diff options
Diffstat (limited to 'glibc-compat/nss_files/files-parse.c')
| -rw-r--r-- | glibc-compat/nss_files/files-parse.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/glibc-compat/nss_files/files-parse.c b/glibc-compat/nss_files/files-parse.c deleted file mode 100644 index 49c08153c9..0000000000 --- a/glibc-compat/nss_files/files-parse.c +++ /dev/null @@ -1,252 +0,0 @@ -/* Common code for file-based database parsers in nss_files module. - Copyright (C) 1996, 1997, 1998 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <ctype.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> - -/* These symbols are defined by the including source file: - - ENTNAME -- database name of the structure and functions (hostent, pwent). - STRUCTURE -- struct name, define only if not ENTNAME (passwd, group). - DATABASE -- string of the database file's name ("hosts", "passwd"). - - ENTDATA -- if defined, `struct ENTDATA' is used by the parser to store - things pointed to by the resultant `struct STRUCTURE'. - - NEED_H_ERRNO - defined iff an arg `int *herrnop' is used. - - Also see files-XXX.c. */ - -#define CONCAT(a,b) CONCAT1(a,b) -#define CONCAT1(a,b) a##b - -#ifndef STRUCTURE -# define STRUCTURE ENTNAME -#endif - - -struct parser_data - { -#ifdef ENTDATA - struct ENTDATA entdata; -# define ENTDATA_DECL(data) struct ENTDATA *const entdata = &data->entdata; -#else -# define ENTDATA_DECL(data) -#endif - char linebuffer[0]; - }; - -#ifdef ENTDATA -/* The function can't be exported, because the entdata structure - is defined only in files-foo.c. */ -# define parser_stclass static -#else -/* Export the line parser function so it can be used in nss_db. */ -# define parser_stclass /* Global */ -# define parse_line CONCAT(_nss_files_parse_,ENTNAME) -#endif - - -#ifdef EXTERN_PARSER - -/* The parser is defined in a different module. */ -extern int parse_line (char *line, struct STRUCTURE *result, - struct parser_data *data, size_t datalen); - -# define LINE_PARSER(EOLSET, BODY) /* Do nothing */ - -#else - -/* Define a line parsing function. */ - -# define LINE_PARSER(EOLSET, BODY) \ -parser_stclass int \ -parse_line (char *line, struct STRUCTURE *result, \ - struct parser_data *data, size_t datalen) \ -{ \ - ENTDATA_DECL (data) \ - char *p = strpbrk (line, EOLSET "\n"); \ - if (p != NULL) \ - *p = '\0'; \ - BODY; \ - TRAILING_LIST_PARSER; \ - return 1; \ -} - - -# define STRING_FIELD(variable, terminator_p, swallow) \ - { \ - variable = line; \ - while (*line != '\0' && !terminator_p (*line)) \ - ++line; \ - if (*line != '\0') \ - { \ - *line = '\0'; \ - do \ - ++line; \ - while (swallow && terminator_p (*line)); \ - } \ - } - -# define INT_FIELD(variable, terminator_p, swallow, base, convert) \ - { \ - char *endp; \ - variable = convert (strtoul (line, &endp, base)); \ - if (endp == line) \ - return 0; \ - else if (terminator_p (*endp)) \ - do \ - ++endp; \ - while (swallow && terminator_p (*endp)); \ - else if (*endp != '\0') \ - return 0; \ - line = endp; \ - } - -# define INT_FIELD_MAYBE_NULL(variable, terminator_p, swallow, base, convert, default) \ - { \ - char *endp; \ - if (*line == '\0') \ - /* We expect some more input, so don't allow the string to end here. */ \ - return 0; \ - variable = convert (strtoul (line, &endp, base)); \ - if (endp == line) \ - variable = default; \ - if (terminator_p (*endp)) \ - do \ - ++endp; \ - while (swallow && terminator_p (*endp)); \ - else if (*endp != '\0') \ - return 0; \ - line = endp; \ - } - -# define ISCOLON(c) ((c) == ':') - - -# ifndef TRAILING_LIST_MEMBER -# define TRAILING_LIST_PARSER /* Nothing to do. */ -# else - -# define TRAILING_LIST_PARSER \ -{ \ - char **list = parse_list (line, data, datalen); \ - if (list) \ - result->TRAILING_LIST_MEMBER = list; \ - else \ - return -1; /* -1 indicates we ran out of space. */ \ -} - -static inline char ** -__attribute ((always_inline)) -parse_list (char *line, struct parser_data *data, size_t datalen) -{ - char *eol, **list, **p; - - if (line >= data->linebuffer && line < (char *) data + datalen) - /* Find the end of the line buffer, we will use the space in DATA after - it for storing the vector of pointers. */ - eol = strchr (line, '\0') + 1; - else - /* LINE does not point within DATA->linebuffer, so that space is - not being used for scratch space right now. We can use all of - it for the pointer vector storage. */ - eol = data->linebuffer; - /* Adjust the pointer so it is aligned for storing pointers. */ - eol += __alignof__ (char *) - 1; - eol -= (eol - (char *) 0) % __alignof__ (char *); - /* We will start the storage here for the vector of pointers. */ - list = (char **) eol; - - p = list; - while (1) - { - char *elt; - - if ((size_t) ((char *) &p[1] - (char *) data) > datalen) - { - /* We cannot fit another pointer in the buffer. */ - __set_errno (ERANGE); - return NULL; - } - if (*line == '\0') - break; - - /* Skip leading white space. This might not be portable but useful. */ - while (isspace (*line)) - ++line; - - elt = line; - while (1) - { - if (*line == '\0' || TRAILING_LIST_SEPARATOR_P (*line)) - { - /* End of the next entry. */ - if (line > elt) - /* We really found some data. */ - *p++ = elt; - - /* Terminate string if necessary. */ - if (*line != '\0') - *line++ = '\0'; - break; - } - ++line; - } - } - *p = NULL; - - return list; -} - -# endif /* TRAILING_LIST_MEMBER */ -#endif /* EXTERN_PARSER */ - - -#define LOOKUP_NAME(nameelt, aliaselt) \ -{ \ - char **ap; \ - if (! strcmp (name, result->nameelt)) \ - break; \ - for (ap = result->aliaselt; *ap; ++ap) \ - if (! strcmp (name, *ap)) \ - break; \ - if (*ap) \ - break; \ -} - -#define LOOKUP_NAME_CASE(nameelt, aliaselt) \ -{ \ - char **ap; \ - if (! __strcasecmp (name, result->nameelt)) \ - break; \ - for (ap = result->aliaselt; *ap; ++ap) \ - if (! __strcasecmp (name, *ap)) \ - break; \ - if (*ap) \ - break; \ -} - - -/* This is defined by db-*.c to include "../nss_db/db-XXX.c" instead. */ -#ifndef GENERIC -# define GENERIC "files-XXX.c" -#endif |