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4caef86ca6
1999-01-23 Ulrich Drepper <drepper@cygnus.com> * nss/nss_files/files-XXX.c (internal_getent): Make sure the buffer has at least two bytes (not one). Correct buflen parameter type. * nss/nss_files/files-alias.c (get_next_alias): Make sure buffer has at least two bytes. Use fgets_unlocked instead of fgets. * ctype/ctype.h: Don't user __tolower directly for tolower implementation. Use inline function which tests for the range first. Make _tolower equivalent to old tolower macros. Likewise for toupper. * ctype/ctype.c: Change tolower/toupper definition accordingly. * argp/argp-help.c: Use _tolower instead of tolower if possible. * inet/ether_aton_r.c: Likewise. * inet/ether_line.c: Likewise. * inet/rcmd.c: Likewise. * intl/l10nflist.c: Likewise. * locale/programs/ld-collate.c: Likewise. * locale/programs/linereader.c: Likewise. * locale/programs/localedef.c: Likewise. * nis/nss_nis/nis-alias.c: Likewise. * nis/nss_nis/nis-network.c: Likewise. * posix/regex.c: Likewise. * resolv/inet_net_pton.c: Likewise. * stdio-common/printf_fp.c: Likewise. * stdio-common/vfscanf.c: Likewise. * sysdeps/generic/strcasestr.c: Likewise. * math/bits/mathcalls.h: Fix typo.
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <ctype.h>
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#include <stdlib.h>
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#include <netinet/ether.h>
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#include <netinet/if_ether.h>
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struct ether_addr *
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ether_aton_r (const char *asc, struct ether_addr *addr)
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{
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size_t cnt;
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for (cnt = 0; cnt < 6; ++cnt)
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{
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unsigned int number;
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char ch;
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ch = _tolower (*asc++);
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if ((ch < '0' || ch > '9') && (ch < 'a' || ch > 'f'))
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return NULL;
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number = isdigit (ch) ? (ch - '0') : (ch - 'a' + 10);
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ch = _tolower (*asc);
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if ((cnt < 5 && ch != ':') || (cnt == 5 && ch != '\0' && !isspace (ch)))
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{
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++asc;
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if ((ch < '0' || ch > '9') && (ch < 'a' || ch > 'f'))
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return NULL;
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number <<= 4;
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number += isdigit (ch) ? (ch - '0') : (ch - 'a' + 10);
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ch = *asc;
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if (cnt < 5 && ch != ':')
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return NULL;
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}
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/* Store result. */
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addr->ether_addr_octet[cnt] = (unsigned char) number;
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/* Skip ':'. */
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++asc;
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}
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return addr;
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}
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