int IsAbsoluteFileName(const char *f)
{
int off = 0;
// Check for quoted strings
for (off = 0; f[off] == '\"'; off++)
{
}
#ifdef _WIN32
if (IsFileSep(f[off]) && IsFileSep(f[off + 1]))
{
return true;
}
if (isalpha(f[off]) && f[off + 1] == ':' && IsFileSep(f[off + 2]))
{
return true;
}
#endif
if (f[off] == '/')
{
return true;
}
return false;
}
int CompressPath(char *dest, const char *src)
{
char node[CF_BUFSIZE];
int nodelen;
int rootlen;
memset(dest, 0, CF_BUFSIZE);
rootlen = RootDirLength(src);
strncpy(dest, src, rootlen);
for (const char *sp = src + rootlen; *sp != '\0'; sp++)
{
if (IsFileSep(*sp))
{
continue;
}
for (nodelen = 0; (sp[nodelen] != '\0') && (!IsFileSep(sp[nodelen])); nodelen++)
{
if (nodelen > CF_MAXLINKSIZE)
{
Log(LOG_LEVEL_ERR, "Link in path suspiciously large");
return false;
}
}
strncpy(node, sp, nodelen);
node[nodelen] = '\0';
sp += nodelen - 1;
if (strcmp(node, ".") == 0)
{
continue;
}
if (strcmp(node, "..") == 0)
{
if (!ChopLastNode(dest))
{
Log(LOG_LEVEL_DEBUG, "used .. beyond top of filesystem!");
return false;
}
continue;
}
else
{
AddSlash(dest);
}
if (!JoinPath(dest, node))
{
return false;
}
}
return true;
}
char *MapNameCopy(const char *s)
{
Writer *w = StringWriter();
/* c:\a\b -> /cygdrive/c\a\b */
if (s[0] && isalpha(s[0]) && s[1] == ':')
{
WriterWriteF(w, "/cygdrive/%c", s[0]);
s += 2;
}
for (; *s; s++)
{
/* a//b//c -> a/b/c */
/* a\\b\\c -> a\b\c */
if (IsFileSep(*s) && IsFileSep(*(s + 1)))
{
continue;
}
/* a\b\c -> a/b/c */
WriterWriteChar(w, *s == '\\' ? '/' : *s);
}
return StringWriterClose(w);
}
void DeleteRedundantSlashes(char *str)
{
int move_from;
// Invariant: newpos <= oldpos
int oldpos = RootDirLength(str);
int newpos = oldpos;
while (str[oldpos] != '\0')
{
// Skip over subsequent separators.
while (IsFileSep(str[oldpos]))
{
oldpos++;
}
move_from = oldpos;
// And then skip over the next path component.
while (str[oldpos] != '\0' && !IsFileSep(str[oldpos]))
{
oldpos++;
}
// If next character is file separator, move past it, since we want to keep one.
if (IsFileSep(str[oldpos]))
{
oldpos++;
}
int move_len = oldpos - move_from;
memmove(&str[newpos], &str[move_from], move_len);
newpos += move_len;
}
str[newpos] = '\0';
}
int RootDirLength(char *f)
/* Return length of Initial directory in path - */
{
#ifdef NT
int len;
if (IsFileSep(f[0]) && IsFileSep(f[1]))
{
/* UNC style path */
/* Skip over host name */
for (len=2; !IsFileSep(f[len]); len++)
{
if (f[len] == '\0')
{
return len;
}
}
/* Skip over share name */
for (len++; !IsFileSep(f[len]); len++)
{
if (f[len] == '\0')
{
return len;
}
}
/* Skip over file separator */
len++;
return len;
}
if ( isalpha(f[0]) && f[1] == ':' && IsFileSep(f[2]) )
{
return 3;
}
#endif
if (*f == '/')
{
return 1;
}
return 0;
}
static int NTRootDirLength(const char *f)
{
int len;
if (IsFileSep(f[0]) && IsFileSep(f[1]))
{
/* UNC style path */
/* Skip over host name */
for (len = 2; !IsFileSep(f[len]); len++)
{
if (f[len] == '\0')
{
return len;
}
}
/* Skip over share name */
for (len++; !IsFileSep(f[len]); len++)
{
if (f[len] == '\0')
{
return len;
}
}
/* Skip over file separator */
len++;
return len;
}
if (isalpha(f[0]) && f[1] == ':')
{
if (IsFileSep(f[2]))
{
return 3;
}
return 2;
