aphrody-labs/PowerShell
1
0 Fork 0
mirror of https://github.com/aphrody-labs/PowerShell.git synced 2026-10-17 12:45:47 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

changes to logic in followsymlink

Browse Source
This commit is contained in:
Alex Jordan committed 2016-07-07 15:02:23 -07:00
1 parent 2a6b32ce5b
commit 0dc248b6f9
1 file changed
+50 -53
Download Patch File Download Diff File Expand all files Collapse all files
src/libpsl-native/src/followsymlink.cpp
+50 -53
View File
@@ -49,64 +49,13 @@ char* FollowSymLink(const char* fileName)
//if lstat in IsSymLink returns -1, path does not exist
if (IsSymLink(fileName) == -1)
{
printf("-1 %s", fileName);
return NULL;
}
/*If the path is a symlink, the function return the absolute filepath if valid. if not valid, return null*/
if (IsSymLink(fileName) == 1)
if (IsSymLink(fileName) == 0)
{
printf("readlink %s", fileName);
char buffer[PATH_MAX];
ssize_t sz = readlink(fileName, buffer, PATH_MAX);
if (sz == -1)
{
switch(errno)
{
case EACCES:
errno = ERROR_ACCESS_DENIED;
break;
case EFAULT:
errno = ERROR_INVALID_ADDRESS;
break;
case EINVAL:
errno = ERROR_INVALID_NAME;
break;
case EIO:
errno = ERROR_GEN_FAILURE;
break;
case ELOOP:
errno = ERROR_STOPPED_ON_SYMLINK;
break;
case ENAMETOOLONG:
errno = ERROR_BAD_PATH_NAME;
break;
case ENOENT:
errno = ERROR_FILE_NOT_FOUND;
break;
case ENOMEM:
errno = ERROR_OUTOFMEMORY;
break;
case ENOTDIR:
errno = ERROR_BAD_PATH_NAME;
break;
default:
errno = ERROR_INVALID_FUNCTION;
}
return NULL;
}
buffer[sz] = '\0';
return strndup(buffer, sz + 1);
}
/*else the path is not a symlink - but attempt to resolve*/
else
{
printf("realpath %s", fileName);
//Attempt to resolve with the absolute filepath
char actualpath[PATH_MAX+1];
char* realPath = realpath(fileName, actualpath);
@@ -150,5 +99,53 @@ char* FollowSymLink(const char* fileName)
}
return strndup(realPath, strlen(realPath) + 1 );
}
}
/*else the path is not a symlink - but attempt to resolve*/
else
{
char buffer[PATH_MAX];
ssize_t sz = readlink(fileName, buffer, PATH_MAX);
if (sz == -1)
{
switch(errno)
{
case EACCES:
errno = ERROR_ACCESS_DENIED;
break;
case EFAULT:
errno = ERROR_INVALID_ADDRESS;
break;
case EINVAL:
errno = ERROR_INVALID_NAME;
case EIO:
errno = ERROR_GEN_FAILURE;
break;
case ELOOP:
errno = ERROR_STOPPED_ON_SYMLINK;
break;
case ENAMETOOLONG:
errno = ERROR_BAD_PATH_NAME;
break;
case ENOENT:
errno = ERROR_FILE_NOT_FOUND;
break;
case ENOMEM:
errno = ERROR_OUTOFMEMORY;
break;
case ENOTDIR:
errno = ERROR_BAD_PATH_NAME;
break;
default:
errno = ERROR_INVALID_FUNCTION;
}
return NULL;
}
buffer[sz] = '\0';
return strndup(buffer, sz + 1);
}
}