virtual log4cxx_status_t decode(ByteBuffer& in,
LogString& out) {
enum { BUFSIZE = 256 };
logchar buf[BUFSIZE];
const apr_size_t initial_outbytes_left = BUFSIZE * sizeof(logchar);
apr_status_t stat = APR_SUCCESS;
if (in.remaining() == 0) {
size_t outbytes_left = initial_outbytes_left;
{
synchronized sync(mutex);
stat = apr_xlate_conv_buffer((apr_xlate_t*) convset,
NULL, NULL, (char*) buf, &outbytes_left);
}
out.append(buf, (initial_outbytes_left - outbytes_left)/sizeof(logchar));
} else {
while(in.remaining() > 0 && stat == APR_SUCCESS) {
size_t inbytes_left = in.remaining();
size_t initial_inbytes_left = inbytes_left;
size_t pos = in.position();
apr_size_t outbytes_left = initial_outbytes_left;
{
synchronized sync(mutex);
stat = apr_xlate_conv_buffer((apr_xlate_t*) convset,
in.data() + pos,
&inbytes_left,
(char*) buf,
&outbytes_left);
}
out.append(buf, (initial_outbytes_left - outbytes_left)/sizeof(logchar));
in.position(pos + (initial_inbytes_left - inbytes_left));
}
}
return stat;
}
static bool xlate_string(apr_xlate_t *xlate, const char *input, char *output) {
apr_size_t input_left = strlen(input);
apr_size_t output_left = XLATE_BUFFER_SIZE;
if (apr_xlate_conv_buffer(xlate, input, &input_left, output, &output_left) != APR_SUCCESS
|| input_left != 0
|| apr_xlate_conv_buffer(xlate, NULL, NULL, output, &output_left) != APR_SUCCESS
|| output_left < 1) {
return false;
}
return true;
}
static apr_status_t apr_xml_parser_convert_elem(apr_xml_elem *e,
apr_xlate_t *convset)
{
apr_xml_attr *a;
apr_xml_elem *ec;
apr_text *t;
apr_size_t inbytes_left, outbytes_left;
apr_status_t status;
inbytes_left = outbytes_left = strlen(e->name);
status = apr_xlate_conv_buffer(convset, e->name, &inbytes_left, (char *) e->name, &outbytes_left);
if (status) {
return status;
}
for (t = e->first_cdata.first; t != NULL; t = t->next) {
inbytes_left = outbytes_left = strlen(t->text);
status = apr_xlate_conv_buffer(convset, t->text, &inbytes_left, (char *) t->text, &outbytes_left);
if (status) {
return status;
}
}
for (t = e->following_cdata.first; t != NULL; t = t->next) {
inbytes_left = outbytes_left = strlen(t->text);
status = apr_xlate_conv_buffer(convset, t->text, &inbytes_left, (char *) t->text, &outbytes_left);
if (status) {
return status;
}
}
for (a = e->attr; a != NULL; a = a->next) {
inbytes_left = outbytes_left = strlen(a->name);
status = apr_xlate_conv_buffer(convset, a->name, &inbytes_left, (char *) a->name, &outbytes_left);
if (status) {
return status;
}
inbytes_left = outbytes_left = strlen(a->value);
status = apr_xlate_conv_buffer(convset, a->value, &inbytes_left, (char *) a->value, &outbytes_left);
if (status) {
return status;
}
}
for (ec = e->first_child; ec != NULL; ec = ec->next) {
status = apr_xml_parser_convert_elem(ec, convset);
if (status) {
return status;
}
}
return APR_SUCCESS;
}
/* convert the whole document to EBCDIC */
APU_DECLARE(apr_status_t) apr_xml_parser_convert_doc(apr_pool_t *pool,
apr_xml_doc *pdoc,
apr_xlate_t *convset)
{
apr_status_t status;
/* Don't convert the namespaces: they are constant! */
if (pdoc->namespaces != NULL) {
int i;
apr_array_header_t *namespaces;
namespaces = apr_array_make(pool, pdoc->namespaces->nelts, sizeof(const char *));
if (namespaces == NULL)
return APR_ENOMEM;
for (i = 0; i < pdoc->namespaces->nelts; i++) {
apr_size_t inbytes_left, outbytes_left;
char *ptr = (char *) APR_XML_GET_URI_ITEM(pdoc->namespaces, i);
ptr = apr_pstrdup(pool, ptr);
if ( ptr == NULL)
return APR_ENOMEM;
inbytes_left = outbytes_left = strlen(ptr);
status = apr_xlate_conv_buffer(convset, ptr, &inbytes_left, ptr, &outbytes_left);
