it will automatically be reclaimed */
if(ocdebug == 0) unlink(tree->data.filename);
return OC_NOERR;
}
static OCerror
ocextractddsinmemory(OCstate* state, OCtree* tree, OCflags flags)
{
OCerror stat = OC_NOERR;
size_t ddslen, bod, bodfound;
/* Read until we find the separator (or EOF)*/
bodfound = findbod(state->packet,&bod,&ddslen);
if(!bodfound) {/* No BOD; pretend */
bod = tree->data.bod;
ddslen = tree->data.datasize;
}
tree->data.bod = bod;
tree->data.ddslen = ddslen;
/* copy out the dds */
if(ddslen > 0) {
tree->text = (char*)ocmalloc(ddslen+1);
memcpy((void*)tree->text,(void*)ocbytescontents(state->packet),ddslen);
tree->text[ddslen] = '\0';
} else
tree->text = NULL;
/* Extract the inmemory contents */
tree->data.memory = ocbytesextract(state->packet);
#ifdef IGNORE
/* guarantee the data part is on an 8 byte boundary */
if(tree->data.bod % 8 != 0) {
unsigned long count = tree->data.datasize - tree->data.bod;
memcpy(tree->xdrmemory,tree->xdrmemory+tree->data.bod,count);
tree->data.datasize = count;
tree->data.bod = 0;
tree->data.ddslen = 0;
}
#endif
if(tree->text == NULL) stat = OC_EDATADDS;
return OCTHROW(stat);
}
/* DRNO need to explicitly get and walk string values*/
int
oc_stringcontent(OCstate* state, OCcontent* content, char** stringp, size_t* slenp)
{
int stat = OC_NOERR;
XDR* xdrs;
unsigned int slen;
char* stringmemory;
if(state == NULL || content == NULL) return OCTHROW(OC_EINVAL);
if(content->node->octype != OC_Primitive) return OCTHROW(OC_EINVAL);
if(content->node->etype != OC_String
&& content->node->etype != OC_URL) return OCTHROW(OC_EINVAL);
xdrs = state->dap.xdrs;
if(xdrs == NULL) return OCTHROW(OC_EXDR);
if(oc_contentmode(state,content) != Datamode) return OCTHROW(OC_EINVAL);
/* We are at a single instance of a string data type*/
if(!xdr_setpos(xdrs,content->xdroffset)) return xdrerror();
if(!xdr_u_int(xdrs,&slen)) return xdrerror();
stringmemory = (char*)ocmalloc(slen+1);
MEMCHECK(stringmemory,OC_ENOMEM);
if(!xdr_opaque(xdrs,stringmemory,slen)) return xdrerror();
stringmemory[slen] = '\0';
/* restore location*/
if(!xdr_setpos(xdrs,content->xdroffset)) return xdrerror();
if(stringp != NULL) *stringp = stringmemory;
if(slenp != NULL) *slenp = slen;
return OCTHROW(stat);
}
/* Modify constraint to use %XX escapes */
static char*
constraintescape(const char* url)
{
size_t len;
char* p;
int c;
char* eurl;
if(url == NULL) return NULL;
len = strlen(url);
eurl = ocmalloc(1+3*len); /* worst case: c -> %xx */
MEMCHECK(eurl,NULL);
p = eurl;
*p = '\0';
while((c=*url++)) {
if(c >= '0' && c <= '9') {*p++ = c;}
else if(c >= 'a' && c <= 'z') {*p++ = c;}
else if(c >= 'A' && c <= 'Z') {*p++ = c;}
else if(strchr(okchars,c) != NULL) {*p++ = c;}
else {
*p++ = '%';
*p++ = hexdigits[(c & 0xf0)>>4];
*p++ = hexdigits[(c & 0xf)];
}
}
*p = '\0';
return eurl;
}
OCattribute*
makeattribute(char* name, OCtype ptype, OClist* values)
{
OCattribute* att = (OCattribute*)ocmalloc(sizeof(OCattribute)); /* ocmalloc zeros*/
MEMCHECK(att,(OCattribute*)NULL);
att->name = nulldup(name);
att->etype = ptype;
att->nvalues = oclistlength(values);
att->values = NULL;
if(att->nvalues > 0) {
int i;
att->values = (char**)ocmalloc(sizeof(char*)*att->nvalues);
for(i=0;i<att->nvalues;i++)
att->values[i] = nulldup((char*)oclistget(values,i));
}
return att;
}
static OCerror
ocextractdds(OCstate* state, OCtree* tree)
{
OCerror stat = OC_NOERR;
size_t ddslen, bod, bodfound;
#ifdef OC_DISK_STORAGE
/* Read until we find the separator (or EOF)*/
ocbytesclear(state->packet);
rewind(tree->data.file);
do {
char chunk[128];
size_t count;
/* read chunks of the file until we find the separator*/
count = fread(chunk,1,sizeof(chunk),tree->data.file);
if(count <= 0) break; /* EOF;*/
ocbytesappendn(state->packet,chunk,count);
bodfound = findbod(state->packet,&bod,&ddslen);
} while(!bodfound);
#else /*!OC_DISK_STORAGE*/
/* Read until we find the separator (or EOF)*/
bodfound = findbod(state->packet,&bod,&ddslen);
#endif
if(!bodfound) {/* No BOD; pretend */
bod = tree->data.bod;
ddslen = tree->data.datasize;
}
tree->data.bod = bod;
tree->data.ddslen = ddslen;
/* copy out the dds */
if(ddslen > 0) {
tree->text = (char*)ocmalloc(ddslen+1);
memcpy((void*)tree->text,(void*)ocbytescontents(state->packet),ddslen);
