*
*/
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <time.h>
+#include <utime.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <sys/ioctl.h>
+#include <sys/utsname.h> /* for uname(2) */
+
#include "busybox.h"
#if defined (BB_CHMOD_CHOWN_CHGRP) \
|| defined (BB_CP_MV) \
#define BB_DECLARE_EXTERN
#include "messages.c"
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <time.h>
-#include <utime.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include <sys/ioctl.h>
-#include <sys/utsname.h> /* for uname(2) */
-
#include "pwd_grp/pwd.h"
#include "pwd_grp/grp.h"
#include <sys/syscall.h>
#include <linux/unistd.h>
-/* Busybox mount uses either /proc/filesystems or /dev/mtab to get the
- * list of available filesystems used for the -t auto option */
+/* Busybox mount uses either /proc/mounts or /dev/mtab to
+ * get the list of currently mounted filesystems */
#if defined BB_MOUNT || defined BB_UMOUNT || defined BB_DF
# if defined BB_MTAB
const char mtab_file[] = "/etc/mtab";
# endif
#endif
-extern void usage(const char *usage)
+static struct BB_applet *applet_using;
+
+extern void show_usage(void)
{
- fprintf(stderr, "%s\n\nUsage: %s\n", full_version, usage);
+ const char *format_string;
+ const char *usage_string = usage_messages;
+ int i;
+
+ for (i = applet_using - applets; i > 0; ) {
+ if (!*usage_string++) {
+ --i;
+ }
+ }
+ format_string = "%s\n\nUsage: %s %s\n\n";
+ if(*usage_string == 0)
+ format_string = "%s\n\nNo help available.\n\n";
+ fprintf(stderr, format_string,
+ full_version, applet_using->name, usage_string);
exit(EXIT_FAILURE);
}
+
static void verror_msg(const char *s, va_list p)
{
fflush(stdout);
extern int get_kernel_revision(void)
{
struct utsname name;
- int major = 0, minor = 0, patch = 0;
+ char *s;
+ int i, r;
if (uname(&name) == -1) {
perror_msg("cannot get system information");
return (0);
}
- major = atoi(strtok(name.release, "."));
- minor = atoi(strtok(NULL, "."));
- patch = atoi(strtok(NULL, "."));
- return major * 65536 + minor * 256 + patch;
+
+ s = name.release;
+ r = 0;
+ for (i=0 ; i<3 ; i++) {
+ r = r * 256 + atoi(strtok(s, "."));
+ s = NULL;
+ }
+ return r;
}
#endif /* BB_INIT */
#if defined BB_MOUNT || defined BB_UMOUNT
-#ifndef __NR_umount2
-static const int __NR_umount2 = 52;
-#endif
-
/* Include our own version of <sys/mount.h>, since libc5 doesn't
* know about umount2 */
extern _syscall1(int, umount, const char *, special_file);
-extern _syscall2(int, umount2, const char *, special_file, int, flags);
extern _syscall5(int, mount, const char *, special_file, const char *, dir,
const char *, fstype, unsigned long int, rwflag, const void *, data);
+#ifndef __NR_umount2
+# warning This kernel does not support the umount2 syscall
+# warning The umount2 system call is being stubbed out...
+ int umount2(const char * special_file, int flags)
+ {
+ /* BusyBox was compiled against a kernel that did not support
+ * the umount2 system call. To make this application work,
+ * you will need to recompile with a kernel supporting the
+ * umount2 system call.
