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add functions for allocating and adding a string buffer field

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This commit is contained in:
Felix Fietkau 2011-02-04 21:57:59 +01:00
parent 36ddbe83b3
commit 29598e3dc8
2 changed files with 34 additions and 0 deletions
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31
blobmsg.c
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@ -310,6 +310,37 @@ blobmsg_open_nested(struct blob_buf *buf, const char *name, bool array)
return (void *)offset; return (void *)offset;
} }
void *
blobmsg_alloc_string_buffer(struct blob_buf *buf, const char *name, int maxlen)
{
struct blob_attr *attr;
void *data_dest;
attr = blobmsg_new(buf, BLOBMSG_TYPE_STRING, name, maxlen, &data_dest);
if (!attr)
return NULL;
data_dest = blobmsg_data(attr);
blob_set_raw_len(buf->head, blob_pad_len(buf->head) - blob_raw_len(attr));
blob_set_raw_len(attr, blob_raw_len(attr) - maxlen);
return data_dest;
}
void
blobmsg_add_string_buffer(struct blob_buf *buf)
{
struct blob_attr *attr;
int len, attrlen;
attr = blob_next(buf->head);
len = strlen(blobmsg_data(attr)) + 1;
attrlen = blob_raw_len(attr) + len;
blob_set_raw_len(attr, attrlen);
blob_set_raw_len(buf->head, blob_raw_len(buf->head) + attrlen);
}
int int
blobmsg_add_field(struct blob_buf *buf, int type, const char *name, blobmsg_add_field(struct blob_buf *buf, int type, const char *name,
const void *data, int len) const void *data, int len)

3
blobmsg.h
View file

@ -139,6 +139,9 @@ static inline int blobmsg_buf_init(struct blob_buf *buf)
return blob_buf_init(buf, BLOBMSG_TYPE_TABLE); return blob_buf_init(buf, BLOBMSG_TYPE_TABLE);
} }
void *blobmsg_alloc_string_buffer(struct blob_buf *buf, const char *name, int maxlen);
void blobmsg_add_string_buffer(struct blob_buf *buf);
char *blobmsg_format_json(struct blob_attr *attr, bool list); char *blobmsg_format_json(struct blob_attr *attr, bool list);
#define blobmsg_for_each_attr(pos, attr, rem) \ #define blobmsg_for_each_attr(pos, attr, rem) \