}
return UnixRootDirLength(f);
}
static int UnixRootDirLength(const char *f)
{
if (IsFileSep(*f))
{
return 1;
}
return 0;
}
int IsAbsPath(const char *path)
{
if (IsFileSep(*path))
{
return true;
}
else
{
return false;
}
}
int IsAbsoluteFileName(char *f)
{
#ifdef NT
if (IsFileSep(f[0]) && IsFileSep(f[1]))
{
return true;
}
if ( isalpha(f[0]) && f[1] == ':' && IsFileSep(f[2]) )
{
return true;
}
#endif
if (*f == '/')
{
return true;
}
return false;
}
void AddSlash(char *str)
{
char *sp, *sep = FILE_SEPARATOR_STR;
int f = false, b = false;
if (str == NULL)
{
return;
}
// add root slash on Unix systems
if (strlen(str) == 0)
{
#if !defined(_WIN32)
strcpy(str, "/");
#endif
return;
}
/* Try to see what convention is being used for filenames
in case this is a cross-system copy from Win/Unix */
for (sp = str; *sp != '\0'; sp++)
{
switch (*sp)
{
case '/':
f = true;
break;
case '\\':
b = true;
break;
default:
break;
}
}
if (f && (!b))
{
sep = "/";
}
else if (b && (!f))
{
sep = "\\";
}
if (!IsFileSep(str[strlen(str) - 1]))
{
strcat(str, sep);
}
}
// Can remove several slashes if they are redundant.
void DeleteSlash(char *str)
{
int size = strlen(str);
if ((size == 0) || (str == NULL))
{
return;
}
int root = RootDirLength(str);
while (IsFileSep(str[size - 1]) && size - 1 > root)
{
size--;
}
str[size] = '\0'; /* no-op if we didn't change size */
}
void DeleteSlash(char *str)
{
if ((strlen(str) == 0) || (str == NULL))
{
return;
}
if (strcmp(str, "/") == 0)
{
return;
}
if (IsFileSep(str[strlen(str) - 1]))
{
str[strlen(str) - 1] = '\0';
}
}
const char *FirstFileSeparator(const char *str)
{
assert(str);
assert(strlen(str) > 0);
if(strncmp(str, "\\\\", 2) == 0) // windows share
{
return str + 1;
}
for(const char *pos = str; *pos != '\0'; pos++)
{
if(IsFileSep(*pos))
{
return pos;
}
}
return NULL;
}
const char *LastFileSeparator(const char *str)
/* Return pointer to last file separator in string, or NULL if
string does not contains any file separtors */
{
const char *sp;
/* Walk through string backwards */
sp = str + strlen(str) - 1;
while (sp >= str)
{
if (IsFileSep(*sp))
{
return sp;
}
sp--;
}
return NULL;
}
int CompressPath(char *dest,char *src)
{ char *sp;
char node[CF_BUFSIZE];
int nodelen;
int rootlen;
Debug2("CompressPath(%s,%s)\n",dest,src);
memset(dest,0,CF_BUFSIZE);
rootlen = RootDirLength(src);
strncpy(dest,src,rootlen);
for (sp = src+rootlen; *sp != '\0'; sp++)
{
if (IsFileSep(*sp))
{
continue;
}
for (nodelen = 0; sp[nodelen] != '\0' && !IsFileSep(sp[nodelen]); nodelen++)
{
if (nodelen > CF_MAXLINKSIZE)
{
CfLog(cferror,"Link in path suspiciously large","");
return false;
}
}
strncpy(node, sp, nodelen);
node[nodelen] = '\0';
sp += nodelen - 1;
if (strcmp(node,".") == 0)
{
continue;
}
if (strcmp(node,"..") == 0)
{
if (!ChopLastNode(dest))
{
Debug("cfengine: used .. beyond top of filesystem!\n");
return false;
}
continue;
}
else
{
AddSlash(dest);
}
if (BufferOverflow(dest,node))
{
return false;
}
strcat(dest,node);
}
return true;
}
/**
* @TODO fix the dangerous path lengths
*/
int CompressPath(char *dest, const char *src)
{
char node[CF_BUFSIZE];
int nodelen;
int rootlen;
memset(dest, 0, CF_BUFSIZE);
rootlen = RootDirLength(src);
memcpy(dest, src, rootlen);
