glibc/hurd/path-lookup.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

124 lines
4.3 KiB
C

/* Filename lookup using a search path
Copyright (C) 1995-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>
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, see
<https://www.gnu.org/licenses/>. */
#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 || strchr (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 = strchr (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
memcpy (pfxed_name, path, pfx_len);
if (pfxed_name[pfx_len - 1] != '/')
pfxed_name[pfx_len++] = '/';
memcpy (pfxed_name + pfx_len, file_name, 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 consecutively 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),
error_t (*lookup)
(file_t dir, const char *name, int flags, mode_t mode,
retry_type *do_retry, string_t retry_name,
mach_port_t *result),
const char *file_name, const char *path,
int flags, mode_t mode,
file_t *result, char **prefixed_name)
{
error_t scan_lookup (const char *name)
{
return
__hurd_file_name_lookup (use_init_port, get_dtable_port, lookup,
name, flags, mode, result);
}
return file_name_path_scan (file_name, path, scan_lookup, prefixed_name);
}
strong_alias (__hurd_file_name_path_lookup, hurd_file_name_path_lookup)
file_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, 0,
file_name, path, flags, mode,
&result, prefixed_name);
return err ? (__hurd_fail (err), MACH_PORT_NULL) : result;
}