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Diffstat (limited to 'libshouldbeinlibc/=path-lookup.c')
| -rw-r--r-- | libshouldbeinlibc/=path-lookup.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/libshouldbeinlibc/=path-lookup.c b/libshouldbeinlibc/=path-lookup.c deleted file mode 100644 index b89f8d4d..00000000 --- a/libshouldbeinlibc/=path-lookup.c +++ /dev/null @@ -1,120 +0,0 @@ -/* Filename lookup using a search path - - Copyright (C) 1995 Free Software Foundation, Inc. - - Written by Miles Bader <miles@gnu.ai.mit.edu> - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2, or (at - your option) any later version. - - This program 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 - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <string.h> -#include <hurd.h> -#include <hurd/lookup.h> - -/* If FILE_NAME contains a '/', or PATH is NULL, call FUN with FILE_NAME, and - return the result (if PREFIXED_NAME is non-NULL, setting *PREFIXED_NAME to - NULL). Otherwise, call FUN repeatedly with FILE_NAME prefixed with each - successive `:' separated element of PATH, returning whenever FUN returns - 0 (if PREFIXED_NAME is non-NULL, setting *PREFIXED_NAME to the resulting - prefixed path). If FUN never returns 0, return the first non-ENOENT - return value, or ENOENT if there is none. */ -error_t -file_name_path_scan (const char *file_name, const char *path, - error_t (*fun)(const char *name), - char **prefixed_name) -{ - if (path == NULL || index (file_name, '/')) - { - if (prefixed_name) - *prefixed_name = 0; - return (*fun)(file_name); - } - else - { - error_t real_err = 0; - size_t file_name_len = strlen (file_name); - - for (;;) - { - error_t err; - const char *next = index (path, ':') ?: path + strlen (path); - size_t pfx_len = next - path; - char pfxed_name[pfx_len + 2 + file_name_len + 1]; - - if (pfx_len == 0) - pfxed_name[pfx_len++] = '.'; - else - bcopy (path, pfxed_name, pfx_len); - if (pfxed_name[pfx_len - 1] != '/') - pfxed_name[pfx_len++] = '/'; - bcopy (file_name, pfxed_name + pfx_len, file_name_len + 1); - - err = (*fun)(pfxed_name); - if (err == 0) - { - if (prefixed_name) - *prefixed_name = strdup (pfxed_name); - return 0; - } - if (!real_err && err != ENOENT) - real_err = err; - - if (*next == '\0') - return real_err ?: ENOENT; - else - path = next + 1; - } - } -} - -/* Lookup FILE_NAME and return the node opened with FLAGS & MODE in result - (see hurd_file_name_lookup for details), but a simple filename (without - any directory prefixes) will be consectutively prefixed with the pathnames - in the `:' separated list PATH until one succeeds in a successful lookup. - If none succeed, then the first error that wasn't ENOENT is returned, or - ENOENT if no other errors were returned. If PREFIXED_NAME is non-NULL, - then if RESULT is looked up directly, *PREFIXED_NAME is set to NULL, and - if it is looked up using a prefix from PATH, *PREFIXED_NAME is set to - malloced storage containing the prefixed name. */ -error_t -hurd_file_name_path_lookup (error_t (*use_init_port) - (int which, - error_t (*operate) (mach_port_t)), - file_t (*get_dtable_port) (int fd), - const char *file_name, const char *path, - int flags, mode_t mode, - file_t *result, char **prefixed_name) -{ - error_t lookup (const char *name) - { - return - __hurd_file_name_lookup (use_init_port, get_dtable_port, - name, flags, mode, result); - } - return file_name_path_scan (file_name, path, lookup, prefixed_name); -} - -mach_port_t -file_name_path_lookup (const char *file_name, const char *path, - int flags, mode_t mode, char **prefixed_name) -{ - error_t err; - file_t result; - - err = hurd_file_name_path_lookup (&_hurd_ports_use, &__getdport, - file_name, path, flags, mode, - &result, prefixed_name); - - return err ? (__hurd_fail (err), MACH_PORT_NULL) : result; -} |