+ */
+ fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n");
+ fprintf(stderr, "with a kernel supporting the umount2 system call. -Erik\n\n");
+ errno=ENOSYS;
+ return -1;
+ }
+# else
+ extern _syscall2(int, umount2, const char *, special_file, int, flags);
+# endif
#endif
-#if defined BB_INSMOD || defined BB_LSMOD
+
+
+#if defined BB_FEATURE_NEW_MODULE_INTERFACE && ( defined BB_INSMOD || defined BB_LSMOD )
#ifndef __NR_query_module
static const int __NR_query_module = 167;
#endif
#endif
-#if defined (BB_CP_MV)
+#if defined (BB_CP_MV) || defined BB_DPKG
/*
* 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
perror_msg("%s", fileName);
return FALSE;
}
+ status = TRUE;
while ((next = readdir(dir)) != NULL) {
- char nextFile[BUFSIZ + 1];
+ char nextFile[PATH_MAX];
if ((strcmp(next->d_name, "..") == 0)
- || (strcmp(next->d_name, ".") == 0)) {
+ || (strcmp(next->d_name, ".") == 0)) {
continue;
}
- if (strlen(fileName) + strlen(next->d_name) + 1 > BUFSIZ) {
+ if (strlen(fileName) + strlen(next->d_name) + 1 > PATH_MAX) {
error_msg(name_too_long);
return FALSE;
}
memset(nextFile, 0, sizeof(nextFile));
- sprintf(nextFile, "%s/%s", fileName, next->d_name);
- status =
- recursive_action(nextFile, TRUE, followLinks, depthFirst,
- fileAction, dirAction, userData);
- if (status == FALSE) {
- closedir(dir);
- return FALSE;
+ if (fileName[strlen(fileName)-1] == '/')
+ sprintf(nextFile, "%s%s", fileName, next->d_name);
+ else
+ sprintf(nextFile, "%s/%s", fileName, next->d_name);
+ if (recursive_action(nextFile, TRUE, followLinks, depthFirst,
+ fileAction, dirAction, userData) == FALSE) {
+ status = FALSE;
}
}
- status = closedir(dir);
- if (status < 0) {
- perror_msg("%s", fileName);
- return FALSE;
- }
+ closedir(dir);
if (dirAction != NULL && depthFirst == TRUE) {
- status = dirAction(fileName, &statbuf, userData);
- if (status == FALSE) {
+ if (dirAction(fileName, &statbuf, userData) == FALSE) {
perror_msg("%s", fileName);
return FALSE;
}
}
+ if (status == FALSE)
+ return FALSE;
} else {
if (fileAction == NULL)
return TRUE;
|| defined (BB_MKFIFO) || defined (BB_MKNOD) || defined (BB_AR)
/* [ugoa]{+|-|=}[rwxst] */
-
-
extern int parse_mode(const char *s, mode_t * theMode)
{
- mode_t andMode =
+ static const mode_t group_set[] = {
+ S_ISUID | S_IRWXU, /* u */
+ S_ISGID | S_IRWXG, /* g */
+ S_IRWXO, /* o */
+ S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO /* a */
+ };
+
+ static const mode_t mode_set[] = {
+ S_IRUSR | S_IRGRP | S_IROTH, /* r */
+ S_IWUSR | S_IWGRP | S_IWOTH, /* w */
+ S_IXUSR | S_IXGRP | S_IXOTH, /* x */
+ S_ISUID | S_ISGID, /* s */
+ S_ISVTX /* t */
+ };
+
+ static const char group_string[] = "ugoa";
+ static const char mode_string[] = "rwxst";
+
+ const char *p;
+ mode_t andMode =
S_ISVTX | S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
mode_t orMode = 0;
- mode_t mode = 0;
- mode_t groups = 0;
+ mode_t mode;
+ mode_t groups;
char type;
char c;
- if (s==NULL)
+ if (s==NULL) {
return (FALSE);
+ }
do {
- for (;;) {
- switch (c = *s++) {
- case '\0':
- return -1;
- case 'u':
- groups |= S_ISUID | S_IRWXU;
- continue;
- case 'g':
- groups |= S_ISGID | S_IRWXG;
