URL
https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk
Subversion Repositories openrisc_me
[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [fstab.c] - Rev 298
Go to most recent revision | Compare with Previous | Blame | View Log
/* Copyright (C) 1995, 1996, 1997, 1998, 2000 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 <fstab.h> #include <mntent.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <bits/libc-lock.h> #include <libc-symbols.h> #define BUFFER_SIZE 0x1fc0 struct fstab_state { FILE *fs_fp; char *fs_buffer; struct mntent fs_mntres; struct fstab fs_ret; }; static struct fstab_state *fstab_init (int opt_rewind); static struct mntent *fstab_fetch (struct fstab_state *state); static struct fstab *fstab_convert (struct fstab_state *state); static struct fstab_state fstab_state; int setfsent (void) { return fstab_init (1) != NULL; } struct fstab * getfsent (void) { struct fstab_state *state; state = fstab_init (0); if (state == NULL) return NULL; if (fstab_fetch (state) == NULL) return NULL; return fstab_convert (state); } struct fstab * getfsspec (name) const char *name; { struct fstab_state *state; struct mntent *m; state = fstab_init (1); if (state == NULL) return NULL; while ((m = fstab_fetch (state)) != NULL) if (strcmp (m->mnt_fsname, name) == 0) return fstab_convert (state); return NULL; } struct fstab * getfsfile (name) const char *name; { struct fstab_state *state; struct mntent *m; state = fstab_init (1); if (state == NULL) return NULL; while ((m = fstab_fetch (state)) != NULL) if (strcmp (m->mnt_dir, name) == 0) return fstab_convert (state); return NULL; } void endfsent () { struct fstab_state *state; state = &fstab_state; if (state->fs_fp != NULL) { (void) __endmntent (state->fs_fp); state->fs_fp = NULL; } } static struct fstab_state * fstab_init (int opt_rewind) { struct fstab_state *state; char *buffer; FILE *fp; state = &fstab_state; buffer = state->fs_buffer; if (buffer == NULL) { buffer = (char *) malloc (BUFFER_SIZE); if (buffer == NULL) return NULL; state->fs_buffer = buffer; } fp = state->fs_fp; if (fp != NULL) { if (opt_rewind) rewind (fp); } else { fp = __setmntent (_PATH_FSTAB, "r"); if (fp == NULL) return NULL; state->fs_fp = fp; } return state; } static struct mntent * fstab_fetch (struct fstab_state *state) { return __getmntent_r (state->fs_fp, &state->fs_mntres, state->fs_buffer, BUFFER_SIZE); } static struct fstab * fstab_convert (struct fstab_state *state) { struct mntent *m; struct fstab *f; m = &state->fs_mntres; f = &state->fs_ret; f->fs_spec = m->mnt_fsname; f->fs_file = m->mnt_dir; f->fs_vfstype = m->mnt_type; f->fs_mntops = m->mnt_opts; f->fs_type = (__hasmntopt (m, FSTAB_RW) ? FSTAB_RW : __hasmntopt (m, FSTAB_RQ) ? FSTAB_RQ : __hasmntopt (m, FSTAB_RO) ? FSTAB_RO : __hasmntopt (m, FSTAB_SW) ? FSTAB_SW : __hasmntopt (m, FSTAB_XX) ? FSTAB_XX : "??"); f->fs_freq = m->mnt_freq; f->fs_passno = m->mnt_passno; return f; } /* Make sure the memory is freed if the programs ends while in memory-debugging mode and something actually was allocated. */ static void __attribute__ ((unused)) fstab_free (void) { char *buffer; buffer = fstab_state.fs_buffer; if (buffer != NULL) free ((void *) buffer); } text_set_element (__libc_subfreeres, fstab_free);
Go to most recent revision | Compare with Previous | Blame | View Log