/* same conditions as recursiveAction */
#define bb_need_name_too_long
#endif
+#define bb_need_memory_exhausted
#define BB_DECLARE_EXTERN
#include "messages.c"
#include <dirent.h>
#include <time.h>
#include <utime.h>
-#include <sys/stat.h>
#include <unistd.h>
#include <ctype.h>
-#include <sys/param.h> /* for PATH_MAX */
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/utsname.h> /* for uname(2) */
#if defined BB_FEATURE_MOUNT_LOOP
#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <linux/loop.h>
+#include <linux/loop.h> /* Pull in loop device support */
+#endif
+
+/* Busybox mount uses either /proc/filesystems or /dev/mtab to get the
+ * list of available filesystems used for the -t auto option */
+#if defined BB_FEATURE_USE_PROCFS && defined BB_FEATURE_USE_DEVPS_PATCH
+//#error Sorry, but busybox can't use both /proc and /dev/ps at the same time -- Pick one and try again.
+#error "Sorry, but busybox can't use both /proc and /dev/ps at the same time -- Pick one and try again."
#endif
# if defined BB_MTAB
const char mtab_file[] = "/etc/mtab";
# else
-# error With (BB_MOUNT||BB_UMOUNT||BB_DF) defined, you must define either BB_MTAB or BB_FEATURE_USE_PROCFS
+# if defined BB_FEATURE_USE_DEVPS_PATCH
+const char mtab_file[] = "/dev/mtab";
+# else
+# error With (BB_MOUNT||BB_UMOUNT||BB_DF) defined, you must define either BB_MTAB or ( BB_FEATURE_USE_PROCFS | BB_FEATURE_USE_DEVPS_PATCH)
# endif
# endif
+# endif
#endif
-
extern void usage(const char *usage)
{
fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n\n",
exit FALSE;
}
+extern void errorMsg(const char *s, ...)
+{
+ va_list p;
-#if defined (BB_INIT) || defined (BB_PS)
+ va_start(p, s);
+ fflush(stdout);
+ vfprintf(stderr, s, p);
+ va_end(p);
+ fflush(stderr);
+}
-#if ! defined BB_FEATURE_USE_PROCFS
-#error Sorry, I depend on the /proc filesystem right now.
-#endif
+extern void fatalError(const char *s, ...)
+{
+ va_list p;
+
+ va_start(p, s);
+ fflush(stdout);
+ vfprintf(stderr, s, p);
+ va_end(p);
+ fflush(stderr);
+ exit( FALSE);
+}
+
+#if defined BB_INIT
/* Returns kernel version encoded as major*65536 + minor*256 + patch,
* so, for example, to check if the kernel is greater than 2.2.11:
- * if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> }
+ * if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> }
*/
-int get_kernel_revision()
+extern int get_kernel_revision(void)
{
- FILE *file;
+ struct utsname name;
int major = 0, minor = 0, patch = 0;
- file = fopen("/proc/sys/kernel/osrelease", "r");
- if (file == NULL) {
- /* bummer, /proc must not be mounted... */
+ if (uname(&name) == -1) {
+ perror("cannot get system information");
return (0);
}
- fscanf(file, "%d.%d.%d", &major, &minor, &patch);
- fclose(file);
+ sscanf(name.version, "%d.%d.%d", &major, &minor, &patch);
return major * 65536 + minor * 256 + patch;
}
-#endif /* BB_INIT || BB_PS */
+#endif /* BB_INIT */
+
+
+
+#if defined BB_FREE || defined BB_INIT || defined BB_UNAME || defined BB_UPTIME
+#include <sys/syscall.h>
+_syscall1(int, sysinfo, struct sysinfo *, info);
+#endif /* BB_INIT */
+
+#if defined BB_MOUNT || defined BB_UMOUNT
+#include <sys/syscall.h>
+
+#ifndef __NR_umount2
+#define __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);
+#endif
+
+
+
+#if defined (BB_CP_MV) || defined (BB_DU)
+
+#define HASH_SIZE 311 /* Should be prime */
+#define hash_inode(i) ((i) % HASH_SIZE)
+
+static ino_dev_hashtable_bucket_t *ino_dev_hashtable[HASH_SIZE];
+
+/*
+ * Return 1 if statbuf->st_ino && statbuf->st_dev are recorded in
+ * `ino_dev_hashtable', else return 0
+ *
+ * If NAME is a non-NULL pointer to a character pointer, and there is
+ * a match, then set *NAME to the value of the name slot in that
+ * bucket.
