From 20e2dec14954568848ad74e73aee9b3aeedd6584 Mon Sep 17 00:00:00 2001 From: "Daniel P. Berrange" Date: Wed, 9 Mar 2016 17:28:24 +0000 Subject: error: ensure errno detail is printed with error_abort When &error_abort is passed in, the error reporting code will print the current error message and then abort() the process. Unfortunately at the time it aborts, we've not yet appended the errno detail. This makes debugging certain problems significantly harder as the log is incomplete. Signed-off-by: Daniel P. Berrange Message-Id: <1457544504-8548-22-git-send-email-berrange@redhat.com> Signed-off-by: Markus Armbruster --- util/error.c | 40 +++++++++++++++++++--------------------- 1 file changed, 19 insertions(+), 21 deletions(-) (limited to 'util') diff --git a/util/error.c b/util/error.c index 471b8b3..47f93af 100644 --- a/util/error.c +++ b/util/error.c @@ -44,7 +44,8 @@ static void error_handle_fatal(Error **errp, Error *err) static void error_setv(Error **errp, const char *src, int line, const char *func, - ErrorClass err_class, const char *fmt, va_list ap) + ErrorClass err_class, const char *fmt, va_list ap, + const char *suffix) { Error *err; int saved_errno = errno; @@ -56,6 +57,11 @@ static void error_setv(Error **errp, err = g_malloc0(sizeof(*err)); err->msg = g_strdup_vprintf(fmt, ap); + if (suffix) { + char *msg = err->msg; + err->msg = g_strdup_printf("%s: %s", msg, suffix); + g_free(msg); + } err->err_class = err_class; err->src = src; err->line = line; @@ -74,7 +80,7 @@ void error_set_internal(Error **errp, va_list ap; va_start(ap, fmt); - error_setv(errp, src, line, func, err_class, fmt, ap); + error_setv(errp, src, line, func, err_class, fmt, ap, NULL); va_end(ap); } @@ -85,7 +91,7 @@ void error_setg_internal(Error **errp, va_list ap; va_start(ap, fmt); - error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap); + error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap, NULL); va_end(ap); } @@ -94,7 +100,6 @@ void error_setg_errno_internal(Error **errp, int os_errno, const char *fmt, ...) { va_list ap; - char *msg; int saved_errno = errno; if (errp == NULL) { @@ -102,15 +107,10 @@ void error_setg_errno_internal(Error **errp, } va_start(ap, fmt); - error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap); + error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap, + os_errno != 0 ? strerror(os_errno) : NULL); va_end(ap); - if (os_errno != 0) { - msg = (*errp)->msg; - (*errp)->msg = g_strdup_printf("%s: %s", msg, strerror(os_errno)); - g_free(msg); - } - errno = saved_errno; } @@ -174,24 +174,22 @@ void error_setg_win32_internal(Error **errp, int win32_err, const char *fmt, ...) { va_list ap; - char *msg1, *msg2; + char *suffix = NULL; if (errp == NULL) { return; } + if (win32_err != 0) { + suffix = g_win32_error_message(win32_err); + } + va_start(ap, fmt); - error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, fmt, ap); + error_setv(errp, src, line, func, ERROR_CLASS_GENERIC_ERROR, + fmt, ap, suffix); va_end(ap); - if (win32_err != 0) { - msg1 = (*errp)->msg; - msg2 = g_win32_error_message(win32_err); - (*errp)->msg = g_strdup_printf("%s: %s (error: %x)", msg1, msg2, - (unsigned)win32_err); - g_free(msg2); - g_free(msg1); - } + g_free(suffix); } #endif -- cgit v1.1