tree->text[ddslen] = '\0';
} else
tree->text = NULL;
#ifdef OC_DISK_STORAGE
/* reset the position of the tmp file*/
fseek(tree->data.file,tree->data.bod,SEEK_SET);
#else
/* If the data part is not on an 8 byte boundary, make it so */
if(tree->data.bod % 8 != 0) {
unsigned long count = tree->data.datasize - tree->data.bod;
char* dst = ocbytescontents(state->packet);
char* src = dst + tree->data.bod;
int i;
/* memcpy((void*)dst,(void*)src,count); overlap*/
for(i=0;i<count;i++) dst[i] = src[i]; /* avoid memcpy overlap */
tree->data.datasize = count;
tree->data.bod = 0;
tree->data.ddslen = 0;
}
#endif
if(tree->text == NULL) stat = OC_EDATADDS;
return THROW(stat);
}
/* Not all systems have strndup, so provide one*/
char*
ocstrndup(const char* s, size_t len)
{
char* dup;
if(s == NULL) return NULL;
dup = (char*)ocmalloc(len+1);
MEMCHECK(dup,NULL);
memcpy((void*)dup,s,len);
dup[len] = '\0';
return dup;
}
static char*
dent(int n)
{
if(sindent == NULL) {
sindent = (char*)ocmalloc(102);
MEMCHECK(sindent,NULL);
memset((void*)sindent,(int)' ',(size_t)101);
sindent[101] = '\0';
}
if(n > 100) n = 100;
return sindent+(100-n);
}
OCnode*
makeocnode(char* name, OCtype ptype, OCnode* root)
{
OCnode* cdf = (OCnode*)ocmalloc(sizeof(OCnode));
MEMCHECK(cdf,(OCnode*)NULL);
memset((void*)cdf,0,sizeof(OCnode));
cdf->magic = OCMAGIC;
cdf->name = (name?strdup(name):NULL);
cdf->octype = ptype;
cdf->array.dimensions = NULL;
cdf->root = root;
return cdf;
}
OCerror
ocopen(OCstate** statep, const char* url)
{
int stat = OC_NOERR;
OCstate * state = NULL;
OCURI* tmpurl = NULL;
CURL* curl = NULL; /* curl handle*/
if(!ocuriparse(url,&tmpurl)) {OCTHROWCHK(stat=OC_EBADURL); goto fail;}
stat = occurlopen(&curl);
if(stat != OC_NOERR) {OCTHROWCHK(stat); goto fail;}
state = (OCstate*)ocmalloc(sizeof(OCstate)); /* ocmalloc zeros memory*/
if(state == NULL) {OCTHROWCHK(stat=OC_ENOMEM); goto fail;}
/* Setup DAP state*/
state->header.magic = OCMAGIC;
state->header.occlass = OC_State;
state->curl = curl;
state->trees = oclistnew();
state->uri = tmpurl;
if(!ocuridecodeparams(state->uri)) {
oclog(OCLOGWARN,"Could not parse client parameters");
}
state->packet = ocbytesnew();
ocbytessetalloc(state->packet,DFALTPACKETSIZE); /*initial reasonable size*/
/* capture curl properties for this link from rc file1*/
stat = ocset_curlproperties(state);
if(stat != OC_NOERR) goto fail;
/* Set the one-time curl flags */
if((stat=ocset_flags_perlink(state))!= OC_NOERR) goto fail;
#if 1 /* temporarily make per-link */
if((stat=ocset_flags_perfetch(state))!= OC_NOERR) goto fail;
#endif
if(statep) *statep = state;
else {
if(state != NULL) ocfree(state);
}
return OCTHROW(stat);
fail:
ocurifree(tmpurl);
if(state != NULL) ocfree(state);
if(curl != NULL) occurlclose(curl);
return OCTHROW(stat);
}
static DAPparsestate*
dap_parse_init(char* buf)
{
DAPparsestate* state = (DAPparsestate*)ocmalloc(sizeof(DAPparsestate)); /*ocmalloc zeros*/
MEMCHECK(state,NULL);
if(buf==NULL) {
dap_parse_error(state,"dap_parse_init: no input buffer");
state->error = OC_EINVAL; /* semantic error */
dap_parse_cleanup(state);
return NULL;
}
daplexinit(buf,&state->lexstate);
return state;
}
OCcontent*
ocnewcontent(OCstate* state)
{
OCcontent* content;
if(state == NULL) return NULL;
content = state->contentlist;
/* Search for an unused content node*/
while(content != NULL && content->mode != Emptymode) {content = content->next;}
if(content == NULL) {
content = (OCcontent*)ocmalloc(sizeof(OCcontent));
MEMCHECK(content,(OCcontent*)NULL);
content->magic = OCMAGIC;
content->next = state->contentlist;
state->contentlist = content;
}
return ocresetcontent(state,content);
}
static OCmemdata*
makememdata(OCtype octype, OCtype etype, unsigned long count)
{
unsigned long memsize;
OCmemdata* memdata;
if(octype == OC_Primitive)
memsize = instancesize(etype)*count;
else
memsize = instancesize(octype)*count;
memdata = (OCmemdata*)ocmalloc(sizeof(OCmemdata) + memsize);
if(memdata == NULL) return NULL;
memdata->octype = (unsigned long)octype;
memdata->etype = (unsigned long)etype;
if(memdata->etype > 107) OCPANIC("help");
memdata->count = count;
return memdata;
}
OCerror
ocopen(OCstate** statep, const char* url)
{
int stat = OC_NOERR;
