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This commit is contained in:
Eric Andersen 1999-10-13 18:01:10 +00:00
parent 5de3065f58
commit c6cb79dedf
17 changed files with 279 additions and 963 deletions
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12
applets/busybox.c
View File

@ -199,12 +199,7 @@ int busybox_main(int argc, char **argv)
argc--; argc--;
argv++; argv++;
/* If we've already been here once, exit now */ if (been_there_done_that == 1 || argc < 1) {
if (been_there_done_that == 1)
return -1;
been_there_done_that = 1;
if (argc < 1) {
const struct Applet *a = applets; const struct Applet *a = applets;
fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n", fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n",
BB_VER, BB_BT); BB_VER, BB_BT);
@ -224,6 +219,9 @@ int busybox_main(int argc, char **argv)
} }
fprintf(stderr, "\n\n"); fprintf(stderr, "\n\n");
exit(-1); exit(-1);
} else } else {
/* If we've already been here once, exit now */
been_there_done_that = 1;
return (main(argc, argv)); return (main(argc, argv));
} }
}

64
block_device.c
View File

@ -1,64 +0,0 @@
#include "internal.h"
#include <dirent.h>
#include <string.h>
#include <stdio.h>
const char block_device_usage[] = "block_device mount-point";
static dev_t *my_device;
static char *my_device_name;
int
match_mount(const struct FileInfo * i) {
if ( S_ISBLK(i->stat.st_mode)
&& (i->stat.st_rdev == *my_device)) {
my_device_name=strdup(i->source);
return 1;
} else
return 0;
}
extern int
block_device_main(struct FileInfo * i, int argc, char * * argv)
{
char *device_name = block_device(argv[1],i);
if ( device_name == NULL )
return -1;
printf("%s\n", device_name);
exit(0);
}
char * block_device(const char *name, struct FileInfo *i)
{
struct stat s;
char *buf;
int dinam=0;
if ( stat(name, &s) ) return (char *) NULL;
if (!i) {
i=(struct FileInfo*)malloc(sizeof(struct FileInfo));
dinam = 1;
}
memset((void *)i, 0, sizeof(struct FileInfo));
my_device=(dev_t *)malloc(sizeof(dev_t));
*my_device = s.st_dev;
my_device_name = NULL;
i->source = "/dev";
i->stat = s;
i->processDirectoriesAfterTheirContents=1;
descend(i, match_mount);
if (dinam) free(i);
if ( my_device_name ) {
buf = strdup(my_device_name);
free(my_device);
free(my_device_name);
return buf;
} else {
fprintf( stderr
,"Can't find special file for block device %d, %d.\n"
,(int) *my_device >> 8 & 0xff
,(int) *my_device & 0xff);
free(my_device);
return (char *) NULL;
}
}

12
busybox.c
View File

@ -199,12 +199,7 @@ int busybox_main(int argc, char **argv)
argc--; argc--;
argv++; argv++;
/* If we've already been here once, exit now */ if (been_there_done_that == 1 || argc < 1) {
if (been_there_done_that == 1)
return -1;
been_there_done_that = 1;
if (argc < 1) {
const struct Applet *a = applets; const struct Applet *a = applets;
fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n", fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n",
BB_VER, BB_BT); BB_VER, BB_BT);
@ -224,6 +219,9 @@ int busybox_main(int argc, char **argv)
} }
fprintf(stderr, "\n\n"); fprintf(stderr, "\n\n");
exit(-1); exit(-1);
} else } else {
/* If we've already been here once, exit now */
been_there_done_that = 1;
return (main(argc, argv)); return (main(argc, argv));
} }
}

3
busybox.def.h
View File

@ -13,11 +13,9 @@
#define BB_CP #define BB_CP
#define BB_DATE #define BB_DATE
#define BB_DD #define BB_DD
//#define BB_DESCEND
#define BB_DF #define BB_DF
#define BB_DMESG #define BB_DMESG
#define BB_DUTMP #define BB_DUTMP
//#define BB_DYADIC
#define BB_FALSE #define BB_FALSE
//#define BB_FDFLUSH //#define BB_FDFLUSH
#define BB_FIND #define BB_FIND
@ -36,7 +34,6 @@
//#define BB_MKNOD //#define BB_MKNOD
////#define BB_MKSWAP ////#define BB_MKSWAP
#define BB_MNC #define BB_MNC
//#define BB_MONADIC
#define BB_MORE #define BB_MORE
#define BB_MOUNT #define BB_MOUNT
////#define BB_MT ////#define BB_MT

