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-rw-r--r--libfdt/fdt_ro.c37
1 files changed, 30 insertions, 7 deletions
diff --git a/libfdt/fdt_ro.c b/libfdt/fdt_ro.c
index 6292a00..d566eba 100644
--- a/libfdt/fdt_ro.c
+++ b/libfdt/fdt_ro.c
@@ -84,6 +84,14 @@ const char *fdt_string(const void *fdt, int stroffset)
return (const char *)fdt + fdt_off_dt_strings(fdt) + stroffset;
}
+static int _fdt_string_eq(const void *fdt, int stroffset,
+ const char *s, int len)
+{
+ const char *p = fdt_string(fdt, stroffset);
+
+ return (strlen(p) == len) && (memcmp(p, s, len) == 0);
+}
+
int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size)
{
FDT_CHECK_HEADER(fdt);
@@ -179,9 +187,10 @@ const char *fdt_get_name(const void *fdt, int nodeoffset, int *len)
return NULL;
}
-const struct fdt_property *fdt_get_property(const void *fdt,
- int nodeoffset,
- const char *name, int *lenp)
+const struct fdt_property *fdt_get_property_namelen(const void *fdt,
+ int nodeoffset,
+ const char *name,
+ int namelen, int *lenp)
{
uint32_t tag;
const struct fdt_property *prop;
@@ -214,7 +223,7 @@ const struct fdt_property *fdt_get_property(const void *fdt,
if (! prop)
goto fail;
namestroff = fdt32_to_cpu(prop->nameoff);
- if (strcmp(fdt_string(fdt, namestroff), name) == 0) {
+ if (_fdt_string_eq(fdt, namestroff, name, namelen)) {
/* Found it! */
int len = fdt32_to_cpu(prop->len);
prop = fdt_offset_ptr(fdt, offset,
@@ -242,18 +251,32 @@ const struct fdt_property *fdt_get_property(const void *fdt,
return NULL;
}
-const void *fdt_getprop(const void *fdt, int nodeoffset,
- const char *name, int *lenp)
+const struct fdt_property *fdt_get_property(const void *fdt,
+ int nodeoffset,
+ const char *name, int *lenp)
+{
+ return fdt_get_property_namelen(fdt, nodeoffset, name,
+ strlen(name), lenp);
+}
+
+const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
+ const char *name, int namelen, int *lenp)
{
const struct fdt_property *prop;
- prop = fdt_get_property(fdt, nodeoffset, name, lenp);
+ prop = fdt_get_property_namelen(fdt, nodeoffset, name, namelen, lenp);
if (! prop)
return NULL;
return prop->data;
}
+const void *fdt_getprop(const void *fdt, int nodeoffset,
+ const char *name, int *lenp)
+{
+ return fdt_getprop_namelen(fdt, nodeoffset, name, strlen(name), lenp);
+}
+
uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
{
const uint32_t *php;