X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=blobdiff_plain;f=blobmsg.c;h=0129640f8d0f27c760af0f0c783bafc5215e6882;hp=a77f1582ab823f720c0c11667fe7faa307581b7f;hb=08aada9a932b5abde3f18492568d5b2187b49a32;hpb=3bc18fcadc87a073de47ce94c10fc974104637be diff --git a/blobmsg.c b/blobmsg.c index a77f158..0129640 100644 --- a/blobmsg.c +++ b/blobmsg.c @@ -15,166 +15,6 @@ #include "blobmsg.h" -struct strbuf { - int len; - int pos; - char *buf; -}; - -static bool blobmsg_puts(struct strbuf *s, const char *c, int len) -{ - if (len <= 0) - return true; - - if (s->pos + len >= s->len) { - s->len += 16; - s->buf = realloc(s->buf, s->len); - if (!s->buf) - return false; - } - memcpy(s->buf + s->pos, c, len); - s->pos += len; - return true; -} - -static void blobmsg_format_string(struct strbuf *s, const char *str) -{ - const char *p, *last = str, *end = str + strlen(str); - char buf[8] = "\\u00"; - - blobmsg_puts(s, "\"", 1); - for (p = str; *p; p++) { - char escape = '\0'; - int len; - - switch(*p) { - case '\b': - escape = 'b'; - break; - case '\n': - escape = 'n'; - break; - case '\t': - escape = 't'; - break; - case '\r': - escape = 'r'; - break; - case '"': - case '\\': - case '/': - escape = *p; - break; - default: - if (*p < ' ') - escape = 'u'; - break; - } - - if (!escape) - continue; - - if (p > last) - blobmsg_puts(s, last, p - last); - last = p + 1; - buf[1] = escape; - - if (escape == 'u') { - sprintf(buf + 4, "%02x", (unsigned char) *p); - len = 4; - } else { - len = 2; - } - blobmsg_puts(s, buf, len); - } - - blobmsg_puts(s, last, end - last); - blobmsg_puts(s, "\"", 1); -} - -static void blobmsg_format_json_list(struct strbuf *s, struct blob_attr *attr, int len, bool array); - -static void blobmsg_format_element(struct strbuf *s, struct blob_attr *attr, bool array, bool head) -{ - char buf[32]; - void *data; - int len; - - if (!array && blobmsg_name(attr)[0]) { - blobmsg_format_string(s, blobmsg_name(attr)); - blobmsg_puts(s, ":", 1); - } - if (head) { - data = blob_data(attr); - len = blob_len(attr); - } else { - data = blobmsg_data(attr); - len = blobmsg_data_len(attr); - } - - switch(blob_id(attr)) { - case BLOBMSG_TYPE_INT8: - sprintf(buf, "%d", *(uint8_t *)data); - break; - case BLOBMSG_TYPE_INT16: - sprintf(buf, "%d", *(uint16_t *)data); - break; - case BLOBMSG_TYPE_INT32: - sprintf(buf, "%d", *(uint32_t *)data); - break; - case BLOBMSG_TYPE_INT64: - sprintf(buf, "%lld", *(uint64_t *)data); - break; - case BLOBMSG_TYPE_STRING: - blobmsg_format_string(s, data); - return; - case BLOBMSG_TYPE_ARRAY: - blobmsg_format_json_list(s, data, len, true); - return; - case BLOBMSG_TYPE_TABLE: - blobmsg_format_json_list(s, data, len, false); - return; - } - blobmsg_puts(s, buf, strlen(buf)); -} - -static void blobmsg_format_json_list(struct strbuf *s, struct blob_attr *attr, int len, bool array) -{ - struct blob_attr *pos; - bool first = true; - int rem = len; - - blobmsg_puts(s, (array ? "[ " : "{ "), 2); - __blob_for_each_attr(pos, attr, rem) { - if (!first) - blobmsg_puts(s, ", ", 2); - - blobmsg_format_element(s, pos, array, false); - first = false; - } - blobmsg_puts(s, (array ? " ]" : " }"), 2); -} - -char *blobmsg_format_json(struct blob_attr *attr, bool list) -{ - struct strbuf s; - - s.len = blob_len(attr); - s.buf = malloc(s.len); - s.pos = 0; - - if (list) - blobmsg_format_json_list(&s, blob_data(attr), blob_len(attr), false); - else - blobmsg_format_element(&s, attr, false, false); - - if (!s.len) - return NULL; - - s.buf = realloc(s.buf, s.pos + 1); - return s.buf; -} - static const int blob_type[__BLOBMSG_TYPE_LAST] = { [BLOBMSG_TYPE_INT8] = BLOB_ATTR_INT8, [BLOBMSG_TYPE_INT16] = BLOB_ATTR_INT16, @@ -183,6 +23,12 @@ static const int blob_type[__BLOBMSG_TYPE_LAST] = { [BLOBMSG_TYPE_STRING] = BLOB_ATTR_STRING, }; +static uint16_t +blobmsg_namelen(const struct blobmsg_hdr *hdr) +{ + return be16_to_cpu(hdr->namelen); +} + bool blobmsg_check_attr(const struct blob_attr *attr, bool name) { const struct blobmsg_hdr *hdr; @@ -196,10 +42,10 @@ bool blobmsg_check_attr(const struct blob_attr *attr, bool name) if (!hdr->namelen && name) return false; - if (hdr->namelen > blob_len(attr) - sizeof(struct blobmsg_hdr)) + if (blobmsg_namelen(hdr) > blob_len(attr) - sizeof(struct blobmsg_hdr)) return false; - if (hdr->name[hdr->namelen] != 0) + if (hdr->name[blobmsg_namelen(hdr)] != 0) return false; id = blob_id(attr); @@ -242,14 +88,14 @@ int blobmsg_parse(const struct blobmsg_policy *policy, int policy_len, blob_id(attr) != policy[i].type) continue; - if (hdr->namelen != pslen[i]) + if (blobmsg_namelen(hdr) != pslen[i]) continue; if (!blobmsg_check_attr(attr, true)) return -1; if (tb[i]) - return -1; + continue; if (strcmp(policy[i].name, (char *) hdr->name) != 0) continue; @@ -279,7 +125,7 @@ blobmsg_new(struct blob_buf *buf, int type, const char *name, int payload_len, v return NULL; hdr = blob_data(attr); - hdr->namelen = namelen; + hdr->namelen = cpu_to_be16(namelen); strcpy((char *) hdr->name, (const char *)name); *data = blobmsg_data(attr); @@ -348,10 +194,6 @@ blobmsg_add_field(struct blob_buf *buf, int type, const char *name, struct blob_attr *attr; void *data_dest; - if (type == BLOBMSG_TYPE_ARRAY || - type == BLOBMSG_TYPE_TABLE) - return -1; - attr = blobmsg_new(buf, type, name, len, &data_dest); if (!attr) return -1;