+ */
+int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name)
+{
+ ino_dev_hashtable_bucket_t *bucket;
+
+ bucket = ino_dev_hashtable[hash_inode(statbuf->st_ino)];
+ while (bucket != NULL) {
+ if ((bucket->ino == statbuf->st_ino) &&
+ (bucket->dev == statbuf->st_dev))
+ {
+ if (name) *name = bucket->name;
+ return 1;
+ }
+ bucket = bucket->next;
+ }
+ return 0;
+}
+
+/* Add statbuf to statbuf hash table */
+void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name)
+{
+ int i;
+ size_t s;
+ ino_dev_hashtable_bucket_t *bucket;
+
+ i = hash_inode(statbuf->st_ino);
+ s = name ? strlen(name) : 0;
+ bucket = xmalloc(sizeof(ino_dev_hashtable_bucket_t) + s);
+ bucket->ino = statbuf->st_ino;
+ bucket->dev = statbuf->st_dev;
+ if (name)
+ strcpy(bucket->name, name);
+ else
+ bucket->name[0] = '\0';
+ bucket->next = ino_dev_hashtable[i];
+ ino_dev_hashtable[i] = bucket;
+}
+/* Clear statbuf hash table */
+void reset_ino_dev_hashtable(void)
+{
+ int i;
+ ino_dev_hashtable_bucket_t *bucket;
+
+ for (i = 0; i < HASH_SIZE; i++) {
+ while (ino_dev_hashtable[i] != NULL) {
+ bucket = ino_dev_hashtable[i]->next;
+ free(ino_dev_hashtable[i]);
+ ino_dev_hashtable[i] = bucket;
+ }
+ }
+}
+#endif /* BB_CP_MV || BB_DU */
#if defined (BB_CP_MV) || defined (BB_DU) || defined (BB_LN)
/*
* Return TRUE if a fileName is a directory.
* Nonexistant files return FALSE.
*/
-int isDirectory(const char *fileName, const int followLinks)
+int isDirectory(const char *fileName, const int followLinks, struct stat *statBuf)
{
- struct stat statBuf;
int status;
+ int didMalloc = 0;
+
+ if (statBuf == NULL) {
+ statBuf = (struct stat *)xmalloc(sizeof(struct stat));
+ ++didMalloc;
+ }
if (followLinks == TRUE)
- status = stat(fileName, &statBuf);
+ status = stat(fileName, statBuf);
else
- status = lstat(fileName, &statBuf);
+ status = lstat(fileName, statBuf);
- if (status < 0)
- return FALSE;
- if (S_ISDIR(statBuf.st_mode))
- return TRUE;
- return FALSE;
+ if (status < 0 || !(S_ISDIR(statBuf->st_mode))) {
+ status = FALSE;
+ }
+ else status = TRUE;
+
+ if (didMalloc) {
+ free(statBuf);
+ statBuf = NULL;
+ }
+ return status;
}
#endif
#if defined (BB_CP_MV)
/*
- * 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.)
- * -Erik Andersen
+ * 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 indicated if attributes cannot be set.)
