sysutils.h

   1 /* source: sysutils.h */
   2 /* Copyright Gerhard Rieger and contributors (see file CHANGES) */
   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_VSOCK
  31    struct sockaddr_vm vm;
  32 #endif /* WITH_IP6 */
  33 #if _WITH_INTERFACE
  34    struct sockaddr_ll ll;
  35 #endif
  36 } ;
  37 #endif /* _WITH_SOCKET */
  38
  39 #if _WITH_SOCKET
  40 struct xiorange {
  41    union sockaddr_union netaddr;
  42    union sockaddr_union netmask;
  43 } ;
  44 #endif /* _WITH_SOCKET */
  45
  46 #if _WITH_INTERFACE
  47 extern const int one;
  48 #endif
  49
  50 extern ssize_t writefull(int fd, const void *buff, size_t bytes);
  51
  52 #if _WITH_SOCKET
  53 extern socklen_t socket_init(int af, union sockaddr_union *sa);
  54 #endif
  55 #if WITH_UNIX
  56 extern void socket_un_init(struct sockaddr_un *sa);
  57 #endif /* WITH_UNIX */
  58 #if _WITH_IP4
  59 extern void socket_in_init(struct sockaddr_in *sa);
  60 #endif /* _WITH_IP4 */
  61 #if _WITH_IP6
  62 extern void socket_in6_init(struct sockaddr_in6 *sa);
  63 #endif /* _WITH_IP4 */
  64
  65 #if _WITH_SOCKET
  66 extern char *sockaddr_info(const struct sockaddr *sa, socklen_t salen, char *buff, size_t blen);
  67 #endif
  68 #if WITH_UNIX
  69 extern char *sockaddr_unix_info(const struct sockaddr_un *sa, socklen_t salen, char *buff, size_t blen);
  70 #endif /* WITH_UNIX */
  71 #if WITH_IP4
  72 extern char *inet4addr_info(uint32_t addr, char *buff, size_t blen);
  73 extern char *sockaddr_inet4_info(const struct sockaddr_in *sa, char *buff, size_t blen);
  74 #endif /* WITH_IP4 */
  75 #if WITH_IP6
  76 extern char *sockaddr_inet6_info(const struct sockaddr_in6 *sa, char *buff, size_t blen);
  77 #endif /* WITH_IP6 */
  78 #if WITH_VSOCK
  79 extern char *sockaddr_vm_info(const struct sockaddr_vm *sa, char *buff, size_t blen);
  80 extern int sockaddr_vm_parse(struct sockaddr_vm *sa, const char *cid_str,
  81                              const char *port_str);
  82 #endif /* WITH_VSOCK */
  83 #if !HAVE_INET_NTOP
  84 extern const char *inet_ntop(int pf, const void *binaddr,
  85                              char *addrtext, socklen_t textlen);
  86 #endif
  87 extern int check_ip4addr(const char *address);
  88 extern int check_ip6addr(const char *address);
  89 extern int check_ipaddr(const char *address);
  90
  91 #if defined(HAVE_SETGRENT) && defined(HAVE_GETGRENT) && defined(HAVE_ENDGRENT)
  92 extern int getusergroups(const char *user, gid_t *list, int *ngroups);
  93 #endif
  94
  95 #if !HAVE_HSTRERROR
  96 extern const char *hstrerror(int err);
  97 #endif
  98
  99 extern int xiopoll(struct pollfd fds[], unsigned long nfds, struct timeval *timeout);
 100
 101 extern int parseport(const char *portname, int proto);
 102
 103 extern int ifindexbyname(const char *ifname, int anysock);
 104 extern int ifindex(const char *ifname, unsigned int *ifindex, int anysock);
 105
 106 extern int xiosetenv(const char *varname, const char *value, int overwrite, const char *sep);
 107 extern int
 108 xiosetenv2(const char *varname, const char *varname2, const char *value,
 109            int overwrite, const char *sep);
 110 extern int
 111 xiosetenv3(const char *varname, const char *varname2, const char *varname3,
 112            const char *value, int overwrite, const char *sep);
 113 extern int xiosetenvulong(const char *varname, unsigned long value,
 114                           int overwrite);
 115 extern int xiosetenvushort(const char *varname, unsigned short value,
 116                            int overwrite);
 117 extern unsigned long int Strtoul(const char *nptr, char **endptr, int base, const char *txt);
 118 extern long long int Strtoll(const char *nptr, char **endptr, int base, const char *txt);
 119 extern double Strtod(const char *nptr, char **endptr, const char *txt);
 120 extern int xio_opensnifffile(const char *a, struct timeval *tv);
 121
 122 #endif /* !defined(__sysutils_h_included) */