if (status) {
return status;
}
apr_xml_insert_uri(namespaces, ptr);
}
pdoc->namespaces = namespaces;
}
return apr_xml_parser_convert_elem(pdoc->root, convset);
}
void ap_xlate_proto_from_ascii(char *buffer, apr_size_t len)
{
apr_size_t inbytes_left, outbytes_left;
inbytes_left = outbytes_left = len;
apr_xlate_conv_buffer(ap_hdrs_from_ascii, buffer, &inbytes_left,
buffer, &outbytes_left);
}
static apr_status_t finish_partial_char(charset_filter_ctx_t *ctx,
/* input buffer: */
const char **cur_str,
apr_size_t *cur_len,
/* output buffer: */
char **out_str,
apr_size_t *out_len)
{
apr_status_t rv;
apr_size_t tmp_input_len;
/* Keep adding bytes from the input string to the saved string until we
* 1) finish the input char
* 2) get an error
* or 3) run out of bytes to add
*/
do {
ctx->buf[ctx->saved] = **cur_str;
++ctx->saved;
++*cur_str;
--*cur_len;
tmp_input_len = ctx->saved;
rv = apr_xlate_conv_buffer(ctx->xlate,
ctx->buf,
&tmp_input_len,
*out_str,
out_len);
} while (rv == APR_INCOMPLETE && *cur_len);
if (rv == APR_SUCCESS) {
ctx->saved = 0;
}
else {
ctx->ees = EES_LIMIT; /* code isn't smart enough to handle chars
* straddling more than two buckets
*/
}
return rv;
}
static apr_status_t read_table(cache_handle_t *handle, request_rec *r,
apr_table_t *table, apr_file_t *file)
{
char w[MAX_STRING_LEN];
char *l;
int p;
apr_status_t rv;
while (1) {
/* ### What about APR_EOF? */
rv = apr_file_gets(w, MAX_STRING_LEN - 1, file);
if (rv != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"Premature end of cache headers.");
return rv;
}
/* Delete terminal (CR?)LF */
p = strlen(w);
/* Indeed, the host's '\n':
'\012' for UNIX; '\015' for MacOS; '\025' for OS/390
-- whatever the script generates.
*/
if (p > 0 && w[p - 1] == '\n') {
if (p > 1 && w[p - 2] == CR) {
w[p - 2] = '\0';
}
else {
w[p - 1] = '\0';
}
}
/* If we've finished reading the headers, break out of the loop. */
if (w[0] == '\0') {
break;
}
#if APR_CHARSET_EBCDIC
/* Chances are that we received an ASCII header text instead of
* the expected EBCDIC header lines. Try to auto-detect:
*/
if (!(l = strchr(w, ':'))) {
int maybeASCII = 0, maybeEBCDIC = 0;
unsigned char *cp, native;
apr_size_t inbytes_left, outbytes_left;
for (cp = w; *cp != '\0'; ++cp) {
native = apr_xlate_conv_byte(ap_hdrs_from_ascii, *cp);
if (apr_isprint(*cp) && !apr_isprint(native))
++maybeEBCDIC;
if (!apr_isprint(*cp) && apr_isprint(native))
++maybeASCII;
}
if (maybeASCII > maybeEBCDIC) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"CGI Interface Error: Script headers apparently ASCII: (CGI = %s)",
r->filename);
inbytes_left = outbytes_left = cp - w;
apr_xlate_conv_buffer(ap_hdrs_from_ascii,
w, &inbytes_left, w, &outbytes_left);
}
}
#endif /*APR_CHARSET_EBCDIC*/
/* if we see a bogus header don't ignore it. Shout and scream */
if (!(l = strchr(w, ':'))) {
return APR_EGENERAL;
}
*l++ = '\0';
while (*l && apr_isspace(*l)) {
++l;
}
apr_table_add(table, w, l);
}
return APR_SUCCESS;
}
AP_DECLARE(int) ap_scan_script_header_err_core(request_rec *r, char *buffer,
int (*getsfunc) (char *, int, void *),
void *getsfunc_data)
{
char x[MAX_STRING_LEN];
char *w, *l;
int p;
int cgi_status = HTTP_UNSET;
apr_table_t *merge;
apr_table_t *cookie_table;
if (buffer) {
*buffer = '\0';
}
w = buffer ? buffer : x;
/* temporary place to hold headers to merge in later */
merge = apr_table_make(r->pool, 10);
/* The HTTP specification says that it is legal to merge duplicate
* headers into one. Some browsers that support Cookies don't like
* merged headers and prefer that each Set-Cookie header is sent
* separately. Lets humour those browsers by not merging.
