#include <SystemConfiguration/SCP.h>
#include "SCPPrivate.h"
#include <SystemConfiguration/SCD.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/errno.h>
SCPStatus
SCPCommit(SCPSessionRef session)
{
SCPSessionPrivateRef sessionPrivate;
SCPStatus scp_status = SCP_OK;
SCDStatus scd_status;
boolean_t wasLocked;
if (session == NULL) {
return SCP_FAILED;
}
sessionPrivate = (SCPSessionPrivateRef)session;
wasLocked = sessionPrivate->locked;
if (!wasLocked) {
scp_status = SCPLock(session, TRUE);
if (scp_status != SCD_OK) {
SCDLog(LOG_DEBUG, CFSTR(" SCPLock(): %s"), SCPError(scp_status));
return scp_status;
}
}
if (sessionPrivate->changed) {
struct stat statBuf;
int pathLen;
char *newPath;
int fd;
CFDataRef newPrefs;
if (stat(sessionPrivate->path, &statBuf) == -1) {
if (errno == ENOENT) {
bzero(&statBuf, sizeof(statBuf));
statBuf.st_mode = 0644;
statBuf.st_uid = geteuid();
statBuf.st_gid = getegid();
} else {
SCDLog(LOG_DEBUG, CFSTR("stat() failed: %s"), strerror(errno));
scp_status = SCP_FAILED;
goto done;
}
}
pathLen = strlen(sessionPrivate->path) + sizeof("-new");
newPath = CFAllocatorAllocate(NULL, pathLen, 0);
snprintf(newPath, pathLen, "%s-new", sessionPrivate->path);
reopen :
fd = open(newPath, O_WRONLY|O_CREAT, statBuf.st_mode);
if (fd == -1) {
if ((errno == ENOENT) &&
((sessionPrivate->prefsID == NULL) || !CFStringHasPrefix(sessionPrivate->prefsID, CFSTR("/")))) {
char *ch;
ch = strrchr(newPath, '/');
if (ch != NULL) {
int status;
*ch = '\0';
status = mkdir(newPath, 0755);
*ch = '/';
if (status == 0) {
goto reopen;
}
}
}
SCDLog(LOG_DEBUG, CFSTR("SCPCommit open() failed: %s"), strerror(errno));
CFAllocatorDeallocate(NULL, newPath);
scp_status = SCP_FAILED;
goto done;
}
(void)fchown(fd, statBuf.st_uid, statBuf.st_gid);
newPrefs = CFPropertyListCreateXMLData(NULL, sessionPrivate->prefs);
(void) write(fd, CFDataGetBytePtr(newPrefs), CFDataGetLength(newPrefs));
(void) close(fd);
CFRelease(newPrefs);
if (rename(newPath, sessionPrivate->path) == -1) {
SCDLog(LOG_DEBUG, CFSTR("rename() failed: %s"), strerror(errno));
CFAllocatorDeallocate(NULL, newPath);
scp_status = SCP_FAILED;
goto done;
}
CFAllocatorDeallocate(NULL, newPath);
if (stat(sessionPrivate->path, &statBuf) == -1) {
SCDLog(LOG_DEBUG, CFSTR("stat() failed: %s"), strerror(errno));
scp_status = SCP_FAILED;
goto done;
}
CFRelease(sessionPrivate->signature);
sessionPrivate->signature = _SCPSignatureFromStatbuf(&statBuf);
}
if (!sessionPrivate->isRoot) {
goto done;
}
if (sessionPrivate->sessionKeyCommit == NULL) {
sessionPrivate->sessionKeyCommit = _SCPNotificationKey(sessionPrivate->prefsID,
sessionPrivate->perUser,
sessionPrivate->user,
kSCPKeyCommit);
}
scd_status = SCDLock(sessionPrivate->session);
if (scd_status == SCD_OK) {
(void) SCDTouch (sessionPrivate->session, sessionPrivate->sessionKeyCommit);
(void) SCDRemove(sessionPrivate->session, sessionPrivate->sessionKeyCommit);
(void) SCDUnlock(sessionPrivate->session);
} else {
SCDLog(LOG_DEBUG, CFSTR(" SCDLock(): %s"), SCDError(scd_status));
scp_status = SCP_FAILED;
}
done :
if (!wasLocked)
(void) SCPUnlock(session);
sessionPrivate->changed = FALSE;
return scp_status;
}