/*
- * Lexical scanner for Bacula configuration file
- *
- * Version $Id$
- *
- */
+ Bacula® - The Network Backup Solution
-/*
- Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
+ Copyright (C) 2000-2012 Free Software Foundation Europe e.V.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
+ The main author of Bacula is Kern Sibbald, with contributions from
+ many others, a complete list can be found in the file AUTHORS.
+ This program is Free Software; you can redistribute it and/or
+ modify it under the terms of version three of the GNU Affero General Public
+ License as published by the Free Software Foundation and included
+ in the file LICENSE.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+ You should have received a copy of the GNU Affero General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+ Bacula® is a registered trademark of Kern Sibbald.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
+/*
+ * Lexical scanner for Bacula configuration file
+ *
+ * Kern Sibbald, 2000
+ *
*/
#include "bacula.h"
extern int debug_level;
+/* Debug level for this source file */
+static const int dbglvl = 5000;
+
/*
* Scan to "logical" end of line. I.e. end of line,
- * or semicolon.
+ * or semicolon, but stop on T_EOB (same as end of
+ * line except it is not eaten).
*/
void scan_to_eol(LEX *lc)
{
int token;
- Dmsg0(150, "start scan to eof\n");
- while ((token = lex_get_token(lc)) != T_EOL) {
+ Dmsg0(dbglvl, "start scan to eof\n");
+ while ((token = lex_get_token(lc, T_ALL)) != T_EOL) {
+ if (token == T_EOB) {
+ lex_unget_char(lc);
+ return;
+ }
}
- Dmsg0(150, "done scan to eof\n");
}
-
/*
- * Format a scanner error message
+ * Get next token, but skip EOL
*/
-void s_err(char *file, int line, LEX *lc, char *msg, ...)
+int scan_to_next_not_eol(LEX * lc)
+{
+ int token;
+ do {
+ token = lex_get_token(lc, T_ALL);
+ } while (token == T_EOL);
+ return token;
+}
+
+/*
+ * Format a scanner error message
+ */
+static void s_err(const char *file, int line, LEX *lc, const char *msg, ...)
{
va_list arg_ptr;
char buf[MAXSTRING];
+ char more[MAXSTRING];
va_start(arg_ptr, msg);
bvsnprintf(buf, sizeof(buf), msg, arg_ptr);
va_end(arg_ptr);
-
- e_msg(file, line, M_ERROR_TERM, 0, "Config error: %s,\n\
- : Line %d, col %d of file %s\n%s\n",
- buf, lc->line_no, lc->col_no, lc->fname, lc->line);
+
+ if (lc->err_type == 0) { /* M_ERROR_TERM by default */
+ lc->err_type = M_ERROR_TERM;
+ }
+
+ if (lc->line_no > lc->begin_line_no) {
+ bsnprintf(more, sizeof(more),
+ _("Problem probably begins at line %d.\n"), lc->begin_line_no);
+ } else {
+ more[0] = 0;
+ }
+ if (lc->line_no > 0) {
+ e_msg(file, line, lc->err_type, 0, _("Config error: %s\n"
+" : line %d, col %d of file %s\n%s\n%s"),
+ buf, lc->line_no, lc->col_no, lc->fname, lc->line, more);
+ } else {
+ e_msg(file, line, lc->err_type, 0, _("Config error: %s\n"), buf);
+ }
}
+void lex_set_default_error_handler(LEX *lf)
+{
+ lf->scan_error = s_err;
+}
+
+/*
+ * Set err_type used in error_handler
+ * return the old value
+ */
+int lex_set_error_handler_error_type(LEX *lf, int err_type)
+{
+ int old = lf->err_type;
+ lf->err_type = err_type;
+ return old;
+}
/*
* Free the current file, and retrieve the contents
* of the previous packet if any.
