diff options
Diffstat (limited to 'string')
| -rw-r--r-- | string/_strerror.c | 67 | ||||
| -rw-r--r-- | string/bcopy.c | 29 | ||||
| -rw-r--r-- | string/bzero.c | 83 |
3 files changed, 179 insertions, 0 deletions
diff --git a/string/_strerror.c b/string/_strerror.c new file mode 100644 index 0000000000..f6f16ff2af --- /dev/null +++ b/string/_strerror.c @@ -0,0 +1,67 @@ +/* Copyright (C) 1991,93,95,96,97,98,2000,2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <libintl.h> +#include <stdio.h> +#include <string.h> +#include <sys/param.h> +#include <stdio-common/_itoa.h> + +/* It is critical here that we always use the `dcgettext' function for + the message translation. Since <libintl.h> only defines the macro + `dgettext' to use `dcgettext' for optimizing programs this is not + always guaranteed. */ +#ifndef dgettext +# include <locale.h> /* We need LC_MESSAGES. */ +# define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES) +#endif + +/* Return a string describing the errno code in ERRNUM. */ +char * +__strerror_r (int errnum, char *buf, size_t buflen) +{ + if (errnum < 0 || errnum >= _sys_nerr_internal + || _sys_errlist_internal[errnum] == NULL) + { + /* Buffer we use to print the number in. For a maximum size for + `int' of 8 bytes we never need more than 20 digits. */ + char numbuf[21]; + const char *unk = _("Unknown error "); + const size_t unklen = strlen (unk); + char *p, *q; + + numbuf[20] = '\0'; + p = _itoa_word (errnum, &numbuf[20], 10, 0); + + /* Now construct the result while taking care for the destination + buffer size. */ + q = __mempcpy (buf, unk, MIN (unklen, buflen)); + if (unklen < buflen) + memcpy (q, p, MIN ((size_t) (&numbuf[21] - p), buflen - unklen)); + + /* Terminate the string in any case. */ + if (buflen > 0) + buf[buflen - 1] = '\0'; + + return buf; + } + + return (char *) _(_sys_errlist_internal[errnum]); +} +weak_alias (__strerror_r, strerror_r) +libc_hidden_def (__strerror_r) diff --git a/string/bcopy.c b/string/bcopy.c new file mode 100644 index 0000000000..3f16b884ac --- /dev/null +++ b/string/bcopy.c @@ -0,0 +1,29 @@ +/* Copyright (C) 1991, 1992, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <string.h> + +#define memmove bcopy +#define rettype void +#define RETURN(s) return +#define a1 src +#define a1const const +#define a2 dest +#define a2const + +#include <memmove.c> diff --git a/string/bzero.c b/string/bzero.c new file mode 100644 index 0000000000..c6ede14139 --- /dev/null +++ b/string/bzero.c @@ -0,0 +1,83 @@ +/* Copyright (C) 1991, 1997, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Torbjorn Granlund (tege@sics.se). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <string.h> +#include <memcopy.h> + +#undef __bzero + +/* Set N bytes of S to 0. */ +void +__bzero (s, len) + void *s; + size_t len; +{ + long int dstp = (long int) s; + const op_t zero = 0; + + if (len >= 8) + { + size_t xlen; + + /* There are at least some bytes to zero. No need to test + for LEN == 0 in this alignment loop. */ + while (dstp % OPSIZ != 0) + { + ((byte *) dstp)[0] = 0; + dstp += 1; + len -= 1; + } + + /* Write 8 op_t per iteration until less than 8 op_t remain. */ + xlen = len / (OPSIZ * 8); + while (xlen != 0) + { + ((op_t *) dstp)[0] = zero; + ((op_t *) dstp)[1] = zero; + ((op_t *) dstp)[2] = zero; + ((op_t *) dstp)[3] = zero; + ((op_t *) dstp)[4] = zero; + ((op_t *) dstp)[5] = zero; + ((op_t *) dstp)[6] = zero; + ((op_t *) dstp)[7] = zero; + dstp += 8 * OPSIZ; + xlen -= 1; + } + len %= OPSIZ * 8; + + /* Write 1 op_t per iteration until less than op_t remain. */ + xlen = len / OPSIZ; + while (xlen != 0) + { + ((op_t *) dstp)[0] = zero; + dstp += OPSIZ; + xlen -= 1; + } + len %= OPSIZ; + } + + /* Write the last few bytes. */ + while (len != 0) + { + ((byte *) dstp)[0] = 0; + dstp += 1; + len -= 1; + } +} +weak_alias (__bzero, bzero) |