OCstate * state = NULL;
DAPURL tmpurl;
CURL* curl = NULL; /* curl handle*/
memset((void*)&tmpurl,0,sizeof(tmpurl));
if(!dapurlparse(url,&tmpurl)) {THROWCHK(stat=OC_EBADURL); goto fail;}
stat = occurlopen(&curl);
if(stat != OC_NOERR) {THROWCHK(stat); goto fail;}
state = (OCstate*)ocmalloc(sizeof(OCstate)); /* ocmalloc zeros memory*/
if(state == NULL) {THROWCHK(stat=OC_ENOMEM); goto fail;}
/* Setup DAP state*/
state->magic = OCMAGIC;
state->curl = curl;
state->trees = oclistnew();
state->contentlist = NULL;
state->url = tmpurl;
state->clientparams = ocparamdecode(state->url.params);
if(state->clientparams == NULL) {
oc_log(LOGWARN,"Could not parse client parameters");
}
state->packet = ocbytesnew();
ocbytessetalloc(state->packet,DFALTPACKETSIZE); /*initial reasonable size*/
/* set curl properties for this link */
ocsetcurlproperties(state);
if(statep) *statep = state;
return THROW(stat);
fail:
dapurlclear(&tmpurl);
if(state != NULL) ocfree(state);
if(curl != NULL) occurlclose(curl);
return THROW(stat);
}
static void
encodeurltext(char* text, OCbytes* buf)
{
/* Encode the URL to handle illegal characters */
len = strlen(url);
encoded = ocmalloc(len*4+1); /* should never be larger than this*/
if(encoded==NULL) return;
p = url; q = encoded;
while((c=*p++)) {
if(strchr(mustencode,c) != NULL) {
char tmp[8];
int hex1, hex2;
hex1 = (c & 0x0F);
hex2 = (c & 0xF0) >> 4;
tmp[0] = '0'; tmp[1] = 'x';
tmp[2] = hexchars[hex2]; tmp[3] = hexchars[hex1];
tmp[4] = '\0';
ocbytescat(buf,tmp);
} else *q++ = (char)c;
static OCerror
ocextractddsinfile(OCstate* state, OCtree* tree, OCflags flags)
{
OCerror stat = OC_NOERR;
size_t ddslen, bod, bodfound;
/* Read until we find the separator (or EOF)*/
ocbytesclear(state->packet);
rewind(tree->data.file);
bodfound = 0;
do {
char chunk[1024];
size_t count;
/* read chunks of the file until we find the separator*/
count = fread(chunk,1,sizeof(chunk),tree->data.file);
if(count <= 0) break; /* EOF;*/
ocbytesappendn(state->packet,chunk,count);
bodfound = ocfindbod(state->packet,&bod,&ddslen);
} while(!bodfound);
if(!bodfound) {/* No BOD; pretend */
bod = tree->data.bod;
ddslen = tree->data.datasize;
#ifdef OCDEBUG
fprintf(stderr,"missing bod: ddslen=%lu bod=%lu\n",
(unsigned long)ddslen,(unsigned long)bod);
#endif
}
tree->data.bod = bod;
tree->data.ddslen = ddslen;
/* copy out the dds */
if(ddslen > 0) {
tree->text = (char*)ocmalloc(ddslen+1);
memcpy((void*)tree->text,(void*)ocbytescontents(state->packet),ddslen);
tree->text[ddslen] = '\0';
} else
tree->text = NULL;
/* reset the position of the tmp file*/
if(fseek(tree->data.file,(long)tree->data.bod,SEEK_SET) < 0
|| tree->text == NULL)
stat = OC_EDATADDS;
return OCTHROW(stat);
}
OCerror
ocopen(OCstate** statep, const char* url)
{
int stat = OC_NOERR;
OCstate * state = NULL;
OCURI* tmpurl = NULL;
CURL* curl = NULL; /* curl handle*/
if(!ocuriparse(url,&tmpurl)) {OCTHROWCHK(stat=OC_EBADURL); goto fail;}
stat = occurlopen(&curl);
if(stat != OC_NOERR) {OCTHROWCHK(stat); goto fail;}
state = (OCstate*)ocmalloc(sizeof(OCstate)); /* ocmalloc zeros memory*/
if(state == NULL) {OCTHROWCHK(stat=OC_ENOMEM); goto fail;}
/* Setup DAP state*/
state->magic = OCMAGIC;
state->curl = curl;
state->trees = oclistnew();
state->uri = tmpurl;
if(!ocuridecodeparams(state->uri)) {
oc_log(LOGWARN,"Could not parse client parameters");
}
state->packet = ocbytesnew();
ocbytessetalloc(state->packet,DFALTPACKETSIZE); /*initial reasonable size*/
/* set curl properties for this link */
ocsetcurlproperties(state);
/* Set up list to support reuse/reclamation of OCcontent objects. */
state->contentlist = NULL;
if(statep) *statep = state;
return OCTHROW(stat);
fail:
ocurifree(tmpurl);
if(state != NULL) ocfree(state);
if(curl != NULL) occurlclose(curl);
return OCTHROW(stat);
}
void*
oclinearize(OCtype etype, unsigned int nstrings, char** strings)
{
int i;
size_t typesize;
char* memp;
char* memory;
if(nstrings == 0) return NULL;
typesize = octypesize(etype);
memory = (char*)ocmalloc(nstrings*typesize);
MEMCHECK(memory,NULL);
memp = memory;
for(i=0;i<nstrings;i++) {
char* value = strings[i];
converttype(etype,value,memp);
memp += typesize;
}
return memory;
}
void
dap_parse_error(DAPparsestate* state, const char *fmt, ...)