*/
-LEX *
-lex_close_file(LEX *lf)
+LEX *lex_close_file(LEX *lf)
{
LEX *of;
- Dmsg1(20, "Close lex file: %s\n", lf->fname);
if (lf == NULL) {
- Emsg0(M_ABORT, 0, "Close of NULL file\n");
+ Emsg0(M_ABORT, 0, _("Close of NULL file\n"));
}
+ Dmsg1(dbglvl, "Close lex file: %s\n", lf->fname);
+
of = lf->next;
- fclose(lf->fd);
- Dmsg1(29, "Close cfg file %s\n", lf->fname);
+ if (lf->bpipe) {
+ close_bpipe(lf->bpipe);
+ lf->bpipe = NULL;
+ } else {
+ fclose(lf->fd);
+ }
+ Dmsg1(dbglvl, "Close cfg file %s\n", lf->fname);
free(lf->fname);
+ free_memory(lf->line);
+ lf->line = NULL;
if (of) {
of->options = lf->options; /* preserve options */
memcpy(lf, of, sizeof(LEX));
- Dmsg1(29, "Restart scan of cfg file %s\n", of->fname);
+ Dmsg1(dbglvl, "Restart scan of cfg file %s\n", of->fname);
} else {
of = lf;
lf = NULL;
return lf;
}
-/*
+/*
* Open a new configuration file. We push the
* state of the current file (lf) so that we
* can do includes. This is a bit of a hammer.
* the next field.
*
*/
-LEX *
-lex_open_file(LEX *lf, char *filename)
+LEX *lex_open_file(LEX *lf, const char *filename, LEX_ERROR_HANDLER *scan_error)
+
{
LEX *nf;
FILE *fd;
+ BPIPE *bpipe = NULL;
char *fname = bstrdup(filename);
-
- if ((fd = fopen(fname, "r")) == NULL) {
- Emsg2(M_ABORT, 0, "Cannot open config file %s: %s\n", fname, strerror(errno));
+ if (fname[0] == '|') {
+ if ((bpipe = open_bpipe(fname+1, 0, "rb")) == NULL) {
+ free(fname);
+ return NULL;
+ }
+ fd = bpipe->rfd;
+ } else if ((fd = fopen(fname, "rb")) == NULL) {
+ free(fname);
+ return NULL;
}
- Dmsg1(29, "Open config file: %s\n", fname);
+ Dmsg1(400, "Open config file: %s\n", fname);
nf = (LEX *)malloc(sizeof(LEX));
- if (lf) {
+ if (lf) {
memcpy(nf, lf, sizeof(LEX));
memset(lf, 0, sizeof(LEX));
- lf->next = nf; /* if have lf, push it behind new one */
+ lf->next = nf; /* if have lf, push it behind new one */
lf->options = nf->options; /* preserve user options */
+ /*
+ * preserve err_type to prevent bacula exiting on 'reload'
+ * if config is invalid. Fixes bug #877
+ */
+ lf->err_type = nf->err_type;
} else {
- lf = nf; /* start new packet */
+ lf = nf; /* start new packet */
memset(lf, 0, sizeof(LEX));
+ lex_set_error_handler_error_type(lf, M_ERROR_TERM);
+ }
+ if (scan_error) {
+ lf->scan_error = scan_error;
+ } else {
+ lex_set_default_error_handler(lf);
}
lf->fd = fd;
+ lf->bpipe = bpipe;
lf->fname = fname;
+ lf->line = get_memory(5000);
lf->state = lex_none;
lf->ch = L_EOL;
- Dmsg1(29, "Return lex=%x\n", lf);
+ Dmsg1(dbglvl, "Return lex=%x\n", lf);
return lf;
}
-/*
+/*
* Get the next character from the input.
* Returns the character or
* L_EOF if end of file
* L_EOL if end of line
*/
-int
-lex_get_char(LEX *lf)
+int lex_get_char(LEX *lf)
{
- if (lf->ch == L_EOF)
- Emsg0(M_ABORT, 0, "get_char: called after EOF\n");
+ if (lf->ch == L_EOF) {
+ Emsg0(M_ABORT, 0, _("get_char: called after EOF."
