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

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

View File

@ -142,7 +142,7 @@ pgtls_read(PGconn *conn, void *ptr, size_t len)
{
ssize_t n;
int result_errno = 0;
char sebuf[256];
char sebuf[PG_STRERROR_R_BUFLEN];
int err;
unsigned long ecode;
@ -272,7 +272,7 @@ pgtls_write(PGconn *conn, const void *ptr, size_t len)
{
ssize_t n;
int result_errno = 0;
char sebuf[256];
char sebuf[PG_STRERROR_R_BUFLEN];
int err;
unsigned long ecode;
@ -443,7 +443,7 @@ pgtls_get_peer_certificate_hash(PGconn *conn, size_t *len)
return cert_hash;
}
#endif /* HAVE_X509_GET_SIGNATURE_NID */
#endif /* HAVE_X509_GET_SIGNATURE_NID */
/* ------------------------------------------------------------ */
/* OpenSSL specific code */
@ -780,7 +780,7 @@ initialize_SSL(PGconn *conn)
struct stat buf;
char homedir[MAXPGPATH];
char fnbuf[MAXPGPATH];
char sebuf[256];
char sebuf[PG_STRERROR_R_BUFLEN];
bool have_homedir;
bool have_cert;
bool have_rootcert;
@ -941,7 +941,7 @@ initialize_SSL(PGconn *conn)
{
printfPQExpBuffer(&conn->errorMessage,
libpq_gettext("could not open certificate file \"%s\": %s\n"),
fnbuf, pqStrerror(errno, sebuf, sizeof(sebuf)));
fnbuf, strerror_r(errno, sebuf, sizeof(sebuf)));
SSL_CTX_free(SSL_context);
return -1;
}
@ -1212,7 +1212,7 @@ open_client_SSL(PGconn *conn)
case SSL_ERROR_SYSCALL:
{
char sebuf[256];
char sebuf[PG_STRERROR_R_BUFLEN];
if (r == -1)
printfPQExpBuffer(&conn->errorMessage,