CommandLine::CommandLine(int argc, char* const argv[],
const char* user, const char* pass, const char* usage_extra) :
CommandLineBase(argc, argv, "hm:p:s:u:D?"),
dtest_mode_(false),
run_mode_(0),
server_(0),
user_(user && *user ? user : 0),
pass_(pass && *pass ? pass : ""),
usage_extra_(usage_extra)
{
int ch;
while (successful() && ((ch = parse_next()) != EOF)) {
switch (ch) {
case 'm': run_mode_ = atoi(option_argument()); break;
case 'p': pass_ = option_argument(); break;
case 's': server_ = option_argument(); break;
case 'u': user_ = option_argument(); break;
case 'D': dtest_mode_ = true; break;
default:
parse_error();
return;
}
}
finish_parse();
}
void
cgi_mpfd_t::ext_parse_cb (int status)
{
OKDBG4(SVC_MPFD, CHATTER, "cfgi_mpfd_t::ext_parse_cb(%d)", status);
if (status == HTTP_OK) {
MPFD_INC_STATE;
resume ();
} else {
finish_parse (status);
}
}
/* ------------------------------------------------------------------------
@NAME : bt_parse_entry_s()
@INPUT : entry_text - string containing the entire entry to parse,
or NULL meaning we're done, please cleanup
options - standard btparse options bitmap
line - current line number (if that makes any sense)
-- passed to the parser to set zzline, so that
lexical and syntax errors are properly localized
@OUTPUT : *top - newly-allocated AST for the entry
(or NULL if entry_text was NULL, ie. at EOF)
@RETURNS : 1 with *top set to AST for entry on successful read/parse
1 with *top==NULL if entry_text was NULL, ie. at EOF
0 if any serious errors seen in input (*top is still
set to the AST, but only for as much of the input as we
were able to parse)
(A "serious" error is a lexical or syntax error; "trivial"
errors such as warnings and notifications count as "success"
for the purposes of this function's return value.)
@DESCRIPTION: Parses a BibTeX entry contained in a string.
@GLOBALS :
@CALLS : ANTLR
@CREATED : 1997/01/18, GPW (from code in bt_parse_entry())
@MODIFIED :
-------------------------------------------------------------------------- */
AST * bt_parse_entry_s (char * entry_text,
char * filename,
int line,
ushort options,
boolean * status)
{
AST * entry_ast = NULL;
static int * err_counts = NULL;
if (options & BTO_STRINGMASK) /* any string options set? */
{
usage_error ("bt_parse_entry_s: illegal options "
"(string options not allowed");
}
InputFilename = filename;
err_counts = bt_get_error_counts (err_counts);
if (entry_text == NULL) /* signal to clean up */
{
finish_parse (&err_counts);
if (status) *status = TRUE;
return NULL;
}
zzast_sp = ZZAST_STACKSIZE; /* workaround apparent pccts bug */
start_parse (NULL, entry_text, line);
entry (&entry_ast); /* enter the parser */
++zzasp; /* why is this done? */
if (entry_ast == NULL) /* can happen with very bad input */
{
if (status) *status = FALSE;
return entry_ast;
}
#if DEBUG
dump_ast ("bt_parse_entry_s: single entry, after parsing:\n",
entry_ast);
#endif
bt_postprocess_entry (entry_ast,
StringOptions[entry_ast->metatype] | options);
#if DEBUG
dump_ast ("bt_parse_entry_s: single entry, after post-processing:\n",
entry_ast);
#endif
if (status) *status = parse_status (err_counts);
return entry_ast;
} /* bt_parse_entry_s () */
void
async_dumper_t::parse_guts ()
{
int rc = 0;
while (bp < endp) {
rc = abuf->dump (bp, endp - bp);
if (rc < 0)
break; // EOF or WAIT
bp += rc;
}
if (bp == endp || rc == ABUF_EOFCHAR)
finish_parse (0);
// otherwise, we're waiting
}
CommandLine::CommandLine(int argc, char* const argv[]) :
CommandLineBase(argc, argv, "hi:o:p:s:t:u:1:?"),
input_(0),
output_(0),
pass_(""),
server_(0),
user_(0),
input_source_(ss_unknown),
output_sink_(ss_unknown)
{
// Parse the command line
int ch;
while (successful() && ((ch = parse_next()) != EOF)) {
switch (ch) {
case 'i':
case 't':
case '1':
if (input_) {
std::cerr << "Warning: overriding previous input "
"source! Only last -i, -t or -1 is "
"effective.\n";
}
input_ = option_argument();
input_source_ =
(ch == '1' ? ss_ssqls1 :
ch == 'i' ? ss_ssqls2 :
ss_table);
break;
case 'o':
output_ = option_argument();
output_sink_ = ss_ssqls2;
break;
case 'p':
pass_ = option_argument();
break;
case 's':
server_ = option_argument();
break;
case 'u':
user_ = option_argument();
break;
default:
parse_error();
}
}
finish_parse();
// Figure out whether command line makes sense, and if not, tell
// user about it.
