1 files changed, 58 insertions, 0 deletions
diff --git a/lib/dpkg/utils.c b/lib/dpkg/utils.c
new file mode 100644
index 0000000..363624c
--- /dev/null
+++ b/lib/dpkg/utils.c
@@ -0,0 +1,58 @@
+/*
+ * libdpkg - Debian packaging suite library routines
+ * utils.c - helper functions for dpkg
+ *
+ * Copyright © 1995, 2008 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ *
+ * This 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <string.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+
+int
+fgets_checked(char *buf, size_t bufsz, FILE *f, const char *fn)
+{
+	int l;
+
+	if (!fgets(buf, bufsz, f)) {
+		if (ferror(f))
+			ohshite(_("read error in '%.250s'"), fn);
+		return -1;
+	}
+	l = strlen(buf);
+	if (l == 0)
+		ohshit(_("fgets gave an empty string from '%.250s'"), fn);
+	if (buf[--l] != '\n')
+		ohshit(_("too-long line or missing newline in '%.250s'"), fn);
+	buf[l] = '\0';
+
+	return l;
+}
+
+int
+fgets_must(char *buf, size_t bufsz, FILE *f, const char *fn)
+{
+	int l = fgets_checked(buf, bufsz, f, fn);
+
+	if (l < 0)
+		ohshit(_("unexpected end of file reading '%.250s'"), fn);
+
+	return l;
+}