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Various Changes
[tpg/acess2.git]
/
Kernel
/
vfs
/
open.c
diff --git
a/Kernel/vfs/open.c
b/Kernel/vfs/open.c
index
25c1559
..
a1245f3
100644
(file)
--- a/
Kernel/vfs/open.c
+++ b/
Kernel/vfs/open.c
@@
-30,13
+30,14
@@
char *VFS_GetAbsPath(char *Path)
{
char *ret;
int pathLen = strlen(Path);
-
int read, write
;
-
int pos, baseLen
;
-
int slashNum
= 0;
-
Uint slashOffsets[MAX_PATH_SLASHES]
;
+
char *pathComps[MAX_PATH_SLASHES]
;
+
char *tmpStr
;
+
int iPos
= 0;
+
int iPos2 = 0
;
char *cwd = CFGPTR(CFG_VFS_CWD);
int cwdLen;
+
ENTER("sPath", Path);
// Memory File
@@
-59,71
+60,91
@@
char *VFS_GetAbsPath(char *Path)
return NULL;
}
strcpy(ret, Path);
- baseLen = 1;
} else {
- cwdLen = strlen(cwd);
+ if(cwd == NULL) {
+ cwd = "/";
+ cwdLen = 1;
+ }
+ else {
+ cwdLen = strlen(cwd);
+ }
// Prepend the current directory
- ret = malloc(
cwdLen+pathLen+2
);
+ ret = malloc(
cwdLen + 1 + pathLen + 1
);
strcpy(ret, cwd);
ret[cwdLen] = '/';
strcpy(&ret[cwdLen+1], Path);
+ //Log("ret = '%s'\n", ret);
}
- //
Remove . and ..
- read = write = 1; // Cwd has already been parsed
-
for(; read < baseLen+pathLen; read = pos+1
)
+ //
Parse Path
+ pathComps[iPos++] = tmpStr = ret+1;
+
while(*tmpStr
)
{
- pos = strpos( &ret[read], '/' );
- // If we are in the last section, force a break at the end of the itteration
- if(pos == -1) pos = baseLen+pathLen;
- else pos += read; // Else, Adjust to absolute
-
- //Log("pos-read = %i", pos-read);
-
- // Check Length
- if(pos - read <= 2)
+ if(*tmpStr++ == '/')
{
- //Log("&ret[read] = '%s'", &ret[read]);
- // Current Dir "."
- if(strncmp(&ret[read], ".", pos-read) == 0) continue;
- // Parent ".."
- if(strncmp(&ret[read], "..", pos-read) == 0)
- {
- // If there is no higher, silently ignore
- if(slashNum < 1) {
- write = 1;
- continue;
- }
- // Reverse write pointer
- write = slashOffsets[ --slashNum ];
- continue;
+ pathComps[iPos++] = tmpStr;
+ if(iPos == MAX_PATH_SLASHES) {
+ LOG("Path '%s' has too many elements", Path);
+ free(ret);
+ LEAVE('n');
+ return NULL;
}
}
-
-
- // Only copy if the positions differ
- if(read != write) {
- Log("write = %i, read = %i, pos-read+1 = %i", write, read, pos-read+1);
- memcpy( &ret[write], &ret[read], pos-read+1 );
- Log("ret = '%s'", ret);
+ }
+ pathComps[iPos] = NULL;
+
+ // Cleanup
+ iPos2 = iPos = 0;
+ while(pathComps[iPos])
+ {
+ tmpStr = pathComps[iPos];
+ // Always Increment iPos
+ iPos++;
+ // ..
+ if(tmpStr[0] == '.' && tmpStr[1] == '.' && (tmpStr[2] == '/' || tmpStr[2] == '\0') )
+ {
+ if(iPos2 != 0)
+ iPos2 --;
+ continue;
}
-
- if(slashNum < MAX_PATH_SLASHES)
- slashOffsets[ slashNum++ ] = write;
- else {
- LOG("Path '%s' has too many elements", Path);
- free(ret);
- LEAVE('n');
- return NULL;
+ // .