if (successful()) {
if (input_source_ == ss_unknown) {
parse_error("No input source given! Need -i, -t or -1.");
}
else if ((input_source_ != ss_ssqls2) && !output_) {
parse_error("Need -o if you give -t or -1!");
}
}
}
/* ------------------------------------------------------------------------
@NAME : bt_parse_entry()
@INPUT : infile - file to read next entry from
options - standard btparse options bitmap
@OUTPUT : *top - AST for the entry, or NULL if no entries left in file
@RETURNS : same as bt_parse_entry_s()
@DESCRIPTION: Starts (or continues) parsing from a file.
@GLOBALS :
@CALLS :
@CREATED : Jan 1997, GPW
@MODIFIED :
-------------------------------------------------------------------------- */
AST * bt_parse_entry (FILE * infile,
char * filename,
ushort options,
boolean * status)
{
AST * entry_ast = NULL;
static int * err_counts = NULL;
static FILE * prev_file = NULL;
if (prev_file != NULL && infile != prev_file)
{
usage_error ("bt_parse_entry: you can't interleave calls "
"across different files");
}
if (options & BTO_STRINGMASK) /* any string options set? */
{
usage_error ("bt_parse_entry: illegal options "
"(string options not allowed)");
}
InputFilename = filename;
err_counts = bt_get_error_counts (err_counts);
if (feof (infile))
{
if (prev_file != NULL) /* haven't already done the cleanup */
{
prev_file = NULL;
finish_parse (&err_counts);
}
else
{
usage_warning ("bt_parse_entry: second attempt to read past eof");
}
if (status) *status = TRUE;
return NULL;
}
/*
* Here we do some nasty poking about the innards of PCCTS in order to
* enter the parser multiple times on the same input stream. This code
* comes from expanding the macro invokation:
*
* ANTLR (entry (top), infile);
*
* When LL_K, ZZINF_LOOK, and DEMAND_LOOK are all undefined, this
* ultimately expands to
*
* zzbufsize = ZZLEXBUFSIZE;
* {
* static char zztoktext[ZZLEXBUFSIZE];
* zzlextext = zztoktext;
* zzrdstream (f);
* zzgettok();
* }
* entry (top);
* ++zzasp;
*
* (I'm expanding hte zzenterANTLR, zzleaveANTLR, and zzPrimateLookAhead
* macros, but leaving ZZLEXBUFSIZE -- a simple constant -- alone.)
*
* There are two problems with this: 1) zztoktext is a statically
* allocated buffer, and when it overflows we just ignore further
* characters that should belong to that lexeme; and 2) zzrdstream() and
* zzgettok() are called every time we enter the parser, which means the
* token left over from the previous entry will be discarded when we
* parse entries 2 .. N.
*
* I handle the static buffer problem with alloc_lex_buffer() and
* realloc_lex_buffer() (in lex_auxiliary.c), and by rewriting the ZZCOPY
* macro to call realloc_lex_buffer() when overflow is detected.