* Oh what a pain it is.
*/
cookie_table = apr_table_make(r->pool, 2);
apr_table_do(set_cookie_doo_doo, cookie_table, r->err_headers_out, "Set-Cookie", NULL);
while (1) {
int rv = (*getsfunc) (w, MAX_STRING_LEN - 1, getsfunc_data);
if (rv == 0) {
ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_TOCLIENT, 0, r,
"Premature end of script headers: %s",
apr_filepath_name_get(r->filename));
return HTTP_INTERNAL_SERVER_ERROR;
}
else if (rv == -1) {
ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_TOCLIENT, 0, r,
"Script timed out before returning headers: %s",
apr_filepath_name_get(r->filename));
return HTTP_GATEWAY_TIME_OUT;
}
/* Delete terminal (CR?)LF */
p = strlen(w);
/* Indeed, the host's '\n':
'\012' for UNIX; '\015' for MacOS; '\025' for OS/390
-- whatever the script generates.
*/
if (p > 0 && w[p - 1] == '\n') {
if (p > 1 && w[p - 2] == CR) {
w[p - 2] = '\0';
}
else {
w[p - 1] = '\0';
}
}
/*
* If we've finished reading the headers, check to make sure any
* HTTP/1.1 conditions are met. If so, we're done; normal processing
* will handle the script's output. If not, just return the error.
* The appropriate thing to do would be to send the script process a
* SIGPIPE to let it know we're ignoring it, close the channel to the
* script process, and *then* return the failed-to-meet-condition
* error. Otherwise we'd be waiting for the script to finish
* blithering before telling the client the output was no good.
* However, we don't have the information to do that, so we have to
* leave it to an upper layer.
*/
if (w[0] == '\0') {
int cond_status = OK;
/* PR#38070: This fails because it gets confused when a
* CGI Status header overrides ap_meets_conditions.
*
* We can fix that by dropping ap_meets_conditions when
* Status has been set. Since this is the only place
* cgi_status gets used, let's test it explicitly.
*
* The alternative would be to ignore CGI Status when
* ap_meets_conditions returns anything interesting.
* That would be safer wrt HTTP, but would break CGI.
*/
if ((cgi_status == HTTP_UNSET) && (r->method_number == M_GET)) {
cond_status = ap_meets_conditions(r);
}
apr_table_overlap(r->err_headers_out, merge,
APR_OVERLAP_TABLES_MERGE);
if (!apr_is_empty_table(cookie_table)) {
/* the cookies have already been copied to the cookie_table */
apr_table_unset(r->err_headers_out, "Set-Cookie");
r->err_headers_out = apr_table_overlay(r->pool,
r->err_headers_out, cookie_table);
}
return cond_status;
}
/* if we see a bogus header don't ignore it. Shout and scream */
#if APR_CHARSET_EBCDIC
/* Chances are that we received an ASCII header text instead of
* the expected EBCDIC header lines. Try to auto-detect:
*/
if (!(l = strchr(w, ':'))) {
int maybeASCII = 0, maybeEBCDIC = 0;
unsigned char *cp, native;
apr_size_t inbytes_left, outbytes_left;
for (cp = w; *cp != '\0'; ++cp) {
native = apr_xlate_conv_byte(ap_hdrs_from_ascii, *cp);
if (apr_isprint(*cp) && !apr_isprint(native))
++maybeEBCDIC;
if (!apr_isprint(*cp) && apr_isprint(native))
++maybeASCII;
}
if (maybeASCII > maybeEBCDIC) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
"CGI Interface Error: Script headers apparently ASCII: (CGI = %s)",
r->filename);
inbytes_left = outbytes_left = cp - w;
apr_xlate_conv_buffer(ap_hdrs_from_ascii,
w, &inbytes_left, w, &outbytes_left);
}
}
#endif /*APR_CHARSET_EBCDIC*/
if (!(l = strchr(w, ':'))) {
char malformed[(sizeof MALFORMED_MESSAGE) + 1
+ MALFORMED_HEADER_LENGTH_TO_SHOW];
strcpy(malformed, MALFORMED_MESSAGE);
strncat(malformed, w, MALFORMED_HEADER_LENGTH_TO_SHOW);
if (!buffer) {
/* Soak up all the script output - may save an outright kill */
while ((*getsfunc) (w, MAX_STRING_LEN - 1, getsfunc_data)) {
continue;
}
}
ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_TOCLIENT, 0, r,
"%s: %s", malformed,
apr_filepath_name_get(r->filename));
return HTTP_INTERNAL_SERVER_ERROR;
}
*l++ = '\0';
while (*l && apr_isspace(*l)) {
++l;
}
if (!strcasecmp(w, "Content-type")) {
char *tmp;
/* Nuke trailing whitespace */
char *endp = l + strlen(l) - 1;
while (endp > l && apr_isspace(*endp)) {
*endp-- = '\0';
}
tmp = apr_pstrdup(r->pool, l);
ap_content_type_tolower(tmp);
ap_set_content_type(r, tmp);
}
/*
* If the script returned a specific status, that's what
* we'll use - otherwise we assume 200 OK.