for (const char *sp = src + rootlen; *sp != '\0'; sp++)
{
if (IsFileSep(*sp))
{
continue;
}
for (nodelen = 0; (sp[nodelen] != '\0') && (!IsFileSep(sp[nodelen])); nodelen++)
{
if (nodelen > CF_MAXLINKSIZE)
{
Log(LOG_LEVEL_ERR, "Link in path suspiciously large");
return false;
}
}
strncpy(node, sp, nodelen);
node[nodelen] = '\0';
sp += nodelen - 1;
if (strcmp(node, ".") == 0)
{
continue;
}
if (strcmp(node, "..") == 0)
{
if (!ChopLastNode(dest))
{
Log(LOG_LEVEL_DEBUG, "used .. beyond top of filesystem!");
return false;
}
continue;
}
AddSlash(dest);
/* TODO use dest_size parameter instead of CF_BUFSIZE. */
size_t ret = strlcat(dest, node, CF_BUFSIZE);
if (ret >= CF_BUFSIZE)
{
Log(LOG_LEVEL_ERR,
"Internal limit reached in CompressPath(),"
" path too long: '%s' + '%s'",
dest, node);
return false;
}
}
return true;
}
PromiseResult VerifyRelativeLink(EvalContext *ctx, char *destination, const char *source, Attributes attr, const Promise *pp)
{
char *sp, *commonto, *commonfrom;
char buff[CF_BUFSIZE], linkto[CF_BUFSIZE];
int levels = 0;
if (*source == '.')
{
return VerifyLink(ctx, destination, source, attr, pp);
}
if (!CompressPath(linkto, sizeof(linkto), source))
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_INTERRUPTED, pp, attr, "Failed to link '%s' to '%s'", destination, source);
return PROMISE_RESULT_INTERRUPTED;
}
commonto = linkto;
commonfrom = destination;
if (strcmp(commonto, commonfrom) == 0)
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_INTERRUPTED, pp, attr, "Failed to link '%s' to '%s', can't link file '%s' to itself",
destination, source, commonto);
return PROMISE_RESULT_INTERRUPTED;
}
while (*commonto == *commonfrom)
{
commonto++;
commonfrom++;
}
while (!((IsAbsoluteFileName(commonto)) && (IsAbsoluteFileName(commonfrom))))
{
commonto--;
commonfrom--;
}
commonto++;
for (sp = commonfrom; *sp != '\0'; sp++)
{
if (IsFileSep(*sp))
{
levels++;
}
}
memset(buff, 0, CF_BUFSIZE);
strcat(buff, ".");
strcat(buff, FILE_SEPARATOR_STR);
while (--levels > 0)
{
const char add[] = ".." FILE_SEPARATOR_STR;
if (!PathAppend(buff, sizeof(buff), add, FILE_SEPARATOR))
{
Log(LOG_LEVEL_ERR,
"Internal limit reached in VerifyRelativeLink(),"
" path too long: '%s' + '%s'",
buff, add);
return PROMISE_RESULT_FAIL;
}
}
if (!PathAppend(buff, sizeof(buff), commonto, FILE_SEPARATOR))
{
Log(LOG_LEVEL_ERR,
"Internal limit reached in VerifyRelativeLink() end,"
" path too long: '%s' + '%s'",
buff, commonto);
return PROMISE_RESULT_FAIL;
}
return VerifyLink(ctx, destination, buff, attr, pp);
}
bool MakeParentDirectory(const char *parentandchild, bool force)
{
char *spc, *sp;
char currentpath[CF_BUFSIZE];
char pathbuf[CF_BUFSIZE];
struct stat statbuf;
mode_t mask;
int rootlen;
char Path_File_Separator;
#ifdef __APPLE__
/* Keeps track of if dealing w. resource fork */
int rsrcfork;
rsrcfork = 0;
char *tmpstr;
#endif
Log(LOG_LEVEL_DEBUG, "Trying to create a parent directory for '%s%s'", parentandchild, force ? " (force applied)" : "");
if (!IsAbsoluteFileName(parentandchild))
{
Log(LOG_LEVEL_ERR, "Will not create directories for a relative filename '%s'. Has no invariant meaning",
parentandchild);
return false;
}
strncpy(pathbuf, parentandchild, CF_BUFSIZE - 1); /* local copy */