4
chown.c
View File

@ -48,10 +48,10 @@ static int fileAction(const char *fileName)
((chownApp==TRUE)? uid: statBuf.st_uid), ((chownApp==TRUE)? uid: statBuf.st_uid),
gid) < 0)) { gid) < 0)) {
perror(fileName); perror(fileName);
return( TRUE);
}
return( FALSE); return( FALSE);
} }
return( TRUE);
}
int chown_main(int argc, char **argv) int chown_main(int argc, char **argv)
{ {

4
coreutils/chown.c
View File

@ -48,10 +48,10 @@ static int fileAction(const char *fileName)
((chownApp==TRUE)? uid: statBuf.st_uid), ((chownApp==TRUE)? uid: statBuf.st_uid),
gid) < 0)) { gid) < 0)) {
perror(fileName); perror(fileName);
return( TRUE);
}
return( FALSE); return( FALSE);
} }
return( TRUE);
}
int chown_main(int argc, char **argv) int chown_main(int argc, char **argv)
{ {

34
coreutils/cp.c
View File

@ -47,43 +47,9 @@ static int fileAction(const char *fileName)
char newdestName[NAME_MAX]; char newdestName[NAME_MAX];
strcpy(newdestName, destName); strcpy(newdestName, destName);
strcat(newdestName, fileName+(strlen(srcName))); strcat(newdestName, fileName+(strlen(srcName)));
fprintf(stderr, "A: copying %s to %s\n", fileName, newdestName);
return (copyFile(fileName, newdestName, preserveFlag, followLinks)); return (copyFile(fileName, newdestName, preserveFlag, followLinks));
} }
static int dirAction(const char *fileName)
{
char newdestName[NAME_MAX];
struct stat statBuf;
struct utimbuf times;
strcpy(newdestName, destName);
strcat(newdestName, fileName+(strlen(srcName)));
if (stat(newdestName, &statBuf)) {
if (mkdir( newdestName, 0777777 ^ umask (0))) {
perror(newdestName);
return( FALSE);
}
}
else if (!S_ISDIR (statBuf.st_mode)) {
fprintf(stderr, "`%s' exists but is not a directory", newdestName);
return( FALSE);
}
if (preserveFlag==TRUE) {
/* Try to preserve premissions, but don't whine on failure */
if (stat(newdestName, &statBuf)) {
perror(newdestName);
return( FALSE);
}
chmod(newdestName, statBuf.st_mode);
chown(newdestName, statBuf.st_uid, statBuf.st_gid);
times.actime = statBuf.st_atime;
times.modtime = statBuf.st_mtime;
utime(newdestName, &times);
}
return TRUE;
}
extern int cp_main(int argc, char **argv) extern int cp_main(int argc, char **argv)
{ {

88
coreutils/df.c
View File

@ -43,6 +43,50 @@ df(char* device, const char * mountPoint)
return 0; return 0;
} }
/*
* Given a block device, find the mount table entry if that block device
* is mounted.
*
* Given any other file (or directory), find the mount table entry for its
* filesystem.
*/
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;
}
extern int extern int
df_main(int argc, char * * argv) df_main(int argc, char * * argv)
{ {
@ -90,47 +134,3 @@ df_main(int argc, char * * argv)
/*
* Given a block device, find the mount table entry if that block device
* is mounted.
*
* Given any other file (or directory), find the mount table entry for its
* filesystem.
*/
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;
}

