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authorNick Alcock <nick.alcock@oracle.com>2020-06-04 18:07:38 +0100
committerNick Alcock <nick.alcock@oracle.com>2020-07-22 18:02:18 +0100
commite148b73013109517c4d179aa9ae5a50b6d1dd5b5 (patch)
treef35a67a172a16852efc56d6d1fdbb586cf307dcc /libctf/ctf-error.c
parent1fa7a0c24e78e7f7995a3fa608c9f97a6ccbe1b6 (diff)
libctf: drop error-prone ctf_strerror
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.
Diffstat (limited to 'libctf/ctf-error.c')
-rw-r--r--libctf/ctf-error.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libctf/ctf-error.c b/libctf/ctf-error.c
index 84d14d59323..20971f4275b 100644
--- a/libctf/ctf-error.c
+++ b/libctf/ctf-error.c
@@ -19,6 +19,7 @@
#include <ctf-impl.h>
#include <stddef.h>
+#include <string.h>
/* This construct is due to Bruno Haible: much thanks. */
@@ -67,7 +68,7 @@ ctf_errmsg (int error)
if (error >= ECTF_BASE && (error - ECTF_BASE) < ECTF_NERR)
str = _ctf_errlist.str + _ctf_erridx[error - ECTF_BASE];
else
- str = ctf_strerror (error);
+ str = (const char *) strerror (error);
return (str ? str : "Unknown error");
}