Alejandro Colomar
4a2646f676
These functions reject negative numbers, instead of silently converting them into unsigned, which strtou[l]l(3) do. Reviewed-by: Iker Pedrosa <ipedrosa@redhat.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Signed-off-by: Alejandro Colomar <alx@kernel.org>
48 lines
962 B
C
48 lines
962 B
C
// SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org>
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// SPDX-License-Identifier: BSD-3-Clause
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#ifndef SHADOW_INCLUDE_LIB_ATOI_STRTOU_NONEG_H_
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#define SHADOW_INCLUDE_LIB_ATOI_STRTOU_NONEG_H_
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#include <config.h>
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#include <errno.h>
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#include <stdlib.h>
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#include "attr.h"
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ATTR_STRING(1) ATTR_ACCESS(write_only, 2)
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inline unsigned long strtoul_noneg(const char *s,
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char **restrict endp, int base);
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ATTR_STRING(1) ATTR_ACCESS(write_only, 2)
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inline unsigned long long strtoull_noneg(const char *s,
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char **restrict endp, int base);
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inline unsigned long
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strtoul_noneg(const char *s, char **restrict endp, int base)
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{
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if (strtol(s, endp, base) < 0) {
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errno = ERANGE;
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return 0;
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}
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return strtoul(s, endp, base);
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}
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inline unsigned long long
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strtoull_noneg(const char *s, char **restrict endp, int base)
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{
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if (strtol(s, endp, base) < 0) {
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errno = ERANGE;
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return 0;
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}
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return strtoull(s, endp, base);
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}
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#endif // include guard
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