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/* common stuff for cgi-fcgi-interp and prefork-interp */
/*
* Copyright 2016-2022 Ian Jackson and contributors to chiark-utils
* SPDX-License-Identifier: GPL-3.0-or-later
* There is NO WARRANTY.
*/
#ifndef PREFORK_H
#define PREFORK_H
#include "common.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <stdbool.h>
#include <assert.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/file.h>
#include <unistd.h>
#include <fcntl.h>
#include <pwd.h>
#include <time.h>
#include <signal.h>
#include <sys/wait.h>
#include <syslog.h>
#include <nettle/sha.h>
#include "myopt.h"
#define MINHEXHASH 33
extern const char *interp, *ident, *script, *socket_path, *lock_path;
extern bool logging;
extern struct sha256_ctx identsc;
extern const char *run_base;
extern const char our_name[];
bool find_run_base_var_run(void);
void find_socket_path(void);
int acquire_lock(void);
int flock_file(const char *lock_path);
extern const struct cmdinfo cmdinfos[];
#define PREFORK_CMDINFOS \
{ "help", 0, .call=of_help }, \
{ 0, 'g', 1, .sassignto= &ident }, \
{ 0, 'G', 1, .call= off_ident_addstring }, \
{ 0, 'E', 1, .call= off_ident_addenv },
void process_opts(const char *const **argv_io);
void vmsgcore(int estatus, int errnoval, const char *fmt, va_list al);
#define DEF_MSG(func, attrs, estatus, errnoval, after) \
static void func(const char *fmt, ...) \
__attribute__((unused, format(printf,1,2))) attrs; \
static void func(const char *fmt, ...) { \
va_list al; \
va_start(al,fmt); \
vmsgcore(estatus,errnoval,fmt,al); \
after \
}
DEF_MSG(warninge, /*empty*/, 0, errno, { });
DEF_MSG(warning , /*empty*/, 0, -1, { });
#define DEF_DIE(func, errnoval) \
DEF_MSG(func, __attribute__((noreturn)), 127, errnoval, { abort(); })
DEF_DIE(diee, errno)
DEF_DIE(die, -1)
#define MAX_OPTS 5
void fusagemessage(FILE *f);
void usagemessage(void);
void of_help(const struct cmdinfo *ci, const char *val);
void of_iassign(const struct cmdinfo *ci, const char *val);
void ident_addinit(void);
bool stabs_same_inode(struct stat *a, struct stat *b);
void ident_addstring(char key, const char *string);
void off_ident_addstring(const struct cmdinfo *ci, const char *name);
void off_ident_addenv(const struct cmdinfo *ci, const char *name);
void ident_add_key_byte(char key);
#define IDENT_ADD_OBJ(key, obj) do{ \
ident_add_key_byte(key); \
sha256_update(&identsc, sizeof((obj)), (void*)&obj); \
}while(0)
#endif /*PREFORK_H*/
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