mirror of
https://github.com/omar-polo/gmid.git
synced 2024-09-06 11:29:19 +02:00
1349 lines
26 KiB
Plaintext
1349 lines
26 KiB
Plaintext
%{
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/*
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* Copyright (c) 2021, 2022, 2023 Omar Polo <op@omarpolo.com>
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* Copyright (c) 2018 Florian Obser <florian@openbsd.org>
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* Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
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* Copyright (c) 2004 Ryan McBride <mcbride@openbsd.org>
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* Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
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* Copyright (c) 2001 Markus Friedl. All rights reserved.
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* Copyright (c) 2001 Daniel Hartmeier. All rights reserved.
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* Copyright (c) 2001 Theo de Raadt. All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "gmid.h"
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#include <ctype.h>
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#include <errno.h>
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#include <netdb.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "log.h"
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struct conf *conf;
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static const char *default_host = "*";
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static uint16_t default_port = 1965;
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TAILQ_HEAD(files, file) files = TAILQ_HEAD_INITIALIZER(files);
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static struct file {
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TAILQ_ENTRY(file) entry;
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FILE *stream;
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char *name;
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size_t ungetpos;
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size_t ungetsize;
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u_char *ungetbuf;
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int eof_reached;
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int lineno;
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int errors;
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} *file, *topfile;
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|
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struct file *pushfile(const char *, int);
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int popfile(void);
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int yyparse(void);
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int yylex(void);
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void yyerror(const char *, ...)
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__attribute__((__format__ (printf, 1, 2)))
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__attribute__((__nonnull__ (1)));
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void yywarn(const char *, ...)
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__attribute__((__format__ (printf, 1, 2)))
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__attribute__((__nonnull__ (1)));
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int kw_cmp(const void *, const void *);
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int lookup(char *);
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int igetc(void);
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int lgetc(int);
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void lungetc(int);
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int findeol(void);
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|
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/*
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* #define YYDEBUG 1
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* int yydebug = 1;
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*/
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TAILQ_HEAD(symhead, sym) symhead = TAILQ_HEAD_INITIALIZER(symhead);
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struct sym {
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TAILQ_ENTRY(sym) entry;
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int used;
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int persist;
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char *name;
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char *val;
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};
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int symset(const char *, const char *, int);
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char *symget(const char *);
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|
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char *ensure_absolute_path(char*);
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int check_block_code(int);
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char *check_block_fmt(char*);
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int check_strip_no(int);
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int check_port_num(int);
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|
int check_prefork_num(int);
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void advance_loc(void);
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void advance_proxy(void);
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void parsehp(char *, char **, const char **, const char *);
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int fastcgi_conf(const char *, const char *);
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void add_param(char *, char *);
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int getservice(const char *);
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void listen_on(const char *, const char *);
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static struct vhost *host;
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static struct location *loc;
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static struct proxy *proxy;
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static char *current_media;
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static int errors;
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typedef struct {
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union {
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char *string;
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int number;
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} v;
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int lineno;
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} YYSTYPE;
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#define YYSTYPE YYSTYPE
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%}
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/* for bison: */
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/* %define parse.error verbose */
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%token ACCESS ALIAS AUTO
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%token BLOCK
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%token CA CERT CHROOT CLIENT COMBINED COMMON CONDENSED
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%token DEFAULT
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%token FASTCGI FOR_HOST
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%token INCLUDE INDEX IPV6
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%token KEY
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%token LANG LEGACY LISTEN LOCATION LOG
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%token OCSP OFF ON
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%token PARAM PORT PREFORK PROTO PROTOCOLS PROXY
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%token RELAY_TO REQUIRE RETURN ROOT
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%token SERVER SNI SOCKET STRIP STYLE SYSLOG
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%token TCP TOEXT TYPE TYPES
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%token USE_TLS USER
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%token VERIFYNAME
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%token ERROR
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%token <v.string> STRING
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%token <v.number> NUM
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%type <v.number> bool proxy_port
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%type <v.string> string numberstring listen_addr
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%%
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conf : /* empty */
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| conf include '\n'
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| conf '\n'
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| conf varset '\n'
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| conf option '\n'
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| conf vhost '\n'
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| conf types '\n'
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| conf error '\n' { file->errors++; }
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;
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include : INCLUDE STRING {
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struct file *nfile;
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if ((nfile = pushfile($2, 0)) == NULL) {
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yyerror("failed to include file %s", $2);
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free($2);
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YYERROR;
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}
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free($2);
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file = nfile;
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lungetc('\n');
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}
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;
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bool : ON { $$ = 1; }
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| OFF { $$ = 0; }
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;
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string : string STRING {
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if (asprintf(&$$, "%s%s", $1, $2) == -1) {
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free($1);
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free($2);
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yyerror("string: asprintf: %s", strerror(errno));
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YYERROR;
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}
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free($1);
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free($2);
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}