- continue;
- case 'o':
- groups |= S_IRWXO;
- continue;
- case 'a':
- groups |= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
- continue;
- case '+':
+ mode = 0;
+ groups = 0;
+ NEXT_GROUP:
+ if ((c = *s++) == '\0') {
+ return -1;
+ }
+ for (p=group_string ; *p ; p++) {
+ if (*p == c) {
+ groups |= group_set[(int)(p-group_string)];
+ goto NEXT_GROUP;
+ }
+ }
+ switch (c) {
case '=':
+ case '+':
case '-':
type = c;
- if (groups == 0) /* The default is "all" */
- groups |=
- S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
+ if (groups == 0) { /* The default is "all" */
+ groups |= S_ISUID | S_ISGID | S_ISVTX
+ | S_IRWXU | S_IRWXG | S_IRWXO;
+ }
break;
default:
- if (isdigit(c) && c >= '0' && c <= '7' &&
- mode == 0 && groups == 0) {
+ if ((c < '0') || (c > '7') || (mode | groups)) {
+ return (FALSE);
+ } else {
*theMode = strtol(--s, NULL, 8);
return (TRUE);
- } else
- return (FALSE);
- }
- break;
+ }
}
- while ((c = *s++) != '\0') {
- switch (c) {
- case ',':
- break;
- case 'r':
- mode |= S_IRUSR | S_IRGRP | S_IROTH;
- continue;
- case 'w':
- mode |= S_IWUSR | S_IWGRP | S_IWOTH;
- continue;
- case 'x':
- mode |= S_IXUSR | S_IXGRP | S_IXOTH;
- continue;
- case 's':
- mode |= S_IXGRP | S_ISUID | S_ISGID;
- continue;
- case 't':
- mode |= 0;
- continue;
- default:
- *theMode &= andMode;
- *theMode |= orMode;
- return (TRUE);
+ NEXT_MODE:
+ if (((c = *s++) != '\0') && (c != ',')) {
+ for (p=mode_string ; *p ; p++) {
+ if (*p == c) {
+ mode |= mode_set[(int)(p-mode_string)];
+ goto NEXT_MODE;
+ }
}
- break;
+ break; /* We're done so break out of loop.*/
}
switch (type) {
- case '=':
- andMode &= ~(groups);
- /* fall through */
- case '+':
- orMode |= mode & groups;
- break;
- case '-':
- andMode &= ~(mode & groups);
- orMode &= andMode;
- break;
+ case '=':
+ andMode &= ~(groups); /* Now fall through. */
+ case '+':
+ orMode |= mode & groups;
+ break;
+ case '-':
+ andMode &= ~(mode & groups);
+ orMode &= ~(mode & groups);
+ break;
}
} while (c == ',');
+
*theMode &= andMode;
*theMode |= orMode;
- return (TRUE);
-}
+ return TRUE;
+}
#endif
/* BB_CHMOD_CHOWN_CHGRP || BB_MKDIR || BB_MKFIFO || BB_MKNOD */
#if defined BB_CHMOD_CHOWN_CHGRP || defined BB_PS || defined BB_LS \
|| defined BB_TAR || defined BB_ID || defined BB_LOGGER \
|| defined BB_LOGNAME || defined BB_WHOAMI || defined BB_SH
+
+#if defined BB_CHMOD_CHOWN_CHGRP || defined BB_ID
/* returns a uid given a username */
-long my_getpwnam(char *name)
+long my_getpwnam(const char *name)
{
struct passwd *myuser;
myuser = getpwnam(name);
if (myuser==NULL)
- return(-1);
+ error_msg_and_die("unknown user name: %s", name);
return myuser->pw_uid;
}
/* returns a gid given a group name */
-long my_getgrnam(char *name)
+long my_getgrnam(const char *name)
{
struct group *mygroup;
mygroup = getgrnam(name);
if (mygroup==NULL)
- return(-1);
+ error_msg_and_die("unknown group name: %s", name);
return (mygroup->gr_gid);
}
+#endif
/* gets a username given a uid */
void my_getpwuid(char *name, long uid)
#if defined BB_ID
/* gets a gid given a user name */
-long my_getpwnamegid(char *name)
+long my_getpwnamegid(const char *name)