#ifdef __APPLE__
if (strstr(pathbuf, _PATH_RSRCFORKSPEC) != NULL)
{
rsrcfork = 1;
}
#endif
/* skip link name */
/* This cast is necessary, as you can't have (char* -> char*)
and (const char* -> const char*) functions in C */
sp = (char *) LastFileSeparator(pathbuf);
if (sp == NULL)
{
sp = pathbuf;
}
*sp = '\0';
DeleteSlash(pathbuf);
if (lstat(pathbuf, &statbuf) != -1)
{
if (S_ISLNK(statbuf.st_mode))
{
Log(LOG_LEVEL_VERBOSE, "INFO: %s is a symbolic link, not a true directory!", pathbuf);
}
if (force) /* force in-the-way directories aside */
{
struct stat dir;
stat(pathbuf, &dir);
if (!S_ISDIR(dir.st_mode)) /* if the dir exists - no problem */
{
struct stat sbuf;
if (DONTDO)
{
return true;
}
strcpy(currentpath, pathbuf);
DeleteSlash(currentpath);
strcat(currentpath, ".cf-moved");
Log(LOG_LEVEL_INFO, "Moving obstructing file/link %s to %s to make directory", pathbuf, currentpath);
/* If cfagent, remove an obstructing backup object */
if (lstat(currentpath, &sbuf) != -1)
{
if (S_ISDIR(sbuf.st_mode))
{
DeleteDirectoryTree(currentpath);
}
else
{
if (unlink(currentpath) == -1)
{
Log(LOG_LEVEL_INFO, "Couldn't remove file/link '%s' while trying to remove a backup. (unlink: %s)",
currentpath, GetErrorStr());
}
}
}
/* And then move the current object out of the way... */
if (rename(pathbuf, currentpath) == -1)
{
Log(LOG_LEVEL_INFO, "Warning: The object '%s' is not a directory. (rename: %s)", pathbuf, GetErrorStr());
return false;
}
}
}
else
{
if (!S_ISLNK(statbuf.st_mode) && !S_ISDIR(statbuf.st_mode))
{
Log(LOG_LEVEL_INFO,
"The object %s is not a directory. Cannot make a new directory without deleting it.", pathbuf);
return false;
}
}
}
/* Now we can make a new directory .. */
currentpath[0] = '\0';
rootlen = RootDirLength(parentandchild);
strncpy(currentpath, parentandchild, rootlen);
for (sp = (char*) parentandchild + rootlen, spc = currentpath + rootlen; *sp != '\0'; sp++)
{
if (!IsFileSep(*sp) && *sp != '\0')
{
*spc = *sp;
spc++;
}
else
{
Path_File_Separator = *sp;
*spc = '\0';
if (strlen(currentpath) == 0)
{
}
else if (stat(currentpath, &statbuf) == -1)
{
if (!DONTDO)
{
mask = umask(0);
if (mkdir(currentpath, DEFAULTMODE) == -1)
{
Log(LOG_LEVEL_ERR, "Unable to make directories to '%s'. (mkdir: %s)", parentandchild, GetErrorStr());
umask(mask);
return false;
}
umask(mask);
}
}
else
{
if (!S_ISDIR(statbuf.st_mode))
{
#ifdef __APPLE__
/* Ck if rsrc fork */
if (rsrcfork)
{
tmpstr = xmalloc(CF_BUFSIZE);
strncpy(tmpstr, currentpath, CF_BUFSIZE);
strncat(tmpstr, _PATH_FORKSPECIFIER, CF_BUFSIZE);
/* CFEngine removed terminating slashes */
DeleteSlash(tmpstr);
if (strncmp(tmpstr, pathbuf, CF_BUFSIZE) == 0)
{
free(tmpstr);
return true;
}
free(tmpstr);
}
#endif
Log(LOG_LEVEL_ERR, "Cannot make %s - %s is not a directory! (use forcedirs=true)", pathbuf,
currentpath);
return false;
}
}
/* *spc = FILE_SEPARATOR; */
*spc = Path_File_Separator;
spc++;
}
}
Log(LOG_LEVEL_DEBUG, "Directory for '%s' exists. Okay", parentandchild);
return true;
}
int MakeDirectoriesFor(char *file,char force) /* Make all directories which underpin file */
{ char *sp,*spc;
char currentpath[CF_BUFSIZE];
char pathbuf[CF_BUFSIZE];
struct stat statbuf;
mode_t mask;