+ * -Erik Andersen
*/
int
copyFile(const char *srcName, const char *destName,
- int setModes, int followLinks)
+ int setModes, int followLinks, int forceFlag)
{
int rfd;
int wfd;
else
status = lstat(destName, &dstStatBuf);
- if (status < 0) {
+ if (status < 0 || forceFlag==TRUE) {
+ unlink(destName);
dstStatBuf.st_ino = -1;
dstStatBuf.st_dev = -1;
}
return FALSE;
}
} else if (S_ISLNK(srcStatBuf.st_mode)) {
- char link_val[PATH_MAX + 1];
+ char link_val[BUFSIZ + 1];
int link_size;
//fprintf(stderr, "copying link %s to %s\n", srcName, destName);
- /* Warning: This could possibly truncate silently, to PATH_MAX chars */
- link_size = readlink(srcName, &link_val[0], PATH_MAX);
+ /* Warning: This could possibly truncate silently, to BUFSIZ chars */
+ link_size = readlink(srcName, &link_val[0], BUFSIZ);
if (link_size < 0) {
perror(srcName);
return FALSE;
}
#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
if (setModes == TRUE) {
- if (lchown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid) < 0) {
- perror(destName);
- return FALSE;
- }
+ /* Try to set owner, but fail silently like GNU cp */
+ lchown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid);
}
#endif
return TRUE;
#if defined (BB_CHMOD_CHOWN_CHGRP) \
- || defined (BB_CP_MV) \
- || defined (BB_FIND) \
- || defined (BB_LS) \
- || defined (BB_INSMOD)
+ || defined (BB_CP_MV) \
+ || defined (BB_FIND) \
+ || defined (BB_INSMOD) \
+ || defined (BB_RM) \
+ || defined (BB_TAR)
+
/*
* Walk down all the directories under the specified
* location, and do something (something specified
int recursiveAction(const char *fileName,
int recurse, int followLinks, int depthFirst,
int (*fileAction) (const char *fileName,
- struct stat * statbuf),
+ struct stat * statbuf,
+ void* userData),
int (*dirAction) (const char *fileName,
- struct stat * statbuf))
+ struct stat * statbuf,
+ void* userData),
+ void* userData)
{
int status;
struct stat statbuf;
if (fileAction == NULL)
return TRUE;
else
- return fileAction(fileName, &statbuf);
+ return fileAction(fileName, &statbuf, userData);
}
if (recurse == FALSE) {
if (S_ISDIR(statbuf.st_mode)) {
if (dirAction != NULL)
- return (dirAction(fileName, &statbuf));
+ return (dirAction(fileName, &statbuf, userData));
else
return TRUE;
}
return FALSE;
}
if (dirAction != NULL && depthFirst == FALSE) {
- status = dirAction(fileName, &statbuf);
+ status = dirAction(fileName, &statbuf, userData);
if (status == FALSE) {
perror(fileName);
return FALSE;
}
}
while ((next = readdir(dir)) != NULL) {
- char nextFile[PATH_MAX + 1];
+ char nextFile[BUFSIZ + 1];
if ((strcmp(next->d_name, "..") == 0)
|| (strcmp(next->d_name, ".") == 0)) {
continue;
}
- if (strlen(fileName) + strlen(next->d_name) + 1 > PATH_MAX) {
+ if (strlen(fileName) + strlen(next->d_name) + 1 > BUFSIZ) {
fprintf(stderr, name_too_long, "ftw");
return FALSE;
}
+ memset(nextFile, 0, sizeof(nextFile));
sprintf(nextFile, "%s/%s", fileName, next->d_name);
status =
recursiveAction(nextFile, TRUE, followLinks, depthFirst,
- fileAction, dirAction);
+ fileAction, dirAction, userData);
if (status < 0) {
closedir(dir);
return FALSE;
return FALSE;
}
if (dirAction != NULL && depthFirst == TRUE) {
- status = dirAction(fileName, &statbuf);
+ status = dirAction(fileName, &statbuf, userData);
if (status == FALSE) {
perror(fileName);
return FALSE;
if (fileAction == NULL)
return TRUE;
else
- return fileAction(fileName, &statbuf);
+ return fileAction(fileName, &statbuf, userData);
}
return TRUE;
}
{
char *cp;
char *cpOld;
- char buf[PATH_MAX + 1];
+ char buf[BUFSIZ + 1];
int retVal = 0;
strcpy(buf, name);
+#if defined BB_CHMOD_CHOWN_CHGRP || defined BB_PS || defined BB_LS || defined BB_TAR || defined BB_ID
-
-#if defined (BB_CHMOD_CHOWN_CHGRP) || defined (BB_PS)
-
-/* Use this to avoid needing the glibc NSS stuff
- * This uses storage buf to hold things.
