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authorPatrick McDermott <patrick.mcdermott@libiquity.com>2023-07-06 12:29:35 (EDT)
committer Patrick McDermott <patrick.mcdermott@libiquity.com>2023-07-06 12:38:09 (EDT)
commit351fc50f385f6b6cac0571355b910377bd077781 (patch)
treeb309303c9be9bd6c691f762b3f01d782665dac9a /common
parent2615b187c5e446bcba965f21def342e313656201 (diff)
mknod: Factor out error functions into common code
Diffstat (limited to 'common')
-rw-r--r--common/error.c57
-rw-r--r--common/error.h32
2 files changed, 89 insertions, 0 deletions
diff --git a/common/error.c b/common/error.c
new file mode 100644
index 0000000..7b46826
--- /dev/null
+++ b/common/error.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2023 Patrick McDermott
+ *
+ * This file is part of opkg-opk.
+ *
+ * opkg-opk is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * opkg-opk 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 a copy of the GNU General Public License
+ * along with opkg-opk. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "error.h"
+
+static const char *_opkg_opk_program_name;
+
+void
+opkg_opk_set_program_name(const char *program_name)
+{
+ _opkg_opk_program_name = program_name;
+}
+
+void __attribute__((format(__printf__, 1, 2)))
+opkg_opk_error(const char *fmt, ...)
+{
+ va_list ap;
+
+ fprintf(stderr, "%s: ", _opkg_opk_program_name);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+}
+
+void __attribute__((format(__printf__, 1, 2)))
+opkg_opk_errno(const char *fmt, ...)
+{
+ va_list ap;
+
+ fprintf(stderr, "%s: ", _opkg_opk_program_name);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fprintf(stderr, ": %s\n", strerror(errno));
+}
diff --git a/common/error.h b/common/error.h
new file mode 100644
index 0000000..3654696
--- /dev/null
+++ b/common/error.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2023 Patrick McDermott
+ *
+ * This file is part of opkg-opk.
+ *
+ * opkg-opk is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * opkg-opk 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 a copy of the GNU General Public License
+ * along with opkg-opk. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef OPKG_OPK_ERROR_H_
+#define OPKG_OPK_ERROR_H_
+
+void
+opkg_opk_set_program_name(const char *program_name);
+
+void __attribute__((format(__printf__, 1, 2)))
+opkg_opk_error(const char *fmt, ...);
+
+void __attribute__((format(__printf__, 1, 2)))
+opkg_opk_errno(const char *fmt, ...);
+
+#endif /* OPKG_OPK_ERROR_H_ */