{
struct group *mygroup;
struct passwd *myuser;
myuser=getpwnam(name);
if (myuser==NULL)
- error_msg_and_die( "unknown user name: %s", name);
+ error_msg_and_die("unknown user name: %s", name);
mygroup = getgrgid(myuser->pw_gid);
if (mygroup==NULL)
- error_msg_and_die( "unknown gid %ld", (long)myuser->pw_gid);
+ error_msg_and_die("unknown gid %ld", (long)myuser->pw_gid);
return mygroup->gr_gid;
}
}
#endif
-#if defined BB_NFSMOUNT || defined BB_LS || defined BB_SH || defined BB_WGET || \
- defined BB_DPKG_DEB || defined BB_TAR
+#if defined BB_NFSMOUNT || defined BB_LS || defined BB_SH || \
+ defined BB_WGET || defined BB_DPKG_DEB || defined BB_TAR || \
+ defined BB_LN
# ifndef DMALLOC
extern char * xstrdup (const char *s) {
char *t;
if (s == NULL)
error_msg_and_die("xstrndup bug");
- t = xmalloc(n+1);
- strncpy(t,s,n);
- t[n] = 0;
-
- return t;
+ t = xmalloc(++n);
+
+ return safe_strncpy(t,s,n);
}
#endif
+#if defined BB_IFCONFIG || defined BB_ROUTE || defined BB_NFSMOUNT || \
+ defined BB_FEATURE_MOUNT_LOOP
+/* Like strncpy but make sure the resulting string is always 0 terminated. */
+extern char * safe_strncpy(char *dst, const char *src, size_t size)
+{
+ dst[size-1] = '\0';
+ return strncpy(dst, src, size-1);
+}
+#endif
#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT)
extern int vdprintf(int d, const char *format, va_list ap)
*loopro = (mode == O_RDONLY);
memset(&loopinfo, 0, sizeof(loopinfo));
- strncpy(loopinfo.lo_name, file, LO_NAME_SIZE);
- loopinfo.lo_name[LO_NAME_SIZE - 1] = 0;
+ safe_strncpy(loopinfo.lo_name, file, LO_NAME_SIZE);
loopinfo.lo_offset = offset;
sprintf(dev, "/dev/loop%d", i);
if (stat(dev, &statbuf) == 0 && S_ISBLK(statbuf.st_mode)) {
if ((fd = open(dev, O_RDONLY)) >= 0) {
- if (ioctl(fd, LOOP_GET_STATUS, &loopinfo) == -1) {
+ if (ioctl(fd, LOOP_GET_STATUS, &loopinfo) != 0) {
if (errno == ENXIO) { /* probably free */
close(fd);
return strdup(dev);
#if defined BB_ECHO || defined BB_SH || defined BB_TR
char process_escape_sequence(char **ptr)
{
- char c;
-
- switch (c = *(*ptr)++) {
- case 'a':
- c = '\a';
- break;
- case 'b':
- c = '\b';
- break;
- case 'f':
- c = '\f';
- break;
- case 'n':
- c = '\n';
- break;
- case 'r':
- c = '\r';
- break;
- case 't':
- c = '\t';
- break;
- case 'v':
- c = '\v';
- break;
- case '\\':
- c = '\\';
- break;
- case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7':
- c -= '0';
- if ('0' <= **ptr && **ptr <= '7') {
- c = c * 8 + (*(*ptr)++ - '0');
- if ('0' <= **ptr && **ptr <= '7')
- c = c * 8 + (*(*ptr)++ - '0');
- }
- break;
- default:
- (*ptr)--;
- c = '\\';
- break;
- }
- return c;
+ static const char charmap[] = {
+ 'a', 'b', 'f', 'n', 'r', 't', 'v', '\\', 0,
+ '\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '\\' };
+
+ const char *p;
+ char *q;
+ int num_digits;
+ unsigned int n;
+
+ n = 0;
+ q = *ptr;
+
+ for ( num_digits = 0 ; num_digits < 3 ; ++num_digits) {
+ if ((*q < '0') || (*q > '7')) { /* not a digit? */
+ break;
+ }
+ n = n * 8 + (*q++ - '0');
+ }
+
+ if (num_digits == 0) { /* mnemonic escape sequence? */
+ for (p=charmap ; *p ; p++) {
+ if (*p == *q) {
+ q++;
