2021-09-06 Dmitry V. Levin <ldv@altlinux.org>
+ * xasprintf.c: New file.
+ * Makefile.am (libeu_a_SOURCES): Add it.
+ * libeu.h (xasprintf): New prototype.
+
* dynamicsizehash.c (INIT(NAME)): Remove cast of calloc return value.
* dynamicsizehash_concurrent.c (INIT(NAME)): Remove cast of malloc
return value.
extern char *xstrdup (const char *) __attribute__ ((__malloc__));
extern char *xstrndup (const char *, size_t) __attribute__ ((__malloc__));
+extern char *xasprintf(const char *fmt, ...)
+ __attribute__ ((format (printf, 1, 2))) __attribute__ ((__malloc__));
extern uint32_t crc32 (uint32_t crc, unsigned char *buf, size_t len);
extern int crc32_file (int fd, uint32_t *resp);
--- /dev/null
+/* A wrapper around vasprintf that dies in case of an error.
+ Copyright (c) 2021 Dmitry V. Levin <ldv@altlinux.org>
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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
+ General Public License for more details.
+
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <libintl.h>
+#include "libeu.h"
+#include "system.h"
+
+char *
+xasprintf (const char *fmt, ...)
+{
+ char *res;
+ va_list ap;
+
+ va_start (ap, fmt);
+ if (unlikely (vasprintf (&res, fmt, ap) < 0))
+ error (EXIT_FAILURE, 0, _("memory exhausted"));
+ va_end(ap);
+
+ return res;
+}