67 lines
1.2 KiB
C
67 lines
1.2 KiB
C
#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include "selinux_internal.h"
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#include <stdlib.h>
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#include <errno.h>
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#include <sys/xattr.h>
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#include "policy.h"
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int getfilecon_raw(const char *path, security_context_t *context)
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{
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char *buf;
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ssize_t size;
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ssize_t ret;
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size = INITCONTEXTLEN+1;
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buf = malloc(size);
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if (!buf)
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return -1;
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memset(buf, 0, size);
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ret = getxattr(path, XATTR_NAME_SELINUX, buf, size-1);
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if (ret < 0 && errno == ERANGE) {
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char *newbuf;
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size = getxattr(path, XATTR_NAME_SELINUX, NULL, 0);
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if (size < 0)
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goto out;
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size++;
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newbuf = realloc(buf, size);
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if (!newbuf)
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goto out;
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buf = newbuf;
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memset(buf, 0, size);
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ret = getxattr(path, XATTR_NAME_SELINUX, buf, size-1);
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}
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out:
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if (ret < 0)
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free(buf);
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else
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*context = buf;
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return ret;
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}
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hidden_def(getfilecon_raw)
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int getfilecon(const char *path, security_context_t *context)
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{
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int ret;
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security_context_t rcontext;
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ret = getfilecon_raw(path, &rcontext);
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if (context_translations && ret > 0) {
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if (raw_to_trans_context(rcontext, context)) {
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*context = NULL;
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ret = -1;
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}
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freecon(rcontext);
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} else if (ret > 0)
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*context = rcontext;
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return ret;
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}
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hidden_def(getfilecon)
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