+ " You may have a open double quote without the closing double quote.\n"));
+ }
if (lf->ch == L_EOL) {
- if (fgets(lf->line, MAXSTRING, lf->fd) == NULL) {
- lf->ch = L_EOF;
- if (lf->next) {
- lex_close_file(lf);
- }
- return lf->ch;
+ if (bfgets(lf->line, lf->fd) == NULL) {
+ lf->ch = L_EOF;
+ if (lf->next) {
+ lex_close_file(lf);
+ }
+ return lf->ch;
}
lf->line_no++;
lf->col_no = 0;
+ Dmsg2(1000, "fget line=%d %s", lf->line_no, lf->line);
}
- lf->ch = lf->line[lf->col_no];
+ lf->ch = (uint8_t)lf->line[lf->col_no];
if (lf->ch == 0) {
lf->ch = L_EOL;
} else {
lf->col_no++;
}
- Dmsg2(900, "lex_get_char: %c %d\n", lf->ch, lf->ch);
+ Dmsg2(dbglvl, "lex_get_char: %c %d\n", lf->ch, lf->ch);
return lf->ch;
}
-void
-lex_unget_char(LEX *lf)
+void lex_unget_char(LEX *lf)
{
- lf->col_no--;
- if (lf->ch == L_EOL)
- lf->ch = 0;
+ if (lf->ch == L_EOL) {
+ lf->ch = 0; /* End of line, force read of next one */
+ } else {
+ lf->col_no--; /* Backup to re-read char */
+ }
+
}
static void add_str(LEX *lf, int ch)
{
if (lf->str_len >= MAXSTRING-3) {
- Emsg2(M_ABORT, 0, "Token too long, file: %s, line %s\n", lf->fname, lf->line_no);
+ Emsg3(M_ERROR_TERM, 0, _(
+ _("Config token too long, file: %s, line %d, begins at line %d\n")),
+ lf->fname, lf->line_no, lf->begin_line_no);
}
lf->str[lf->str_len++] = ch;
lf->str[lf->str_len] = 0;
/*
* Begin the string
*/
-static void begin_str(LEX *lf, int ch)
+static void begin_str(LEX *lf, int ch)
{
lf->str_len = 0;
lf->str[0] = 0;
- if (ch != 0)
+ if (ch != 0) {
add_str(lf, ch);
+ }
+ lf->begin_line_no = lf->line_no; /* save start string line no */
}
#ifdef DEBUG
-static char *
-lex_state_to_str(int state)
+static const char *lex_state_to_str(int state)
{
switch (state) {
- case lex_none: return "none";
- case lex_comment: return "comment";
- case lex_number: return "number";
- case lex_ip_addr: return "ip_addr";
- case lex_identifier: return "identifier";
- case lex_string: return "string";
- case lex_quoted_string: return "quoted_string";
- default: return "??????";
+ case lex_none: return _("none");
+ case lex_comment: return _("comment");
+ case lex_number: return _("number");
+ case lex_ip_addr: return _("ip_addr");
+ case lex_identifier: return _("identifier");
+ case lex_string: return _("string");
+ case lex_quoted_string: return _("quoted_string");
+ case lex_include: return _("include");
+ case lex_include_quoted_string: return _("include_quoted_string");
+ case lex_utf8_bom: return _("UTF-8 Byte Order Mark");
+ case lex_utf16_le_bom: return _("UTF-16le Byte Order Mark");
+ default: return "??????";
}
}
#endif
* Convert a lex token to a string
* used for debug/error printing.
