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-rw-r--r--src/lzma/error.c156
1 files changed, 156 insertions, 0 deletions
diff --git a/src/lzma/error.c b/src/lzma/error.c
new file mode 100644
index 00000000..a83de27a
--- /dev/null
+++ b/src/lzma/error.c
@@ -0,0 +1,156 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file error.c
+/// \brief Error message printing
+//
+// Copyright (C) 2007 Lasse Collin
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "private.h"
+#include <stdarg.h>
+
+
+exit_status_type exit_status = SUCCESS;
+verbosity_type verbosity = V_WARNING;
+char *argv0 = NULL;
+volatile sig_atomic_t user_abort = 0;
+
+
+extern const char *
+str_strm_error(lzma_ret code)
+{
+ switch (code) {
+ case LZMA_OK:
+ return _("Operation successful");
+
+ case LZMA_STREAM_END:
+ return _("Operation finished successfully");
+
+ case LZMA_PROG_ERROR:
+ return _("Internal error (bug)");
+
+ case LZMA_DATA_ERROR:
+ return _("Compressed data is corrupt");
+
+ case LZMA_MEM_ERROR:
+ return strerror(ENOMEM);
+
+ case LZMA_BUF_ERROR:
+ return _("Unexpected end of input");
+
+ case LZMA_HEADER_ERROR:
+ return _("Unsupported options");
+
+ case LZMA_UNSUPPORTED_CHECK:
+ return _("Unsupported integrity check type");
+
+ default:
+ return NULL;
+ }
+}
+
+
+extern void
+set_exit_status(exit_status_type new_status)
+{
+ static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+ pthread_mutex_lock(&mutex);
+
+ if (new_status != WARNING || exit_status == SUCCESS)
+ exit_status = new_status;
+
+ pthread_mutex_unlock(&mutex);
+ return;
+}
+
+
+extern void lzma_attribute((noreturn))
+my_exit(int status)
+{
+ // Close stdout. If something goes wrong, print an error message
+ // to stderr.
+ {
+ const int ferror_err = ferror(stdout);
+ const int fclose_err = fclose(stdout);
+ if (fclose_err) {
+ errmsg(V_ERROR, _("Writing to standard output "
+ "failed: %s"), strerror(errno));
+ status = ERROR;
+ } else if (ferror_err) {
+ // Some error has occurred but we have no clue about
+ // the reason since fclose() succeeded.
+ errmsg(V_ERROR, _("Writing to standard output "
+ "failed: %s"), "Unknown error");
+ status = ERROR;
+ }
+ }
+
+ // Close stderr. If something goes wrong, there's nothing where we
+ // could print an error message. Just set the exit status.
+ {
+ const int ferror_err = ferror(stderr);
+ const int fclose_err = fclose(stderr);
+ if (fclose_err || ferror_err)
+ status = ERROR;
+ }
+
+ exit(status);
+}
+
+
+extern void lzma_attribute((format(printf, 2, 3)))
+errmsg(verbosity_type v, const char *fmt, ...)
+{
+ va_list ap;
+
+ if (v <= verbosity) {
+ va_start(ap, fmt);
+
+ static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+ pthread_mutex_lock(&mutex);
+
+ fprintf(stderr, "%s: ", argv0);
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n");
+
+ pthread_mutex_unlock(&mutex);
+
+ va_end(ap);
+ }
+
+ if (v == V_ERROR)
+ set_exit_status(ERROR);
+ else if (v == V_WARNING)
+ set_exit_status(WARNING);
+
+ return;
+}
+
+
+extern void
+out_of_memory(void)
+{
+ errmsg(V_ERROR, "%s", strerror(ENOMEM));
+ user_abort = 1;
+ return;
+}
+
+
+extern void
+internal_error(void)
+{
+ errmsg(V_ERROR, _("Internal error (bug)"));
+ user_abort = 1;
+ return;
+}