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git://sourceware.org/git/lvm2.git
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o You can now specify the dev directory for libdm
o dm_dir() returns the full path to the device-mapper dir (eg, /dev/device-mapper). o put stat in on _rm_node
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@ -74,8 +74,9 @@ int dm_task_add_target(struct dm_task *dmt,
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int dm_task_run(struct dm_task *dmt);
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/*
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* Return the device-mapper directory
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* Configure the device-mapper directory
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*/
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int dm_set_dev_dir(const char *dir);
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const char *dm_dir(void);
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#endif /* LIB_DEVICE_MAPPER_H */
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@ -23,6 +23,8 @@
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#define DEV_DIR "/dev/"
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#define ALIGNMENT sizeof(int)
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static char _dm_dir[PATH_MAX] = DEV_DIR DM_DIR;
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/*
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* Library users can provide their own logging
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* function.
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@ -292,9 +294,13 @@ static int _add_dev_node(const char *dev_name, dev_t dev)
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static int _rm_dev_node(const char *dev_name)
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{
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char path[PATH_MAX];
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struct stat info;
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_build_dev_path(path, sizeof(path), dev_name);
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if (stat(path, &info) < 0)
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return 1;
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if (unlink(path) < 0) {
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log("Unable to unlink device node for '%s'", dev_name);
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return 0;
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@ -308,13 +314,16 @@ int dm_task_run(struct dm_task *dmt)
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int fd = -1;
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struct dm_ioctl *dmi = _flatten(dmt);
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unsigned int command;
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char control[PATH_MAX];
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if (!dmi) {
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log("Couldn't create ioctl argument");
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return 0;
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}
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if ((fd = open(DEV_DIR DM_DIR "/control", O_RDWR)) < 0) {
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snprintf(control, sizeof(control), "%s/control", _dm_dir);
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if ((fd = open(control, O_RDWR)) < 0) {
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log("Couldn't open device-mapper control device");
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goto bad;
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}
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@ -376,7 +385,13 @@ int dm_task_run(struct dm_task *dmt)
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return 0;
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}
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int dm_set_dev_dir(const char *dir)
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{
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snprintf(_dm_dir, sizeof(_dm_dir), "%s/%s", dir, DM_DIR);
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return 1;
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}
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const char *dm_dir(void)
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{
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return DM_DIR;
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return _dm_dir;
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}
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