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Diffstat (limited to 'namedev.c')
-rw-r--r--namedev.c92
1 files changed, 47 insertions, 45 deletions
diff --git a/namedev.c b/namedev.c
index 49f9e4b1f4..9c73c08149 100644
--- a/namedev.c
+++ b/namedev.c
@@ -35,6 +35,7 @@
#include "libsysfs/sysfs/libsysfs.h"
#include "list.h"
+#include "udev_libc_wrapper.h"
#include "udev.h"
#include "udev_utils.h"
#include "udev_version.h"
@@ -144,14 +145,14 @@ static int get_format_len(char **str)
*/
static int find_free_number(struct udevice *udev, const char *name)
{
- char devpath[NAME_SIZE];
- char filename[NAME_SIZE];
+ char devpath[PATH_SIZE];
+ char filename[PATH_SIZE];
int num = 0;
- strfieldcpy(filename, name);
+ strlcpy(filename, name, sizeof(filename));
while (1) {
dbg("look for existing node '%s'", filename);
- if (udev_db_search_name(devpath, DEVPATH_SIZE, filename) != 0) {
+ if (udev_db_search_name(devpath, sizeof(devpath), filename) != 0) {
dbg("free num=%d", num);
return num;
}
@@ -161,16 +162,16 @@ static int find_free_number(struct udevice *udev, const char *name)
info("find_free_number gone crazy (num=%d), aborted", num);
return -1;
}
- snprintf(filename, NAME_SIZE, "%s%d", name, num);
- filename[NAME_SIZE-1] = '\0';
+ snprintf(filename, sizeof(filename), "%s%d", name, num);
+ filename[sizeof(filename)-1] = '\0';
}
}
static void apply_format(struct udevice *udev, char *string, size_t maxsize,
struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
{
- char temp[NAME_SIZE];
- char temp2[NAME_SIZE];
+ char temp[PATH_SIZE];
+ char temp2[PATH_SIZE];
char *tail, *pos, *cpos, *attr, *rest;
int len;
int i;
@@ -189,36 +190,36 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
tail = pos+1;
len = get_format_len(&tail);
c = tail[0];
- strfieldcpy(temp, tail+1);
+ strlcpy(temp, tail+1, sizeof(temp));
tail = temp;
dbg("format=%c, string='%s', tail='%s'",c , string, tail);
attr = get_format_attribute(&tail);
switch (c) {
case 'p':
- strfieldcatmax(string, udev->devpath, maxsize);
+ strlcat(string, udev->devpath, maxsize);
dbg("substitute kernel name '%s'", udev->kernel_name);
break;
case 'b':
- strfieldcatmax(string, udev->bus_id, maxsize);
+ strlcat(string, udev->bus_id, maxsize);
dbg("substitute bus_id '%s'", udev->bus_id);
break;
case 'k':
- strfieldcatmax(string, udev->kernel_name, maxsize);
+ strlcat(string, udev->kernel_name, maxsize);
dbg("substitute kernel name '%s'", udev->kernel_name);
break;
case 'n':
- strfieldcatmax(string, udev->kernel_number, maxsize);
+ strlcat(string, udev->kernel_number, maxsize);
dbg("substitute kernel number '%s'", udev->kernel_number);
break;
case 'm':
sprintf(temp2, "%d", minor(udev->devt));
- strfieldcatmax(string, temp2, maxsize);
+ strlcat(string, temp2, maxsize);
dbg("substitute minor number '%s'", temp2);
break;
case 'M':
sprintf(temp2, "%d", major(udev->devt));
- strfieldcatmax(string, temp2, maxsize);
+ strlcat(string, temp2, maxsize);
dbg("substitute major number '%s'", temp2);
break;
case 'c':
@@ -241,17 +242,17 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
dbg("requested part of result string not found");
break;
}
- strfieldcpy(temp2, cpos);
+ strlcpy(temp2, cpos, sizeof(temp2));
/* %{2+}c copies the whole string from the second part on */
if (rest[0] != '+') {
cpos = strchr(temp2, ' ');
if (cpos)
cpos[0] = '\0';
}
- strfieldcatmax(string, temp2, maxsize);
+ strlcat(string, temp2, maxsize);
dbg("substitute part of result string '%s'", temp2);