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| STRING
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;
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numberstring : NUM {
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char *s;
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if (asprintf(&s, "%d", $1) == -1) {
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yyerror("asprintf: number");
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YYERROR;
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}
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$$ = s;
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}
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| STRING
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;
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varset : STRING '=' string {
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char *s = $1;
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while (*s++) {
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if (isspace((unsigned char)*s)) {
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yyerror("macro name cannot contain "
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"whitespaces");
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free($1);
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free($3);
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YYERROR;
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}
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}
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symset($1, $3, 0);
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free($1);
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free($3);
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}
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;
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option : CHROOT string {
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if (strlcpy(conf->chroot, $2, sizeof(conf->chroot)) >=
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sizeof(conf->chroot))
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yyerror("chroot path too long");
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free($2);
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}
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| IPV6 bool {
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yywarn("option `ipv6' is deprecated,"
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" please use `listen on'");
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if ($2)
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default_host = "*";
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else
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default_host = "0.0.0.0";
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}
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| log
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| PORT NUM {
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yywarn("option `port' is deprecated,"
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" please use `listen on'");
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default_port = $2;
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}
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| PREFORK NUM { conf->prefork = check_prefork_num($2); }
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| PROTOCOLS string {
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if (tls_config_parse_protocols(&conf->protos, $2) == -1)
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yyerror("invalid protocols string \"%s\"", $2);
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free($2);
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}
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| USER string {
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if (strlcpy(conf->user, $2, sizeof(conf->user)) >=
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sizeof(conf->user))
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yyerror("user name too long");
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free($2);
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}
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;
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log : LOG '{' optnl logopts '}'
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| LOG logopt
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;
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logopts : /* empty */
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| logopts logopt optnl
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;
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logopt : ACCESS string {
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free(conf->log_access);
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conf->log_access = $2;
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}
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| STYLE COMMON {
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conf->log_format = LOG_FORMAT_COMMON;
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}
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| STYLE COMBINED {
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conf->log_format = LOG_FORMAT_COMBINED;
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}
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| STYLE CONDENSED {
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conf->log_format = LOG_FORMAT_CONDENSED;
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}
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| STYLE LEGACY {
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conf->log_format = LOG_FORMAT_LEGACY;
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}
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| SYSLOG OFF {
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conf->log_syslog = 0;
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}
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| SYSLOG {
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conf->log_syslog = 1;
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}
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;
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vhost : SERVER string {
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host = new_vhost();
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TAILQ_INSERT_HEAD(&conf->hosts, host, vhosts);
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loc = new_location();
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TAILQ_INSERT_HEAD(&host->locations, loc, locations);
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TAILQ_INIT(&host->proxies);
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(void) strlcpy(loc->match, "*", sizeof(loc->match));
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(void) strlcpy(host->domain, $2, sizeof(host->domain));
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if (strstr($2, "xn--") != NULL) {
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yywarn("\"%s\" looks like punycode: you "
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"should use the decoded hostname", $2);
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}
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free($2);
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} '{' optnl servbody '}' {
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if (host->cert_path == NULL ||
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host->key_path == NULL)
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yyerror("invalid vhost definition: %s",
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host->domain);
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if (TAILQ_EMPTY(&host->addrs)) {
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char portno[32];
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int r;
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r = snprintf(portno, sizeof(portno), "%d",
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default_port);
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if (r < 0 || (size_t)r >= sizeof(portno))
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fatal("snprintf");
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yywarn("missing `listen on' in server %s,"
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" assuming %s port %d", $2, default_host,
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default_port);
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listen_on(default_host, portno);
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}
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}
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| error '}' { yyerror("bad server directive"); }
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;
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servbody : /* empty */
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| servbody servopt optnl
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| servbody location optnl
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| servbody proxy optnl
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;
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listen_addr : '*' { $$ = NULL; }
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| STRING
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;
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servopt : ALIAS string {
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struct alist *a;
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a = xcalloc(1, sizeof(*a));
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(void) strlcpy(a->alias, $2, sizeof(a->alias));
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free($2);
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TAILQ_INSERT_TAIL(&host->aliases, a, aliases);
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}
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| CERT string {
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ensure_absolute_path($2);
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free(host->cert_path);
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host->cert_path = $2;
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}
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| KEY string {
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ensure_absolute_path($2);
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free(host->key_path);
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host->key_path = $2;
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}
|
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| OCSP string {
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ensure_absolute_path($2);
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free(host->ocsp_path);
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host->ocsp_path = $2;
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}
|
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| PARAM string '=' string {
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yywarn("the top-level `param' directive is deprecated."