*/
-char *
-lex_tok_to_str(int token)
+const char *lex_tok_to_str(int token)
{
switch(token) {
- case L_EOF: return "L_EOF";
- case L_EOL: return "L_EOL";
- case T_NONE: return "T_NONE";
- case T_NUMBER: return "T_NUMBER";
- case T_IPADDR: return "T_IPADDR";
- case T_IDENTIFIER: return "T_IDENTIFIER";
- case T_STRING: return "T_STRING";
- case T_QUOTED_STRING: return "T_QUOTED_STRING";
- case T_BOB: return "T_BOB";
- case T_EOB: return "T_EOB";
- case T_EQUALS: return "T_EQUALS";
- case T_ERROR: return "T_ERROR";
- case T_EOF: return "T_EOF";
- case T_COMMA: return "T_COMMA";
- case T_EOL: return "T_EOL";
- default: return "??????";
+ case L_EOF: return "L_EOF";
+ case L_EOL: return "L_EOL";
+ case T_NONE: return "T_NONE";
+ case T_NUMBER: return "T_NUMBER";
+ case T_IPADDR: return "T_IPADDR";
+ case T_IDENTIFIER: return "T_IDENTIFIER";
+ case T_UNQUOTED_STRING: return "T_UNQUOTED_STRING";
+ case T_QUOTED_STRING: return "T_QUOTED_STRING";
+ case T_BOB: return "T_BOB";
+ case T_EOB: return "T_EOB";
+ case T_EQUALS: return "T_EQUALS";
+ case T_ERROR: return "T_ERROR";
+ case T_EOF: return "T_EOF";
+ case T_COMMA: return "T_COMMA";
+ case T_EOL: return "T_EOL";
+ case T_UTF8_BOM: return "T_UTF8_BOM";
+ case T_UTF16_BOM: return "T_UTF16_BOM";
+ default: return "??????";
+ }
+}
+
+static uint32_t scan_pint(LEX *lf, char *str)
+{
+ int64_t val = 0;
+ if (!is_a_number(str)) {
+ scan_err1(lf, _("expected a positive integer number, got: %s"), str);
+ /* NOT REACHED */
+ } else {
+ errno = 0;
+ val = str_to_int64(str);
+ if (errno != 0 || val < 0) {
+ scan_err1(lf, _("expected a positive integer number, got: %s"), str);
+ /* NOT REACHED */
+ }
}
+ return (uint32_t)val;
}
-/*
- *
+static uint64_t scan_pint64(LEX *lf, char *str)
+{
+ uint64_t val = 0;
+ if (!is_a_number(str)) {
+ scan_err1(lf, _("expected a positive integer number, got: %s"), str);
+ /* NOT REACHED */
+ } else {
+ errno = 0;
+ val = str_to_uint64(str);
+ if (errno != 0) {
+ scan_err1(lf, _("expected a positive integer number, got: %s"), str);
+ /* NOT REACHED */
+ }
+ }
+ return val;
+}
+
+/*
+ *
* Get the next token from the input
*
*/
int
-lex_get_token(LEX *lf)
+lex_get_token(LEX *lf, int expect)
{
int ch;
int token = T_NONE;
- int esc_next = FALSE;
+ bool esc_next = false;
+ /* Unicode files, especially on Win32, may begin with a "Byte Order Mark"
+ to indicate which transmission format the file is in. The codepoint for
+ this mark is U+FEFF and is represented as the octets EF-BB-BF in UTF-8
+ and as FF-FE in UTF-16le(little endian) and FE-FF in UTF-16(big endian).
+ We use a distinct state for UTF-8 and UTF-16le, and use bom_bytes_seen
+ to tell which byte we are expecting. */
+ int bom_bytes_seen = 0;
- Dmsg0(290, "enter lex_get_token\n");
+ Dmsg0(dbglvl, "enter lex_get_token\n");
while (token == T_NONE) {
ch = lex_get_char(lf);
switch (lf->state) {
- case lex_none:
- Dmsg2(290, "Lex state lex_none ch=%d,%x\n", ch, ch);
- if (ISSPACE(ch))
- break;
- if (ISALPHA(ch)) {
- if (lf->options & LOPT_NO_IDENT)
- lf->state = lex_string;
- else
- lf->state = lex_identifier;
- begin_str(lf, ch);
- break;
- }
- if (ISDIGIT(ch)) {
- lf->state = lex_number;
- begin_str(lf, ch);
- break;
- }
- Dmsg0(290, "Enter lex_none switch\n");
- switch (ch) {
- case L_EOF:
- token = T_EOF;