- * */
-uid_t my_getid(const char *filename, char *name, uid_t id)
+/* This parses entries in /etc/passwd and /etc/group. This is desirable
+ * for BusyBox, since we want to avoid using the glibc NSS stuff, which
+ * increases target size and is often not needed or wanted for embedded
+ * systems.
+ *
+ * /etc/passwd entries look like this:
+ * root:x:0:0:root:/root:/bin/bash
+ * and /etc/group entries look like this:
+ * root:x:0:
+ *
+ * This uses buf as storage to hold things.
+ *
+ */
+unsigned long my_getid(const char *filename, char *name, unsigned long id, unsigned long *gid)
{
FILE *file;
char *rname, *start, *end, buf[128];
- uid_t rid;
+ unsigned long rid;
+ unsigned long rgid = 0;
file = fopen(filename, "r");
if (file == NULL) {
- perror(filename);
+ /* Do not complain. It is ok for /etc/passwd and
+ * friends to be missing... */
return (-1);
}
if (buf[0] == '#')
continue;
+ /* username/group name */
start = buf;
end = strchr(start, ':');
if (end == NULL)
*end = '\0';
rname = start;
+ /* password */
start = end + 1;
end = strchr(start, ':');
if (end == NULL)
continue;
+ /* uid in passwd, gid in group */
start = end + 1;
- rid = (uid_t) strtol(start, &end, 10);
+ rid = (unsigned long) strtol(start, &end, 10);
if (end == start)
continue;
+ /* gid in passwd */
+ start = end + 1;
+ rgid = (unsigned long) strtol(start, &end, 10);
+
if (name) {
if (0 == strcmp(rname, name)) {
+ if (gid) *gid = rgid;
fclose(file);
return (rid);
}
}
if (id != -1 && id == rid) {
strncpy(name, rname, 8);
+ if (gid) *gid = rgid;
fclose(file);
return (TRUE);
}
return (-1);
}
-uid_t my_getpwnam(char *name)
+/* returns a uid given a username */
+unsigned long my_getpwnam(char *name)
{
- return my_getid("/etc/passwd", name, -1);
+ return my_getid("/etc/passwd", name, -1, NULL);
}
-gid_t my_getgrnam(char *name)
+/* returns a gid given a group name */
+unsigned long my_getgrnam(char *name)
{
- return my_getid("/etc/group", name, -1);
+ return my_getid("/etc/group", name, -1, NULL);
}
-void my_getpwuid(char *name, uid_t uid)
+/* gets a username given a uid */
+void my_getpwuid(char *name, unsigned long uid)
{
- my_getid("/etc/passwd", name, uid);
+ my_getid("/etc/passwd", name, uid, NULL);
}
-void my_getgrgid(char *group, gid_t gid)
+/* gets a groupname given a gid */
+void my_getgrgid(char *group, unsigned long gid)
{
- my_getid("/etc/group", group, gid);
+ my_getid("/etc/group", group, gid, NULL);
}
+/* gets a gid given a user name */
+unsigned long my_getpwnamegid(char *name)
+{
+ unsigned long gid;
+ my_getid("/etc/passwd", name, -1, &gid);
+ return gid;
+}
-#endif /* BB_CHMOD_CHOWN_CHGRP || BB_PS */
-
-
-
+#endif /* BB_CHMOD_CHOWN_CHGRP || BB_PS || BB_LS || BB_TAR || BB_ID */
-#if (defined BB_CHVT) || (defined BB_DEALLOCVT)
+#if (defined BB_CHVT) || (defined BB_DEALLOCVT) || (defined BB_SETKEYCODES)
-#include <linux/kd.h>
-#include <sys/ioctl.h>
+/* From <linux/kd.h> */
+#define KDGKBTYPE 0x4B33 /* get keyboard type */
+#define KB_84 0x01
+#define KB_101 0x02 /* this is what we always answer */
int is_a_console(int fd)
{
}
-#endif /* BB_CHVT || BB_DEALLOCVT */
+#endif /* BB_CHVT || BB_DEALLOCVT || BB_SETKEYCODES */
#if !defined BB_REGEXP && (defined BB_GREP || defined BB_SED)
if (strcmp(needle, newNeedle) == 0)
return FALSE;
- oldhayStack = (char *) malloc((unsigned) (strlen(haystack)));
+ oldhayStack = (char *) xmalloc((unsigned) (strlen(haystack)));
while (where != NULL) {
foundOne++;
strcpy(oldhayStack, haystack);
-#if 0
- if (strlen(newNeedle) > strlen(needle)) {
- haystack =
- (char *) realloc(haystack,
- (unsigned) (strlen(haystack) -
- strlen(needle) +
- strlen(newNeedle)));
- }
-#endif
for (slider = haystack, slider1 = oldhayStack; slider != where;
slider++, slider1++);
*slider = 0;
#endif /* ! BB_REGEXP && (BB_GREP || BB_SED) */
-#if defined BB_FIND
+#if defined BB_FIND || defined BB_INSMOD
/*
* Routine to see if a text string is matched by a wildcard pattern.
