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32 .Nd extract data from the elf auxiliary vector of the current process
38 .Fn elf_aux_info "int aux" "void *buf" "int buflen"
42 function retrieves the auxiliary info vector requested in
44 The information is stored into the provided buffer if it will fit.
45 The following values, defined in
47 can be requested (corresponding buffer sizes are specified in parenthesis):
48 .Bl -tag -width AT_OSRELDATE
50 The canary value for SSP (arbitrary sized buffer, as many bytes are
51 returned as it fits into it, rest is zeroed).
53 The path of executed program
55 This may not be present if the process was initialized by
57 and the namecache no longer contains the file's name.
59 CPU / hardware feature flags
62 CPU / hardware feature flags
70 of the kernel or jail the program is running on
73 Vector of page sizes (arbitrary sized buffer, as many elements of the
75 array are returned as it fits).
80 Pointer to VDSO timehands (for library internal use,
84 Returns zero on success, or an error number on failure.
88 An unknown item was requested.
90 The provided buffer was not the right size for the requested item.
92 The requested item is not available.
100 Only a small subset of available auxiliary info vector items are
101 accessible with this function.
102 Some items require a "right-sized" buffer while others just require a