- Dmsg0(290, "got L_EOF set token=T_EOF\n");
- break;
- case '#':
- lf->state = lex_comment;
- break;
- case '{':
- token = T_BOB;
- begin_str(lf, ch);
- break;
- case '}':
- token = T_EOB;
- begin_str(lf, ch);
- break;
- case '"':
- lf->state = lex_quoted_string;
- begin_str(lf, 0);
- break;
- case '=':
- token = T_EQUALS;
- begin_str(lf, ch);
- break;
- case ',':
- token = T_COMMA;
- begin_str(lf, ch);
- break;
- case ';':
- token = T_EOL; /* treat ; like EOL */
- break;
- case L_EOL:
- Dmsg0(290, "got L_EOL set token=T_EOL\n");
- token = T_EOL;
- break;
- case '@':
- lf->state = lex_include;
- begin_str(lf, 0);
- break;
- default:
- lf->state = lex_string;
- begin_str(lf, ch);
- break;
- }
- break;
- case lex_comment:
- Dmsg1(290, "Lex state lex_comment ch=%x\n", ch);
- if (ch == L_EOL) {
- lf->state = lex_none;
- token = T_EOL;
- }
- break;
- case lex_number:
- Dmsg2(290, "Lex state lex_number ch=%x %c\n", ch, ch);
- /* Might want to allow trailing specifications here */
- if (ISDIGIT(ch)) {
- add_str(lf, ch);
- break;
- }
-
- /* A valid number can be terminated by the following */
- if (ISSPACE(ch) || ch == L_EOL || ch == ',' || ch == ';') {
- token = T_NUMBER;
- lf->state = lex_none;
- } else {
- lf->state = lex_string;
- }
- lex_unget_char(lf);
- break;
- case lex_ip_addr:
- Dmsg1(290, "Lex state lex_ip_addr ch=%x\n", ch);
- break;
- case lex_string:
- Dmsg1(290, "Lex state lex_string ch=%x\n", ch);
- if (ch == '\n' || ch == L_EOL || ch == '=' || ch == '}' || ch == '{' ||
- ch == ';' || ch == ',' || ch == '#' || (ISSPACE(ch)) ) {
- lex_unget_char(lf);
- token = T_STRING;
- lf->state = lex_none;
- break;
- }
- add_str(lf, ch);
- break;
- case lex_identifier:
- Dmsg2(290, "Lex state lex_identifier ch=%x %c\n", ch, ch);
- if (ISALPHA(ch)) {
- add_str(lf, ch);
- break;
- } else if (ISSPACE(ch)) {
- break;
- } else if (ch == '\n' || ch == L_EOL || ch == '=' || ch == '}' || ch == '{' ||
- ch == ';' || ch == ',' || ch == '"' || ch == '#') {
- lex_unget_char(lf);
- token = T_IDENTIFIER;
- lf->state = lex_none;
- break;
- } else if (ch == L_EOF) {
- token = T_ERROR;
- lf->state = lex_none;
- begin_str(lf, ch);
- break;
- }
- /* Some non-alpha character => string */
- lf->state = lex_string;
- add_str(lf, ch);
- break;
- case lex_quoted_string:
- Dmsg2(290, "Lex state lex_quoted_string ch=%x %c\n", ch, ch);
- if (ch == L_EOL) {
- esc_next = FALSE;
- break;
- }
- if (esc_next) {
- add_str(lf, ch);
- esc_next = FALSE;
- break;
- }
- if (ch == '\\') {
- esc_next = TRUE;
- break;
- }
- if (ch == '"') {
- token = T_QUOTED_STRING;
- lf->state = lex_none;
- break;
- }
- add_str(lf, ch);
- break;
- case lex_include: /* scanning a filename */
- if (ISSPACE(ch) || ch == '\n' || ch == L_EOL || ch == '}' || ch == '{' ||
- ch == ';' || ch == ',' || ch == '"' || ch == '#') {
- lf->state = lex_none;
- lf = lex_open_file(lf, lf->str);
- break;
- }
- add_str(lf, ch);
- break;
+ case lex_none:
+ Dmsg2(dbglvl, "Lex state lex_none ch=%d,%x\n", ch, ch);
+ if (B_ISSPACE(ch))
+ break;
+ if (B_ISALPHA(ch)) {
+ if (lf->options & LOPT_NO_IDENT || lf->options & LOPT_STRING) {
+ lf->state = lex_string;
+ } else {
+ lf->state = lex_identifier;
+ }
+ begin_str(lf, ch);
+ break;
+ }
+ if (B_ISDIGIT(ch)) {
+ if (lf->options & LOPT_STRING) {
+ lf->state = lex_string;
+ } else {