* Returns TRUE if the text is matched, or FALSE if it is not matched
const char *retryText;
int ch;
int found;
+ int len;
retryPat = NULL;
retryText = NULL;
if (*text == ch)
found = TRUE;
}
-
- //if (!found)
+ len=strlen(text);
+ if (found == FALSE && len!=0) {
+ return FALSE;
+ }
if (found == TRUE) {
- pattern = retryPat;
- text = ++retryText;
+ if (strlen(pattern)==0 && len==1) {
+ return TRUE;
+ }
+ if (len!=0) {
+ text++;
+ continue;
+ }
}
/* fall into next case */
return TRUE;
}
-#endif /* BB_FIND */
+#endif /* BB_FIND || BB_INSMOD */
#endif /* BB_INIT BB_SYSLOGD */
-#if defined BB_INIT || defined BB_HALT || defined BB_REBOOT
+#if defined BB_KILLALL || ( defined BB_FEATURE_LINUXRC && ( defined BB_HALT || defined BB_REBOOT || defined BB_POWEROFF ))
+#ifdef BB_FEATURE_USE_DEVPS_PATCH
+#include <linux/devps.h> /* For Erik's nifty devps device driver */
+#endif
+
+#if defined BB_FEATURE_USE_DEVPS_PATCH
+/* findPidByName()
+ *
+ * This finds the pid of the specified process,
+ * by using the /dev/ps device driver.
+ *
+ * Returns a list of all matching PIDs
+ */
+extern pid_t* findPidByName( char* pidName)
+{
+ int fd, i, j;
+ char device[] = "/dev/ps";
+ pid_t num_pids;
+ pid_t* pid_array = NULL;
+ pid_t* pidList=NULL;
+
+ /* open device */
+ fd = open(device, O_RDONLY);
+ if (fd < 0)
+ fatalError( "open failed for `%s': %s\n", device, strerror (errno));
+
+ /* Find out how many processes there are */
+ if (ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids)<0)
+ fatalError( "\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
+
+ /* Allocate some memory -- grab a few extras just in case
+ * some new processes start up while we wait. The kernel will
+ * just ignore any extras if we give it too many, and will trunc.
+ * the list if we give it too few. */
+ pid_array = (pid_t*) calloc( num_pids+10, sizeof(pid_t));
+ pid_array[0] = num_pids+10;
+
+ /* Now grab the pid list */
+ if (ioctl (fd, DEVPS_GET_PID_LIST, pid_array)<0)
+ fatalError( "\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
+
+ /* Now search for a match */
+ for (i=1, j=0; i<pid_array[0] ; i++) {
+ char* p;
+ struct pid_info info;
+
+ info.pid = pid_array[i];
+ if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0)
+ fatalError( "\nDEVPS_GET_PID_INFO: %s\n", strerror (errno));
+
+ /* Make sure we only match on the process name */
+ p=info.command_line+1;
+ while ((*p != 0) && !isspace(*(p)) && (*(p-1) != '\\')) {
+ (p)++;
+ }
+ if (isspace(*(p)))
+ *p='\0';
+
+ if ((strstr(info.command_line, pidName) != NULL)
+ && (strlen(pidName) == strlen(info.command_line))) {
+ pidList=realloc( pidList, sizeof(pid_t) * (j+2));
+ if (pidList==NULL)
+ fatalError(memory_exhausted, "");
+ pidList[j++]=info.pid;
+ }
+ }
+ if (pidList)
+ pidList[j]=0;
+
+ /* Free memory */
+ free( pid_array);
+
+ /* close device */
+ if (close (fd) != 0)
+ fatalError( "close failed for `%s': %s\n",device, strerror (errno));
+ return pidList;
+}
+#else /* BB_FEATURE_USE_DEVPS_PATCH */
#if ! defined BB_FEATURE_USE_PROCFS
#error Sorry, I depend on the /proc filesystem right now.
