sysutils.h

   1 /* source: sysutils.h */
   2 /* Copyright Gerhard Rieger */
   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 #if WITH_INTERFACE
  31    struct sockaddr_ll ll;
  32 #endif
  33 } ;
  34 #endif /* _WITH_SOCKET */
  35
  36 #if _WITH_SOCKET
  37 struct xiorange {
  38    union sockaddr_union netaddr;
  39    union sockaddr_union netmask;
  40 } ;
  41 #endif /* _WITH_SOCKET */
  42
  43 extern ssize_t writefull(int fd, const void *buff, size_t bytes);
  44
  45 #if _WITH_SOCKET
  46 extern socklen_t socket_init(int af, union sockaddr_union *sa);
  47 #endif
  48 #if WITH_UNIX
  49 extern void socket_un_init(struct sockaddr_un *sa);
  50 #endif /* WITH_UNIX */
  51 #if _WITH_IP4
  52 extern void socket_in_init(struct sockaddr_in *sa);
  53 #endif /* _WITH_IP4 */
  54 #if _WITH_IP6
  55 extern void socket_in6_init(struct sockaddr_in6 *sa);
  56 #endif /* _WITH_IP4 */
  57
  58 #if _WITH_SOCKET
  59 extern char *sockaddr_info(const struct sockaddr *sa, socklen_t salen, char *buff, size_t blen);
  60 #endif
  61 #if WITH_UNIX
  62 extern char *sockaddr_unix_info(const struct sockaddr_un *sa, socklen_t salen, char *buff, size_t blen);
  63 #endif /* WITH_UNIX */
  64 #if WITH_IP4
  65 extern char *inet4addr_info(uint32_t addr, char *buff, size_t blen);
  66 extern char *sockaddr_inet4_info(const struct sockaddr_in *sa, char *buff, size_t blen);
  67 #endif /* WITH_IP4 */
  68 #if WITH_IP6
  69 extern char *sockaddr_inet6_info(const struct sockaddr_in6 *sa, char *buff, size_t blen);
  70 #endif /* WITH_IP6 */
  71 #if !HAVE_INET_NTOP
  72 extern const char *inet_ntop(int pf, const void *binaddr,
  73                              char *addrtext, socklen_t textlen);
  74 #endif
  75
  76 #if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
  77 extern int getusergroups(const char *user, gid_t *list, int *ngroups);
  78 #endif
  79
  80 #if !HAVE_HSTRERROR
  81 extern const char *hstrerror(int err);
  82 #endif
  83
  84 extern int xiopoll(struct pollfd fds[], unsigned long nfds, struct timeval *timeout);
  85
  86 extern int parseport(const char *portname, int proto);
  87
  88 extern int ifindexbyname(const char *ifname, int anysock);
  89 extern int ifindex(const char *ifname, unsigned int *ifindex, int anysock);
  90
  91 extern int xiosetenv(const char *varname, const char *value, int overwrite, const char *sep);
  92 extern int
  93 xiosetenv2(const char *varname, const char *varname2, const char *value,
  94            int overwrite, const char *sep);
  95 extern int
  96 xiosetenv3(const char *varname, const char *varname2, const char *varname3,
  97            const char *value, int overwrite, const char *sep);
  98 extern int xiosetenvulong(const char *varname, unsigned long value,
  99                           int overwrite);
 100 extern int xiosetenvushort(const char *varname, unsigned short value,
 101                            int overwrite);
 102
 103 #endif /* !defined(__sysutils_h_included) */