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/* ISC license. */
#include <skalibs/nonposix.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <string.h>
#include <skalibs/error.h>
#include <skalibs/webipc.h>
ssize_t ipc_recv (int fd, char *s, size_t len, char *path)
{
struct sockaddr_un sa = { .sun_family = AF_UNIX } ;
socklen_t total = sizeof sa ;
char tmp[len] ;
ssize_t r ;
do r = recvfrom(fd, tmp, len, 0, (struct sockaddr *)&sa, &total) ;
while ((r == -1) && (errno == EINTR)) ;
if (r < 0) return r ;
if (sa.sun_family != AF_UNIX) return (errno = EPROTO, -1) ;
if (path)
{
if (total == sizeof(sa_family_t)) path[0] = 0 ;
else
{
size_t l = strlen(sa.sun_path) ;
if (l > IPCPATH_MAX) return (errno = EPROTO, -1) ;
memcpy(path, sa.sun_path, l+1) ;
}
}
memcpy(s, tmp, r) ;
return r ;
}
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