34
cp.c
View File

@ -47,43 +47,9 @@ static int fileAction(const char *fileName)
char newdestName[NAME_MAX]; char newdestName[NAME_MAX];
strcpy(newdestName, destName); strcpy(newdestName, destName);
strcat(newdestName, fileName+(strlen(srcName))); strcat(newdestName, fileName+(strlen(srcName)));
fprintf(stderr, "A: copying %s to %s\n", fileName, newdestName);
return (copyFile(fileName, newdestName, preserveFlag, followLinks)); return (copyFile(fileName, newdestName, preserveFlag, followLinks));
} }
static int dirAction(const char *fileName)
{
char newdestName[NAME_MAX];
struct stat statBuf;
struct utimbuf times;
strcpy(newdestName, destName);
strcat(newdestName, fileName+(strlen(srcName)));
if (stat(newdestName, &statBuf)) {
if (mkdir( newdestName, 0777777 ^ umask (0))) {
perror(newdestName);
return( FALSE);
}
}
else if (!S_ISDIR (statBuf.st_mode)) {
fprintf(stderr, "`%s' exists but is not a directory", newdestName);
return( FALSE);
}
if (preserveFlag==TRUE) {
/* Try to preserve premissions, but don't whine on failure */
if (stat(newdestName, &statBuf)) {
perror(newdestName);
return( FALSE);
}
chmod(newdestName, statBuf.st_mode);
chown(newdestName, statBuf.st_uid, statBuf.st_gid);
times.actime = statBuf.st_atime;
times.modtime = statBuf.st_mtime;
utime(newdestName, &times);
}
return TRUE;
}
extern int cp_main(int argc, char **argv) extern int cp_main(int argc, char **argv)
{ {

124
descend.c
View File

@ -1,124 +0,0 @@
#include "internal.h"
#include <stdio.h>
#include <dirent.h>
#include <string.h>
#include <errno.h>
static int
noDots(const struct dirent * e)
{
if ( e->d_name[0] == '.'
&& (e->d_name[1] == '\0'
|| (e->d_name[1] == '.' && e->d_name[2] == '\0')) )
return 0;
else
return 1;
}
extern int
descend(
struct FileInfo *oldInfo
,int (*function)(const struct FileInfo * i))
{
char pathname[1024];
struct dirent * * names;
struct dirent * * n;
int length;
char * filename;
int status = 0;
int count;
if ( *oldInfo->source == '\0' ) {
errno = EINVAL;
return -1;
}
if ( oldInfo->stat.st_dev == 0
&& oldInfo->stat.st_ino == 0
&& oldInfo->stat.st_mode == 0 ) {
if ( lstat(oldInfo->source, &oldInfo->stat) != 0 )
return -1;
oldInfo->isSymbolicLink = ((oldInfo->stat.st_mode & S_IFMT) == S_IFLNK);
if ( oldInfo->isSymbolicLink )
if ( stat(oldInfo->source, &oldInfo->stat) != 0 )
memset((void *)&oldInfo->stat, 0, sizeof(oldInfo->stat));
}
if ( !oldInfo->processDirectoriesAfterTheirContents ) {
if ( function )
status = (*function)(oldInfo);
if ( status == 0 )
status = post_process(oldInfo);
}
if ( (count = scandir(oldInfo->source, &names, noDots, alphasort)) < 0 )
return -1;
length = strlen(oldInfo->source);
if ( oldInfo->source[length-1] == '/' )
length--;
memcpy(pathname, oldInfo->source, length+1);
pathname[length] = '/';
filename = &pathname[length+1];
n = names;
while ( count-- > 0 ) {
struct FileInfo i = *oldInfo;
strcpy(filename, (*n)->d_name);
free(*n++);
if ( lstat(pathname, &i.stat) != 0 && errno != ENOENT ) {
fprintf(stderr, "Can't stat %s: %s\n", pathname, strerror(errno));
return -1;
}
i.isSymbolicLink = ((i.stat.st_mode & S_IFMT) == S_IFLNK);
if ( i.isSymbolicLink )
if ( stat(pathname, &i.stat) != 0 )
memset((void *)&i.stat, 0, sizeof(i.stat));
i.source = pathname;
if ( i.dyadic ) {
char d[1024];
i.destination = join_paths(d, i.destination, &i.source[i.directoryLength]);
}
else
i.destination = i.source;
if ( !i.isSymbolicLink && (i.stat.st_mode & S_IFMT) == S_IFDIR )
status = descend(&i, function);
else {
if ( function )
status = (*function)(&i);
if ( status == 0 )
status = post_process(&i);
}
if ( !i.processDirectoriesAfterTheirContents
&& status == 0
&& (i.stat.st_mode & S_IFMT) == S_IFDIR )
descend(&i, function);
if ( status != 0 && !i.force ) {
while ( count-- > 0 )
free(*n++);
break;
}
}
free(names);
if ( oldInfo->processDirectoriesAfterTheirContents ) {
if ( function )
status = (*function)(oldInfo);
if ( status == 0 )
status = post_process(oldInfo);
}
return status;
}