int rootlen;
char Path_File_Separator;
#ifdef DARWIN
/* Keeps track of if dealing w. resource fork */
int rsrcfork;
rsrcfork = 0;
char * tmpstr;
#endif
if (!IsAbsoluteFileName(file))
{
snprintf(OUTPUT,CF_BUFSIZE*2,"Will not create directories for a relative filename (%s). Has no invariant meaning\n",file);
CfLog(cferror,OUTPUT,"");
return false;
}
strncpy(pathbuf,file,CF_BUFSIZE-1); /* local copy */
#ifdef DARWIN
/* Dealing w. a rsrc fork? */
if (strstr(pathbuf, _PATH_RSRCFORKSPEC) != NULL)
{
rsrcfork = 1;
}
#endif
/* skip link name */
sp = LastFileSeparator(pathbuf);
if (sp == NULL)
{
sp = pathbuf;
}
*sp = '\0';
DeleteSlash(pathbuf);
if (lstat(pathbuf,&statbuf) != -1)
{
if (S_ISLNK(statbuf.st_mode))
{
Verbose("%s: INFO: %s is a symbolic link, not a true directory!\n",VPREFIX,pathbuf);
}
if (force == 'y') /* force in-the-way directories aside */
{
if (!S_ISDIR(statbuf.st_mode)) /* if the dir exists - no problem */
{
if (ISCFENGINE)
{
struct Tidy tp;
struct TidyPattern tpat;
struct stat sbuf;
if (DONTDO)
{
return true;
}
strcpy(currentpath,pathbuf);
DeleteSlash(currentpath);
strcat(currentpath,".cf-moved");
snprintf(OUTPUT,CF_BUFSIZE,"Moving obstructing file/link %s to %s to make directory",pathbuf,currentpath);
CfLog(cferror,OUTPUT,"");
/* If cfagent, remove an obstructing backup object */
if (lstat(currentpath,&sbuf) != -1)
{
if (S_ISDIR(sbuf.st_mode))
{
tp.maxrecurse = 2;
tp.tidylist = &tpat;
tp.next = NULL;
tp.path = currentpath;
tpat.recurse = CF_INF_RECURSE;
tpat.age = 0;
tpat.size = 0;
tpat.pattern = strdup("*");
tpat.classes = strdup("any");
tpat.defines = NULL;
tpat.elsedef = NULL;
tpat.dirlinks = 'y';
tpat.travlinks = 'n';
tpat.rmdirs = 'y';
tpat.searchtype = 'a';
tpat.log = 'd';
tpat.inform = 'd';
tpat.next = NULL;
// RecursiveTidySpecialArea(currentpath,&tp,CF_INF_RECURSE,&sbuf);
free(tpat.pattern);
free(tpat.classes);
if (rmdir(currentpath) == -1)
{
snprintf(OUTPUT,CF_BUFSIZE*2,"Couldn't remove directory %s while trying to remove a backup\n",currentpath);
CfLog(cfinform,OUTPUT,"rmdir");
}
}
else
{
if (unlink(currentpath) == -1)
{
snprintf(OUTPUT,CF_BUFSIZE*2,"Couldn't remove file/link %s while trying to remove a backup\n",currentpath);
CfLog(cfinform,OUTPUT,"rmdir");
}
}
}
/* And then move the current object out of the way...*/
if (rename(pathbuf,currentpath) == -1)
{
snprintf(OUTPUT,CF_BUFSIZE*2,"Warning. The object %s is not a directory.\n",pathbuf);
CfLog(cfinform,OUTPUT,"");
CfLog(cfinform,"Could not make a new directory or move the block","rename");
return(false);
}
}
}
else
{
if (! S_ISLNK(statbuf.st_mode) && ! S_ISDIR(statbuf.st_mode))
{
snprintf(OUTPUT,CF_BUFSIZE*2,"Warning. The object %s is not a directory.\n",pathbuf);
CfLog(cfinform,OUTPUT,"");
CfLog(cfinform,"Cannot make a new directory without deleting it!\n\n","");
return(false);
}
}
}
}
/* Now we can make a new directory .. */
currentpath[0] = '\0';
rootlen = RootDirLength(sp);
strncpy(currentpath, file, rootlen);
for (sp = file+rootlen, spc = currentpath+rootlen; *sp != '\0'; sp++)
{
if (!IsFileSep(*sp) && *sp != '\0')
{
*spc = *sp;
spc++;
}
else
{
Path_File_Separator = *sp;
*spc = '\0';
if (strlen(currentpath) == 0)
{
}
else if (stat(currentpath,&statbuf) == -1)