|
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" Please use `fastcgi { param ... }`");
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add_param($2, $4);
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}
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| LISTEN ON listen_addr {
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listen_on($3, "1965");
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}
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| LISTEN ON listen_addr PORT STRING {
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listen_on($3, $5);
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free($3);
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free($5);
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}
|
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| LISTEN ON listen_addr PORT NUM {
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char portno[32];
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int r;
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r = snprintf(portno, sizeof(portno), "%d", $5);
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if (r < 0 || (size_t)r >= sizeof(portno))
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fatal("snprintf");
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listen_on($3, portno);
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free($3);
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}
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| locopt
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;
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proxy : PROXY { advance_proxy(); }
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proxy_matches '{' optnl proxy_opts '}' {
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if (*proxy->host == '\0')
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yyerror("invalid proxy block: missing `relay-to' option");
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|
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if ((proxy->cert_path == NULL && proxy->key_path != NULL) ||
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(proxy->cert_path != NULL && proxy->key_path == NULL))
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yyerror("invalid proxy block: missing cert or key");
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}
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;
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proxy_matches : /* empty */
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| proxy_matches proxy_match
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;
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proxy_port : /* empty */ { $$ = 1965; }
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| PORT STRING {
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if (($$ = getservice($2)) == -1)
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yyerror("invalid port number %s", $2);
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free($2);
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}
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| PORT NUM { $$ = $2; }
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;
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proxy_match : PROTO string {
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(void) strlcpy(proxy->match_proto, $2, sizeof(proxy->match_proto));
|
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free($2);
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}
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| FOR_HOST string proxy_port {
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(void) strlcpy(proxy->match_host, $2, sizeof(proxy->match_host));
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(void) snprintf(proxy->match_port, sizeof(proxy->match_port),
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"%d", $3);
|
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free($2);
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}
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;
|
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|