88
df.c
View File

@ -43,6 +43,50 @@ df(char* device, const char * mountPoint)
return 0; return 0;
} }
/*
* Given a block device, find the mount table entry if that block device
* is mounted.
*
* Given any other file (or directory), find the mount table entry for its
* filesystem.
*/
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;
}
extern int extern int
df_main(int argc, char * * argv) df_main(int argc, char * * argv)
{ {
@ -90,47 +134,3 @@ df_main(int argc, char * * argv)
/*
* Given a block device, find the mount table entry if that block device
* is mounted.
*
* Given any other file (or directory), find the mount table entry for its
* filesystem.
*/
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;
}

28
dyadic.c
View File

@ -1,28 +0,0 @@
#include "internal.h"
#include <stdio.h>
extern int
dyadic_main(
struct FileInfo * i
,int argc
,char * * argv)
{
int flags;
i->dyadic = 1;
i->destination = argv[argc - 1];
for ( flags = 0; flags < (argc - 1) && argv[flags + 1][0] == '-' ; flags++ )
;
if ( argc - flags < 3 ) {
usage(i->applet->usage);
return 1;
}
else if ( argc - flags > 3 ) {
if ( !is_a_directory(i->destination) ) {
fprintf(stderr, "%s: not a directory.\n", i->destination);
return 1;
}
}
return monadic_main(i, argc - 1, argv);
}

46
findmount.c
View File

@ -1,46 +0,0 @@
#include "internal.h"
#include <stdio.h>
#include <mntent.h>
#include <sys/stat.h>
/*
* Given a block device, find the mount table entry if that block device
* is mounted.
*
* Given any other file (or directory), find the mount table entry for its
* filesystem.
*/
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;
}

61
internal.h
View File

@ -49,49 +49,11 @@
struct FileInfo {
unsigned int complainInPostProcess:1;
unsigned int changeUserID:1;
unsigned int changeGroupID:1;
unsigned int changeMode:1;
unsigned int create:1;
unsigned int force:1;
unsigned int recursive:1;
unsigned int processDirectoriesAfterTheirContents;
unsigned int makeParentDirectories:1;
unsigned int didOperation:1;
unsigned int isSymbolicLink:1;
unsigned int makeSymbolicLink:1;
unsigned int dyadic:1;
const char* source;
const char* destination;
int directoryLength;
uid_t userID;
gid_t groupID;
mode_t andWithMode;
mode_t orWithMode;
struct stat stat;
const struct Applet *
applet;
};
struct Applet { struct Applet {
const char* name; const char* name;
int (*main)(int argc, char** argv); int (*main)(int argc, char** argv);
}; };
extern void name_and_error(const char*);
extern int is_a_directory(const char*);
extern char* join_paths(char *, const char *, const char *);
extern int descend(
struct FileInfo *o
,int (*function)(const struct FileInfo * i));
extern struct mntent *
findMountPoint(const char*, const char *);
extern void usage(const char*);
extern int busybox_main(int argc, char** argv); extern int busybox_main(int argc, char** argv);
extern int block_device_main(int argc, char** argv); extern int block_device_main(int argc, char** argv);
extern int cat_more_main(int argc, char** argv); extern int cat_more_main(int argc, char** argv);
@ -146,29 +108,6 @@ extern int update_main(int argc, char** argv);
extern int zcat_main(int argc, char** argv); extern int zcat_main(int argc, char** argv);
extern int gzip_main(int argc, char** argv); extern int gzip_main(int argc, char** argv);
extern int
parse_mode(
const char* s
,mode_t * or
,mode_t * and
,int * group_execute);
extern int parse_user_name(const char* string, struct FileInfo * i);
/*
* A chunk of data.
* Chunks contain data which is allocated as needed, but which is
* not freed until all of the data needs freeing, such as at
* the beginning of the next command.
*/
typedef struct chunk CHUNK;
#define CHUNK_INIT_SIZE 4
struct chunk {
CHUNK *next;
char data[CHUNK_INIT_SIZE]; /* actually of varying length */
};
const char *modeString(int mode); const char *modeString(int mode);
const char *timeString(time_t timeVal); const char *timeString(time_t timeVal);

