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| #include <unistd.h>
| #include <fcntl.h>
| #include <string.h>
| #include <stdlib.h>
| #include <errno.h>
| #include <sys/socket.h>
| #include "selinux_internal.h"
| #include "policy.h"
|
| #ifndef SO_PEERSEC
| #define SO_PEERSEC 31
| #endif
|
| int getpeercon_raw(int fd, char ** context)
| {
| char *buf;
| socklen_t size;
| ssize_t ret;
|
| size = INITCONTEXTLEN + 1;
| buf = malloc(size);
| if (!buf)
| return -1;
| memset(buf, 0, size);
|
| ret = getsockopt(fd, SOL_SOCKET, SO_PEERSEC, buf, &size);
| if (ret < 0 && errno == ERANGE) {
| char *newbuf;
|
| newbuf = realloc(buf, size);
| if (!newbuf)
| goto out;
|
| buf = newbuf;
| memset(buf, 0, size);
| ret = getsockopt(fd, SOL_SOCKET, SO_PEERSEC, buf, &size);
| }
| out:
| if (ret < 0)
| free(buf);
| else
| *context = buf;
| return ret;
| }
|
| hidden_def(getpeercon_raw)
|
| int getpeercon(int fd, char ** context)
| {
| int ret;
| char * rcontext;
|
| ret = getpeercon_raw(fd, &rcontext);
|
| if (!ret) {
| ret = selinux_raw_to_trans_context(rcontext, context);
| freecon(rcontext);
| }
|
| return ret;
| }
|
|