*/
else if (!strcasecmp(w, "Status")) {
r->status = cgi_status = atoi(l);
r->status_line = apr_pstrdup(r->pool, l);
}
else if (!strcasecmp(w, "Location")) {
apr_table_set(r->headers_out, w, l);
}
else if (!strcasecmp(w, "Content-Length")) {
apr_table_set(r->headers_out, w, l);
}
else if (!strcasecmp(w, "Content-Range")) {
apr_table_set(r->headers_out, w, l);
}
else if (!strcasecmp(w, "Transfer-Encoding")) {
apr_table_set(r->headers_out, w, l);
}
/*
* If the script gave us a Last-Modified header, we can't just
* pass it on blindly because of restrictions on future values.
*/
else if (!strcasecmp(w, "Last-Modified")) {
ap_update_mtime(r, apr_date_parse_http(l));
ap_set_last_modified(r);
}
else if (!strcasecmp(w, "Set-Cookie")) {
apr_table_add(cookie_table, w, l);
}
else {
apr_table_add(merge, w, l);
}
}
return OK;
}
/* xlate_out_filter() handles (almost) arbitrary conversions from one charset
* to another...
* translation is determined in the fixup hook (find_code_page), which is
* where the filter's context data is set up... the context data gives us
* the translation handle
*/
static apr_status_t xlate_out_filter(ap_filter_t *f, apr_bucket_brigade *bb)
{
charset_req_t *reqinfo = ap_get_module_config(f->r->request_config,
&charset_lite_module);
charset_dir_t *dc = ap_get_module_config(f->r->per_dir_config,
&charset_lite_module);
charset_filter_ctx_t *ctx = f->ctx;
apr_bucket *dptr, *consumed_bucket;
const char *cur_str;
apr_size_t cur_len, cur_avail;
char tmp[OUTPUT_XLATE_BUF_SIZE];
apr_size_t space_avail;
int done;
apr_status_t rv = APR_SUCCESS;
if (!ctx) {
/* this is SetOutputFilter path; grab the preallocated context,
* if any; note that if we decided not to do anything in an earlier
* handler, we won't even have a reqinfo
*/
if (reqinfo) {
ctx = f->ctx = reqinfo->output_ctx;
reqinfo->output_ctx = NULL; /* prevent SNAFU if user coded us twice
* in the filter chain; we can't have two
* instances using the same context
*/
}
if (!ctx) { /* no idea how to translate; don't do anything */
ctx = f->ctx = apr_pcalloc(f->r->pool, sizeof(charset_filter_ctx_t));
ctx->dc = dc;
ctx->noop = 1;
}
}
/* Check the mime type to see if translation should be performed.
*/
if (!ctx->noop && ctx->xlate == NULL) {
const char *mime_type = f->r->content_type;
if (mime_type && (strncasecmp(mime_type, "text/", 5) == 0 ||
#if APR_CHARSET_EBCDIC
/* On an EBCDIC machine, be willing to translate mod_autoindex-
* generated output. Otherwise, it doesn't look too cool.
*
* XXX This isn't a perfect fix because this doesn't trigger us
* to convert from the charset of the source code to ASCII. The
* general solution seems to be to allow a generator to set an
* indicator in the r specifying that the body is coded in the
* implementation character set (i.e., the charset of the source
* code). This would get several different types of documents
* translated properly: mod_autoindex output, mod_status output,
* mod_info output, hard-coded error documents, etc.
