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Incorporate strerror_r() into src/port/snprintf.c, too.

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This provides the features that used to exist in useful_strerror()
for users of strerror_r(), too.  Also, standardize on the GNU convention
that strerror_r returns a char pointer that may not be NULL.

I notice that libpq's win32.c contains a variant version of strerror_r
that probably ought to be folded into strerror.c.  But lacking a
Windows environment, I should leave that to somebody else.

Discussion: https://postgr.es/m/2975.1526862605@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2018-09-26 12:35:57 -04:00
parent 26e9d4d4ef
commit 758ce9b779
11 changed files with 99 additions and 83 deletions
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2
src/interfaces/libpq/fe-misc.c
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@ -1071,7 +1071,7 @@ pqSocketCheck(PGconn *conn, int forRead, int forWrite, time_t end_time)
if (result < 0)
{
char sebuf[256];
char sebuf[PG_STRERROR_R_BUFLEN];
printfPQExpBuffer(&conn->errorMessage,
libpq_gettext("select() failed: %s\n"),