|
proxy_opts : /* empty */
|
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| proxy_opts proxy_opt optnl
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;
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proxy_opt : CERT string {
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free(proxy->cert);
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ensure_absolute_path($2);
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proxy->cert_path = $2;
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}
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| KEY string {
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free(proxy->key);
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ensure_absolute_path($2);
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proxy->key_path = $2;
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}
|
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| PROTOCOLS string {
|
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if (tls_config_parse_protocols(&proxy->protocols, $2) == -1)
|
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yyerror("invalid protocols string \"%s\"", $2);
|
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free($2);
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}
|
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| RELAY_TO string proxy_port {
|
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(void) strlcpy(proxy->host, $2, sizeof(proxy->host));
|
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(void) snprintf(proxy->port, sizeof(proxy->port),
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"%d", $3);
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free($2);
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}
|
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| REQUIRE CLIENT CA string {
|
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ensure_absolute_path($4);
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proxy->reqca_path = $4;
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}
|
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| SNI string {
|
|
(void) strlcpy(proxy->sni, $2, sizeof(proxy->sni));
|
|
free($2);
|
|
}
|
|
| USE_TLS bool {
|
|
proxy->notls = !$2;
|
|
}
|
|
| VERIFYNAME bool {
|
|
proxy->noverifyname = !$2;
|
|
}
|
|
;
|
|
|
|
location : LOCATION { advance_loc(); } string '{' optnl locopts '}' {
|
|
/* drop the starting '/' if any */
|
|
if (*$3 == '/')
|
|
memmove($3, $3+1, strlen($3));
|
|
(void) strlcpy(loc->match, $3, sizeof(loc->match));
|
|
free($3);
|
|
}
|
|
| error '}'
|
|
;
|
|
|
|
locopts : /* empty */
|
|
| locopts locopt optnl
|
|
;
|
|
|
|
locopt : AUTO INDEX bool { loc->auto_index = $3 ? 1 : -1; }
|
|
| BLOCK RETURN NUM string {
|
|
check_block_fmt($4);
|
|
(void) strlcpy(loc->block_fmt, $4, sizeof(loc->block_fmt));
|
|
loc->block_code = check_block_code($3);
|
|
free($4);
|
|
}
|
|
| BLOCK RETURN NUM {
|
|
(void) strlcpy(loc->block_fmt, "temporary failure",
|
|
sizeof(loc->block_fmt));
|
|
loc->block_code = check_block_code($3);
|
|
if ($3 >= 30 && $3 < 40)
|
|
yyerror("missing `meta' for block return %d", $3);
|
|
}
|
|
| BLOCK {
|
|
(void) strlcpy(loc->block_fmt, "temporary failure",
|
|
sizeof(loc->block_fmt));
|
|
loc->block_code = 40;
|
|
}
|
|
| DEFAULT TYPE string {
|
|
(void) strlcpy(loc->default_mime, $3,
|
|
sizeof(loc->default_mime));
|
|
free($3);
|
|
}
|
|
| fastcgi
|
|
| INDEX string {
|
|
(void) strlcpy(loc->index, $2, sizeof(loc->index));
|
|
free($2);
|
|
}
|
|
| LANG string {
|
|
(void) strlcpy(loc->lang, $2,
|
|
sizeof(loc->lang));
|
|
free($2);
|
|
}
|
|
| LOG bool { loc->disable_log = !$2; }
|
|
| REQUIRE CLIENT CA string {
|
|
ensure_absolute_path($4);
|
|
loc->reqca_path = $4;
|
|
}
|
|
| ROOT string {
|
|
(void) strlcpy(loc->dir, $2, sizeof(loc->dir));
|
|
free($2);
|
|
}
|
|
| STRIP NUM { loc->strip = check_strip_no($2); }
|
|
;
|
|
|
|
fastcgi : FASTCGI '{' optnl fastcgiopts '}'
|
|
| FASTCGI fastcgiopt
|
|
| FASTCGI OFF {
|
|
loc->fcgi = -1;
|
|
loc->nofcgi = 1;
|
|
}
|
|
| FASTCGI string {
|
|
yywarn("`fastcgi path' is deprecated. "
|
|
"Please use `fastcgi socket path' instead.");