+ if(tmpStr[0] == '.' && (tmpStr[1] == '/' || tmpStr[1] == '\0') )
+ {
+ continue;
+ }
+ // Empty
+ if(tmpStr[0] == '/' || tmpStr[0] == '\0')
+ {
+ continue;
}
- // Increment write pointer
- write += (pos-read)+1;
+ // Set New Position
+ pathComps[iPos2] = tmpStr;
+ iPos2++;
}
+ pathComps[iPos2] = NULL;
+
+ // Build New Path
+ iPos2 = 1; iPos = 0;
+ ret[0] = '/';
+ while(pathComps[iPos])
+ {
+ tmpStr = pathComps[iPos];
+ while(*tmpStr && *tmpStr != '/')
+ {
+ ret[iPos2++] = *tmpStr;
+ tmpStr++;
+ }
+ ret[iPos2++] = '/';
+ iPos++;
+ }
+ if(iPos2 > 1)
+ ret[iPos2-1] = 0;
+ else
+ ret[iPos2] = 0;
- // `ret` should now be the absolute path
LEAVE('s', ret);
- Log("VFS_GetAbsPath: RETURN '%s'", ret);
+
//
Log("VFS_GetAbsPath: RETURN '%s'", ret);
return ret;
}
@@
-164,7
+185,10
@@
tVFS_Node *VFS_ParsePath(char *Path, char **TruePath)
}
// Check if there is anything mounted
- if(!gMounts) return NULL;
+ if(!gMounts) {
+ Warning("WTF! There's nothing mounted?");
+ return NULL;
+ }
// Find Mountpoint
for(mnt = gMounts;
@@
-197,7
+221,7
@@
tVFS_Node *VFS_ParsePath(char *Path, char **TruePath)
// Sanity Check
/*if(!longestMount) {
- Log("VFS_
GetTru
ePath - ERROR: No Root Node\n");
+ Log("VFS_
Pars
ePath - ERROR: No Root Node\n");
return NULL;
}*/
@@
-233,6
+257,7
@@
tVFS_Node *VFS_ParsePath(char *Path, char **TruePath)
free(*TruePath);
*TruePath = NULL;
}
+ //Log("Permissions fail on '%s'", Path);
LEAVE('n');
return NULL;
}
@@
-245,6
+270,7
@@
tVFS_Node *VFS_ParsePath(char *Path, char **TruePath)
*TruePath = NULL;
}
Path[nextSlash] = '/';
+ //Log("FindDir fail on '%s'", Path);
LEAVE('n');
return NULL;
}
@@
-263,6
+289,7
@@
tVFS_Node *VFS_ParsePath(char *Path, char **TruePath)
free(*TruePath);
*TruePath = NULL;
}
+ //Log("Child fail on '%s' ('%s)", Path, &Path[ofs]);
Path[nextSlash] = '/';
LEAVE('n');
return NULL;
@@
-283,6
+310,7
@@
tVFS_Node *VFS_ParsePath(char *Path, char **TruePath)
// Error Check
if(!curNode) {
+ Log("Symlink fail '%s'", tmp);
free(tmp); // Free temp string
LEAVE('n');
return NULL;
@@
-337,6
+365,7
@@
tVFS_Node *VFS_ParsePath(char *Path, char **TruePath)
// Check if file was found
if(!tmpNode) {
LOG("Node '%s' not found in dir '%s'", &Path[ofs], Path);
+ Log("Child fail '%s' ('%s')", Path, &Path[ofs]);
if(TruePath) free(*TruePath);
if(curNode->Close) curNode->Close(curNode);
LEAVE('n');
@@
-411,6
+440,7
@@
int VFS_Open(char *Path, Uint Mode)
}
if(!node) {
+ LOG("Cannot find node");
LEAVE('i', -1);
return -1;
}
@@
-425,6
+455,7
@@
int VFS_Open(char *Path, Uint Mode)
// Permissions Check
if( !VFS_CheckACL(node, i) ) {
node->Close( node );
+ Log("VFS_Open: Permissions Failed");
LEAVE('i', -1);
return -1;
}
@@
-475,6
+506,7
@@
int VFS_Open(char *Path, Uint Mode)
}
}
+ Log("VFS_Open: Out of handles");
LEAVE('i', -1);
return -1;
}
@@
-536,7
+568,8
@@
int VFS_ChDir(char *New)
VFS_Close(fd);
// Free old working directory
- if( CFGPTR(CFG_VFS_CWD) ) free( CFGPTR(CFG_VFS_CWD) );
+ if( CFGPTR(CFG_VFS_CWD) )
+ free( CFGPTR(CFG_VFS_CWD) );
// Set new
CFGPTR(CFG_VFS_CWD) = buf;
UCC
git Repository :: git.ucc.asn.au