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- /* Copyright 2003 Roger Dingledine */
- /* See LICENSE for licensing information */
- /* $Id$ */
- #ifndef __UTIL_H
- #define __UTIL_H
- #include "../or/or.h"
- #if _MSC_VER > 1300
- #include <winsock2.h>
- #include <ws2tcpip.h>
- #elif defined(_MSC_VER)
- #include <winsock.h>
- #endif
- #ifndef HAVE_GETTIMEOFDAY
- #ifdef HAVE_FTIME
- #define USING_FAKE_TIMEVAL
- #include <sys/timeb.h>
- #define timeval timeb
- #define tv_sec time
- #define tv_usec millitm
- #endif
- #endif
- #ifdef MS_WINDOWS
- /* Windows names string functions funnily. */
- #define strncasecmp strnicmp
- #define strcasecmp stricmp
- #define INLINE __inline
- #else
- #define INLINE inline
- #endif
- size_t strlcat(char *dst, const char *src, size_t siz);
- size_t strlcpy(char *dst, const char *src, size_t siz);
- void *tor_malloc(size_t size);
- void *tor_malloc_zero(size_t size);
- void *tor_realloc(void *ptr, size_t size);
- char *tor_strdup(const char *s);
- char *tor_strndup(const char *s, size_t n);
- #define tor_free(p) do {if(p) {free(p); (p)=NULL;}} while(0)
- typedef struct {
- void **list;
- int num_used;
- int max;
- } smartlist_t;
- smartlist_t *smartlist_create(int max_elements);
- void smartlist_free(smartlist_t *sl);
- void smartlist_add(smartlist_t *sl, void *element);
- void smartlist_remove(smartlist_t *sl, void *element);
- int smartlist_isin(smartlist_t *sl, void *element);
- int smartlist_overlap(smartlist_t *sl1, smartlist_t *sl2);
- void smartlist_intersect(smartlist_t *sl1, smartlist_t *sl2);
- void smartlist_subtract(smartlist_t *sl1, smartlist_t *sl2);
- void *smartlist_choose(smartlist_t *sl);
- /* Map from const char * to void*. Implemented with a splay tree. */
- typedef struct strmap_t strmap_t;
- typedef struct strmap_entry_t strmap_entry_t;
- typedef struct strmap_entry_t strmap_iter_t;
- strmap_t* strmap_new(void);
- void* strmap_set(strmap_t *map, const char *key, void *val);
- void* strmap_get(strmap_t *map, const char *key);
- void* strmap_remove(strmap_t *map, const char *key);
- void strmap_foreach(strmap_t *map,
- void* (*fn)(const char *key, void *val, void *data),
- void *data);
- void strmap_free(strmap_t *map, void (*free_val)(void*));
- strmap_iter_t *strmap_iter_init(strmap_t *map);
- strmap_iter_t *strmap_iter_next(strmap_t *map, strmap_iter_t *iter);
- strmap_iter_t *strmap_iter_next_rmv(strmap_t *map, strmap_iter_t *iter);
- void strmap_iter_get(strmap_iter_t *iter, const char **keyp, void **valp);
- int strmap_iter_done(strmap_iter_t *iter);
- const char *eat_whitespace(const char *s);
- const char *eat_whitespace_no_nl(const char *s);
- const char *find_whitespace(const char *s);
- void tor_gettimeofday(struct timeval *timeval);
- long tv_udiff(struct timeval *start, struct timeval *end);
- void tv_addms(struct timeval *a, long ms);
- void tv_add(struct timeval *a, struct timeval *b);
- int tv_cmp(struct timeval *a, struct timeval *b);
- time_t tor_timegm (struct tm *tm);
- int write_all(int fd, const char *buf, size_t count, int isSocket);
- int read_all(int fd, char *buf, size_t count, int isSocket);
- void set_socket_nonblocking(int socket);
- typedef enum { FN_ERROR, FN_NOENT, FN_FILE, FN_DIR} file_status_t;
- file_status_t file_status(const char *filename);
- int check_private_dir(const char *dirname, int create);
- int write_str_to_file(const char *fname, const char *str);
- char *read_file_to_str(const char *filename);
- int parse_line_from_file(char *line, int maxlen, FILE *f, char **key_out, char **value_out);
- int spawn_func(int (*func)(void *), void *data);
- void spawn_exit();
- int tor_socketpair(int family, int type, int protocol, int fd[2]);
- int is_internal_IP(uint32_t ip);
- const char *get_uname(void);
- /* Start putting the process into daemon mode: fork and drop all resources
- * except standard fds. The parent process never returns, but stays around
- * until finish_daemon is called. (Note: it's safe to call this more
- * than once: calls after the first are ignored.)
- */
- void start_daemon(char *desired_cwd);
- /* Finish putting the process into daemon mode: drop standard fds, and tell
- * the parent process to exit. (Note: it's safe to call this more than once:
- * calls after the first are ignored. Calls start_daemon first if it hasn't
- * been called already.)
- */
- void finish_daemon(void);
- void write_pidfile(char *filename);
- int switch_id(char *user, char *group);
- struct in_addr;
- int tor_inet_aton(const char *cp, struct in_addr *addr);
- /* For stupid historical reasons, windows sockets have an independent set of
- * errnos which they use as the fancy strikes them.
- */
- #ifdef MS_WINDOWS
- #define ERRNO_EAGAIN(e) ((e) == EAGAIN || (e) == WSAEWOULDBLOCK)
- #define ERRNO_EINPROGRESS(e) ((e) == WSAEINPROGRESS)
- #define ERRNO_CONN_EINPROGRESS(e) ((e) == WSAEINPROGRESS || (e) == WSAEINVAL)
- int correct_socket_errno(int s);
- #else
- #define ERRNO_EAGAIN(e) ((e) == EAGAIN)
- #define ERRNO_EINPROGRESS(e) ((e) == EINPROGRESS)
- #define ERRNO_CONN_EINPROGRESS(e) ((e) == EINPROGRESS)
- #define correct_socket_errno(s) (errno)
- #endif
- #endif
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