|
|
loc->fcgi = fastcgi_conf($2, NULL);
|
|
free($2);
|
|
}
|
|
;
|
|
|
|
fastcgiopts : /* empty */
|
|
| fastcgiopts fastcgiopt optnl
|
|
;
|
|
|
|
fastcgiopt : PARAM string '=' string {
|
|
add_param($2, $4);
|
|
}
|
|
| SOCKET string {
|
|
loc->fcgi = fastcgi_conf($2, NULL);
|
|
free($2);
|
|
}
|
|
| SOCKET TCP string PORT NUM {
|
|
char *c;
|
|
|
|
if (asprintf(&c, "%d", $5) == -1)
|
|
fatal("asprintf");
|
|
loc->fcgi = fastcgi_conf($3, c);
|
|
free($3);
|
|
free(c);
|
|
}
|
|
| SOCKET TCP string {
|
|
loc->fcgi = fastcgi_conf($3, "9000");
|
|
}
|
|
| SOCKET TCP string PORT string {
|
|
loc->fcgi = fastcgi_conf($3, $5);
|
|
free($3);
|
|
free($5);
|
|
}
|
|
;
|
|
|
|
types : TYPES '{' optnl mediaopts_l '}' ;
|
|
|
|
mediaopts_l : mediaopts_l mediaoptsl nl
|
|
| mediaoptsl nl
|
|
;
|
|
|
|
mediaoptsl : STRING {
|
|
free(current_media);
|
|
current_media = $1;
|
|
} medianames_l optsemicolon
|
|
| include
|
|
;
|
|
|
|
medianames_l : medianames_l medianamesl
|
|
| medianamesl
|
|
;
|
|
|
|
medianamesl : numberstring {
|
|
if (add_mime(&conf->mime, current_media, $1) == -1)
|
|
fatal("add_mime");
|
|
free($1);
|
|
}
|
|
;
|
|
|
|
nl : '\n' optnl
|
|
;
|
|
|
|
optnl : '\n' optnl /* zero or more newlines */
|
|
| ';' optnl /* semicolons too */
|
|
| /*empty*/
|
|
;
|
|
|
|
optsemicolon : ';'
|
|
|
|
|
;
|
|
|
|
%%
|
|
|
|
static const struct keyword {
|
|
const char *word;
|
|
int token;
|
|
} keywords[] = {
|
|
/* these MUST be sorted */
|
|
{"access", ACCESS},
|
|
{"alias", ALIAS},
|
|
{"auto", AUTO},
|
|
{"block", BLOCK},
|
|
{"ca", CA},
|
|
{"cert", CERT},
|
|
{"chroot", CHROOT},
|
|
{"client", CLIENT},
|
|
{"combined", COMBINED},
|
|
{"common", COMMON},
|
|
{"condensed", CONDENSED},
|
|
{"default", DEFAULT},
|
|
{"fastcgi", FASTCGI},
|
|
{"for-host", FOR_HOST},
|
|
{"include", INCLUDE},
|
|
{"index", INDEX},
|
|
{"ipv6", IPV6},
|
|
{"key", KEY},
|
|
{"lang", LANG},
|
|
{"legacy", LEGACY},
|
|
{"listen", LISTEN},
|
|
{"location", LOCATION},
|
|
{"log", LOG},
|
|
{"ocsp", OCSP},
|
|
{"off", OFF},
|
|
{"on", ON},
|
|
{"param", PARAM},
|
|
{"port", PORT},
|
|
{"prefork", PREFORK},
|
|
{"proto", PROTO},
|
|
{"protocols", PROTOCOLS},
|
|
{"proxy", PROXY},
|
|
{"relay-to", RELAY_TO},
|
|
{"require", REQUIRE},
|
|
{"return", RETURN},
|
|
{"root", ROOT},
|
|
{"server", SERVER},
|
|
{"sni", SNI},
|
|
{"socket", SOCKET},
|
|
{"strip", STRIP},
|
|
{"style", STYLE},
|
|
{"syslog", SYSLOG},
|
|
{"tcp", TCP},
|
|
{"to-ext", TOEXT},
|
|
{"type", TYPE},
|
|
{"types", TYPES},
|
|
{"use-tls", USE_TLS},
|
|
{"user", USER},
|
|
{"verifyname", VERIFYNAME},
|
|
};
|
|
|
|
void
|
|
yyerror(const char *msg, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
file->errors++;
|
|
|
|
va_start(ap, msg);
|
|
fprintf(stderr, "%s:%d error: ", config_path, yylval.lineno);
|
|
vfprintf(stderr, msg, ap);
|
|
fprintf(stderr, "\n");
|
|
va_end(ap);
|
|
}
|
|
|
|
void
|
|
yywarn(const char *msg, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, msg);
|
|
fprintf(stderr, "%s:%d warning: ", config_path, yylval.lineno);
|
|
vfprintf(stderr, msg, ap);
|
|
fprintf(stderr, "\n");
|
|
va_end(ap);
|
|
}
|
|
|
|
int
|
|
kw_cmp(const void *k, const void *e)
|
|
{
|
|
return strcmp(k, ((struct keyword *)e)->word);
|
|
}
|
|
|
|
int
|
|
lookup(char *s)
|
|
{
|
|
const struct keyword *p;
|
|
|
|
p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
|
|
sizeof(keywords[0]), kw_cmp);
|
|
|
|
if (p)
|
|
return p->token;
|
|
else
|
|
return STRING;
|
|
}
|
|
|
|
#define START_EXPAND 1
|
|
#define DONE_EXPAND 2
|
|
|
|
static int expanding;
|
|
|
|
int
|
|
igetc(void)
|
|
{
|
|
int c;
|
|
|
|
while (1) {
|
|
if (file->ungetpos > 0)
|
|
c = file->ungetbuf[--file->ungetpos];
|
|
else
|
|
c = getc(file->stream);
|
|
|
|
if (c == START_EXPAND)
|
|
expanding = 1;
|
|
else if (c == DONE_EXPAND)
|
|
expanding = 0;
|
|
else
|
|
break;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
int
|
|
lgetc(int quotec)
|
|
{
|
|
int c, next;
|
|
|
|
if (quotec) {
|
|
if ((c = igetc()) == EOF) {
|
|
yyerror("reached end of file while parsing "
|
|
"quoted string");
|
|
if (file == topfile || popfile() == EOF)
|
|
return EOF;
|
|