{
Debug2("cfengine: Making directory %s, mode %o\n",currentpath,DEFAULTMODE);
if (! DONTDO)
{
mask = umask(0);
if (mkdir(currentpath,DEFAULTMODE) == -1)
{
snprintf(OUTPUT,CF_BUFSIZE*2,"Unable to make directories to %s\n",file);
CfLog(cferror,OUTPUT,"mkdir");
umask(mask);
return(false);
}
umask(mask);
}
}
else
{
if (! S_ISDIR(statbuf.st_mode))
{
#ifdef DARWIN
/* Ck if rsrc fork */
if (rsrcfork)
{
tmpstr = malloc(CF_BUFSIZE);
strncpy(tmpstr, currentpath, CF_BUFSIZE);
strncat(tmpstr, _PATH_FORKSPECIFIER, CF_BUFSIZE);
/* Cfengine removed terminating slashes */
DeleteSlash(tmpstr);
if (strncmp(tmpstr, pathbuf, CF_BUFSIZE) == 0)
{
free(tmpstr);
return(true);
}
free(tmpstr);
}
#endif
snprintf(OUTPUT,CF_BUFSIZE*2,"Cannot make %s - %s is not a directory! (use forcedirs=true)\n",pathbuf,currentpath);
CfLog(cferror,OUTPUT,"");
return(false);
}
}
/* *spc = FILE_SEPARATOR; */
*spc = Path_File_Separator;
spc++;
}
}
Debug("Directory for %s exists. Okay\n",file);
return(true);
}
PromiseResult VerifyRelativeLink(EvalContext *ctx, char *destination, const char *source, Attributes attr, const Promise *pp)
{
char *sp, *commonto, *commonfrom;
char buff[CF_BUFSIZE], linkto[CF_BUFSIZE], add[CF_BUFSIZE];
int levels = 0;
if (*source == '.')
{
return VerifyLink(ctx, destination, source, attr, pp);
}
if (!CompressPath(linkto, source))
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_INTERRUPTED, pp, attr, "Failed to link %s to %s\n", destination, source);
return PROMISE_RESULT_FAIL;
}
commonto = linkto;
commonfrom = destination;
if (strcmp(commonto, commonfrom) == 0)
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_INTERRUPTED, pp, attr, "Failed to link %s to %s - can't link file %s to itself\n",
destination, source, commonto);
return PROMISE_RESULT_FAIL;
}
while (*commonto == *commonfrom)
{
commonto++;
commonfrom++;
}
while (!((IsAbsoluteFileName(commonto)) && (IsAbsoluteFileName(commonfrom))))
{
commonto--;
commonfrom--;
}
commonto++;
for (sp = commonfrom; *sp != '\0'; sp++)
{
if (IsFileSep(*sp))
{
levels++;
}
}
memset(buff, 0, CF_BUFSIZE);
strcat(buff, ".");
strcat(buff, FILE_SEPARATOR_STR);
while (--levels > 0)
{
snprintf(add, CF_BUFSIZE - 1, "..%c", FILE_SEPARATOR);
if (!JoinPath(buff, add))
{
return PROMISE_RESULT_FAIL;
}
}
if (!JoinPath(buff, commonto))
{
return PROMISE_RESULT_FAIL;
}
return VerifyLink(ctx, destination, buff, attr, pp);
}
bool MakeParentDirectory(const char *parentandchild, bool force)
{
char *sp;
char currentpath[CF_BUFSIZE];
char pathbuf[CF_BUFSIZE];
struct stat statbuf;
mode_t mask;
int rootlen;
#ifdef __APPLE__
/* Keeps track of if dealing w. resource fork */
int rsrcfork;
rsrcfork = 0;
char *tmpstr;
#endif
Log(LOG_LEVEL_DEBUG, "Trying to create a parent directory%s for: %s",
force ? " (force applied)" : "",
parentandchild);
if (!IsAbsoluteFileName(parentandchild))
{
Log(LOG_LEVEL_ERR,
"Will not create directories for a relative filename: %s",
parentandchild);
return false;
}
strlcpy(pathbuf, parentandchild, CF_BUFSIZE); /* local copy */
#ifdef __APPLE__
if (strstr(pathbuf, _PATH_RSRCFORKSPEC) != NULL)
{
rsrcfork = 1;
}
#endif
/* skip link name */
sp = (char *) LastFileSeparator(pathbuf); /* de-constify */
if (sp == NULL)
{