#endif
-/* findInitPid()
+
+/* findPidByName()
*
- * This finds the pid of init (which is not always 1).
- * Currently, it's implemented by rummaging through the proc filesystem.
+ * This finds the pid of the specified process.
+ * Currently, it's implemented by rummaging through
+ * the proc filesystem.
*
- * [return]
- * 0 failure
- * pid when init's pid is found.
+ * Returns a list of all matching PIDs
*/
-extern pid_t findInitPid()
+extern pid_t* findPidByName( char* pidName)
{
- pid_t init_pid;
- char filename[256];
- char buffer[256];
-
- /* no need to opendir ;) */
- for (init_pid = 1; init_pid < 65536; init_pid++) {
+ DIR *dir;
+ struct dirent *next;
+ pid_t* pidList=NULL;
+ int i=0;
+
+ dir = opendir("/proc");
+ if (!dir)
+ fatalError( "Cannot open /proc: %s\n", strerror (errno));
+
+ while ((next = readdir(dir)) != NULL) {
FILE *status;
+ char filename[256];
+ char buffer[256];
+ char* p;
- sprintf(filename, "/proc/%d/status", init_pid);
+ /* If it isn't a number, we don't want it */
+ if (!isdigit(*next->d_name))
+ continue;
+
+ /* Now open the status file */
+ sprintf(filename, "/proc/%s/status", next->d_name);
status = fopen(filename, "r");
if (!status) {
continue;
fgets(buffer, 256, status);
fclose(status);
- if ((strstr(buffer, "init\n") != NULL)) {
- return init_pid;
+ /* Make sure we only match on the process name */
+ p=buffer+5; /* Skip the name */
+ while ((p)++) {
+ if (*p==0 || *p=='\n') {
+ *p='\0';
+ break;
+ }
+ }
+ p=buffer+6; /* Skip the "Name:\t" */
+
+ if ((strstr(p, pidName) != NULL)
+ && (strlen(pidName) == strlen(p))) {
+ pidList=realloc( pidList, sizeof(pid_t) * (i+2));
+ if (pidList==NULL)
+ fatalError(memory_exhausted, "");
+ pidList[i++]=strtol(next->d_name, NULL, 0);
}
}
- return 0;
+ if (pidList)
+ pidList[i]=0;
+ return pidList;
}
-#endif /* BB_INIT || BB_HALT || BB_REBOOT */
+#endif /* BB_FEATURE_USE_DEVPS_PATCH */
+#endif /* BB_KILLALL || ( BB_FEATURE_LINUXRC && ( BB_HALT || BB_REBOOT || BB_POWEROFF )) */
-#if defined BB_GUNZIP \
- || defined BB_GZIP \
- || defined BB_PRINTF \
- || defined BB_TAIL
+/* this should really be farmed out to libbusybox.a */
extern void *xmalloc(size_t size)
{
void *cp = malloc(size);
- if (cp == NULL) {
- error("out of memory");
- }
+ if (cp == NULL)
+ fatalError(memory_exhausted, "");
return cp;
}
-extern void error(char *msg)
-{
- fprintf(stderr, "\n%s\n", msg);
- exit(1);
+#if defined BB_FEATURE_NFSMOUNT
+extern char * xstrdup (const char *s) {
+ char *t;
+
+ if (s == NULL)
+ return NULL;
+
+ t = strdup (s);
+
+ if (t == NULL)
+ fatalError(memory_exhausted, "");
+
+ return t;
+}
+
+extern char * xstrndup (const char *s, int n) {
+ char *t;
+
+ if (s == NULL)
+ fatalError("xstrndup bug");
+
+ t = xmalloc(n+1);
+ strncpy(t,s,n);
+ t[n] = 0;
+
+ return t;
}
-#endif /* BB_GUNZIP || BB_GZIP || BB_PRINTF || BB_TAIL */