{
size_t len, suffixlen, prefixlen;
va_list argv;
char* tmp = NULL;
va_start(argv,fmt);
(void) vfprintf(stderr,fmt,argv) ;
(void) fputc('\n',stderr) ;
len = strlen(state->lexstate->input);
suffixlen = strlen(state->lexstate->next);
prefixlen = (len - suffixlen);
tmp = (char*)ocmalloc(len+1);
flatten(state->lexstate->input,tmp,prefixlen);
(void) fprintf(stderr,"context: %s",tmp);
flatten(state->lexstate->next,tmp,suffixlen);
(void) fprintf(stderr,"^%s\n",tmp);
(void) fflush(stderr); /* to ensure log files are current */
ocfree(tmp);
va_end(argv);
}
/* Convert path to a string; leave off the dataset name*/
static char*
pathtostring(OClist* path, char* separator, int usecdfname)
{
int slen,i,len;
char* pathname;
if(path == NULL || (len = oclistlength(path))==0) return NULL;
for(slen=0,i=0;i<len;i++) {
OCnode* node = (OCnode*)oclistget(path,i);
if(node->container == NULL || node->name == NULL) continue;
slen += strlen(node->name);
}
slen += ((len-1)*strlen(separator));
slen += 1; /* for null terminator*/
pathname = (char*)ocmalloc(slen);
MEMCHECK(pathname,NULL);
pathname[0] = '\0';
for(i=0;i<len;i++) {
OCnode* node = (OCnode*)oclistget(path,i);
if(node->container == NULL || node->name == NULL) continue;
if(strlen(pathname) > 0) strcat(pathname,separator);
strcat(pathname,node->name);
}
return pathname;
}
/*
Extract data from the xdr packet into a chunk of memory.
Normally, it is assumed that we are (at least virtually)
"at" a single instance in the xdr packet; which we read.
Virtually because for packed data, we need to point to
the beginning of the packed data and use the index to indicate
which packed element to get.
*/
int
ocxdrread(XDR* xdrs, char* memory, size_t memsize, int packed, OCtype octype, unsigned int start, size_t count)
{
int stat = OC_NOERR;
unsigned int i;
size_t elemsize = octypesize(octype);
char* localmem = NULL;
char* startmem = NULL;
size_t totalsize;
size_t xdrsize;
unsigned int xdrckp = xdr_getpos(xdrs);
/* validate memory space*/
totalsize = elemsize*count;
if(memsize < totalsize) return THROW(OC_EINVAL);
/* Handle packed data specially*/
/* WARNING: assumes that the initial count has been read*/
if(packed) {
char tmp[LOCALMEMMAX];
unsigned int readsize = start+count;
if(readsize <= LOCALMEMMAX) /* avoid malloc/free for common case*/
localmem = tmp;
else {
localmem = (char*)ocmalloc(readsize);
MEMCHECK(localmem,OC_ENOMEM);
}
if(!xdr_opaque(xdrs,(char*)localmem,readsize)) return xdrerror();
memcpy((void*)memory,(void*)(localmem+start),count);
if(readsize > LOCALMEMMAX) ocfree(localmem);
if(!xdr_setpos(xdrs,xdrckp)) return xdrerror(); /* revert to beginning*/
return THROW(OC_NOERR);
}
/* Not packed: extract count items; use xdr_opaque to speed up*/
if(octype == OC_String || octype == OC_URL) {
/* do nothing here; handle below*/
} else if(octype == OC_Float64
|| octype == OC_UInt64
|| octype == OC_Int64) {
unsigned int* p;
xdrsize = 2*(start+count)*BYTES_PER_XDR_UNIT;
localmem = (char*)ocmalloc(xdrsize);
startmem = localmem+(2*start*BYTES_PER_XDR_UNIT);
MEMCHECK(localmem,OC_ENOMEM);
if(!xdr_opaque(xdrs,(char*)localmem,xdrsize)) return xdrerror();
if(!oc_network_order) {
for(p=(unsigned int*)startmem,i=0;i<2*count;i++,p++) {
unsigned int swap = *p;
swapinline(*p,swap);
}
}
} else {
unsigned int* p;
xdrsize = (start+count)*BYTES_PER_XDR_UNIT;
localmem = (char*)ocmalloc(xdrsize);
MEMCHECK(localmem,OC_ENOMEM);
startmem = localmem+(start*BYTES_PER_XDR_UNIT);
if(!xdr_opaque(xdrs,(char*)localmem,xdrsize)) return xdrerror();
if(!oc_network_order) {
for(p=(unsigned int*)startmem,i=0;i<count;i++,p++) {
unsigned int swap = *p;
swapinline(*p,swap);
}
}
}
switch (octype) {
case OC_Char: case OC_Byte: case OC_UByte: {
char* pmem = (char*)memory;
unsigned int* p = (unsigned int*)startmem;
for(i=0;i<count;i++) {*pmem++ = (char)(*p++);}
} break;
case OC_Int16: case OC_UInt16: {
unsigned short* pmem = (unsigned short*)memory;