*/
strcmp(mime_type, DIR_MAGIC_TYPE) == 0 ||
#endif
strncasecmp(mime_type, "message/", 8) == 0 ||
dc->force_xlate == FX_FORCE)) {
rv = apr_xlate_open(&ctx->xlate,
dc->charset_default, dc->charset_source, f->r->pool);
if (rv != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, f->r, APLOGNO(01453)
"can't open translation %s->%s",
dc->charset_source, dc->charset_default);
ctx->noop = 1;
}
else {
if (apr_xlate_sb_get(ctx->xlate, &ctx->is_sb) != APR_SUCCESS) {
ctx->is_sb = 0;
}
}
}
else {
ctx->noop = 1;
if (mime_type) {
ap_log_rerror(APLOG_MARK, APLOG_TRACE6, 0, f->r,
"mime type is %s; no translation selected",
mime_type);
}
}
}
ap_log_rerror(APLOG_MARK, APLOG_TRACE6, 0, f->r,
"xlate_out_filter() - "
"charset_source: %s charset_default: %s",
dc && dc->charset_source ? dc->charset_source : "(none)",
dc && dc->charset_default ? dc->charset_default : "(none)");
if (!ctx->ran) { /* filter never ran before */
chk_filter_chain(f);
ctx->ran = 1;
if (!ctx->noop && !ctx->is_sb) {
/* We're not converting between two single-byte charsets, so unset
* Content-Length since it is unlikely to remain the same.
*/
apr_table_unset(f->r->headers_out, "Content-Length");
}
}
if (ctx->noop) {
return ap_pass_brigade(f->next, bb);
}
dptr = APR_BRIGADE_FIRST(bb);
done = 0;
cur_len = 0;
space_avail = sizeof(tmp);
consumed_bucket = NULL;
while (!done) {
if (!cur_len) { /* no bytes left to process in the current bucket... */
if (consumed_bucket) {
apr_bucket_delete(consumed_bucket);
consumed_bucket = NULL;
}
if (dptr == APR_BRIGADE_SENTINEL(bb)) {
break;
}
if (APR_BUCKET_IS_EOS(dptr)) {
cur_len = -1; /* XXX yuck, but that tells us to send
* eos down; when we minimize our bb construction
* we'll fix this crap */
if (ctx->saved) {
/* Oops... we have a partial char from the previous bucket
* that won't be completed because there's no more data.
*/
rv = APR_INCOMPLETE;
ctx->ees = EES_INCOMPLETE_CHAR;
}
break;
}
if (APR_BUCKET_IS_METADATA(dptr)) {
apr_bucket *metadata_bucket;
metadata_bucket = dptr;
dptr = APR_BUCKET_NEXT(dptr);
APR_BUCKET_REMOVE(metadata_bucket);
rv = send_bucket_downstream(f, metadata_bucket);
if (rv != APR_SUCCESS) {
done = 1;
}
continue;
}
rv = apr_bucket_read(dptr, &cur_str, &cur_len, APR_BLOCK_READ);
if (rv != APR_SUCCESS) {
ctx->ees = EES_BUCKET_READ;
break;
}
consumed_bucket = dptr; /* for axing when we're done reading it */
dptr = APR_BUCKET_NEXT(dptr); /* get ready for when we access the
* next bucket */
}
/* Try to fill up our tmp buffer with translated data. */
cur_avail = cur_len;
if (cur_len) { /* maybe we just hit the end of a pipe (len = 0) ? */
if (ctx->saved) {
/* Rats... we need to finish a partial character from the previous
* bucket.
*/
char *tmp_tmp;
tmp_tmp = tmp + sizeof(tmp) - space_avail;
rv = finish_partial_char(ctx,
&cur_str, &cur_len,
&tmp_tmp, &space_avail);
}
else {
rv = apr_xlate_conv_buffer(ctx->xlate,
cur_str, &cur_avail,
tmp + sizeof(tmp) - space_avail, &space_avail);
/* Update input ptr and len after consuming some bytes */
cur_str += cur_len - cur_avail;
cur_len = cur_avail;
if (rv == APR_INCOMPLETE) { /* partial character at end of input */
/* We need to save the final byte(s) for next time; we can't
* convert it until we look at the next bucket.
*/
rv = set_aside_partial_char(ctx, cur_str, cur_len);
cur_len = 0;
}
}
}
if (rv != APR_SUCCESS) {
/* bad input byte or partial char too big to store */
done = 1;
}
if (space_avail < XLATE_MIN_BUFF_LEFT) {
/* It is time to flush, as there is not enough space left in the
* current output buffer to bother with converting more data.
