sysutils.h

   1 /* source: sysutils.h */
   2 /* Copyright Gerhard Rieger 2001-2008 */
   3 /* Published under the GNU General Public License V.2, see file COPYING */
   4
   5 #ifndef __sysutils_h_included
   6 #define __sysutils_h_included 1
   7
   8 #if WITH_IP6
   9 /* not all OSes provide in6_addr that allows splitting to 16 or 32 bit junks of
  10    the host address part of sockaddr_in6; here we help ourselves */
  11 union xioin6_u {
  12    uint8_t  u6_addr8[16];
  13    uint16_t u6_addr16[8];
  14    uint32_t u6_addr32[4];
  15 } ;
  16 #endif /* WITH_IP6 */
  17
  18 #if _WITH_SOCKET
  19 union sockaddr_union {
  20    struct sockaddr soa;
  21 #if WITH_UNIX
  22    struct sockaddr_un un;
  23 #endif /* WITH_UNIX */
  24 #if _WITH_IP4
  25    struct sockaddr_in ip4;
  26 #endif /* _WITH_IP4 */
  27 #if WITH_IP6
  28    struct sockaddr_in6 ip6;
  29 #endif /* WITH_IP6 */
  30 } ;
  31 #endif /* _WITH_SOCKET */
  32
  33 #if _WITH_SOCKET
  34 struct xiorange {
  35    union sockaddr_union netaddr;
  36    union sockaddr_union netmask;
  37 } ;
  38 #endif /* _WITH_SOCKET */
  39
  40 #if _WITH_SOCKET
  41 extern socklen_t socket_init(int af, union sockaddr_union *sa);
  42 #endif
  43 #if WITH_UNIX
  44 extern void socket_un_init(struct sockaddr_un *sa);
  45 #endif /* WITH_UNIX */
  46 #if _WITH_IP4
  47 extern void socket_in_init(struct sockaddr_in *sa);
  48 #endif /* _WITH_IP4 */
  49 #if _WITH_IP6
  50 extern void socket_in6_init(struct sockaddr_in6 *sa);
  51 #endif /* _WITH_IP4 */
  52
  53 #if _WITH_SOCKET
  54 extern char *sockaddr_info(const struct sockaddr *sa, socklen_t salen, char *buff, size_t blen);
  55 #endif
  56 #if WITH_UNIX
  57 extern char *sockaddr_unix_info(const struct sockaddr_un *sa, socklen_t salen, char *buff, size_t blen);
  58 #endif /* WITH_UNIX */
  59 #if WITH_IP4
  60 extern char *inet4addr_info(uint32_t addr, char *buff, size_t blen);
  61 extern char *sockaddr_inet4_info(const struct sockaddr_in *sa, char *buff, size_t blen);
  62 #endif /* WITH_IP4 */
  63 #if WITH_IP6
  64 extern char *sockaddr_inet6_info(const struct sockaddr_in6 *sa, char *buff, size_t blen);
  65 #endif /* WITH_IP6 */
  66 #if !HAVE_INET_NTOP
  67 extern const char *inet_ntop(int pf, const void *binaddr,
  68                              char *addrtext, socklen_t textlen);
  69 #endif
  70
  71 extern int getusergroups(const char *user, gid_t *list, size_t *ngroups);
  72
  73 #if !HAVE_HSTRERROR
  74 extern const char *hstrerror(int err);
  75 #endif
  76
  77 extern int xiopoll(struct pollfd fds[], unsigned long nfds, struct timeval *timeout);
  78
  79 extern int parseport(const char *portname, int proto);
  80
  81 extern int ifindexbyname(const char *ifname, int anysock);
  82 extern int ifindex(const char *ifname, unsigned int *ifindex, int anysock);
  83
  84 extern int xiosetenv(const char *varname, const char *value, int overwrite);
  85 extern int
  86 xiosetenv2(const char *varname, const char *varname2, const char *value,
  87            int overwrite);
  88 extern int xiosetenvulong(const char *varname, unsigned long value,
  89                           int overwrite);
  90 extern int xiosetenvushort(const char *varname, unsigned short value,
  91                            int overwrite);
  92
  93 #endif /* !defined(__sysutils_h_included) */