+ lf->state = lex_number;
+ }
+ begin_str(lf, ch);
+ break;
+ }
+ Dmsg0(dbglvl, "Enter lex_none switch\n");
+ switch (ch) {
+ case L_EOF:
+ token = T_EOF;
+ Dmsg0(dbglvl, "got L_EOF set token=T_EOF\n");
+ break;
+ case '#':
+ lf->state = lex_comment;
+ break;
+ case '{':
+ token = T_BOB;
+ begin_str(lf, ch);
+ break;
+ case '}':
+ token = T_EOB;
+ begin_str(lf, ch);
+ break;
+ case '"':
+ lf->state = lex_quoted_string;
+ begin_str(lf, 0);
+ break;
+ case '=':
+ token = T_EQUALS;
+ begin_str(lf, ch);
+ break;
+ case ',':
+ token = T_COMMA;
+ begin_str(lf, ch);
+ break;
+ case ';':
+ if (expect != T_SKIP_EOL) {
+ token = T_EOL; /* treat ; like EOL */
+ }
+ break;
+ case L_EOL:
+ Dmsg0(dbglvl, "got L_EOL set token=T_EOL\n");
+ if (expect != T_SKIP_EOL) {
+ token = T_EOL;
+ }
+ break;
+ case '@':
+ /* In NO_EXTERN mode, @ is part of a string */
+ if (lf->options & LOPT_NO_EXTERN) {
+ lf->state = lex_string;
+ begin_str(lf, ch);
+ } else {
+ lf->state = lex_include;
+ begin_str(lf, 0);
+ }
+ break;
+ case 0xEF: /* probably a UTF-8 BOM */
+ case 0xFF: /* probably a UTF-16le BOM */
+ case 0xFE: /* probably a UTF-16be BOM (error)*/
+ if (lf->line_no != 1 || lf->col_no != 1)
+ {
+ lf->state = lex_string;
+ begin_str(lf, ch);
+ } else {
+ bom_bytes_seen = 1;
+ if (ch == 0xEF) {
+ lf->state = lex_utf8_bom;
+ } else if (ch == 0xFF) {
+ lf->state = lex_utf16_le_bom;
+ } else {
+ scan_err0(lf, _("This config file appears to be in an "
+ "unsupported Unicode format (UTF-16be). Please resave as UTF-8\n"));
+ return T_ERROR;
+ }
+ }
+ break;
+ default:
+ lf->state = lex_string;
+ begin_str(lf, ch);
+ break;
+ }
+ break;
+ case lex_comment:
+ Dmsg1(dbglvl, "Lex state lex_comment ch=%x\n", ch);
+ if (ch == L_EOL) {
+ lf->state = lex_none;
+ if (expect != T_SKIP_EOL) {
+ token = T_EOL;
+ }
+ } else if (ch == L_EOF) {
+ token = T_ERROR;
+ }
+ break;
+ case lex_number:
+ Dmsg2(dbglvl, "Lex state lex_number ch=%x %c\n", ch, ch);
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ /* Might want to allow trailing specifications here */
+ if (B_ISDIGIT(ch)) {
+ add_str(lf, ch);
+ break;
+ }
+
+ /* A valid number can be terminated by the following */
+ if (B_ISSPACE(ch) || ch == L_EOL || ch == ',' || ch == ';') {
+ token = T_NUMBER;
+ lf->state = lex_none;
+ } else {
+ lf->state = lex_string;
+ }
+ lex_unget_char(lf);
+ break;
+ case lex_ip_addr:
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ Dmsg1(dbglvl, "Lex state lex_ip_addr ch=%x\n", ch);
+ break;
+ case lex_string:
+ Dmsg1(dbglvl, "Lex state lex_string ch=%x\n", ch);
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ if (ch == '\n' || ch == L_EOL || ch == '=' || ch == '}' || ch == '{' ||
+ ch == '\r' || ch == ';' || ch == ',' || ch == '#' || (B_ISSPACE(ch)) ) {
+ lex_unget_char(lf);
+ token = T_UNQUOTED_STRING;
+ lf->state = lex_none;
+ break;
+ }
+ add_str(lf, ch);
+ break;
+ case lex_identifier:
+ Dmsg2(dbglvl, "Lex state lex_identifier ch=%x %c\n", ch, ch);
+ if (B_ISALPHA(ch)) {
+ add_str(lf, ch);
+ break;
+ } else if (B_ISSPACE(ch)) {
+ break;
+ } else if (ch == '\n' || ch == L_EOL || ch == '=' || ch == '}' || ch == '{' ||
+ ch == '\r' || ch == ';' || ch == ',' || ch == '"' || ch == '#') {
+ lex_unget_char(lf);
+ token = T_IDENTIFIER;
+ lf->state = lex_none;
+ break;
+ } else if (ch == L_EOF) {