} else {
- strfieldcatmax(string, udev->program_result, maxsize);
+ strlcat(string, udev->program_result, maxsize);
dbg("substitute result string '%s'", udev->program_result);
}
break;
@@ -278,18 +279,18 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
len - i, tmpattr->value);
}
}
- strfieldcatmax(string, tmpattr->value, maxsize);
+ strlcat(string, tmpattr->value, maxsize);
dbg("substitute sysfs value '%s'", tmpattr->value);
break;
case '%':
- strfieldcatmax(string, "%", maxsize);
+ strlcat(string, "%", maxsize);
pos++;
break;
case 'e':
next_free_number = find_free_number(udev, string);
if (next_free_number > 0) {
sprintf(temp2, "%d", next_free_number);
- strfieldcatmax(string, temp2, maxsize);
+ strlcat(string, temp2, maxsize);
}
break;
case 'P':
@@ -303,7 +304,7 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
udev_init_device(&udev_parent, NULL, NULL);
/* lookup the name in the udev_db with the DEVPATH of the parent */
if (udev_db_get_device(&udev_parent, &class_dev_parent->path[strlen(sysfs_path)]) == 0) {
- strfieldcatmax(string, udev_parent.name, maxsize);
+ strlcat(string, udev_parent.name, maxsize);
dbg("substitute parent node name'%s'", udev_parent.name);
} else
dbg("parent not found in database");
@@ -313,15 +314,16 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
case 'N':
if (udev->tmp_node[0] == '\0') {
dbg("create temporary device node for callout");
- snprintf(udev->tmp_node, NAME_SIZE, "%s/.tmp-%u-%u", udev_root, major(udev->devt), minor(udev->devt));
- udev->tmp_node[NAME_SIZE] = '\0';
+ snprintf(udev->tmp_node, sizeof(udev->tmp_node), "%s/.tmp-%u-%u",
+ udev_root, major(udev->devt), minor(udev->devt));
+ udev->tmp_node[sizeof(udev->tmp_node)-1] = '\0';
udev_make_node(udev, udev->tmp_node, udev->devt, 0600, 0, 0);
}
- strfieldcatmax(string, udev->tmp_node, maxsize);
+ strlcat(string, udev->tmp_node, maxsize);
dbg("substitute temporary device node name '%s'", udev->tmp_node);
break;
case 'r':
- strfieldcatmax(string, udev_root, maxsize);
+ strlcat(string, udev_root, maxsize);
dbg("substitute udev_root '%s'", udev_root);
break;
default:
@@ -332,7 +334,7 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
if (len > 0)
pos[len] = '\0';
- strfieldcatmax(string, tail, maxsize);
+ strlcat(string, tail, maxsize);
}
}
@@ -344,11 +346,11 @@ static int execute_program(struct udevice *udev, const char *path, char *value,
int fds[2];
pid_t pid;
char *pos;
- char arg[PROGRAM_SIZE];
- char *argv[(PROGRAM_SIZE / 2) + 1];
+ char arg[PATH_SIZE];
+ char *argv[(sizeof(arg) / 2) + 1];
int i;
- strfieldcpy(arg, path);
+ strlcpy(arg, path, sizeof(arg));
i = 0;
if (strchr(path, ' ')) {
pos = arg;
@@ -516,14 +518,14 @@ static int match_sysfs_pairs(struct config_device *dev, struct sysfs_class_devic
static int match_id(struct config_device *dev, struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
{
- char path[SYSFS_PATH_MAX];
+ char path[PATH_SIZE];
char *temp;
/* we have to have a sysfs device for ID to work */
if (!sysfs_device)
return -ENODEV;
- strfieldcpy(path, sysfs_device->path);
+ strlcpy(path, sysfs_device->path, sizeof(path));
temp = strrchr(path, '/');
temp++;
dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
@@ -535,14 +537,14 @@ static int match_id(struct config_device *dev, struct sysfs_class_device *class_
static int match_place(struct config_device *dev, struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
{
- char path[SYSFS_PATH_MAX];
+ char path[PATH_SIZE];