*/
rv = send_downstream(f, tmp, sizeof(tmp) - space_avail);
if (rv != APR_SUCCESS) {
done = 1;
}
/* tmp is now empty */
space_avail = sizeof(tmp);
}
}
if (rv == APR_SUCCESS) {
if (space_avail < sizeof(tmp)) { /* gotta write out what we converted */
rv = send_downstream(f, tmp, sizeof(tmp) - space_avail);
}
}
if (rv == APR_SUCCESS) {
if (cur_len == -1) {
rv = send_eos(f);
}
}
else {
log_xlate_error(f, rv);
}
return rv;
}
/* xlate_brigade() is used to filter request and response bodies
*
* we'll stop when one of the following occurs:
* . we run out of buckets
* . we run out of space in the output buffer
* . we hit an error or metadata
*
* inputs:
* bb: brigade to process
* buffer: storage to hold the translated characters
* buffer_avail: size of buffer
* (and a few more uninteresting parms)
*
* outputs:
* return value: APR_SUCCESS or some error code
* bb: we've removed any buckets representing the
* translated characters; the eos bucket, if
* present, will be left in the brigade
* buffer: filled in with translated characters
* buffer_avail: updated with the bytes remaining
* hit_eos: did we hit an EOS bucket?
*/
static apr_status_t xlate_brigade(charset_filter_ctx_t *ctx,
apr_bucket_brigade *bb,
char *buffer,
apr_size_t *buffer_avail,
int *hit_eos)
{
apr_bucket *b = NULL; /* set to NULL only to quiet some gcc */
apr_bucket *consumed_bucket;
const char *bucket;
apr_size_t bytes_in_bucket; /* total bytes read from current bucket */
apr_size_t bucket_avail; /* bytes left in current bucket */
apr_status_t rv = APR_SUCCESS;
*hit_eos = 0;
bucket_avail = 0;
consumed_bucket = NULL;
while (1) {
if (!bucket_avail) { /* no bytes left to process in the current bucket... */
if (consumed_bucket) {
apr_bucket_delete(consumed_bucket);
consumed_bucket = NULL;
}
b = APR_BRIGADE_FIRST(bb);
if (b == APR_BRIGADE_SENTINEL(bb) ||
APR_BUCKET_IS_METADATA(b)) {
break;
}
rv = apr_bucket_read(b, &bucket, &bytes_in_bucket, APR_BLOCK_READ);
if (rv != APR_SUCCESS) {
ctx->ees = EES_BUCKET_READ;
break;
}
bucket_avail = bytes_in_bucket;
consumed_bucket = b; /* for axing when we're done reading it */
}
if (bucket_avail) {
/* We've got data, so translate it. */
if (ctx->saved) {
/* Rats... we need to finish a partial character from the previous
* bucket.
*
* Strangely, finish_partial_char() increments the input buffer
* pointer but does not increment the output buffer pointer.
*/
apr_size_t old_buffer_avail = *buffer_avail;
rv = finish_partial_char(ctx,
&bucket, &bucket_avail,
&buffer, buffer_avail);
buffer += old_buffer_avail - *buffer_avail;
}
else {
apr_size_t old_buffer_avail = *buffer_avail;
apr_size_t old_bucket_avail = bucket_avail;
rv = apr_xlate_conv_buffer(ctx->xlate,
bucket, &bucket_avail,
buffer,
buffer_avail);
buffer += old_buffer_avail - *buffer_avail;
bucket += old_bucket_avail - bucket_avail;
if (rv == APR_INCOMPLETE) { /* partial character at end of input */
/* We need to save the final byte(s) for next time; we can't
* convert it until we look at the next bucket.
*/
rv = set_aside_partial_char(ctx, bucket, bucket_avail);
bucket_avail = 0;
}
}
if (rv != APR_SUCCESS) {
/* bad input byte or partial char too big to store */
break;
}
if (*buffer_avail < XLATE_MIN_BUFF_LEFT) {
/* if any data remains in the current bucket, split there */
if (bucket_avail) {
apr_bucket_split(b, bytes_in_bucket - bucket_avail);
}
apr_bucket_delete(b);
break;
}
}
}
if (!APR_BRIGADE_EMPTY(bb)) {
b = APR_BRIGADE_FIRST(bb);
if (APR_BUCKET_IS_EOS(b)) {
/* Leave the eos bucket in the brigade for reporting to
* subsequent filters.
*/
*hit_eos = 1;
if (ctx->saved) {
/* Oops... we have a partial char from the previous bucket
* that won't be completed because there's no more data.
*/
rv = APR_INCOMPLETE;
ctx->ees = EES_INCOMPLETE_CHAR;
}
}
}
return rv;
}