*
* I handle the extra token-read by hanging on to a static file
* pointer, prev_file, between calls to bt_parse_entry() -- when
* the program starts it is NULL, and we reset it to NULL on
* finishing a file. Thus, any call that is the first on a given
* file will allocate the lexical buffer and read the first token;
* thereafter, we skip those steps, and free the buffer on reaching
* end-of-file. Currently, this method precludes interleaving
* calls to bt_parse_entry() on different files -- perhaps I could
* fix this with the zz{save,restore}_{antlr,dlg}_state()
* functions?
*/
zzast_sp = ZZAST_STACKSIZE; /* workaround apparent pccts bug */
#if defined(LL_K) || defined(ZZINF_LOOK) || defined(DEMAND_LOOK)
# error One of LL_K, ZZINF_LOOK, or DEMAND_LOOK was defined
#endif
if (prev_file == NULL) /* only read from input stream if */
{ /* starting afresh with a file */
start_parse (infile, NULL, 0);
prev_file = infile;
}
assert (prev_file == infile);
entry (&entry_ast); /* enter the parser */
++zzasp; /* why is this done? */
if (entry_ast == NULL) /* can happen with very bad input */
{
if (status) *status = FALSE;
return entry_ast;
}
#if DEBUG
dump_ast ("bt_parse_entry(): single entry, after parsing:\n",
entry_ast);
#endif
bt_postprocess_entry (entry_ast,
StringOptions[entry_ast->metatype] | options);
#if DEBUG
dump_ast ("bt_parse_entry(): single entry, after post-processing:\n",
entry_ast);
#endif
if (status) *status = parse_status (err_counts);
return entry_ast;
} /* bt_parse_entry() */
void
cgi_mpfd_t::parse_guts ()
{
abuf_stat_t r = ABUF_OK;
str dummy;
bool inc;
while (r == ABUF_OK) {
OKDBG4(SVC_MPFD, CHATTER, "cgi_mpfd_t::parse_guts loop "
"r=%d, state=%d", int (r), int (state));
inc = true;
switch (state) {
case MPFD_START:
r = match_boundary ();
break;
case MPFD_EOL0:
r = require_crlf ();
break;
case MPFD_KEY:
r = gobble_crlf ();
if (r == ABUF_OK) {
if (to_start) {
state = MPFD_START;
to_start = false;
} else
state = MPFD_SEARCH;
inc = false;
} else if (r == ABUF_NOMATCH) {
r = delimit_key (&mpfd_key);
if (r == ABUF_OK)
kt = mpfd_ktmap.lookup (mpfd_key);
} // else a WAIT or an EOF in gobble_crlf
break;
case MPFD_SPC:
r = abuf->skip_hws (1);
cdp.reset ();
break;
case MPFD_VALUE:
if (kt == MPFD_DISPOSITION) {
OKDBG3(SVC_MPFD, CHATTER, "cgi_mpfd_t::parse_guts branch to nested "
"content disposition parser");
cdp.parse (wrap (this, &cgi_mpfd_t::ext_parse_cb));
OKDBG3(SVC_MPFD, CHATTER, "cgi_mpfd_t::parse_guts return due to "
"content disposition parser");
return;
} else if (kt == MPFD_TYPE) {
r = delimit_val (&content_typ);
if (r == ABUF_OK) {
if (multipart_rxx.match (content_typ)) {
add_boundary (multipart_rxx[1]);
to_start = true;
}
}
} else {
r = delimit_val (&dummy);
}
break;
case MPFD_EOL1A:
r = require_crlf ();
break;
case MPFD_EOL1B:
if (kt == MPFD_DISPOSITION) {
if (cdp.typ == CONTDISP_FORMDAT) {
cgi_key = cdp.name;
filename = cdp.filename;
