diff options
Diffstat (limited to 'src/shared/debugfs.c')
-rw-r--r-- | src/shared/debugfs.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/shared/debugfs.c b/src/shared/debugfs.c new file mode 100644 index 00000000..f522c518 --- /dev/null +++ b/src/shared/debugfs.c @@ -0,0 +1,66 @@ +/* + * + * Connection Manager + * + * Copyright (C) 2012 Intel Corporation. All rights reserved. + * + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdbool.h> +#include <string.h> +#include <limits.h> + +#include "src/shared/debugfs.h" + +#define STRINGIFY(x) STRINGIFY_ARG(x) +#define STRINGIFY_ARG(x) #x + +const char *debugfs_get_path(void) +{ + static char path[PATH_MAX + 1]; + static bool found = false; + char type[100]; + FILE *fp; + + if (found) + return path; + + fp = fopen("/proc/mounts", "r"); + if (!fp) + return NULL; + + while (fscanf(fp, "%*s %" STRINGIFY(PATH_MAX) "s %99s %*s %*d %*d\n", + path, type) == 2) { + if (!strcmp(type, "debugfs")) { + found = true; + break; + } + } + + fclose(fp); + + if (!found) + return NULL; + + return path; +} |