126
monadic.c
View File

@ -1,126 +0,0 @@
#include "internal.h"
#include <stdio.h>
#include <string.h>
#include <grp.h>
extern int
monadic_main(
struct FileInfo * i
,int argc
,char * * argv)
{
int status = 0;
while ( argc > 1 && argv[1][0] == '-' ) {
switch ( argv[1][1] ) {
case 'c':
i->create = 1;
break;
case 'f':
i->force = 1;
break;
case 'g':
if ( argc > 2 ) {
struct group * g;
if ( (g = getgrnam(argv[2])) == 0 ) {
fprintf(stderr, "%s: no such group.\n", argv[1]);
return 1;
}
i->groupID = g->gr_gid;
i->changeGroupID = 1;
i->complainInPostProcess = 1;
argc--;
argv++;
break;
}
usage(i->applet->usage);
return 1;
case 'm':
if ( argc > 2 ) {
status = parse_mode(
argv[2]
,&i->orWithMode
,&i->andWithMode, 0);
if ( status == 0 ) {
i->changeMode = 1;
i->complainInPostProcess = 1;
argc--;
argv++;
break;
}
}
usage(i->applet->usage);
return 1;
case 'o':
if ( argc > 2 ) {
status = parse_user_name(argv[2], i);
if ( status != 0 )
return status;
i->changeUserID = 1;
i->complainInPostProcess = 1;
argc--;
argv++;
break;
}
usage(i->applet->usage);
return 1;
case 'p':
i->makeParentDirectories = 1;
break;
case 'r':
case 'R':
i->recursive = 1;
break;
case 's':
i->makeSymbolicLink = 1;
break;
default:
usage(i->applet->usage);
return 1;
}
argv++;
argc--;
}
while ( argc > 1 ) {
char * slash;
i->source = argv[1];
if ( (slash = strrchr(i->source, '/')) != 0 ) {
i->directoryLength = slash - i->source;
if ( i->source[i->directoryLength] == '\0' )
i->directoryLength = 0;
}
else
i->directoryLength = 0;
if ( !i->dyadic )
i->destination = i->source;
if ( lstat(i->source, &i->stat) == 0 ) {
i->isSymbolicLink = (i->stat.st_mode & S_IFMT)==S_IFLNK;
if ( i->isSymbolicLink )
if ( stat(i->source, &i->stat) != 0 )
memset(&i->stat, 0, sizeof(i->stat));
}
else
memset(&i->stat, 0, sizeof(i->stat));
if ( i->isSymbolicLink
|| !i->recursive
|| ((i->stat.st_mode & S_IFMT) != S_IFDIR) ) {
if ( i->applet->function )
status = i->applet->function(i);
if ( status == 0 )
status = post_process(i);
}
else
status = descend(i, i->applet->function);
if ( status != 0 && !i->force )
return status;
argv++;
argc--;
}
return 0;
}

41
postprocess.c
View File

@ -1,41 +0,0 @@
#include "internal.h"
extern int
post_process(const struct FileInfo * i)
{
int status = 0;
if ( i->destination == 0 || *i->destination == 0 )
return 0;
if ( status == 0 && i->changeMode ) {
mode_t mode = i->stat.st_mode & 07777;
mode &= i->andWithMode;
mode |= i->orWithMode;
status = chmod(i->destination, mode);
if ( status != 0 && i->complainInPostProcess && !i->force ) {
name_and_error(i->destination);
return 1;
}
}
if ( i->changeUserID || i->changeGroupID ) {
uid_t uid = i->stat.st_uid;
gid_t gid = i->stat.st_gid;
if ( i->changeUserID )
uid = i->userID;
if ( i->changeGroupID )
gid = i->groupID;
status = chown(i->destination, uid, gid);
if ( status != 0 && i->complainInPostProcess && !i->force ) {
name_and_error(i->destination);
return 1;
}
}
return status;
}