+ token = T_ERROR;
+ lf->state = lex_none;
+ begin_str(lf, ch);
+ break;
+ }
+ /* Some non-alpha character => string */
+ lf->state = lex_string;
+ add_str(lf, ch);
+ break;
+ case lex_quoted_string:
+ Dmsg2(dbglvl, "Lex state lex_quoted_string ch=%x %c\n", ch, ch);
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ if (ch == L_EOL) {
+ esc_next = false;
+ break;
+ }
+ if (esc_next) {
+ add_str(lf, ch);
+ esc_next = false;
+ break;
+ }
+ if (ch == '\\') {
+ esc_next = true;
+ break;
+ }
+ if (ch == '"') {
+ token = T_QUOTED_STRING;
+ lf->state = lex_none;
+ break;
+ }
+ add_str(lf, ch);
+ break;
+ case lex_include_quoted_string:
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ if (esc_next) {
+ add_str(lf, ch);
+ esc_next = false;
+ break;
+ }
+ if (ch == '\\') {
+ esc_next = true;
+ break;
+ }
+ if (ch == '"') {
+ /* Keep the original LEX so we can print an error if the included file can't be opened. */
+ LEX* lfori = lf;
+ /* Skip the double quote when restarting parsing */
+ lex_get_char(lf);
+
+ lf->state = lex_none;
+ lf = lex_open_file(lf, lf->str, lf->scan_error);
+ if (lf == NULL) {
+ berrno be;
+ scan_err2(lfori, _("Cannot open included config file %s: %s\n"),
+ lfori->str, be.bstrerror());
+ return T_ERROR;
+ }
+ break;
+ }
+ add_str(lf, ch);
+ break;
+ case lex_include: /* scanning a filename */
+ if (ch == L_EOF) {
+ token = T_ERROR;
+ break;
+ }
+ if (ch == '"') {
+ lf->state = lex_include_quoted_string;
+ break;
+ }
+
+
+ if (B_ISSPACE(ch) || ch == '\n' || ch == L_EOL || ch == '}' || ch == '{' ||
+ ch == ';' || ch == ',' || ch == '"' || ch == '#') {
+ /* Keep the original LEX so we can print an error if the included file can't be opened. */
+ LEX* lfori = lf;
+
+ lf->state = lex_none;
+ lf = lex_open_file(lf, lf->str, lf->scan_error);
+ if (lf == NULL) {
+ berrno be;
+ scan_err2(lfori, _("Cannot open included config file %s: %s\n"),
+ lfori->str, be.bstrerror());
+ return T_ERROR;
+ }
+ break;
+ }
+ add_str(lf, ch);
+ break;
+ case lex_utf8_bom:
+ /* we only end up in this state if we have read an 0xEF
+ as the first byte of the file, indicating we are probably
+ reading a UTF-8 file */
+ if (ch == 0xBB && bom_bytes_seen == 1) {
+ bom_bytes_seen++;
+ } else if (ch == 0xBF && bom_bytes_seen == 2) {
+ token = T_UTF8_BOM;
+ lf->state = lex_none;
+ } else {
+ token = T_ERROR;
+ }
+ break;
+ case lex_utf16_le_bom:
+ /* we only end up in this state if we have read an 0xFF
+ as the first byte of the file -- indicating that we are
+ probably dealing with an Intel based (little endian) UTF-16 file*/
+ if (ch == 0xFE) {
+ token = T_UTF16_BOM;
+ lf->state = lex_none;
+ } else {
+ token = T_ERROR;
+ }
+ break;
}
- Dmsg4(290, "ch=%d state=%s token=%s %c\n", ch, lex_state_to_str(lf->state),
- lex_tok_to_str(token), ch);
+ Dmsg4(dbglvl, "ch=%d state=%s token=%s %c\n", ch, lex_state_to_str(lf->state),
+ lex_tok_to_str(token), ch);
}
- Dmsg2(290, "lex returning: line %d token: %s\n", lf->line_no, lex_tok_to_str(token));
+ Dmsg2(dbglvl, "lex returning: line %d token: %s\n", lf->line_no, lex_tok_to_str(token));
lf->token = token;
+
+ /*
+ * Here is where we check to see if the user has set certain
+ * expectations (e.g. 32 bit integer). If so, we do type checking
+ * and possible additional scanning (e.g. for range).
