#include <sys/stat.h>
#include <sys/mman.h>
-#include "libsysfs/sysfs/libsysfs.h"
#include "udev.h"
#include "logging.h"
#include "udev_lib.h"
return devpath;
}
-char *get_devnode(void)
+char *get_devname(void)
{
- char *devnode;
+ char *devname;
- devnode = getenv("DEVNODE");
- if (devnode != NULL && strlen(devnode) > NAME_SIZE)
- devnode[NAME_SIZE-1] = '\0';
+ devname = getenv("DEVNAME");
+ if (devname != NULL && strlen(devname) > NAME_SIZE)
+ devname[NAME_SIZE-1] = '\0';
- return devnode;
+ return devname;
}
char *get_seqnum(void)
return subsystem;
}
+#define BLOCK_PATH "/block/"
+#define CLASS_PATH "/class/"
+#define NET_PATH "/class/net/"
+
char get_device_type(const char *path, const char *subsystem)
{
- if (strcmp(subsystem, "block") == 0 ||
- strstr(path, "/block/") != NULL)
+ if (strcmp(subsystem, "block") == 0)
return 'b';
- if (strcmp(subsystem, "net") == 0 ||
- strstr(path, "/class/net/") != NULL)
+ if (strcmp(subsystem, "net") == 0)
return 'n';
- if (strstr(path, "/class/") != NULL)
+ if (strncmp(path, BLOCK_PATH, strlen(BLOCK_PATH)) == 0 &&
+ strlen(path) > strlen(BLOCK_PATH))
+ return 'b';
+
+ if (strncmp(path, NET_PATH, strlen(NET_PATH)) == 0 &&
+ strlen(path) > strlen(NET_PATH))
+ return 'n';
+
+ if (strncmp(path, CLASS_PATH, strlen(CLASS_PATH)) == 0 &&
+ strlen(path) > strlen(CLASS_PATH))
return 'c';
return '\0';
}
+void udev_set_values(struct udevice *udev, const char* devpath, const char *subsystem)
+{
+ memset(udev, 0x00, sizeof(struct udevice));
+ strfieldcpy(udev->devpath, devpath);
+ strfieldcpy(udev->subsystem, subsystem);
+ udev->type = get_device_type(devpath, subsystem);
+}
+
+int create_path(const char *path)
+{
+ char p[NAME_SIZE];
+ char *pos;
+ struct stat stats;
+
+ strcpy (p, path);
+ pos = strrchr(p, '/');
+ if (pos == p || pos == NULL)
+ return 0;
+
+ while (pos[-1] == '/')
+ pos--;
+
+ pos[0] = '\0';
+
+ dbg("stat '%s'\n", p);
+ if (stat (p, &stats) == 0 && (stats.st_mode & S_IFMT) == S_IFDIR)
+ return 0;
+
+ if (create_path (p) != 0)
+ return -1;
+
+ dbg("mkdir '%s'\n", p);
+ return mkdir(p, 0755);
+}
+
int file_map(const char *filename, char **buf, size_t *bufsize)
{
struct stat stats;
}
if (fstat(fd, &stats) < 0) {
+ close(fd);
return -1;
}
*buf = mmap(NULL, stats.st_size, PROT_READ, MAP_SHARED, fd, 0);
if (*buf == MAP_FAILED) {
+ close(fd);
return -1;
}
*bufsize = stats.st_size;
return count - cur;
}
+void no_trailing_slash(char *path)
+{
+ int len;
+
+ len = strlen(path);
+ if (len > 0 && path[len-1] == '/')
+ path[len-1] = '\0';
+}
+
struct files {
struct list_head list;
char name[NAME_SIZE];
return 0;
}
-/* calls function for file or every file found in directory */
+/* calls function for every file found in specified directory */
int call_foreach_file(int fnct(char *f) , char *dirname, char *suffix)
{
struct dirent *ent;
/* call function for every file in the list */
list_for_each_entry_safe(loop_file, tmp_file, &file_list, list) {
- strfieldcpy(file, dirname);
- strfieldcat(file, "/");
- strfieldcat(file, loop_file->name);
+ snprintf(file, NAME_SIZE-1, "%s/%s", dirname, loop_file->name);
+ file[NAME_SIZE-1] = '\0';
fnct(file);
closedir(dir);
return 0;
}
+
+/* Set the FD_CLOEXEC flag of desc if value is nonzero,
+ or clear the flag if value is 0.
+ Return 0 on success, or -1 on error with errno set. */
+
+int set_cloexec_flag (int desc, int value)
+{
+ int oldflags = fcntl (desc, F_GETFD, 0);
+ /* If reading the flags failed, return error indication now. */
+ if (oldflags < 0)
+ return oldflags;
+ /* Set just the flag we want to set. */
+ if (value != 0)
+ oldflags |= FD_CLOEXEC;
+ else
+ oldflags &= ~FD_CLOEXEC;
+ /* Store modified flag word in the descriptor. */
+ return fcntl (desc, F_SETFD, oldflags);
+}