389c959d6d
This patch introduces a new parser helper, parse_u64_with_suffix(), which has a better error handling, following all the parse_*() helpers to return non-zero value for errors. This new helper is going to replace parse_size_from_string(), which would directly call exit(1) to stop the whole program. Furthermore most callers of parse_size_from_string() are expecting exit(1) for error, so that they can skip the error handling. For those call sites, introduce a wrapper, arg_strtou64_with_suffix(), to do that. The only disadvantage is a little less detailed error report for why the parse failed, but for most cases the generic error string should be enough. Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef __BTRFS_STRING_UTILS_H__
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#define __BTRFS_STRING_UTILS_H__
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#include "kerncompat.h"
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int string_is_numerical(const char *str);
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int string_has_prefix(const char *str, const char *prefix);
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/*
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* Helpers prefixed by arg_* can exit if the argument is invalid and are supposed
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* to be used when parsing command line options where the immediate exit is valid
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* error handling.
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*/
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u64 arg_strtou64(const char *str);
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u64 arg_strtou64_with_suffix(const char *str);
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#endif
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