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libctf: drop error-prone ctf_strerror

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This utility function is almost useless (all it does is casts the result
of a strerror) but has a seriously confusing name.  Over and over again
I have accidentally called it instead of ctf_errmsg, and hidden a
time-bomb for myself in a hard-to-test error-handling path: since
ctf_strerror is just a strerror wrapper, it cannot handle CTF errnos,
unlike ctf_errmsg.  It's astonishingly lucky that none of these errors
have crept into any commits to date.

Fuse it into ctf_errmsg and drop it.

libctf/
	* ctf-impl.h (ctf_strerror): Delete.
	* ctf-subr.c (ctf_strerror): Likewise.
	* ctf-error.c (ctf_errmsg): Stop using ctf_strerror: just use
	strerror directly.
This commit is contained in:
Nick Alcock
2020-06-04 18:07:38 +01:00
parent 1fa7a0c24e
commit e148b73013
4 changed files with 9 additions and 8 deletions
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libctf/ctf-impl.h
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@ -548,7 +548,6 @@ extern ssize_t ctf_pread (int fd, void *buf, ssize_t count, off_t offset);
extern void *ctf_realloc (ctf_file_t *, void *, size_t);
extern char *ctf_str_append (char *, const char *);
extern char *ctf_str_append_noerr (char *, const char *);
extern const char *ctf_strerror (int);
extern ctf_id_t ctf_type_resolve_unsliced (ctf_file_t *, ctf_id_t);
extern int ctf_type_kind_unsliced (ctf_file_t *, ctf_id_t);