+ break;
+ }
+ }
+ n = *(p+(sizeof(charmap)/2));
+ }
+
+ /* doesn't hurt to fall through to here from mnemonic case */
+ if (n > UCHAR_MAX) { /* is octal code too big for a char? */
+ n /= 8; /* adjust value and */
+ --q; /* back up one char */
+ }
+
+ *ptr = q;
+ return (char) n;
}
#endif
#if defined BB_HOSTNAME || defined BB_LOADACM || defined BB_MORE \
|| defined BB_SED || defined BB_SH || defined BB_TAR || defined BB_UNIQ \
|| defined BB_WC || defined BB_CMP || defined BB_SORT || defined BB_WGET \
- || defined BB_MOUNT
+ || defined BB_MOUNT || defined BB_ROUTE
FILE *xfopen(const char *path, const char *mode)
{
FILE *fp;
applet_name_compare);
}
-#if defined BB_DD || defined BB_TAIL
-unsigned long parse_number(const char *numstr, struct suffix_mult *suffixes)
+void run_applet_by_name(const char *name, int argc, char **argv)
+{
+ /* Do a binary search to find the applet entry given the name. */
+ if ((applet_using = find_applet_by_name(name)) != NULL) {
+ applet_name = applet_using->name;
+ if (argv[1] && strcmp(argv[1], "--help") == 0)
+ show_usage();
+ exit((*(applet_using->main)) (argc, argv));
+ }
+}
+
+#if defined BB_DD || defined BB_TAIL || defined BB_STTY
+unsigned long parse_number(const char *numstr,
+ const struct suffix_mult *suffixes)
{
- struct suffix_mult *sm;
+ const struct suffix_mult *sm;
unsigned long int ret;
int len;
char *end;
if (numstr == end)
error_msg_and_die("invalid number `%s'", numstr);
while (end[0] != '\0') {
- for (sm = suffixes; sm->suffix != NULL; sm++) {
- len = strlen(sm->suffix);
- if (strncmp(sm->suffix, end, len) == 0) {
- ret *= sm->mult;
- end += len;
- break;
- }
+ sm = suffixes;
+ while ( sm != 0 ) {
+ if(sm->suffix) {
+ len = strlen(sm->suffix);
+ if (strncmp(sm->suffix, end, len) == 0) {
+ ret *= sm->mult;
+ end += len;
+ break;
+ }
+ sm++;
+
+ } else
+ sm = 0;
}
- if (sm->suffix == NULL)
+ if (sm == 0)
error_msg_and_die("invalid number `%s'", numstr);
}
return ret;
#endif
#ifdef BB_FEATURE_HUMAN_READABLE
-char *format(unsigned long val, unsigned long hr)
+const char *make_human_readable_str(unsigned long val, unsigned long hr)
{
+ int i=0;
static char str[10] = "\0";
+ static const char strings[] = { 'k', 'M', 'G', 'T', 0 };
+ unsigned long divisor = 1;
if(val == 0)
return("0");
if(hr)
snprintf(str, 9, "%ld", val/hr);
- else if(val >= GIGABYTE)
- snprintf(str, 9, "%.1LfG", ((long double)(val)/GIGABYTE));
- else if(val >= MEGABYTE)
- snprintf(str, 9, "%.1LfM", ((long double)(val)/MEGABYTE));
- else if(val >= KILOBYTE)
- snprintf(str, 9, "%.1Lfk", ((long double)(val)/KILOBYTE));
- else
- snprintf(str, 9, "%ld", (val));
+ else {
+ while(val >= divisor && i <= 4) {
+ divisor=divisor<<10, i++;
+ }
+ divisor=divisor>>10, i--;
+ snprintf(str, 9, "%.1Lf%c", (long double)(val)/divisor, strings[i]);
+ }
return(str);
}
#endif
-#if defined(BB_GREP) || defined(BB_HOSTNAME) || defined(BB_SED) || defined(BB_TAR) || defined(BB_WGET) || defined(BB_XARGS)
+#if defined(BB_GREP) || defined(BB_HOSTNAME) || defined(BB_SED) || defined(BB_TAR) || defined(BB_WGET) || defined(BB_XARGS) || defined(BB_SH)
void chomp(char *s)
{
size_t len = strlen(s);