unsigned int* p = (unsigned int*)startmem;
for(i=0;i<count;i++) {*pmem++ = (unsigned short)(*p++);}
} break;
case OC_Int32: case OC_UInt32: {
memcpy((void*)memory,(void*)startmem,count*sizeof(unsigned int));
} break;
case OC_Float32: {
memcpy((void*)memory,(void*)startmem,count*sizeof(float));
} break;
case OC_Int64: case OC_UInt64: case OC_Float64: {
unsigned int* p;
unsigned int* pmem = (unsigned int*)memory;
/* Sometimes need to invert order*/
for(p=(unsigned int*)startmem,i=0;i<count;i++) {
if(oc_invert_xdr_double) {
pmem[1] = (unsigned int)(*p++);
pmem[0] = (unsigned int)(*p++);
} else {
pmem[0] = (unsigned int)(*p++);
pmem[1] = (unsigned int)(*p++);
}
pmem += 2;
}
} break;
case OC_String: case OC_URL: {
char* s = NULL;
char** pmem = (char**)memory;
/* First skip to the starting string */
for(i=0;i<start;i++) {
s = NULL; /* make xdr_string alloc the space */
if(!xdr_string(xdrs,&s,OC_INT32_MAX)) return xdrerror();
ocfree(s);
}
/* Read count strings */
for(i=0;i<count;i++) {
s = NULL; /* make xdr_string alloc the space */
if(!xdr_string(xdrs,&s,OC_INT32_MAX)) return xdrerror();
pmem[i] = s;
}
} break;
default: return THROW(OC_EINVAL);
}
ocfree(localmem);
if(!xdr_setpos(xdrs,xdrckp)) return xdrerror(); /* revert to beginning*/
return THROW(stat);
}
OCerror
ocfetchf(OCstate* state, const char* constraint, OCdxd kind, OCflags flags,
OCnode** rootp)
{
OCtree* tree = NULL;
OCnode* root = NULL;
OCerror stat = OC_NOERR;
tree = (OCtree*)ocmalloc(sizeof(OCtree));
MEMCHECK(tree,OC_ENOMEM);
memset((void*)tree,0,sizeof(OCtree));
tree->dxdclass = kind;
tree->state = state;
tree->constraint = constraintescape(constraint);
if(tree->constraint == NULL)
tree->constraint = nulldup(constraint);
/* Set curl properties: pwd, flags, proxies, ssl */
if((stat=ocset_user_password(state))!= OC_NOERR) goto fail;
if((stat=ocset_curl_flags(state)) != OC_NOERR) goto fail;
if((stat=ocset_proxy(state)) != OC_NOERR) goto fail;
if((stat=ocset_ssl(state)) != OC_NOERR) goto fail;
ocbytesclear(state->packet);
switch (kind) {
case OCDAS:
stat = readDAS(state,tree);
if(stat == OC_NOERR) {
tree->text = ocbytesdup(state->packet);
if(tree->text == NULL) stat = OC_EDAS;
}
break;
case OCDDS:
stat = readDDS(state,tree);
if(stat == OC_NOERR) {
tree->text = ocbytesdup(state->packet);
if(tree->text == NULL) stat = OC_EDDS;
}
break;
case OCDATADDS:
if((flags & OCINMEMORY) == 0) {/* store in file */
/* Create the datadds file immediately
so that DRNO can reference it*/
/* Make the tmp file*/
stat = createtempfile(state,tree);
if(stat) {OCTHROWCHK(stat); goto unwind;}
stat = readDATADDS(state,tree,flags);
if(stat == OC_NOERR) {
/* Separate the DDS from data and return the dds;
will modify packet */
stat = ocextractddsinfile(state,tree,flags);
}
} else { /*inmemory*/
stat = readDATADDS(state,tree,flags);
if(stat == OC_NOERR) {
/* Separate the DDS from data and return the dds;
will modify packet */
stat = ocextractddsinmemory(state,tree,flags);
}
}
break;
}/*switch*/
if(stat != OC_NOERR) {
/* Obtain any http code */
state->error.httpcode = ocfetchhttpcode(state->curl);
if(state->error.httpcode >= 400) {
oc_log(LOGWARN,"oc_open: Could not read url; http error = %l",state->error.httpcode);
} else {
oc_log(LOGWARN,"oc_open: Could not read url");
}
return OCTHROW(stat);
}
tree->nodes = NULL;
stat = DAPparse(state,tree,tree->text);
/* Check and report on an error return from the server */
if(stat == OC_EDAPSVC && state->error.code != NULL) {
oc_log(LOGERR,"oc_open: server error retrieving url: code=%s message=\"%s\"",
state->error.code,
(state->error.message?state->error.message:""));
}
if(stat) {OCTHROWCHK(stat); goto unwind;}
root = tree->root;
/* make sure */
tree->root = root;
root->tree = tree;
/* Verify the parse */
switch (kind) {
case OCDAS:
if(root->octype != OC_Attributeset)
{OCTHROWCHK(stat=OC_EDAS); goto unwind;}
break;
case OCDDS:
if(root->octype != OC_Dataset)