return quotec;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
while ((c = igetc()) == '\\') {
|
|
next = igetc();
|
|
if (next != '\n') {
|
|
c = next;
|
|
break;
|
|
}
|
|
yylval.lineno = file->lineno;
|
|
file->lineno++;
|
|
}
|
|
|
|
if (c == EOF) {
|
|
/*
|
|
* Fake EOL when hit EOF for the first time. This gets line
|
|
* count right if last line in included file is syntactically
|
|
* invalid and has no newline.
|
|
*/
|
|
if (file->eof_reached == 0) {
|
|
file->eof_reached = 1;
|
|
return '\n';
|
|
}
|
|
while (c == EOF) {
|
|
if (file == topfile || popfile() == EOF)
|
|
return EOF;
|
|
c = igetc();
|
|
}
|
|
}
|
|
return c;
|
|
}
|
|
|
|
void
|
|
lungetc(int c)
|
|
{
|
|
if (c == EOF)
|
|
return;
|
|
|
|
if (file->ungetpos >= file->ungetsize) {
|
|
void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
|
|
if (p == NULL)
|
|
fatal("lungetc");
|
|
file->ungetbuf = p;
|
|
file->ungetsize *= 2;
|
|
}
|
|
file->ungetbuf[file->ungetpos++] = c;
|
|
}
|
|
|
|
int
|
|
findeol(void)
|
|
{
|
|
int c;
|
|
|
|
/* Skip to either EOF or the first real EOL. */
|
|
while (1) {
|
|
c = lgetc(0);
|
|
if (c == '\n') {
|
|
file->lineno++;
|
|
break;
|
|
}
|
|
if (c == EOF)
|
|
break;
|
|
}
|
|
return ERROR;
|
|
}
|
|
|
|
int
|
|
yylex(void)
|
|
{
|
|
char buf[8096];
|
|
char *p, *val;
|
|
int quotec, next, c;
|
|
int token;
|
|
|
|
top:
|
|
p = buf;
|
|
while ((c = lgetc(0)) == ' ' || c == '\t')
|
|
; /* nothing */
|
|
|
|
yylval.lineno = file->lineno;
|
|
if (c == '#')
|
|
while ((c = lgetc(0)) != '\n' && c != EOF)
|
|
; /* nothing */
|
|
if (c == '$' && !expanding) {
|
|
while (1) {
|
|
if ((c = lgetc(0)) == EOF)
|
|
return 0;
|
|
if (p + 1 >= buf + sizeof(buf) -1) {
|
|
yyerror("string too long");
|
|
return findeol();
|
|
}
|
|
if (isalnum(c) || c == '_') {
|
|
*p++ = c;
|
|
continue;
|
|
}
|
|
*p = '\0';
|
|
lungetc(c);
|
|
break;
|
|
}
|
|
val = symget(buf);
|
|
if (val == NULL) {
|
|
yyerror("macro `%s' not defined", buf);
|
|
return findeol();
|
|
}
|
|
yylval.v.string = xstrdup(val);
|
|
return STRING;
|
|
}
|
|
if (c == '@' && !expanding) {
|
|
while (1) {
|
|
if ((c = lgetc(0)) == EOF)
|
|
return 0;
|
|
|
|
if (p + 1 >= buf + sizeof(buf) - 1) {
|
|
yyerror("string too long");
|
|
return findeol();
|
|
}
|
|
if (isalnum(c) || c == '_') {
|
|
*p++ = c;
|
|
continue;
|
|
}
|
|
*p = '\0';
|
|
lungetc(c);
|
|
break;
|
|
}
|
|
val = symget(buf);
|
|
if (val == NULL) {
|
|
yyerror("macro '%s' not defined", buf);
|
|
return findeol();
|
|
}
|
|
p = val + strlen(val) - 1;
|
|
lungetc(DONE_EXPAND);
|
|
while (p >= val) {
|
|
lungetc(*p);
|
|
p--;
|
|
}
|
|
lungetc(START_EXPAND);
|
|
goto top;
|
|
}
|
|
|
|
switch (c) {
|
|
case '\'':
|
|
case '"':
|
|
quotec = c;
|
|
while (1) {
|
|
if ((c = lgetc(quotec)) == EOF)
|
|
return 0;
|
|
if (c == '\n') {
|
|
file->lineno++;
|
|
continue;
|
|
} else if (c == '\\') {
|
|
if ((next = lgetc(quotec)) == EOF)
|
|
return (0);
|
|
if (next == quotec || next == ' ' ||
|
|
next == '\t')
|
|
c = next;
|
|
else if (next == '\n') {
|
|
file->lineno++;
|
|
continue;
|
|
} else
|
|
lungetc(next);
|
|
} else if (c == quotec) {
|
|
*p = '\0';
|
|
break;
|
|
} else if (c == '\0') {
|
|
yyerror("invalid syntax");
|
|
return findeol();
|
|
}
|
|
if (p + 1 >= buf + sizeof(buf) - 1) {
|
|
yyerror("string too long");
|
|
return findeol();
|
|
}
|
|
*p++ = c;
|
|
}
|
|
yylval.v.string = strdup(buf);
|
|
if (yylval.v.string == NULL)
|
|
fatal("yylex: strdup");
|
|
return STRING;
|
|
}
|
|
|
|
#define allowed_to_end_number(x) \
|
|
(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
|
|
|
|
if (c == '-' || isdigit(c)) {
|
|
do {
|
|
*p++ = c;
|
|
if ((size_t)(p-buf) >= sizeof(buf)) {
|
|
yyerror("string too long");
|
|
return findeol();
|
|
}
|
|
} while ((c = lgetc(0)) != EOF && isdigit(c));
|
|
lungetc(c);
|
|
if (p == buf + 1 && buf[0] == '-')
|
|
goto nodigits;
|
|
if (c == EOF || allowed_to_end_number(c)) {
|
|
const char *errstr = NULL;
|
|
|
|
*p = '\0';
|
|
yylval.v.number = strtonum(buf, LLONG_MIN,
|
|
LLONG_MAX, &errstr);
|
|
if (errstr) {
|
|
yyerror("\"%s\" invalid number: %s",
|
|
buf, errstr);
|
|
return findeol();
|
|
}
|
|
return NUM;
|
|
} else {
|
|
nodigits:
