int getpart(char **outbuf, size_t *outlen,
const char *main, const char *sub, FILE *stream)
{
# define MAX_TAG_LEN 79
char couter[MAX_TAG_LEN+1]; /* current outermost section */
char cmain[MAX_TAG_LEN+1]; /* current main section */
char csub[MAX_TAG_LEN+1]; /* current sub section */
char ptag[MAX_TAG_LEN+1]; /* potential tag */
char patt[MAX_TAG_LEN+1]; /* potential attributes */
char *buffer = NULL;
char *ptr;
char *end;
union {
ssize_t sig;
size_t uns;
} len;
size_t bufsize = 0;
size_t outalloc = 256;
int in_wanted_part = 0;
int base64 = 0;
int error;
enum {
STATE_OUTSIDE = 0,
STATE_OUTER = 1,
STATE_INMAIN = 2,
STATE_INSUB = 3,
STATE_ILLEGAL = 4
} state = STATE_OUTSIDE;
*outlen = 0;
*outbuf = malloc(outalloc);
if(!*outbuf)
return GPE_OUT_OF_MEMORY;
*(*outbuf) = '\0';
couter[0] = cmain[0] = csub[0] = ptag[0] = patt[0] = '\0';
while((error = readline(&buffer, &bufsize, stream)) == GPE_OK) {
ptr = buffer;
EAT_SPACE(ptr);
if('<' != *ptr) {
if(in_wanted_part) {
show(("=> %s", buffer));
error = appenddata(outbuf, outlen, &outalloc, buffer, base64);
if(error)
break;
}
continue;
}
ptr++;
if('/' == *ptr) {
/*
** closing section tag
*/
ptr++;
end = ptr;
EAT_WORD(end);
if((len.sig = end - ptr) > MAX_TAG_LEN) {
error = GPE_NO_BUFFER_SPACE;
break;
}
memcpy(ptag, ptr, len.uns);
ptag[len.uns] = '\0';
if((STATE_INSUB == state) && !strcmp(csub, ptag)) {
/* end of current sub section */
state = STATE_INMAIN;
csub[0] = '\0';
if(in_wanted_part) {
/* end of wanted part */
in_wanted_part = 0;
break;
}
}
else if((STATE_INMAIN == state) && !strcmp(cmain, ptag)) {
/* end of current main section */
state = STATE_OUTER;
cmain[0] = '\0';
if(in_wanted_part) {
/* end of wanted part */
in_wanted_part = 0;
break;
}
}
else if((STATE_OUTER == state) && !strcmp(couter, ptag)) {
/* end of outermost file section */
state = STATE_OUTSIDE;
couter[0] = '\0';
if(in_wanted_part) {
/* end of wanted part */
in_wanted_part = 0;
break;
}
}
}
else if(!in_wanted_part) {
/*
** opening section tag
*/
/* get potential tag */
end = ptr;
EAT_WORD(end);
if((len.sig = end - ptr) > MAX_TAG_LEN) {
error = GPE_NO_BUFFER_SPACE;
break;
}
memcpy(ptag, ptr, len.uns);
ptag[len.uns] = '\0';
/* ignore comments, doctypes and xml declarations */
if(('!' == ptag[0]) || ('?' == ptag[0])) {
show(("* ignoring (%s)", buffer));
continue;
}
/* get all potential attributes */
ptr = end;
EAT_SPACE(ptr);
end = ptr;
while(*end && ('>' != *end))
end++;
if((len.sig = end - ptr) > MAX_TAG_LEN) {
error = GPE_NO_BUFFER_SPACE;
break;
}
memcpy(patt, ptr, len.uns);
patt[len.uns] = '\0';
if(STATE_OUTSIDE == state) {
/* outermost element (<testcase>) */
strcpy(couter, ptag);
state = STATE_OUTER;
continue;
}
else if(STATE_OUTER == state) {
/* start of a main section */
strcpy(cmain, ptag);
state = STATE_INMAIN;
continue;
}
else if(STATE_INMAIN == state) {
/* start of a sub section */
strcpy(csub, ptag);
state = STATE_INSUB;
if(!strcmp(cmain, main) && !strcmp(csub, sub)) {
/* start of wanted part */
in_wanted_part = 1;
if(strstr(patt, "base64="))
/* bit rough test, but "mostly" functional, */
