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Move snd_is_local() to socket.c

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Move snd_is_local() to socket.c since it's used in control_shm, too.
This commit is contained in:
Takashi Iwai 2005-11-30 11:31:18 +00:00
parent d4dd7650f9
commit 79c3d0a1ef
2 changed files with 54 additions and 52 deletions
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51
src/pcm/pcm_shm.c
View file

@ -778,57 +778,6 @@ int snd_pcm_shm_open(snd_pcm_t **pcmp, const char *name,
return result; return result;
} }
#ifndef DOC_HIDDEN
int snd_is_local(struct hostent *hent)
{
int s;
int err;
struct ifconf conf;
size_t numreqs = 10;
size_t i;
struct in_addr *haddr = (struct in_addr*) hent->h_addr_list[0];
s = socket(PF_INET, SOCK_STREAM, 0);
if (s < 0) {
SYSERR("socket failed");
return -errno;
}
conf.ifc_len = numreqs * sizeof(struct ifreq);
conf.ifc_buf = malloc((unsigned int) conf.ifc_len);
if (! conf.ifc_buf)
return -ENOMEM;
while (1) {
err = ioctl(s, SIOCGIFCONF, &conf);
if (err < 0) {
SYSERR("SIOCGIFCONF failed");
return -errno;
}
if ((size_t)conf.ifc_len < numreqs * sizeof(struct ifreq))
break;
numreqs *= 2;
conf.ifc_len = numreqs * sizeof(struct ifreq);
conf.ifc_buf = realloc(conf.ifc_buf, (unsigned int) conf.ifc_len);
if (! conf.ifc_buf)
return -ENOMEM;
}
numreqs = conf.ifc_len / sizeof(struct ifreq);
for (i = 0; i < numreqs; ++i) {
struct ifreq *req = &conf.ifc_req[i];
struct sockaddr_in *s_in = (struct sockaddr_in *)&req->ifr_addr;
s_in->sin_family = AF_INET;
err = ioctl(s, SIOCGIFADDR, req);
if (err < 0)
continue;
if (haddr->s_addr == s_in->sin_addr.s_addr)
break;
}
close(s);
free(conf.ifc_buf);
return i < numreqs;
}
#endif
/*! \page pcm_plugins /*! \page pcm_plugins
\section pcm_plugins_shm Plugin: shm \section pcm_plugins_shm Plugin: shm

55
src/socket.c
View file

@ -1,5 +1,5 @@
/** /**
* \file pcm/socket.c * \file socket.c
* \brief Socket helper routines * \brief Socket helper routines
* \author Abramo Bagnara <abramo@alsa-project.org> * \author Abramo Bagnara <abramo@alsa-project.org>
* \date 2003 * \date 2003
@ -33,6 +33,10 @@
#include <sys/socket.h> #include <sys/socket.h>
#include <sys/uio.h> #include <sys/uio.h>
#include <sys/un.h> #include <sys/un.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netdb.h>
#include "local.h" #include "local.h"
#ifndef DOC_HIDDEN #ifndef DOC_HIDDEN
@ -102,4 +106,53 @@ int snd_receive_fd(int sock, void *data, size_t len, int *fd)
*fd = *fds; *fd = *fds;
return ret; return ret;
} }
int snd_is_local(struct hostent *hent)
{
int s;
int err;
struct ifconf conf;
size_t numreqs = 10;
size_t i;
struct in_addr *haddr = (struct in_addr*) hent->h_addr_list[0];
s = socket(PF_INET, SOCK_STREAM, 0);
if (s < 0) {
SYSERR("socket failed");
return -errno;
}
conf.ifc_len = numreqs * sizeof(struct ifreq);
conf.ifc_buf = malloc((unsigned int) conf.ifc_len);
if (! conf.ifc_buf)
return -ENOMEM;
while (1) {
err = ioctl(s, SIOCGIFCONF, &conf);
if (err < 0) {
SYSERR("SIOCGIFCONF failed");
return -errno;
}
if ((size_t)conf.ifc_len < numreqs * sizeof(struct ifreq))
break;
numreqs *= 2;
conf.ifc_len = numreqs * sizeof(struct ifreq);
conf.ifc_buf = realloc(conf.ifc_buf, (unsigned int) conf.ifc_len);
if (! conf.ifc_buf)
return -ENOMEM;
}
numreqs = conf.ifc_len / sizeof(struct ifreq);
for (i = 0; i < numreqs; ++i) {
struct ifreq *req = &conf.ifc_req[i];
struct sockaddr_in *s_in = (struct sockaddr_in *)&req->ifr_addr;
s_in->sin_family = AF_INET;
err = ioctl(s, SIOCGIFADDR, req);
if (err < 0)
continue;
if (haddr->s_addr == s_in->sin_addr.s_addr)
break;
}
close(s);
free(conf.ifc_buf);
return i < numreqs;
}
#endif #endif