473
utility.c
View File

@ -33,34 +33,190 @@
#include <sys/stat.h> #include <sys/stat.h>
#include <unistd.h> #include <unistd.h>
#if 0
extern char *join_paths(char *buffer, const char *a, const char *b)
#if defined (BB_CP) || defined (BB_MV)
/*
* Return TRUE if a fileName is a directory.
* Nonexistant files return FALSE.
*/
int isDirectory(const char *name)
{ {
int length = 0; struct stat statBuf;
if (a && *a) { if (stat(name, &statBuf) < 0)
length = strlen(a); return FALSE;
memcpy(buffer, a, length);
} return S_ISDIR(statBuf.st_mode);
if (b && *b) {
if (length > 0 && buffer[length - 1] != '/')
buffer[length++] = '/';
if (*b == '/')
b++;
strcpy(&buffer[length], b);
}
return buffer;
} }
/*
* Copy one file to another, while possibly preserving its modes, times,
* and modes. Returns TRUE if successful, or FALSE on a failure with an
* error message output. (Failure is not indicted if the attributes cannot
* be set.)
*/
int
copyFile(
const char *srcName,
const char *destName, int setModes, int followLinks)
{
int rfd;
int wfd;
int rcc;
int result;
char buf[BUF_SIZE];
struct stat srcStatBuf;
struct stat dstStatBuf;
struct utimbuf times;
if (followLinks == FALSE)
result = stat(srcName, &srcStatBuf);
else
result = lstat(srcName, &srcStatBuf);
if (result < 0) {
perror(srcName);
return FALSE;
}
if (followLinks == FALSE)
result = stat(destName, &dstStatBuf);
else
result = lstat(destName, &dstStatBuf);
if (result < 0) {
dstStatBuf.st_ino = -1;
dstStatBuf.st_dev = -1;
}
if ((srcStatBuf.st_dev == dstStatBuf.st_dev) &&
(srcStatBuf.st_ino == dstStatBuf.st_ino)) {
fprintf(stderr, "Copying file \"%s\" to itself\n", srcName);
return FALSE;
}
if (S_ISDIR(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying directory %s to %s\n", srcName, destName);
/* Make sure the directory is writable */
if (mkdir(destName, 0777777 ^ umask(0))) {
perror(destName);
return (FALSE);
}
} else if (S_ISLNK(srcStatBuf.st_mode)) {
char *link_val;
int link_size;
//fprintf(stderr, "copying link %s to %s\n", srcName, destName);
link_val = (char *) alloca(PATH_MAX + 2);
link_size = readlink(srcName, link_val, PATH_MAX + 1);
if (link_size < 0) {
perror(srcName);
return (FALSE);
}
link_val[link_size] = '\0';
if (symlink(link_val, destName)) {
perror(destName);
return (FALSE);
}
} else if (S_ISFIFO(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying fifo %s to %s\n", srcName, destName);
if (mkfifo(destName, 644)) {
perror(destName);
return (FALSE);
}
} else if (S_ISBLK(srcStatBuf.st_mode) || S_ISCHR(srcStatBuf.st_mode)
|| S_ISSOCK (srcStatBuf.st_mode)) {
//fprintf(stderr, "copying soc, blk, or chr %s to %s\n", srcName, destName);
if (mknod(destName, srcStatBuf.st_mode, srcStatBuf.st_rdev)) {
perror(destName);
return (FALSE);
}
} else if (S_ISREG(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying regular file %s to %s\n", srcName, destName);
rfd = open(srcName, O_RDONLY);
if (rfd < 0) {
perror(srcName);
return FALSE;
}
wfd = creat(destName, srcStatBuf.st_mode);
if (wfd < 0) {
perror(destName);
close(rfd);
return FALSE;
}
while ((rcc = read(rfd, buf, sizeof(buf))) > 0) {
if (fullWrite(wfd, buf, rcc) < 0)
goto error_exit;
}
if (rcc < 0) {
goto error_exit;
}
close(rfd);
if (close(wfd) < 0) {
return FALSE;
}
}
if (setModes == TRUE) {
//fprintf(stderr, "Setting permissions for %s\n", destName);
chmod(destName, srcStatBuf.st_mode);
if (followLinks == TRUE)
chown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid);
else
lchown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid);
times.actime = srcStatBuf.st_atime;
times.modtime = srcStatBuf.st_mtime;
utime(destName, &times);
}
return TRUE;
error_exit:
//fprintf(stderr, "choking on %s\n", destName);
perror(destName);
close(rfd);
close(wfd);
return FALSE;
}
#endif #endif
#ifdef BB_MV
/*
* Build a path name from the specified directory name and file name.
* If the directory name is NULL, then the original fileName is returned.
* The built path is in a static area, and is overwritten for each call.
*/
char *buildName(const char *dirName, const char *fileName)
{
const char *cp;
static char buf[PATH_LEN];
if ((dirName == NULL) || (*dirName == '\0')) {
strcpy(buf, fileName);
return buf;
}
cp = strrchr(fileName, '/');
if (cp)
fileName = cp + 1;
strcpy(buf, dirName);
strcat(buf, "/");
return buf;
}
#endif
static CHUNK *chunkList;
/* /*
@ -129,282 +285,7 @@ const char *modeString(int mode)
} }
/* #ifdef BB_TAR
* Return TRUE if a fileName is a directory.
* Nonexistant files return FALSE.
*/
int isDirectory(const char *name)
{
struct stat statBuf;
if (stat(name, &statBuf) < 0)
return FALSE;
return S_ISDIR(statBuf.st_mode);
}
/*
* Return TRUE if a filename is a block or character device.
* Nonexistant files return FALSE.
*/
int isDevice(const char *name)
{
struct stat statBuf;
if (stat(name, &statBuf) < 0)
return FALSE;
return S_ISBLK(statBuf.st_mode) || S_ISCHR(statBuf.st_mode);
}
/*
* Copy one file to another, while possibly preserving its modes, times,
* and modes. Returns TRUE if successful, or FALSE on a failure with an
* error message output. (Failure is not indicted if the attributes cannot
* be set.)
*/
int
copyFile(
const char *srcName,
const char *destName, int setModes, int followLinks)
{
int rfd;
int wfd;
int rcc;
char buf[BUF_SIZE];
struct stat statBuf1;
struct stat statBuf2;
struct utimbuf times;
if (stat(srcName, &statBuf1) < 0) {
perror(srcName);
return FALSE;
}
if (stat(destName, &statBuf2) < 0) {
statBuf2.st_ino = -1;
statBuf2.st_dev = -1;
}
if ((statBuf1.st_dev == statBuf2.st_dev) &&
(statBuf1.st_ino == statBuf2.st_ino)) {
fprintf(stderr, "Copying file \"%s\" to itself\n", srcName);
return FALSE;
}
if (S_ISDIR(statBuf1.st_mode)) {
/* Make sure the directory is writable */
if (mkdir(destName, 0777777 ^ umask(0))) {
perror(destName);
return (FALSE);
}
} else if (S_ISFIFO(statBuf1.st_mode)) {
if (mkfifo(destName, 644)) {
perror(destName);
return (FALSE);
}
} else if (S_ISBLK(statBuf1.st_mode) || S_ISCHR(statBuf1.st_mode)) {
if (mknod(destName, 644, statBuf1.st_rdev)) {
perror(destName);
return (FALSE);
}
} else if (S_ISLNK(statBuf1.st_mode)) {
char *link_val;
int link_size;
link_val = (char *) alloca(PATH_MAX + 2);
link_size = readlink(srcName, link_val, PATH_MAX + 1);
if (link_size < 0) {
perror(srcName);
return (FALSE);
}
link_val[link_size] = '\0';
if (symlink(link_val, destName)) {
perror(srcName);
return (FALSE);
}
} else {
rfd = open(srcName, O_RDONLY);
if (rfd < 0) {
perror(srcName);
return FALSE;
}
wfd = creat(destName, statBuf1.st_mode);
if (wfd < 0) {
perror(destName);
close(rfd);
return FALSE;
}
while ((rcc = read(rfd, buf, sizeof(buf))) > 0) {
if (fullWrite(wfd, buf, rcc) < 0)
goto error_exit;
}
if (rcc < 0) {
perror(srcName);
goto error_exit;
}
close(rfd);
if (close(wfd) < 0) {
perror(destName);
return FALSE;
}
}
if (setModes == TRUE) {
chmod(destName, statBuf1.st_mode);
if (followLinks == TRUE)
chown(destName, statBuf1.st_uid, statBuf1.st_gid);
else
lchown(destName, statBuf1.st_uid, statBuf1.st_gid);
times.actime = statBuf1.st_atime;
times.modtime = statBuf1.st_mtime;
utime(destName, &times);
}
return TRUE;
error_exit:
close(rfd);
close(wfd);
return FALSE;
}
/*
* Build a path name from the specified directory name and file name.
* If the directory name is NULL, then the original fileName is returned.
