/* same conditions as recursiveAction */
#define bb_need_name_too_long
#endif
+#define bb_need_memory_exhausted
#define BB_DECLARE_EXTERN
#include "messages.c"
#include <sys/stat.h>
#include <unistd.h>
#include <ctype.h>
-#include <sys/param.h> /* for PATH_MAX */
#include <sys/utsname.h> /* for uname(2) */
#if defined BB_FEATURE_MOUNT_LOOP
exit FALSE;
}
-extern void errorMsg(char *s, ...)
+extern void errorMsg(const char *s, ...)
{
va_list p;
fflush(stderr);
}
-extern void fatalError(char *s, ...)
+extern void fatalError(const char *s, ...)
{
va_list p;
exit( FALSE);
}
-#if defined (BB_INIT) || defined (BB_PS)
+#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)
{
struct utsname name;
int major = 0, minor = 0, patch = 0;
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>
+#include <linux/unistd.h>
+_syscall1(int, sysinfo, struct sysinfo *, info);
+#endif /* BB_INIT */
+
+
#if defined (BB_CP_MV) || defined (BB_DU)
#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 indicated 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>
}
-#endif /* BB_CHVT || BB_DEALLOCVT */
+#endif /* BB_CHVT || BB_DEALLOCVT || BB_SETKEYCODES */
#if !defined BB_REGEXP && (defined BB_GREP || defined BB_SED)
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 */
* This finds the pid of the specified process,
* by using the /dev/ps device driver.
*
- * [return]
- * 0 failure
- * pid when the pid is found.
+ * Returns a list of all matching PIDs
*/
-extern pid_t findPidByName( char* pidName)
+extern pid_t* findPidByName( char* pidName)
{
- int fd, i;
+ int fd, i, j;
char device[] = "/dev/ps";
- pid_t thePid = 0;
pid_t num_pids;
pid_t* pid_array = NULL;
+ pid_t* pidList=NULL;
/* open device */
fd = open(device, O_RDONLY);
fatalError( "\nDEVPS_GET_PID_LIST: %s\n", strerror (errno));
/* Now search for a match */
- for (i=1; i<pid_array[0] ; i++) {
+ 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));
- if ((strstr(info.command_line, pidName) != NULL)) {
- thePid = info.pid;
- break;
+ /* 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);
if (close (fd) != 0)
fatalError( "close failed for `%s': %s\n",device, strerror (errno));
- return thePid;
+ return pidList;
}
#else /* BB_FEATURE_USE_DEVPS_PATCH */
#if ! defined BB_FEATURE_USE_PROCFS
* Currently, it's implemented by rummaging through
* the proc filesystem.
*
- * [return]
- * 0 failure
- * pid when the pid is found.
+ * Returns a list of all matching PIDs
*/
-extern pid_t findPidByName( char* pidName)
+extern pid_t* findPidByName( char* pidName)
{
DIR *dir;
struct dirent *next;
+ pid_t* pidList=NULL;
+ int i=0;
dir = opendir("/proc");
if (!dir)
FILE *status;
char filename[256];
char buffer[256];
+ char* p;
/* If it isn't a number, we don't want it */
if (!isdigit(*next->d_name))
continue;
- /* Now open the command line file */
+ /* Now open the status file */
sprintf(filename, "/proc/%s/status", next->d_name);
status = fopen(filename, "r");
if (!status) {
fgets(buffer, 256, status);
fclose(status);
- if ((strstr(buffer, pidName) != NULL)) {
- return strtol(next->d_name, NULL, 0);
+ /* 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_FEATURE_USE_DEVPS_PATCH */
#endif /* BB_KILLALL || ( BB_FEATURE_LINUXRC && ( BB_HALT || BB_REBOOT || BB_POWEROFF )) */
void *cp = malloc(size);
if (cp == NULL)
- fatalError("out of memory");
+ fatalError(memory_exhausted, "");
return cp;
}
}
#endif /* BB_FEATURE_MOUNT_LOOP */
-#if defined BB_MOUNT
-char* find_real_root_device_name(void)
+#if defined BB_MOUNT || defined BB_DF || ( defined BB_UMOUNT && ! defined BB_MTAB)
+extern int find_real_root_device_name(char* name)
{
- int gotIt=0;
DIR *dir;
struct dirent *entry;
struct stat statBuf, rootStat;
char fileName[BUFSIZ];
- if (stat("/", &rootStat) != 0)
- fatalError("Wierd. I could not stat '/'\n");
+ if (stat("/", &rootStat) != 0) {
+ errorMsg("could not stat '/'\n");
+ return( FALSE);
+ }
- if (!(dir = opendir("/dev"));
- fatalError("Wierd. I could not open '/dev'\n");
+ 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;
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) {
- return (strdup(fileName));
+ strcpy(name, fileName);
+ return ( TRUE);
}
}
- return( NULL);
+ return( FALSE);
}
#endif
+static const int GROWBY = 80; /* how large we will grow strings by */
-#if defined BB_MTAB
-#define whine_if_fstab_is_missing() {}
-#else
-extern void whine_if_fstab_is_missing()
+/* 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)
{
- struct stat statBuf;
+ int ch;
+ int idx = 0;
+ char *linebuf = NULL;
+ int linebufsz = 0;
- if (stat("/etc/fstab", &statBuf) < 0)
- fprintf(stderr,
- "/etc/fstab file missing -- install one to name /dev/root.\n\n");
+ while (1) {
+ ch = fgetc(file);
+ if (ch == EOF)
+ break;
+ /* grow the line buffer as necessary */
+ if (idx > linebufsz-1)
+ 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
projects / oweals / busybox.git / blobdiff