/* treat wanted part data as base64 encoded */
base64 = 1;
}
continue;
}
}
if(in_wanted_part) {
show(("=> %s", buffer));
error = appenddata(outbuf, outlen, &outalloc, buffer, base64);
if(error)
break;
}
} /* while */
if(buffer)
free(buffer);
if(error != GPE_OK) {
if(error == GPE_END_OF_FILE)
error = GPE_OK;
else {
if(*outbuf)
free(*outbuf);
*outbuf = NULL;
*outlen = 0;
}
}
return error;
}
const char *spitout(FILE *stream,
const char *main,
const char *sub, size_t *size)
{
char buffer[8192]; /* big enough for anything */
char cmain[128]=""; /* current main section */
char csub[128]=""; /* current sub section */
char *ptr;
char *end;
char display = 0;
char *string;
size_t stringlen=0;
size_t stralloc=256;
char base64 = 0; /* set to 1 if true */
enum {
STATE_OUTSIDE,
STATE_OUTER,
STATE_INMAIN,
STATE_INSUB,
STATE_ILLEGAL
} state = STATE_OUTSIDE;
string = malloc(stralloc);
if(!string)
return NULL;
string[0] = 0; /* zero first byte in case of no data */
while(fgets(buffer, sizeof(buffer), stream)) {
ptr = buffer;
/* pass white spaces */
EAT_SPACE(ptr);
if('<' != *ptr) {
if(display) {
show(("=> %s", buffer));
string = appendstring(string, buffer, &stringlen, &stralloc, base64);
show(("* %s\n", buffer));
}
continue;
}
ptr++;
EAT_SPACE(ptr);
if('/' == *ptr) {
/* end of a section */
ptr++;
EAT_SPACE(ptr);
end = ptr;
EAT_WORD(end);
*end = 0;
if((state == STATE_INSUB) &&
!strcmp(csub, ptr)) {
/* this is the end of the currently read sub section */
state--;
csub[0]=0; /* no sub anymore */
display=0;
}
else if((state == STATE_INMAIN) &&
!strcmp(cmain, ptr)) {
/* this is the end of the currently read main section */
state--;
cmain[0]=0; /* no main anymore */
display=0;
}
else if(state == STATE_OUTER) {
/* this is the end of the outermost file section */
state--;
}
}
else if(!display) {
/* this is the beginning of a section */
end = ptr;
EAT_WORD(end);
*end = 0;
switch(state) {
case STATE_OUTSIDE:
/* Skip over the outermost element (<testcase>), but if it turns out
to be a comment, completely ignore it below */
strcpy(cmain, ptr);
state = STATE_OUTER;
break;
case STATE_OUTER:
strcpy(cmain, ptr);
state = STATE_INMAIN;
break;
case STATE_INMAIN:
strcpy(csub, ptr);
state = STATE_INSUB;
break;
default:
break;
}
if(!end[1] != '>') {
/* There might be attributes here. Check for those we know of and care
about. */
if(strstr(&end[1], "base64=")) {
/* rough and dirty, but "mostly" functional */
/* Treat all data as base64 encoded */
base64 = 1;
}
}
}
if(display) {
string = appendstring(string, buffer, &stringlen, &stralloc, base64);
show(("* %s\n", buffer));
}
if((STATE_INSUB == state) &&
!strcmp(cmain, main) &&
!strcmp(csub, sub)) {
show(("* (%d bytes) %s\n", stringlen, buffer));
display = 1; /* start displaying */
}
else if ((*cmain == '?') || (*cmain == '!') || (*csub == '!')) {
/* Ignore comments, DOCTYPEs and XML declarations */
show(("%d ignoring (%s/%s)\n", state, cmain, csub));
state--;
}
else {
show(("%d (%s/%s): %s\n", state, cmain, csub, buffer));
display = 0; /* no display */
}
}
*size = stringlen;
return string;
}