From c49960189a04b73e033016bd0f43fbb950f800e1 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Wed, 20 Oct 1999 22:08:37 +0000 Subject: Fixed up copyright notices and such --- df.c | 225 +++++++++++++++++++++++++++++++++++-------------------------------- 1 file changed, 118 insertions(+), 107 deletions(-) (limited to 'df.c') diff --git a/df.c b/df.c index 7a72bf8fd..f8a953f7d 100644 --- a/df.c +++ b/df.c @@ -1,3 +1,26 @@ +/* + * Mini df implementation for busybox + * + * Copyright (C) 1999 by Lineo, inc. + * Written by Erik Andersen , + * based on original code by (I think) Bruce Perens . + * + * 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + #include "internal.h" #include #include @@ -5,42 +28,38 @@ #include #include -static const char df_usage[] = "df [filesystem ...]\n" -"\n" -"\tPrint the filesystem space used and space available.\n"; +static const char df_usage[] = "df [filesystem ...]\n" + "\n" "\tPrint the filesystem space used and space available.\n"; -static int -df(char* device, const char * mountPoint) +static int df(char *device, const char *mountPoint) { - struct statfs s; - long blocks_used; - long blocks_percent_used; - - if ( statfs(mountPoint, &s) != 0 ) { - perror(mountPoint); - return 1; - } - - if ( s.f_blocks > 0 ) { - blocks_used = s.f_blocks - s.f_bfree; - blocks_percent_used = (long) - (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5); - if ( strcmp(device, "/dev/root")==0) - device=(getfsfile ("/"))->fs_spec; - - printf( - "%-20s %9ld %9ld %9ld %3ld%% %s\n", - device, - (long)(s.f_blocks * (s.f_bsize / 1024.0)), - (long)((s.f_blocks - s.f_bfree) * (s.f_bsize / 1024.0)), - (long)(s.f_bavail * (s.f_bsize / 1024.0)), - blocks_percent_used, - mountPoint); - - } - - return 0; + struct statfs s; + long blocks_used; + long blocks_percent_used; + + if (statfs(mountPoint, &s) != 0) { + perror(mountPoint); + return 1; + } + + if (s.f_blocks > 0) { + blocks_used = s.f_blocks - s.f_bfree; + blocks_percent_used = (long) + (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5); + if (strcmp(device, "/dev/root") == 0) + device = (getfsfile("/"))->fs_spec; + + printf("%-20s %9ld %9ld %9ld %3ld%% %s\n", + device, + (long) (s.f_blocks * (s.f_bsize / 1024.0)), + (long) ((s.f_blocks - s.f_bfree) * (s.f_bsize / 1024.0)), + (long) (s.f_bavail * (s.f_bsize / 1024.0)), + blocks_percent_used, mountPoint); + + } + + return 0; } /* @@ -50,87 +69,79 @@ df(char* device, const char * mountPoint) * Given any other file (or directory), find the mount table entry for its * filesystem. */ -extern struct mntent * -findMountPoint(const char* name, const char* table) +extern struct mntent *findMountPoint(const char *name, const char *table) { - struct stat s; - dev_t mountDevice; - FILE * mountTable; - struct mntent * mountEntry; - - if ( stat(name, &s) != 0 ) - return 0; - - if ( (s.st_mode & S_IFMT) == S_IFBLK ) - mountDevice = s.st_rdev; - else - mountDevice = s.st_dev; - - - if ( (mountTable = setmntent(table, "r")) == 0 ) - return 0; - - while ( (mountEntry = getmntent(mountTable)) != 0 ) { - if ( strcmp(name, mountEntry->mnt_dir) == 0 - || strcmp(name, mountEntry->mnt_fsname) == 0 ) /* String match. */ - break; - if ( stat(mountEntry->mnt_fsname, &s) == 0 - && s.st_rdev == mountDevice ) /* Match the device. */ - break; - if ( stat(mountEntry->mnt_dir, &s) == 0 - && s.st_dev == mountDevice ) /* Match the directory's mount point. */ - break; - } - endmntent(mountTable); - return mountEntry; + struct stat s; + dev_t mountDevice; + FILE *mountTable; + struct mntent *mountEntry; + + if (stat(name, &s) != 0) + return 0; + + if ((s.st_mode & S_IFMT) == S_IFBLK) + mountDevice = s.st_rdev; + else + mountDevice = s.st_dev; + + + if ((mountTable = setmntent(table, "r")) == 0) + return 0; + + while ((mountEntry = getmntent(mountTable)) != 0) { + if (strcmp(name, mountEntry->mnt_dir) == 0 + || strcmp(name, mountEntry->mnt_fsname) == 0) /* String match. */ + break; + if (stat(mountEntry->mnt_fsname, &s) == 0 && s.st_rdev == mountDevice) /* Match the device. */ + break; + if (stat(mountEntry->mnt_dir, &s) == 0 && s.st_dev == mountDevice) /* Match the directory's mount point. */ + break; + } + endmntent(mountTable); + return mountEntry; } -extern int -df_main(int argc, char * * argv) +extern int df_main(int argc, char **argv) { - printf("%-20s %-14s %s %s %s %s\n", "Filesystem", - "1k-blocks", "Used", "Available", "Use%", "Mounted on"); - - if ( argc > 1 ) { - struct mntent* mountEntry; - int status; - - while ( argc > 1 ) { - if ( (mountEntry = findMountPoint(argv[1], "/proc/mounts")) == 0 ) - { - fprintf(stderr, "%s: can't find mount point.\n" ,argv[1]); - return 1; - } - status = df(mountEntry->mnt_fsname, mountEntry->mnt_dir); - if ( status != 0 ) - return status; - argc--; - argv++; - } - return 0; - } - else { - FILE * mountTable; - struct mntent * mountEntry; - - mountTable = setmntent("/proc/mounts", "r"); - if ( mountTable == 0) { - perror("/proc/mounts"); - exit( FALSE); - } - - while ( (mountEntry = getmntent (mountTable))) { - int status=df(mountEntry->mnt_fsname, mountEntry->mnt_dir); - if (status) - return status; - } - endmntent(mountTable); + printf("%-20s %-14s %s %s %s %s\n", "Filesystem", + "1k-blocks", "Used", "Available", "Use%", "Mounted on"); + + if (argc > 1) { + struct mntent *mountEntry; + int status; + + while (argc > 1) { + if ((mountEntry = findMountPoint(argv[1], "/proc/mounts")) == + 0) { + fprintf(stderr, "%s: can't find mount point.\n", argv[1]); + return 1; + } + status = df(mountEntry->mnt_fsname, mountEntry->mnt_dir); + if (status != 0) + return status; + argc--; + argv++; } - return 0; -} - + } else { + FILE *mountTable; + struct mntent *mountEntry; + + mountTable = setmntent("/proc/mounts", "r"); + if (mountTable == 0) { + perror("/proc/mounts"); + exit(FALSE); + } + while ((mountEntry = getmntent(mountTable))) { + int status = df(mountEntry->mnt_fsname, mountEntry->mnt_dir); + if (status) + return status; + } + endmntent(mountTable); + } + return 0; +} -- cgit v1.2.3