|
|
while (p > buf + 1)
|
|
lungetc(*--p);
|
|
c = *--p;
|
|
if (c == '-')
|
|
return c;
|
|
}
|
|
}
|
|
|
|
#define allowed_in_string(x) \
|
|
(isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
|
|
x != '{' && x != '}' && \
|
|
x != '!' && x != '=' && x != '#' && \
|
|
x != ',' && x != ';'))
|
|
|
|
if (isalnum(c) || c == ':' || c == '_') {
|
|
do {
|
|
*p++ = c;
|
|
if ((size_t)(p-buf) >= sizeof(buf)) {
|
|
yyerror("string too long");
|
|
return findeol();
|
|
}
|
|
} while ((c = lgetc(0)) != EOF && (allowed_in_string(c)));
|
|
lungetc(c);
|
|
*p = '\0';
|
|
if ((token = lookup(buf)) == STRING)
|
|
yylval.v.string = xstrdup(buf);
|
|
return token;
|
|
}
|
|
if (c == '\n') {
|
|
yylval.lineno = file->lineno;
|
|
file->lineno++;
|
|
}
|
|
if (c == EOF)
|
|
return 0;
|
|
return c;
|
|
}
|
|
|
|
struct file *
|
|
pushfile(const char *name, int secret)
|
|
{
|
|
struct file *nfile;
|
|
|
|
nfile = xcalloc(1, sizeof(*nfile));
|
|
nfile->name = xstrdup(name);
|
|
if ((nfile->stream = fopen(nfile->name, "r")) == NULL) {
|
|
log_warn("can't open %s", nfile->name);
|
|
free(nfile->name);
|
|
free(nfile);
|
|
return NULL;
|
|
}
|
|
nfile->lineno = TAILQ_EMPTY(&files) ? 1 : 0;
|
|
nfile->ungetsize = 16;
|
|
nfile->ungetbuf = xcalloc(1, nfile->ungetsize);
|
|
TAILQ_INSERT_TAIL(&files, nfile, entry);
|
|
return nfile;
|
|
}
|
|
|
|
int
|
|
popfile(void)
|
|
{
|
|
struct file *prev;
|
|
|
|
if ((prev = TAILQ_PREV(file, files, entry)) != NULL)
|
|
prev->errors += file->errors;
|
|
|
|
TAILQ_REMOVE(&files, file, entry);
|
|
fclose(file->stream);
|
|
free(file->name);
|
|
free(file->ungetbuf);
|
|
free(file);
|
|
file = prev;
|
|
return file ? 0 : EOF;
|
|
}
|
|
|
|
int
|
|
parse_conf(struct conf *c, const char *filename)
|
|
{
|
|
struct sym *sym, *next;
|
|
|
|
default_host = "*";
|
|
default_port = 1965;
|
|
|
|
conf = c;
|
|
|
|
file = pushfile(filename, 0);
|
|
if (file == NULL)
|
|
return -1;
|
|
topfile = file;
|
|
|
|
yyparse();
|
|
errors = file->errors;
|
|
popfile();
|
|
|
|
/* Free macros and check which have not been used. */
|
|
TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
|
|
/* TODO: warn if !sym->used */
|
|
if (!sym->persist) {
|
|
free(sym->name);
|
|
free(sym->val);
|
|
TAILQ_REMOVE(&symhead, sym, entry);
|
|
free(sym);
|
|
}
|
|
}
|
|
|
|
if (errors)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
symset(const char *name, const char *val, int persist)
|
|
{
|
|
struct sym *sym;
|
|
|
|
TAILQ_FOREACH(sym, &symhead, entry) {
|
|
if (!strcmp(name, sym->name))
|
|
break;
|
|
}
|
|
|
|
if (sym != NULL) {
|
|
if (sym->persist)
|
|
return 0;
|
|
else {
|
|
free(sym->name);
|
|
free(sym->val);
|
|
TAILQ_REMOVE(&symhead, sym, entry);
|
|
free(sym);
|
|
}
|
|
}
|
|
|
|
sym = xcalloc(1, sizeof(*sym));
|
|
sym->name = xstrdup(name);
|
|
sym->val = xstrdup(val);
|
|
sym->used = 0;
|
|
sym->persist = persist;
|
|
|
|
TAILQ_INSERT_TAIL(&symhead, sym, entry);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
cmdline_symset(char *s)
|
|
{
|
|
char *sym, *val;
|
|
int ret;
|
|
|
|
if ((val = strrchr(s, '=')) == NULL)
|
|
return -1;
|
|
sym = xcalloc(1, val - s + 1);
|
|
memcpy(sym, s, val - s);
|
|
ret = symset(sym, val + 1, 1);
|
|
free(sym);
|
|
return ret;
|
|
}
|
|
|
|
char *
|
|
symget(const char *nam)
|
|
{
|
|
struct sym *sym;
|
|
|
|
TAILQ_FOREACH(sym, &symhead, entry) {
|
|
if (strcmp(nam, sym->name) == 0) {
|
|
sym->used = 1;
|
|
return sym->val;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
char *
|
|
ensure_absolute_path(char *path)
|
|
{
|
|
if (path == NULL || *path != '/')
|
|
yyerror("not an absolute path: %s", path);
|
|
return path;
|
|
}
|
|
|
|
int
|
|
check_block_code(int n)
|
|
{
|
|
if (n < 10 || n >= 70 || (n >= 20 && n <= 29))
|
|
yyerror("invalid block code %d", n);
|
|
return n;
|
|
}
|
|
|
|
char *
|
|
check_block_fmt(char *fmt)
|
|
{
|
|
char *s;
|
|
|
|
for (s = fmt; *s; ++s) {
|
|
if (*s != '%')
|
|
continue;
|
|
switch (*++s) {
|
|
case '%':
|
|
case 'p':
|
|
case 'q':
|
|
case 'P':
|
|
case 'N':
|
|
break;
|
|
default:
|
|
yyerror("invalid format specifier %%%c", *s);
|
|
}
|
|
}
|
|
|
|
return fmt;
|
|
}
|
|
|
|
int
|
|
check_strip_no(int n)