{OCTHROWCHK(stat=OC_EDDS); goto unwind;}
break;
case OCDATADDS:
if(root->octype != OC_Dataset)
{OCTHROWCHK(stat=OC_EDATADDS); goto unwind;}
/* Modify the tree kind */
tree->dxdclass = OCDATADDS;
break;
default: return OC_EINVAL;
}
if(kind != OCDAS) {
/* Process ocnodes to assign offsets and sizes where possible */
occomputeskipdata(state,root);
/* Process ocnodes to mark those that are cacheable */
ocmarkcacheable(state,root);
/* Process ocnodes to handle various semantic issues*/
occomputesemantics(tree->nodes);
}
/* Process ocnodes to compute name info*/
occomputefullnames(tree->root);
if(kind == OCDATADDS) {
if((flags & OCINMEMORY) == 0) {
tree->data.xdrs = xxdr_filecreate(tree->data.file,tree->data.bod);
} else {
/* Switch to zero based memory */
tree->data.xdrs
= xxdr_memcreate(tree->data.memory,tree->data.datasize,tree->data.bod);
}
MEMCHECK(tree->data.xdrs,OC_ENOMEM);
}
/* Put root into the state->trees list */
oclistpush(state->trees,(ocelem)root);
if(rootp) *rootp = root;
return stat;
unwind:
ocfreetree(tree);
fail:
return OCTHROW(stat);
}
OCerror
ocfetch(OCstate* state, const char* constraint, OCdxd kind, OCflags flags,
OCnode** rootp)
{
OCtree* tree = NULL;
OCnode* root = NULL;
OCerror stat = OC_NOERR;
tree = (OCtree*)ocmalloc(sizeof(OCtree));
MEMCHECK(tree,OC_ENOMEM);
memset((void*)tree,0,sizeof(OCtree));
tree->dxdclass = kind;
tree->state = state;
tree->constraint = constraintescape(constraint);
if(tree->constraint == NULL)
tree->constraint = nulldup(constraint);
/* Set per-fetch curl properties */
#if 0 /* temporarily make per-link */
if((stat=ocset_flags_perfetch(state))!= OC_NOERR) goto fail;
#endif
ocbytesclear(state->packet);
switch (kind) {
case OCDAS:
stat = readDAS(state,tree);
if(stat == OC_NOERR) {
tree->text = ocbytesdup(state->packet);
if(tree->text == NULL) stat = OC_EDAS;
}
break;
case OCDDS:
stat = readDDS(state,tree);
if(stat == OC_NOERR) {
tree->text = ocbytesdup(state->packet);
if(tree->text == NULL) stat = OC_EDDS;
}
break;
case OCDATADDS:
if((flags & OCONDISK) != 0) {/* store in file */
/* Create the datadds file immediately
so that DRNO can reference it*/
/* Make the tmp file*/
stat = createtempfile(state,tree);
if(stat) {OCTHROWCHK(stat); goto fail;}
stat = readDATADDS(state,tree,flags);
if(stat == OC_NOERR) {
/* Separate the DDS from data and return the dds;
will modify packet */
stat = ocextractddsinfile(state,tree,flags);
}
} else { /*inmemory*/
stat = readDATADDS(state,tree,flags);
if(stat == OC_NOERR) {
/* Separate the DDS from data and return the dds;
will modify packet */
stat = ocextractddsinmemory(state,tree,flags);
}
}
break;
default:
break;
}/*switch*/
/* Obtain any http code */
state->error.httpcode = ocfetchhttpcode(state->curl);
if(stat != OC_NOERR) {
if(state->error.httpcode >= 400) {
oclog(OCLOGWARN,"oc_open: Could not read url; http error = %l",state->error.httpcode);
} else {
oclog(OCLOGWARN,"oc_open: Could not read url");
}
goto fail;
}
tree->nodes = NULL;
stat = DAPparse(state,tree,tree->text);
/* Check and report on an error return from the server */
if(stat == OC_EDAPSVC && state->error.code != NULL) {
oclog(OCLOGERR,"oc_open: server error retrieving url: code=%s message=\"%s\"",
state->error.code,
(state->error.message?state->error.message:""));
}
if(stat) {OCTHROWCHK(stat); goto fail;}
root = tree->root;
/* make sure */
tree->root = root;
root->tree = tree;
/* Verify the parse */
switch (kind) {
case OCDAS:
if(root->octype != OC_Attributeset)
{OCTHROWCHK(stat=OC_EDAS); goto fail;}
break;
case OCDDS:
if(root->octype != OC_Dataset)
{OCTHROWCHK(stat=OC_EDDS); goto fail;}
break;
case OCDATADDS:
if(root->octype != OC_Dataset)
{OCTHROWCHK(stat=OC_EDATADDS); goto fail;}
/* Modify the tree kind */
tree->dxdclass = OCDATADDS;
break;
default: return OC_EINVAL;
}
if(kind != OCDAS) {
/* Process ocnodes to mark those that are cacheable */
ocmarkcacheable(state,root);
