static int
debugCmdMkDir(DebugContext *debugContext, int argc, char *argv[]) {
int retVal;
if (argc != 2) {
fprintf(debugContext->err, "Invalid number of arguments.\n");
return 1;
}
retVal = uio_mkdir(debugContext->cwd, argv[1], 0777);
if (retVal == -1) {
fprintf(debugContext->err, "Could not create directory: %s\n",
strerror(errno));
return 1;
}
return 0;
}
uio_StdioAccessHandle *
uio_getStdioAccess(uio_DirHandle *dir, const char *path, int flags,
uio_DirHandle *tempDir) {
int res;
uio_MountHandle *mountHandle;
const char *name;
char *newPath;
char *tempDirName;
uio_DirHandle *newDir;
uio_FileSystemID fsID;
res = uio_getFileLocation(dir, path, flags, &mountHandle, &newPath);
if (res == -1) {
// errno is set
return NULL;
}
fsID = uio_getMountFileSystemType(mountHandle);
if (fsID == uio_FSTYPE_STDIO) {
// Current location is usable.
return uio_StdioAccessHandle_new(NULL, NULL, NULL, NULL, newPath);
}
uio_free(newPath);
{
uio_uint32 dirNum;
int i;
// Current location is not usable. Create a directory with a
// generated name, as a temporary location to store a copy of
// the file.
dirNum = (uio_uint32) time(NULL);
tempDirName = uio_malloc(sizeof "01234567");
for (i = 0; ; i++) {
#ifdef NUM_TEMP_RETRIES
if (i >= NUM_TEMP_RETRIES) {
// Using ENOSPC to report that we couldn't create a
// temporary dir, getting EEXIST.
uio_free(tempDirName);
errno = ENOSPC;
return NULL;
}
#endif
sprintf(tempDirName, "%08lx", (unsigned long) dirNum + i);
res = uio_mkdir(tempDir, tempDirName, 0700);
if (res == -1) {
int savedErrno;
if (errno == EEXIST)
continue;
savedErrno = errno;
#ifdef DEBUG
fprintf(stderr, "Error: Could not create temporary dir: %s\n",
strerror(errno));
#endif
uio_free(tempDirName);
errno = savedErrno;
return NULL;
}
break;
}
newDir = uio_openDirRelative(tempDir, tempDirName, 0);
if (newDir == NULL) {
#ifdef DEBUG
fprintf(stderr, "Error: Could not open temporary dir: %s\n",
strerror(errno));
#endif
res = uio_rmdir(tempDir, tempDirName);
#ifdef DEBUG
if (res == -1)
fprintf(stderr, "Warning: Could not remove temporary dir: "
"%s.\n", strerror(errno));
#endif
uio_free(tempDirName);
errno = EIO;
return NULL;
}
// Get the last component of path. This should be the file to
// access.
name = strrchr(path, '/');
if (name == NULL)
name = path;
// Copy the file
res = uio_copyFile(dir, path, newDir, name);
if (res == -1) {
int savedErrno = errno;
#ifdef DEBUG
fprintf(stderr, "Error: Could not copy file to temporary dir: "
"%s\n", strerror(errno));
#endif
uio_closeDir(newDir);
uio_free(tempDirName);
errno = savedErrno;
return NULL;
}
}
res = uio_getFileLocation(newDir, name, flags, &mountHandle, &newPath);
if (res == -1) {
int savedErrno = errno;
fprintf(stderr, "Error: uio_getStdioAccess: Could not get location "
"of temporary dir: %s.\n", strerror(errno));
uio_closeDir(newDir);
uio_free(tempDirName);
errno = savedErrno;
return NULL;
}
fsID = uio_getMountFileSystemType(mountHandle);
if (fsID != uio_FSTYPE_STDIO) {
// Temp dir isn't on a stdio fs either.
fprintf(stderr, "Error: uio_getStdioAccess: Temporary file location "
"isn't on a stdio filesystem.\n");
uio_closeDir(newDir);
uio_free(tempDirName);
uio_free(newPath);
// errno = EXDEV;
errno = EINVAL;
return NULL;
}
uio_DirHandle_ref(tempDir);
return uio_StdioAccessHandle_new(tempDir, tempDirName, newDir,
uio_strdup(name), newPath);
}
