summaryrefslogtreecommitdiffstats
path: root/common/imd.c
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2016-03-17 16:14:32 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2016-04-01 10:38:55 +0200
commit7f73e64e8b369e655a322cd2877b5a1222f5b245 (patch)
treed4c6a932c6b889c84adc98e135b8c235f048ee66 /common/imd.c
parentb8837986a0a828577426c9d7eb41ca712bfca067 (diff)
downloadbarebox-7f73e64e8b369e655a322cd2877b5a1222f5b245.tar.gz
barebox-7f73e64e8b369e655a322cd2877b5a1222f5b245.tar.xz
imd: Add function to read parameters
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'common/imd.c')
-rw-r--r--common/imd.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/common/imd.c b/common/imd.c
index 1cc4d719ec..241ebbdaed 100644
--- a/common/imd.c
+++ b/common/imd.c
@@ -255,6 +255,37 @@ char *imd_concat_strings(struct imd_header *imd)
return str;
}
+/**
+ * imd_get_param - get a parameter
+ * @imd: The IMD entry
+ * @name: The name of the parameter.
+ *
+ * Parameters have the IMD type IMD_TYPE_PARAMETER and the form
+ * "key=value". This function iterates over the IMD entries and when
+ * it finds a parameter with name "key" it returns the value found.
+ *
+ * Return: A pointer to the value or NULL if the string is not found
+ */
+const char *imd_get_param(struct imd_header *imd, const char *name)
+{
+ struct imd_header *cur;
+ int namelen = strlen(name);
+
+ imd_for_each(imd, cur) {
+ char *data = (char *)(cur + 1);
+
+ if (cur->type != IMD_TYPE_PARAMETER)
+ continue;
+ if (strncmp(name, data, namelen))
+ continue;
+ if (data[namelen] != '=')
+ continue;
+ return data + namelen + 1;
+ }
+
+ return NULL;
+}
+
int imd_command_verbose;
int imd_command(int argc, char *argv[])