diagnose too-large numbers better

Following on from commit v8.23-82-gaddae94, consistently diagnose
numbers that are too large, so as to distinguish from other errors,
and make the limits obvious.

* gl/modules/xdectoint: A new module implementing xdecto[iu]max(),
which handles the common case of parsing a bounded integer and
exiting with a diagnostic on error.
* gl/lib/xdectoimax.c: The signed variant.
* gl/lib/xdectoint.c: The parameterized implementation.
* gl/lib/xdectoint.h: The interface.
* gl/lib/xdectoumax.c: The unsigned variant.
* bootstrap.conf: Reference the new module.
* cfg.mk (exclude_file_name_regexp--sc_require_config_h_first):
Exclude the parameterized templates.
* src/csplit.c: Output EOVERFLOW or ERANGE errors if appropriate.
* src/fmt.c: Likewise.
* src/fold.c: Likewise.
* src/head.c: Likewise.
* src/ls.c: Likewise.
* src/nl.c: Likewise.
* src/nproc.c: Likewise.
* src/shred.c: Likewise.
* src/shuf.c: Likewise.
* src/stdbuf.c: Likewise.
* src/stty.c: Likewise.
* src/tail.c: Likewise.
* src/truncate.c: Likewise.
* src/split.c: Likewise.
* src/pr.c: Likewise.
* tests/pr/pr-tests.pl: Adjust to avoid matching errno diagnostic.
* tests/fmt/base.pl: Likewise.
* tests/split/l-chunk.sh: Likewise.
* tests/misc/shred-negative.sh: Likewise.
* tests/misc/tail.pl: Likewise.  Also remove the redundant
existing ERR_SUBST from test err-6.
* tests/ls/hex-option.sh: Check HEX/OCT options.
* tests/misc/shred-size.sh: Likewise.
* tests/misc/stty-row-col.sh: Likewise.

1 files changed, 36 insertions, 0 deletions

diff --git a/gl/lib/xdectoint.h b/gl/lib/xdectoint.h
new file mode 100644
index 000000000..770e18571
--- /dev/null
+++ b/gl/lib/xdectoint.h
@@ -0,0 +1,36 @@
+/* Convert decimal strings with bounds checking and exit on error.
+
+   Copyright (C) 2014 Free Software Foundation, Inc.
+
+   This program 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.
+
+   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 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 <http://www.gnu.org/licenses/>.  */
+
+#ifndef XDECTOINT_H_
+# define XDECTOINT_H_ 1
+
+# include <inttypes.h>
+
+# define _DECLARE_XDECTOINT(name, type) \
+  type name (const char *n_str, type min, type max, \
+             const char *suffixes, const char *err, int err_exit);
+# define _DECLARE_XNUMTOINT(name, type) \
+  type name (const char *n_str, int base, type min, type max, \
+             const char *suffixes, const char *err, int err_exit);
+
+_DECLARE_XDECTOINT (xdectoimax, intmax_t)
+_DECLARE_XDECTOINT (xdectoumax, uintmax_t)
+
+_DECLARE_XNUMTOINT (xnumtoimax, intmax_t)
+_DECLARE_XNUMTOINT (xnumtoumax, uintmax_t)
+
+#endif  /* not XDECTOINT_H_ */