/* Process ocnodes to handle various semantic issues*/
occomputesemantics(tree->nodes);
}
/* Process ocnodes to compute name info*/
occomputefullnames(tree->root);
if(kind == OCDATADDS) {
if((flags & OCONDISK) != 0) {
tree->data.xdrs = xxdr_filecreate(tree->data.file,tree->data.bod);
} else {
#ifdef OCDEBUG
fprintf(stderr,"ocfetch.datadds.memory: datasize=%lu bod=%lu\n",
(unsigned long)tree->data.datasize,(unsigned long)tree->data.bod);
#endif
/* Switch to zero based memory */
tree->data.xdrs
= xxdr_memcreate(tree->data.memory,tree->data.datasize,tree->data.bod);
}
MEMCHECK(tree->data.xdrs,OC_ENOMEM);
/* Do a quick check to see if server returned an ERROR {}
at the beginning of the data
*/
if(dataError(tree->data.xdrs,state)) {
stat = OC_EDATADDS;
oclog(OCLOGERR,"oc_open: server error retrieving url: code=%s message=\"%s\"",
state->error.code,
(state->error.message?state->error.message:""));
goto fail;
}
/* Compile the data into a more accessible format */
stat = occompile(state,tree->root);
if(stat != OC_NOERR)
goto fail;
}
/* Put root into the state->trees list */
oclistpush(state->trees,(void*)root);
if(rootp) *rootp = root;
return stat;
fail:
if(root != NULL)
ocroot_free(root);
else if(tree != NULL)
octree_free(tree);
return OCTHROW(stat);
}
OCerror
ocfetch(OCstate* state, const char* constraint, OCdxd kind, OCnode** rootp)
{
OCtree* tree = NULL;
OCnode* root = NULL;
OCerror stat = OC_NOERR;
tree = (OCtree*)ocmalloc(sizeof(OCtree));
MEMCHECK(tree,OC_ENOMEM);
memset((void*)tree,0,sizeof(OCtree));
tree->dxdclass = kind;
tree->state = state;
tree->constraint = constraintescape(constraint);
if(tree->constraint == NULL)
tree->constraint = nulldup(constraint);
ocbytesclear(state->packet);
switch (kind) {
case OCDAS:
stat = readDAS(state,tree);
if(stat == OC_NOERR) {
tree->text = ocbytesdup(state->packet);
if(tree->text == NULL) stat = OC_EDAS;
}
break;
case OCDDS:
stat = readDDS(state,tree);
if(stat == OC_NOERR) {
tree->text = ocbytesdup(state->packet);
if(tree->text == NULL) stat = OC_EDDS;
}
break;
case OCDATADDS:
#ifdef OC_DISK_STORAGE
/* Create the datadds file immediately
so that DRNO can reference it*/
/* Make the tmp file*/
stat = createtempfile(state,tree);
if(stat) {THROWCHK(stat); goto unwind;}
stat = readDATADDS(state,tree);
if(stat == OC_NOERR) {
/* Separate the DDS from data and return the dds;
will modify packet */
stat = ocextractdds(state,tree);
}
#else
stat = readDATADDS(state,tree);
if(stat == OC_NOERR) {
/* Separate the DDS from data*/
stat = ocextractdds(state,tree);
tree->data.xdrdata = ocbytesdup(state->packet);
}
#endif
break;
}
if(stat != OC_NOERR) {
/* Obtain any http code */
state->error.httpcode = ocfetchhttpcode(state->curl);
if(state->error.httpcode >= 400) {
oc_log(LOGWARN,"oc_open: Could not read url; http error = %l",state->error.httpcode);
} else {
oc_log(LOGWARN,"oc_open: Could not read url");
}
return THROW(stat);
}
tree->nodes = NULL;
stat = DAPparse(state,tree,tree->text);
/* Check and report on an error return from the server */
if(stat == OC_EDAPSVC && state->error.code != NULL) {
oc_log(LOGERR,"oc_open: server error retrieving url: code=%s message=\"%s\"",
state->error.code,
(state->error.message?state->error.message:""));
}
if(stat) {THROWCHK(stat); goto unwind;}
root = tree->root;
/* make sure */
tree->root = root;
root->tree = tree;
/* Verify the parse */
switch (kind) {
case OCDAS:
if(root->octype != OC_Attributeset)
{THROWCHK(stat=OC_EDAS); goto unwind;}
break;
case OCDDS:
if(root->octype != OC_Dataset)
{THROWCHK(stat=OC_EDDS); goto unwind;}
break;
case OCDATADDS:
if(root->octype != OC_Dataset)
{THROWCHK(stat=OC_EDATADDS); goto unwind;}
/* Modify the tree kind */
tree->dxdclass = OCDATADDS;
break;
default: return OC_EINVAL;
}
if(kind != OCDAS) {
/* Process ocnodes to fix various semantic issues*/
computeocsemantics(tree->nodes);
}
/* Process ocnodes to compute name info*/
computeocfullnames(tree->root);