+ */
+ switch (expect) {
+ case T_PINT32:
+ lf->pint32_val = scan_pint(lf, lf->str);
+ lf->pint32_val2 = lf->pint32_val;
+ token = T_PINT32;
+ break;
+
+ case T_PINT32_RANGE:
+ if (token == T_NUMBER) {
+ lf->pint32_val = scan_pint(lf, lf->str);
+ lf->pint32_val2 = lf->pint32_val;
+ token = T_PINT32;
+ } else {
+ char *p = strchr(lf->str, '-');
+ if (!p) {
+ scan_err2(lf, _("expected an integer or a range, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ break;
+ }
+ *p++ = 0; /* terminate first half of range */
+ lf->pint32_val = scan_pint(lf, lf->str);
+ lf->pint32_val2 = scan_pint(lf, p);
+ token = T_PINT32_RANGE;
+ }
+ break;
+
+ case T_INT32:
+ if (token != T_NUMBER || !is_a_number(lf->str)) {
+ scan_err2(lf, _("expected an integer number, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ break;
+ }
+ errno = 0;
+ lf->int32_val = (int32_t)str_to_int64(lf->str);
+ if (errno != 0) {
+ scan_err2(lf, _("expected an integer number, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ } else {
+ token = T_INT32;
+ }
+ break;
+
+ case T_INT64:
+ Dmsg2(dbglvl, "int64=:%s: %f\n", lf->str, strtod(lf->str, NULL));
+ if (token != T_NUMBER || !is_a_number(lf->str)) {
+ scan_err2(lf, _("expected an integer number, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ break;
+ }
+ errno = 0;
+ lf->int64_val = str_to_int64(lf->str);
+ if (errno != 0) {
+ scan_err2(lf, _("expected an integer number, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ } else {
+ token = T_INT64;
+ }
+ break;
+
+ case T_PINT64_RANGE:
+ if (token == T_NUMBER) {
+ lf->pint64_val = scan_pint64(lf, lf->str);
+ lf->pint64_val2 = lf->pint64_val;
+ token = T_PINT64;
+ } else {
+ char *p = strchr(lf->str, '-');
+ if (!p) {
+ scan_err2(lf, _("expected an integer or a range, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ break;
+ }
+ *p++ = 0; /* terminate first half of range */
+ lf->pint64_val = scan_pint64(lf, lf->str);
+ lf->pint64_val2 = scan_pint64(lf, p);
+ token = T_PINT64_RANGE;
+ }
+ break;
+
+ case T_NAME:
+ if (token != T_IDENTIFIER && token != T_UNQUOTED_STRING && token != T_QUOTED_STRING) {
+ scan_err2(lf, _("expected a name, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ } else if (lf->str_len > MAX_RES_NAME_LENGTH) {
+ scan_err3(lf, _("name %s length %d too long, max is %d\n"), lf->str,
+ lf->str_len, MAX_RES_NAME_LENGTH);
+ token = T_ERROR;
+ }
+ break;
+
+ case T_STRING:
+ if (token != T_IDENTIFIER && token != T_UNQUOTED_STRING && token != T_QUOTED_STRING) {
+ scan_err2(lf, _("expected a string, got %s: %s"),
+ lex_tok_to_str(token), lf->str);
+ token = T_ERROR;
+ } else {
+ token = T_STRING;
+ }
+ break;
+
+
+ default:
+ break; /* no expectation given */
+ }
+ lf->token = token; /* set possible new token */
return token;
}
projects / bacula / bacula / blobdiff