* The built path is in a static area, and is overwritten for each call.
*/
char *buildName(const char *dirName, const char *fileName)
{
const char *cp;
static char buf[PATH_LEN];
if ((dirName == NULL) || (*dirName == '\0')) {
strcpy(buf, fileName);
return buf;
}
cp = strrchr(fileName, '/');
if (cp)
fileName = cp + 1;
strcpy(buf, dirName);
strcat(buf, "/");
return buf;
}
/*
* Make a NULL-terminated string out of an argc, argv pair.
* Returns TRUE if successful, or FALSE if the string is too long,
* with an error message given. This does not handle spaces within
* arguments correctly.
*/
int makeString( int argc, const char **argv, char *buf, int bufLen)
{
int len;
while (argc-- > 0) {
len = strlen(*argv);
if (len >= bufLen) {
fprintf(stderr, "Argument string too long\n");
return FALSE;
}
strcpy(buf, *argv++);
buf += len;
bufLen -= len;
if (argc)
*buf++ = ' ';
bufLen--;
}
*buf = '\0';
return TRUE;
}
/*
* Allocate a chunk of memory (like malloc).
* The difference, though, is that the memory allocated is put on a
* list of chunks which can be freed all at one time. You CAN NOT free
* an individual chunk.
*/
char *getChunk(int size)
{
CHUNK *chunk;
if (size < CHUNK_INIT_SIZE)
size = CHUNK_INIT_SIZE;
chunk = (CHUNK *) malloc(size + sizeof(CHUNK) - CHUNK_INIT_SIZE);
if (chunk == NULL)
return NULL;
chunk->next = chunkList;
chunkList = chunk;
return chunk->data;
}
/*
* Duplicate a string value using the chunk allocator.
* The returned string cannot be individually freed, but can only be freed
* with other strings when freeChunks is called. Returns NULL on failure.
*/
char *chunkstrdup(const char *str)
{
int len;
char *newStr;
len = strlen(str) + 1;
newStr = getChunk(len);
if (newStr)
memcpy(newStr, str, len);
return newStr;
}
/*
* Free all chunks of memory that had been allocated since the last
* call to this routine.
*/
void freeChunks(void)
{
CHUNK *chunk;
while (chunkList) {
chunk = chunkList;
chunkList = chunk->next;
free((char *) chunk);
}
}
/* /*
* Get the time string to be used for a file. * Get the time string to be used for a file.
* This is down to the minute for new files, but only the date for old files. * This is down to the minute for new files, but only the date for old files.
@ -577,8 +458,10 @@ int fullRead(int fd, char *buf, int len)
return total; return total;
} }
#endif
#if defined (BB_CHOWN) || defined (BB_CP) || defined (BB_FIND) || defined (BB_LS)
/* /*
* Walk down all the directories under the specified * Walk down all the directories under the specified
* location, and do something (something specified * location, and do something (something specified
@ -618,7 +501,6 @@ recursiveAction(const char *fileName, int recurse, int followLinks,
if (S_ISDIR(statbuf.st_mode)) { if (S_ISDIR(statbuf.st_mode)) {
DIR *dir; DIR *dir;
fprintf(stderr, "Dir: %s\n", fileName);
dir = opendir(fileName); dir = opendir(fileName);
if (!dir) { if (!dir) {
perror(fileName); perror(fileName);
@ -627,7 +509,7 @@ recursiveAction(const char *fileName, int recurse, int followLinks,
if (dirAction != NULL) { if (dirAction != NULL) {
status = dirAction(fileName); status = dirAction(fileName);
if (status == FALSE) { if (status == FALSE) {
perror("cp"); perror(fileName);
return (FALSE); return (FALSE);
} }
} }
@ -652,7 +534,6 @@ recursiveAction(const char *fileName, int recurse, int followLinks,
return (FALSE); return (FALSE);
} }
} else { } else {
fprintf(stderr, "File: %s\n", fileName);
if (fileAction == NULL) if (fileAction == NULL)
return (TRUE); return (TRUE);
else else
@ -661,6 +542,6 @@ recursiveAction(const char *fileName, int recurse, int followLinks,
return (TRUE); return (TRUE);
} }
#endif
/* END CODE */ /* END CODE */