diff options
Diffstat (limited to 'doc/cap_copy_ext.3')
| -rw-r--r-- | doc/cap_copy_ext.3 | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/doc/cap_copy_ext.3 b/doc/cap_copy_ext.3 index 0965ad1..b863442 100644 --- a/doc/cap_copy_ext.3 +++ b/doc/cap_copy_ext.3 @@ -9,6 +9,7 @@ external representation translation ssize_t cap_size(cap_t cap_p); ssize_t cap_copy_ext(void *ext_p, cap_t cap_p, ssize_t size); cap_t cap_copy_int(const void * ext_p); +cap_t cap_copy_int_check(const void *cap_ext, ssize_t length); .fi .sp Link with \fI\-lcap\fP. @@ -56,9 +57,9 @@ state. The function initializes the capability state and then copies the capability state from the record pointed to by .I ext_p into the capability state, converting, if necessary, the data from a -contiguous, persistent format to an undefined, internal format. Once -copied into internal format, the object can be manipulated by the capability -state manipulation functions (see +contiguous, persistent format to an opaque, internal format. Once +copied into internal format, the object can be manipulated by the +capability state manipulation functions (see .BR cap_clear (3)). Note that the record pointed to by .I ext_p @@ -71,6 +72,12 @@ longer required, by calling with the .I cap_t as an argument. +.PP +.BR cap_copy_int_check () +performs the same operation as +.BR cap_copy_int () +but additionally checks that the provided external data's size is not +larger than the noted length. .SH "RETURN VALUE" .BR cap_size () returns the length required to hold a capability data record on success, @@ -82,8 +89,10 @@ returns the number of bytes placed in the user managed space pointed to by on success, and \-1 on failure. .PP .BR cap_copy_int () -returns a pointer to the newly created capability state in working storage -on success, and NULL on failure. +and +.BR cap_copy_int_check () +return a pointer to the newly created capability state in working +storage on success, and NULL on failure. .PP On failure, .BR errno |