This is the source for libcap-1.0.tar.gz

http://www.kernel.org/pub/linux/libs/security/linux-privs/kernel-2.2/libcap-1.0.tar.gz

1 files changed, 90 insertions, 0 deletions

diff --git a/libcap/cap_alloc.c b/libcap/cap_alloc.c
new file mode 100644
index 0000000..3d9e7ab
--- /dev/null
+++ b/libcap/cap_alloc.c
@@ -0,0 +1,90 @@
+/*
+ * $Id: cap_alloc.c,v 1.3 1998/05/24 22:54:09 morgan Exp $
+ *
+ * Copyright (c) 1997-8 Andrew G Morgan <morgan@linux.kernel.org>
+ *
+ * See end of file for Log.
+ *
+ * This file deals with allocation and deallocation of internal
+ * capability sets as specified by POSIX.1e (formerlly, POSIX 6).
+ */
+
+#include "libcap.h"
+
+/*
+ * This function duplicates an internal capability set (x3) with
+ * malloc()'d memory. It is the responsibility of the user to call
+ * cap_free() to liberate it.
+ */
+
+cap_t cap_dup(cap_t cap_d)
+{
+    cap_t result;
+
+    if (!good_cap_t(cap_d)) {
+	_cap_debug("bad argument");
+	errno = EINVAL;
+	return NULL;
+    }
+
+    result = (cap_t) malloc( sizeof(*cap_d) );
+    if (result == NULL) {
+	_cap_debug("out of memory");
+	errno = ENOMEM;
+	return NULL;
+    }
+
+    memcpy(result, cap_d, sizeof(*cap_d));
+
+    return result;
+}
+
+
+/*
+ * Scrub and then liberate an internal capability set.
+ */
+
+int cap_free(cap_t *cap_d_p)
+{
+    if ( cap_d_p && good_cap_t(*cap_d_p) ) {
+	memset(*cap_d_p, 0, sizeof(**cap_d_p));
+	free(*cap_d_p);
+	*cap_d_p = NULL;
+
+	return 0;
+    } else {
+	_cap_debug("no capability to liberate");
+	errno = EINVAL;
+	return -1;
+    }
+}
+
+/*
+ * Obtain a blank set of capabilities
+ */
+
+cap_t cap_init(void)
+{
+    cap_t result = (cap_t) calloc( 1, sizeof(*result) );
+
+    if (result) {
+	result->magic = CAP_T_MAGIC;
+	result->head.version = _LINUX_CAPABILITY_VERSION;
+    } else {
+	errno = ENOMEM;
+    }
+    return result;
+}
+
+/*
+ * $Log: cap_alloc.c,v $
+ * Revision 1.3  1998/05/24 22:54:09  morgan
+ * updated for 2.1.104
+ *
+ * Revision 1.2  1997/04/28 00:57:11  morgan
+ * fixes and zefram's patches
+ *
+ * Revision 1.1  1997/04/21 04:32:52  morgan
+ * Initial revision
+ *
+ */