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libctf: error out on corrupt CTF with invalid header flags

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If corrupt CTF with invalid header flags is passed in, return the new
error ECTF_FLAGS.

include/
	* ctf-api.h (ECTF_FLAGS): New.
	(ECTF_NERR): Adjust.
	* ctf.h (CTF_F_MAX): New.
libctf/
	* ctf-open.c (ctf_bufopen_internal): Diagnose invalid flags.
This commit is contained in:
Nick Alcock 2020-06-03 17:31:44 +01:00
parent 67d4cc671b
commit ec388c16cd
5 changed files with 18 additions and 3 deletions
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5
include/ctf-api.h
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@ -207,10 +207,11 @@ enum
ECTF_NONREPRESENTABLE, /* Type not representable in CTF. */
ECTF_NEXT_END, /* End of iteration. */
ECTF_NEXT_WRONGFUN, /* Wrong iteration function called. */
ECTF_NEXT_WRONGFP /* Iteration entity changed in mid-iterate. */
ECTF_NEXT_WRONGFP, /* Iteration entity changed in mid-iterate. */
ECTF_FLAGS /* CTF header contains flags unknown to libctf. */
};
#define ECTF_NERR (ECTF_NEXT_WRONGFP - ECTF_BASE + 1) /* Count of CTF errors. */
#define ECTF_NERR (ECTF_FLAGS - ECTF_BASE + 1) /* Count of CTF errors. */
/* The CTF data model is inferred to be the caller's data model or the data
model of the given object, unless ctf_setmodel() is explicitly called. */