attach = filename;
} else if (cdp.typ == CONTDISP_ATTACH) {
filename = cdp.filename;
attach = true;
} else {
r = ABUF_PARSE_ERR;
}
}
state = MPFD_KEY;
inc = false;
break;
case MPFD_SEARCH:
r = match_boundary (&dat);
if (r == ABUF_OK) {
if (cgi_key) {
if (attach)
finsert (cgi_key, cgi_file_t (filename, content_typ, dat));
else
insert (cgi_key, dat);
cgi_key = NULL;
}
// in this case, no more boundaries
} else if (r == ABUF_PARSE_ERR) {
r = ABUF_OK;
state = MPFD_EOF;
inc = false;
}
break;
case MPFD_SEARCH2:
r = parse_2dash ();
if (r == ABUF_OK) {
remove_boundary ();
nxt_state = MPFD_SEARCH;
} else if (r == ABUF_NOMATCH) {
r = ABUF_OK;
nxt_state = MPFD_KEY;
}
break;
case MPFD_SEARCH3:
r = require_crlf ();
if (r == ABUF_OK) {
state = nxt_state;
inc = false;
}
break;
case MPFD_EOF:
r = abuf->skip_ws ();
break;
default:
break;
}
if (r == ABUF_OK && inc)
MPFD_INC_STATE;
}
OKDBG4(SVC_MPFD, CHATTER, "cgi_mpfd_t::parse_guts exit loop "
"r=%d, state=%d", int (r), int (state));
switch (r) {
case ABUF_EOF:
int rc;
if (state == MPFD_EOF) {
rc = HTTP_OK;
} else {
rc = HTTP_UNEXPECTED_EOF;
warn ("mpfd EOF in state %d after %d bytes read\n",
int (state), abuf ? abuf->get_ccnt () : -1);
}
finish_parse (rc);
break;
case ABUF_PARSE_ERR:
finish_parse (HTTP_BAD_REQUEST);
break;
default:
break;
}
}
void
contdisp_parser_t::parse_guts ()
{
abuf_stat_t r = ABUF_OK;
bool inc;
bool flag = true;
while (r == ABUF_OK && flag) {
OKDBG4(SVC_MPFD, CHATTER, "contdisp_parser_t::parse_guts loop "
"r=%d, state=%d", int (r), int (state));
inc = true;
switch (state) {
case CONTDISP_START:
r = delimit (&typ_scr, ';', true, true);
break;
case CONTDISP_SEP1:
r = abuf->skip_hws (1);
if (mystrcmp (typ_scr.cstr(), "form-data")) {
typ = CONTDISP_FORMDAT;
} else if (mystrcmp (typ_scr.cstr(), "attachment")) {
state = CONTDISP_FILENAME_KEY;
inc = true;
typ = CONTDISP_ATTACH;
}
break;
case CONTDISP_NAME_KEY:
r = force_match ("name=\"");
break;
case CONTDISP_NAME_VAL:
r = delimit (&name, '"', false, true);
break;
case CONTDISP_SEP2A:
r = eol ();
if (r == ABUF_OK) flag = false;
else if (r == ABUF_NOMATCH) r = ABUF_OK;
break;
case CONTDISP_SEP2B:
r = abuf->requirechar (';');
break;
case CONTDISP_SEP2C:
r = abuf->skip_hws ();
break;
case CONTDISP_FILENAME_KEY:
r = force_match ("filename=\"");
break;
case CONTDISP_FILENAME_VAL:
r = delimit (&filename_scr, '\r', false, false);
if (r == ABUF_PARSE_ERR)
r = ABUF_OK; // found '\n' before '\r' -- that's OK
if (r == ABUF_OK) {
filename = str (filename_scr.cstr (), filename_scr.len () - 1);
flag = false;
}
break;
default:
break;
}
if (r == ABUF_OK && inc)
state = static_cast<contdisp_state_t> (state + 1);
}
OKDBG4(SVC_MPFD, CHATTER, "contdisp_parser_t::parse_guts exit loop "
"r=%d, state=%d", int (r), int (state));
switch (r) {
case ABUF_OK:
finish_parse (HTTP_OK);
break;
case ABUF_EOF:
case ABUF_PARSE_ERR:
finish_parse (HTTP_BAD_REQUEST);
break;
default:
break;
}
}