char *temp;
/* we have to have a sysfs device for PLACE to work */
if (!sysfs_device)
return -ENODEV;
- strfieldcpy(path, sysfs_device->path);
+ strlcpy(path, sysfs_device->path, sizeof(path));
temp = strrchr(path, '/');
dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
if (strstr(temp, dev->place) != NULL)
@@ -653,12 +655,12 @@ try_parent:
/* execute external program */
if (dev->program[0] != '\0') {
- char program[PROGRAM_SIZE];
+ char program[PATH_SIZE];
dbg("check " FIELD_PROGRAM);
- strfieldcpy(program, dev->program);
+ strlcpy(program, dev->program, sizeof(program));
apply_format(udev, program, sizeof(program), class_dev, sysfs_device);
- if (execute_program(udev, program, udev->program_result, NAME_SIZE) != 0) {
+ if (execute_program(udev, program, udev->program_result, sizeof(udev->program_result)) != 0) {
dbg(FIELD_PROGRAM " returned nonzero");
goto try_parent;
}
@@ -707,7 +709,7 @@ int namedev_name_device(struct udevice *udev, struct sysfs_class_device *class_d
if (sysfs_device) {
dbg("found devices device: path='%s', bus_id='%s', bus='%s'",
sysfs_device->path, sysfs_device->bus_id, sysfs_device->bus);
- strfieldcpy(udev->bus_id, sysfs_device->bus_id);
+ strlcpy(udev->bus_id, sysfs_device->bus_id, sizeof(udev->bus_id));
}
dbg("udev->kernel_name='%s'", udev->kernel_name);
@@ -739,24 +741,24 @@ int namedev_name_device(struct udevice *udev, struct sysfs_class_device *class_d
dbg("applied mode=%#o to '%s'", udev->mode, udev->kernel_name);
}
if (dev->owner[0] != '\0') {
- strfieldcpy(udev->owner, dev->owner);
+ strlcpy(udev->owner, dev->owner, sizeof(udev->owner));
apply_format(udev, udev->owner, sizeof(udev->owner), class_dev, sysfs_device);
dbg("applied owner='%s' to '%s'", udev->owner, udev->kernel_name);
}
if (dev->group[0] != '\0') {
- strfieldcpy(udev->group, dev->group);
+ strlcpy(udev->group, dev->group, sizeof(udev->group));
apply_format(udev, udev->group, sizeof(udev->group), class_dev, sysfs_device);
dbg("applied group='%s' to '%s'", udev->group, udev->kernel_name);
}
/* collect symlinks */
if (dev->symlink[0] != '\0') {
- char temp[NAME_SIZE];
+ char temp[PATH_SIZE];
char *pos, *next;
info("configured rule in '%s[%i]' applied, added symlink '%s'",
dev->config_file, dev->config_line, dev->symlink);
- strfieldcpy(temp, dev->symlink);
+ strlcpy(temp, dev->symlink, sizeof(temp));
apply_format(udev, temp, sizeof(temp), class_dev, sysfs_device);
/* add multiple symlinks separated by spaces */
@@ -778,9 +780,9 @@ int namedev_name_device(struct udevice *udev, struct sysfs_class_device *class_d
info("configured rule in '%s[%i]' applied, '%s' becomes '%s'",
dev->config_file, dev->config_line, udev->kernel_name, dev->name);
- strfieldcpy(udev->name, dev->name);
+ strlcpy(udev->name, dev->name, sizeof(udev->name));
apply_format(udev, udev->name, sizeof(udev->name), class_dev, sysfs_device);
- strfieldcpy(udev->config_file, dev->config_file);
+ strlcpy(udev->config_file, dev->config_file, sizeof(udev->config_file));
udev->config_line = dev->config_line;
if (udev->type != NET)
@@ -794,7 +796,7 @@ int namedev_name_device(struct udevice *udev, struct sysfs_class_device *class_d
if (udev->name[0] == '\0') {
/* no rule matched, so we use the kernel name */
- strfieldcpy(udev->name, udev->kernel_name);
+ strlcpy(udev->name, udev->kernel_name, sizeof(udev->name));
dbg("no rule found, use kernel name '%s'", udev->name);
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-25 02:26:41 +0000