if(kind != OCDAS) {
/* Process ocnodes to compute sizes when uniform in size*/
ocsetsize(tree->root);
}
if(kind == OCDATADDS) {
tree->data.xdrs = (XDR*)ocmalloc(sizeof(XDR));
MEMCHECK(tree->data.xdrs,OC_ENOMEM);
#ifdef OC_DISK_STORAGE
ocxdrstdio_create(tree->data.xdrs,tree->data.file,XDR_DECODE);
#else
xdrmem_create(tree->data.xdrs,tree->data.xdrdata,tree->data.datasize,XDR_DECODE);
#endif
if(!xdr_setpos(tree->data.xdrs,tree->data.bod)) return xdrerror();
}
#ifdef OC_DISK_STORAGE
if(ocdebug == 0 && tree->data.filename != NULL) {
unlink(tree->data.filename);
}
#endif
/* Put root into the state->trees list */
oclistpush(state->trees,(ocelem)root);
if(rootp) *rootp = root;
return stat;
unwind:
ocfreetree(tree);
return THROW(stat);
}
static int
occompileprim(OCstate* state, OCnode* xnode, OCmemdata** memdatap, XDR* xdrs)
{
unsigned int xdrcount,i;
size_t nelements = 0;
OCerror ocstat = OC_NOERR;
OCmemdata* memdata = NULL;
OCASSERT((xnode->octype == OC_Primitive));
/* Use the count from the datadds */
nelements = totaldimsize(xnode);
if(xnode->array.rank > 0) {
/* Get first copy of the dimension count */
if(!xdr_u_int(xdrs,&xdrcount)) {ocstat = OC_EXDR; goto fail;}
if(xdrcount != nelements) {ocstat=OC_EINVALCOORDS; goto fail;}
if(xnode->etype != OC_String && xnode->etype != OC_URL) {
/* Get second copy of the dimension count */
if(!xdr_u_int(xdrs,&xdrcount)) {ocstat = OC_EXDR; goto fail;}
if(xdrcount != nelements) {ocstat=OC_EINVALCOORDS; goto fail;}
}
} else {
nelements = 1;
xdrcount = 1;
}
memdata = makememdata(xnode->octype,xnode->etype,nelements);
MEMCHECK(memdata,OC_ENOMEM);
memdata->mode = (xnode->array.rank > 0?Dimmode:Datamode);
switch (xnode->etype) {
case OC_String: case OC_URL: {/* Get the array of strings and store pointers in buf */
char** dst = (char**)memdata->data.data;
for(i=0;i<xdrcount;i++) {
char* s = NULL;
if(!xdr_string(xdrs,(void*)&s,OC_INT32_MAX)) {ocstat = OC_EXDR; goto fail;}
dst[i] = s;
}
} break;
case OC_Byte:
case OC_UByte:
case OC_Char: {
if(xnode->array.rank == 0) { /* Single unpacked character/byte */
union {unsigned int i; char c[BYTES_PER_XDR_UNIT];} u;
if(!xdr_opaque(xdrs,u.c,BYTES_PER_XDR_UNIT)) {ocstat = OC_EXDR; goto fail;}
u.i = ocntoh(u.i);
memdata->data.data[0] = (char)u.i;
} else { /* Packed characters; count will have already been read */
char* dst = memdata->data.data;
if(!xdr_opaque(xdrs,dst,xdrcount)) {ocstat = OC_EXDR; goto fail;}
}
} break;
case OC_Int16: case OC_UInt16: {
unsigned short* dst = (unsigned short*)memdata->data.data;
unsigned int* src;
size_t xdrsize = xdrcount*BYTES_PER_XDR_UNIT;
src = (unsigned int*)ocmalloc(xdrsize);
if(!xdr_opaque(xdrs,(char*)src,xdrsize)) {ocfree(src); ocstat = OC_EXDR; goto fail;}
if(!oc_network_order) {
for(i=0;i<xdrcount;i++) { /* Write in place */
unsigned int hostint = src[i];
swapinline(dst[i],hostint);
}
}
ocfree(src);
} break;
case OC_Int32: case OC_UInt32:
case OC_Float32: {
unsigned int* dst = (unsigned int*)memdata->data.data;
size_t xdrsize = xdrcount*BYTES_PER_XDR_UNIT;
if(!xdr_opaque(xdrs,(char*)dst,xdrsize)) {ocstat = OC_EXDR; goto fail;}
if(!oc_network_order) {
for(i=0;i<xdrcount;i++) {
unsigned int hostint = dst[i];
swapinline(dst[i],hostint);
}
}
} break;
case OC_Int64: case OC_UInt64:
case OC_Float64: {
unsigned int* dst = (unsigned int*)memdata->data.data;
size_t xdrsize = 2*xdrcount*BYTES_PER_XDR_UNIT;
if(!xdr_opaque(xdrs,(char*)dst,xdrsize)) {ocstat = OC_EXDR; goto fail;}
if(!oc_network_order) {
for(i=0;i<2*xdrcount;i++) {
unsigned int hostint = dst[i];
swapinline(dst[i],hostint);
}
}
if(oc_invert_xdr_double) { /* May need to invert each pair */
for(i=0;i<2*xdrcount;i+=2) {
unsigned int tmp = dst[i];
dst[i] = dst[i+1];
dst[i+1] = tmp;
}
}
} break;
default: OCPANIC1("unexpected etype: %d",xnode->etype);
} /* switch */
/*ok:*/
if(memdatap) *memdatap = memdata;
return THROW(ocstat);
fail:
freeocmemdata(memdata);
return THROW(ocstat);
}
