minix/lib/libc/ip/bind.c
Thomas Veerman a209c3ae12 Fix a ton of compiler warnings
This patch fixes most of current reasons to generate compiler warnings.
The changes consist of:
 - adding missing casts
 - hiding or unhiding function declarations
 - including headers where missing
 - add __UNCONST when assigning a const char * to a char *
 - adding missing return statements
 - changing some types from unsigned to signed, as the code seems to want
   signed ints
 - converting old-style function definitions to current style (i.e.,
   void func(param1, param2) short param1, param2; {...} to
   void func (short param1, short param2) {...})
 - making the compiler silent about signed vs unsigned comparisons. We
   have too many of those in the new libc to fix.

A number of bugs in the test set were fixed. These bugs were never
triggered with our old libc. Consequently, these tests are now forced to
link with the new libc or they will generate errors (in particular tests 43
and 55).

Most changes in NetBSD libc are limited to moving aroudn "#ifndef __minix"
or stuff related to Minix-specific things (code in sys-minix or gen/minix).
2011-11-14 10:07:49 +00:00

210 lines
4.7 KiB
C

#include <unistd.h>
#include <stdint.h>
#include <stdlib.h>
#include <limits.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <netinet/in.h>
#include <net/gen/in.h>
#include <net/gen/tcp.h>
#include <net/gen/tcp_io.h>
#include <net/gen/udp.h>
#include <net/gen/udp_io.h>
#include <sys/un.h>
#include <minix/config.h>
#include <minix/const.h>
#define DEBUG 0
static int _tcp_bind(int socket, const struct sockaddr *address,
socklen_t address_len, nwio_tcpconf_t *tcpconfp);
static int _udp_bind(int socket, const struct sockaddr *address,
socklen_t address_len, nwio_udpopt_t *udpoptp);
static int _uds_bind(int socket, const struct sockaddr *address,
socklen_t address_len, struct sockaddr_un *uds_addr);
int bind(int socket, const struct sockaddr *address, socklen_t address_len)
{
int r;
nwio_tcpconf_t tcpconf;
nwio_udpopt_t udpopt;
struct sockaddr_un uds_addr;
r= ioctl(socket, NWIOGTCPCONF, &tcpconf);
if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
{
if (r == -1)
return r;
r= _tcp_bind(socket, address, address_len, &tcpconf);
#if DEBUG
if (r == -1)
{
int t_errno= errno;
fprintf(stderr, "bind(tcp) failed: %s\n",
strerror(errno));
errno= t_errno;
}
#endif
return r;
}
r= ioctl(socket, NWIOGUDPOPT, &udpopt);
if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
{
if (r == -1)
return r;
return _udp_bind(socket, address, address_len, &udpopt);
}
r= ioctl(socket, NWIOGUDSADDR, &uds_addr);
if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
{
if (r == -1)
return r;
return _uds_bind(socket, address, address_len, &uds_addr);
}
#if DEBUG
fprintf(stderr, "bind: not implemented for fd %d\n", socket);
#endif
errno= ENOSYS;
return -1;
}
static int _tcp_bind(int socket, const struct sockaddr *address,
socklen_t address_len, nwio_tcpconf_t *tcpconfp)
{
int r;
nwio_tcpconf_t tcpconf;
struct sockaddr_in *sinp;
sinp= (struct sockaddr_in *)address;
if (sinp->sin_family != AF_INET || address_len != sizeof(*sinp))
{
#if DEBUG
fprintf(stderr, "bind(tcp): sin_family = %d, len = %d\n",
sinp->sin_family, address_len);
#endif
errno= EAFNOSUPPORT;
return -1;
}
if (sinp->sin_addr.s_addr != INADDR_ANY &&
sinp->sin_addr.s_addr != tcpconfp->nwtc_locaddr)
{
errno= EADDRNOTAVAIL;
return -1;
}
tcpconf.nwtc_flags= 0;
if (sinp->sin_port == 0)
tcpconf.nwtc_flags |= NWTC_LP_SEL;
else
{
tcpconf.nwtc_flags |= NWTC_LP_SET;
tcpconf.nwtc_locport= sinp->sin_port;
}
r= ioctl(socket, NWIOSTCPCONF, &tcpconf);
return r;
}
static int _udp_bind(int socket, const struct sockaddr *address,
socklen_t address_len, nwio_udpopt_t *udpoptp)
{
int r;
unsigned long curr_flags;
nwio_udpopt_t udpopt;
struct sockaddr_in *sinp;
sinp= (struct sockaddr_in *)address;
if (sinp->sin_family != AF_INET || address_len != sizeof(*sinp))
{
#if DEBUG
fprintf(stderr, "bind(udp): sin_family = %d, len = %d\n",
sinp->sin_family, address_len);
#endif
errno= EAFNOSUPPORT;
return -1;
}
if (sinp->sin_addr.s_addr != INADDR_ANY &&
sinp->sin_addr.s_addr != udpoptp->nwuo_locaddr)
{
errno= EADDRNOTAVAIL;
return -1;
}
udpopt.nwuo_flags= 0;
if (sinp->sin_port == 0)
udpopt.nwuo_flags |= NWUO_LP_SEL;
else
{
udpopt.nwuo_flags |= NWUO_LP_SET;
udpopt.nwuo_locport= sinp->sin_port;
}
curr_flags= udpoptp->nwuo_flags;
if (!(curr_flags & NWUO_ACC_MASK))
udpopt.nwuo_flags |= NWUO_EXCL;
if (!(curr_flags & (NWUO_EN_LOC|NWUO_DI_LOC)))
udpopt.nwuo_flags |= NWUO_EN_LOC;
if (!(curr_flags & (NWUO_EN_BROAD|NWUO_DI_BROAD)))
udpopt.nwuo_flags |= NWUO_EN_BROAD;
if (!(curr_flags & (NWUO_RP_SET|NWUO_RP_ANY)))
udpopt.nwuo_flags |= NWUO_RP_ANY;
if (!(curr_flags & (NWUO_RA_SET|NWUO_RA_ANY)))
udpopt.nwuo_flags |= NWUO_RA_ANY;
if (!(curr_flags & (NWUO_RWDATONLY|NWUO_RWDATALL)))
udpopt.nwuo_flags |= NWUO_RWDATALL;
if (!(curr_flags & (NWUO_EN_IPOPT|NWUO_DI_IPOPT)))
udpopt.nwuo_flags |= NWUO_DI_IPOPT;
r= ioctl(socket, NWIOSUDPOPT, &udpopt);
return r;
}
static int _uds_bind(int socket, const struct sockaddr *address,
socklen_t address_len, struct sockaddr_un *uds_addr)
{
int r;
int did_mknod;
if (address == NULL) {
errno = EFAULT;
return -1;
}
did_mknod = 0;
r = mknod(((struct sockaddr_un *) address)->sun_path,
S_IFSOCK|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH, 0);
if (r == -1 && errno != EEXIST) {
return -1;
} else if (r == 0) {
did_mknod = 1;
}
/* perform the bind */
r= ioctl(socket, NWIOSUDSADDR, (void *) address);
if (r == -1 && did_mknod) {
/* bind() failed in pfs, so we roll back the
* file system change
*/
unlink(((struct sockaddr_un *) address)->sun_path);
}
return r;
}