sp = pathbuf;
}
*sp = '\0';
DeleteSlash(pathbuf);
if (lstat(pathbuf, &statbuf) != -1)
{
if (S_ISLNK(statbuf.st_mode))
{
Log(LOG_LEVEL_VERBOSE, "'%s' is a symbolic link, not a directory",
pathbuf);
}
if (force) /* force in-the-way directories aside */
{
struct stat dir;
stat(pathbuf, &dir);
/* If the target directory exists as a directory, no problem. */
/* If the target directory exists but is not a directory, then
* rename it to ".cf-moved": */
if (!S_ISDIR(dir.st_mode))
{
struct stat sbuf;
if (DONTDO)
{
return true;
}
strcpy(currentpath, pathbuf);
DeleteSlash(currentpath);
/* TODO overflow check! */
strlcat(currentpath, ".cf-moved", sizeof(currentpath));
Log(LOG_LEVEL_INFO,
"Moving obstructing file/link %s to %s to make directory",
pathbuf, currentpath);
/* Remove possibly pre-existing ".cf-moved" backup object. */
if (lstat(currentpath, &sbuf) != -1)
{
if (S_ISDIR(sbuf.st_mode)) /* directory */
{
DeleteDirectoryTree(currentpath);
}
else /* not a directory */
{
if (unlink(currentpath) == -1)
{
Log(LOG_LEVEL_INFO, "Couldn't remove file/link"
" '%s' while trying to remove a backup"
" (unlink: %s)",
currentpath, GetErrorStr());
}
}
}
/* And then rename the current object to ".cf-moved". */
if (rename(pathbuf, currentpath) == -1)
{
Log(LOG_LEVEL_INFO,
"Couldn't rename '%s' to .cf-moved"
" (rename: %s)", pathbuf, GetErrorStr());
return false;
}
}
}
else
{
if (!S_ISLNK(statbuf.st_mode) && !S_ISDIR(statbuf.st_mode))
{
Log(LOG_LEVEL_INFO, "The object '%s' is not a directory."
" Cannot make a new directory without deleting it.",
pathbuf);
return false;
}
}
}
/* Now we make directories descending from the root folder down to the leaf */
currentpath[0] = '\0';
rootlen = RootDirLength(parentandchild);
/* currentpath is not NULL terminated on purpose! */
strncpy(currentpath, parentandchild, rootlen);
for (size_t z = rootlen; parentandchild[z] != '\0'; z++)
{
const char c = parentandchild[z];
/* Copy up to the next separator. */
if (!IsFileSep(c))
{
currentpath[z] = c;
continue;
}
const char path_file_separator = c;
currentpath[z] = '\0';
/* currentpath is complete path for each of the parent directories. */
if (currentpath[0] == '\0')
{
/* We are at dir "/" of an absolute path, no need to create. */
}
/* WARNING: on Windows stat() fails if path has a trailing slash! */
else if (stat(currentpath, &statbuf) == -1)
{
if (!DONTDO)
{
mask = umask(0);
if (mkdir(currentpath, DEFAULTMODE) == -1)
{
Log(LOG_LEVEL_ERR,
"Unable to make directory: %s (mkdir: %s)",
currentpath, GetErrorStr());
umask(mask);
return false;
}
umask(mask);
}
}
else
{
if (!S_ISDIR(statbuf.st_mode))
{
#ifdef __APPLE__
/* Ck if rsrc fork */
if (rsrcfork)
{
tmpstr = xmalloc(CF_BUFSIZE);
strlcpy(tmpstr, currentpath, CF_BUFSIZE);
strncat(tmpstr, _PATH_FORKSPECIFIER, CF_BUFSIZE);
/* CFEngine removed terminating slashes */
DeleteSlash(tmpstr);
if (strncmp(tmpstr, pathbuf, CF_BUFSIZE) == 0)
{
free(tmpstr);
return true;
}
free(tmpstr);
}
#endif
Log(LOG_LEVEL_ERR,
"Cannot make %s - %s is not a directory!"
" (use forcedirs=true)", pathbuf, currentpath);
return false;
}
}
currentpath[z] = path_file_separator;
}
Log(LOG_LEVEL_DEBUG, "Directory for '%s' exists. Okay", parentandchild);
return true;
}