+#endif
+
#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT)
extern int vdprintf(int d, const char *format, va_list ap)
}
#endif /* BB_FEATURE_MOUNT_LOOP */
+#if defined BB_MOUNT || defined BB_DF || ( defined BB_UMOUNT && ! defined BB_MTAB)
+extern int find_real_root_device_name(char* name)
+{
+ DIR *dir;
+ struct dirent *entry;
+ struct stat statBuf, rootStat;
+ char fileName[BUFSIZ];
+
+ if (stat("/", &rootStat) != 0) {
+ errorMsg("could not stat '/'\n");
+ return( FALSE);
+ }
+
+ dir = opendir("/dev");
+ if (!dir) {
+ errorMsg("could not open '/dev'\n");
+ return( FALSE);
+ }
+
+ while((entry = readdir(dir)) != NULL) {
+
+ /* Must skip ".." since that is "/", and so we
+ * would get a false positive on ".." */
+ if (strcmp(entry->d_name, "..") == 0)
+ continue;
+
+ sprintf( fileName, "/dev/%s", entry->d_name);
+
+ if (stat(fileName, &statBuf) != 0)
+ continue;
+ /* Some char devices have the same dev_t as block
+ * devices, so make sure this is a block device */
+ if (! S_ISBLK(statBuf.st_mode))
+ continue;
+ if (statBuf.st_rdev == rootStat.st_rdev) {
+ strcpy(name, fileName);
+ return ( TRUE);
+ }
+ }
+
+ return( FALSE);
+}
+#endif
+
+
+/* get_line_from_file() - This function reads an entire line from a text file
+ * up to a newline. It returns a malloc'ed char * which must be stored and
+ * free'ed by the caller. */
+extern char *get_line_from_file(FILE *file)
+{
+ static const int GROWBY = 80; /* how large we will grow strings by */
+
+ int ch;
+ int idx = 0;
+ char *linebuf = NULL;
+ int linebufsz = 0;
+
+ while (1) {
+ ch = fgetc(file);
+ if (ch == EOF)
+ break;
+ /* grow the line buffer as necessary */
+ if (idx > linebufsz-2)
+ linebuf = realloc(linebuf, linebufsz += GROWBY);
+ linebuf[idx++] = (char)ch;
+ if ((char)ch == '\n')
+ break;
+ }
+
+ if (idx == 0)
+ return NULL;
+
+ linebuf[idx] = 0;
+ return linebuf;
+}
+
+#if defined BB_ECHO || 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 '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;
+}
+#endif
+
+#if defined BB_BASENAME || defined BB_LN
+char *get_last_path_component(char *path)
+{
+ char *s=path+strlen(path)-1;
+
+ /* strip trailing slashes */
+ while (s && *s == '/') {
+ *s-- = '\0';
+ }
+
+ /* find last component */
+ s = strrchr(path, '/');
+ if (s==NULL) return path;
+ else return s+1;
+}
+#endif
+
+#if defined BB_GREP || defined BB_SED
+int bb_regcomp(regex_t *preg, const char *regex, int cflags)
+{
+ int ret;
+ if ((ret = regcomp(preg, regex, cflags)) != 0) {
+ int errmsgsz = regerror(ret, preg, NULL, 0);
+ char *errmsg = xmalloc(errmsgsz);
+ regerror(ret, preg, errmsg, errmsgsz);
+ errorMsg("bb_regcomp: %s\n", errmsg);
+ free(errmsg);
+ regfree(preg);
+ }
+ return ret;
+}
+#endif
/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/
projects / oweals / busybox.git / blobdiff