|
|
{
|
|
if (n <= 0)
|
|
yyerror("invalid strip number %d", n);
|
|
return n;
|
|
}
|
|
|
|
int
|
|
check_port_num(int n)
|
|
{
|
|
if (n <= 0 || n >= UINT16_MAX)
|
|
yyerror("port number is %s: %d",
|
|
n <= 0 ? "too small" : "too large",
|
|
n);
|
|
return n;
|
|
}
|
|
|
|
int
|
|
check_prefork_num(int n)
|
|
{
|
|
if (n <= 0 || n >= PROC_MAX_INSTANCES)
|
|
yyerror("invalid prefork number %d", n);
|
|
return n;
|
|
}
|
|
|
|
void
|
|
advance_loc(void)
|
|
{
|
|
loc = new_location();
|
|
TAILQ_INSERT_TAIL(&host->locations, loc, locations);
|
|
}
|
|
|
|
void
|
|
advance_proxy(void)
|
|
{
|
|
proxy = new_proxy();
|
|
TAILQ_INSERT_TAIL(&host->proxies, proxy, proxies);
|
|
}
|
|
|
|
void
|
|
parsehp(char *str, char **host, const char **port, const char *def)
|
|
{
|
|
char *at;
|
|
const char *errstr;
|
|
|
|
*host = str;
|
|
|
|
if ((at = strchr(str, ':')) != NULL) {
|
|
*at++ = '\0';
|
|
*port = at;
|
|
} else
|
|
*port = def;
|
|
|
|
strtonum(*port, 1, UINT16_MAX, &errstr);
|
|
if (errstr != NULL)
|
|
yyerror("port is %s: %s", errstr, *port);
|
|
}
|
|
|
|
int
|
|
fastcgi_conf(const char *path, const char *port)
|
|
{
|
|
struct fcgi *f;
|
|
int i = 0;
|
|
|
|
TAILQ_FOREACH(f, &conf->fcgi, fcgi) {
|
|
if (!strcmp(f->path, path) &&
|
|
((port == NULL && *f->port == '\0') ||
|
|
!strcmp(f->port, port)))
|
|
return i;
|
|
++i;
|
|
}
|
|
|
|
f = xcalloc(1, sizeof(*f));
|
|
f->id = i;
|
|
(void)strlcpy(f->path, path, sizeof(f->path));
|
|
if (port != NULL)
|
|
(void)strlcpy(f->port, port, sizeof(f->port));
|
|
TAILQ_INSERT_TAIL(&conf->fcgi, f, fcgi);
|
|
|
|
return f->id;
|
|
}
|
|
|
|
void
|
|
add_param(char *name, char *val)
|
|
{
|
|
struct envlist *e;
|
|
struct envhead *h = &loc->params;
|
|
|
|
e = xcalloc(1, sizeof(*e));
|
|
(void) strlcpy(e->name, name, sizeof(e->name));
|
|
(void) strlcpy(e->value, val, sizeof(e->value));
|
|
TAILQ_INSERT_TAIL(h, e, envs);
|
|
}
|
|
|
|
int
|
|
getservice(const char *n)
|
|
{
|
|
struct servent *s;
|
|
const char *errstr;
|
|
long long llval;
|
|
|
|
llval = strtonum(n, 0, UINT16_MAX, &errstr);
|
|
if (errstr) {
|
|
s = getservbyname(n, "tcp");
|
|
if (s == NULL)
|
|
s = getservbyname(n, "udp");
|
|
if (s == NULL)
|
|
return (-1);
|
|
return (ntohs(s->s_port));
|
|
}
|
|
|
|
return ((unsigned short)llval);
|
|
}
|
|
|
|
static void
|
|
add_to_addr_queue(struct addrhead *a, struct addrinfo *ai)
|
|
{
|
|
struct address *addr;
|
|
struct sockaddr_in *sin;
|
|
struct sockaddr_in6 *sin6;
|
|
|
|
if (ai->ai_addrlen > sizeof(addr->ss))
|
|
fatalx("ai_addrlen larger than a sockaddr_storage");
|
|
|
|
TAILQ_FOREACH(addr, a, addrs) {
|
|
if (addr->ai_flags == ai->ai_flags &&
|
|
addr->ai_family == ai->ai_family &&
|
|
addr->ai_socktype == ai->ai_socktype &&
|
|
addr->ai_protocol == ai->ai_protocol &&
|
|
addr->slen == ai->ai_addrlen &&
|
|
!memcmp(&addr->ss, ai->ai_addr, addr->slen))
|
|
return;
|
|
}
|
|
|
|
addr = xcalloc(1, sizeof(*addr));
|
|
addr->ai_flags = ai->ai_flags;
|
|
addr->ai_family = ai->ai_family;
|
|
addr->ai_socktype = ai->ai_socktype;
|
|
addr->ai_protocol = ai->ai_protocol;
|
|
addr->slen = ai->ai_addrlen;
|
|
memcpy(&addr->ss, ai->ai_addr, ai->ai_addrlen);
|
|
|
|
/* for commodity */
|
|
switch (addr->ai_family) {
|
|
case AF_INET:
|
|
sin = (struct sockaddr_in *)&addr->ss;
|
|
addr->port = ntohs(sin->sin_port);
|
|
break;
|
|
case AF_INET6:
|
|
sin6 = (struct sockaddr_in6 *)&addr->ss;
|
|
addr->port = ntohs(sin6->sin6_port);
|
|
break;
|
|
default:
|
|
fatalx("unknown socket family %d", addr->ai_family);
|
|
}
|
|
|
|
addr->sock = -1;
|
|
|
|
TAILQ_INSERT_HEAD(a, addr, addrs);
|
|
}
|
|
|
|
void
|
|
listen_on(const char *hostname, const char *servname)
|
|
{
|
|
struct addrinfo hints, *res, *res0;
|
|
int error;
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_flags = AI_PASSIVE;
|
|
error = getaddrinfo(hostname, servname, &hints, &res0);
|
|
if (error) {
|
|
yyerror("listen on \"%s\" port %s: %s", hostname, servname,
|
|
gai_strerror(errno));
|
|
return;
|
|
}
|
|
|
|
for (res = res0; res; res = res->ai_next) {
|
|
add_to_addr_queue(&host->addrs, res);
|
|
add_to_addr_queue(&conf->addrs, res);
|
|
}
|
|
|
|
freeaddrinfo(res0);
|
|
}
|