1 /*
2  * Copyright (C) 2003  Sam Horrocks
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
17  *
18  */
19 
20 /* Implementing DIE_QUIET as a macro was problematic, so now it's a function. */
21 #ifndef DIE_QUIET
22 #define DIE_QUIET speedy_util_die_quiet
23 #endif
24 
25 typedef struct {
26     void	*addr;
27     int		maplen;
28     int		is_mmaped;
29 } SpeedyMapInfo;
30 
31 typedef struct {
32     char *buf;
33     int  alloced;
34     int  len;
35 } SpeedyBuf;
36 
37 int speedy_util_pref_fd(int oldfd, int newfd);
38 SPEEDY_INLINE int speedy_util_getuid(void);
39 SPEEDY_INLINE int speedy_util_geteuid(void);
40 int speedy_util_seteuid(int id);
41 int speedy_util_argc(const char * const * argv);
42 SPEEDY_INLINE int speedy_util_getpid(void);
43 void speedy_util_pid_invalidate(void);
44 void speedy_util_die(const char *fmt, ...);
45 void speedy_util_die_quiet(const char *fmt, ...);
46 int speedy_util_execvp(const char *filename, const char *const *argv);
47 char *speedy_util_strndup(const char *s, int len);
48 SPEEDY_INLINE int speedy_util_time(void);
49 SPEEDY_INLINE void speedy_util_gettimeofday(struct timeval *tv);
50 void speedy_util_time_invalidate(void);
51 char *speedy_util_fname(int num, char type);
52 char *speedy_util_getcwd(void);
53 SpeedyMapInfo *speedy_util_mapin(int fd, int max_size, int file_size);
54 void speedy_util_mapout(SpeedyMapInfo *mi);
55 SPEEDY_INLINE SpeedyDevIno speedy_util_stat_devino(const struct stat *stbuf);
56 SPEEDY_INLINE int speedy_util_open_stat(const char *path, struct stat *stbuf);
57 void speedy_util_exit(int status, int underbar_exit);
58 int speedy_util_kill(pid_t pid, int sig);
59 
60 #define speedy_util_strdup(s) speedy_util_strndup(s, strlen(s))
61 
62 #define PREF_FD_DONTCARE	-1
63 
64 /* Preferred file descriptors */
65 
66 #ifdef SPEEDY_BACKEND
67 #define PREF_FD_ACCEPT_I	0
68 #define PREF_FD_ACCEPT_O	1
69 #define PREF_FD_ACCEPT_E	2
70 #define PREF_FD_FILE		17
71 #define PREF_FD_LISTENER	18
72 #define PREF_FD_CWD		19
73 #else
74 #define PREF_FD_FILE		PREF_FD_DONTCARE
75 #endif
76 
77 #ifdef SPEEDY_DEBUG
78 
79 #if !defined(RLIM_INFINITY) || !defined(RLIMIT_CORE)
80 #include <sys/resource.h>
81 #endif
82 
83 #define speedy_util_unlimit_core() \
84     { \
85 	struct rlimit rlimitvals; \
86 	rlimitvals.rlim_cur = RLIM_INFINITY; \
87 	rlimitvals.rlim_max = RLIM_INFINITY; \
88 	setrlimit(RLIMIT_CORE, &rlimitvals); \
89     }
90 
91 #else
92 
93 #define speedy_util_unlimit_core()
94 
95 #endif /* SPEEDY_DEBUG */
96