Lines Matching refs:buf
22 static struct wpabuf_trace * wpabuf_get_trace(const struct wpabuf *buf)
25 ((const u8 *) buf - sizeof(struct wpabuf_trace));
30 static void wpabuf_overflow(const struct wpabuf *buf, size_t len)
33 struct wpabuf_trace *trace = wpabuf_get_trace(buf);
40 buf, (unsigned long) buf->size, (unsigned long) buf->used,
49 struct wpabuf *buf = *_buf;
54 if (buf == NULL) {
60 trace = wpabuf_get_trace(buf);
69 if (buf->used + add_len > buf->size) {
71 if (buf->flags & WPABUF_FLAG_EXT_DATA) {
72 nbuf = os_realloc(buf->buf, buf->used + add_len);
75 os_memset(nbuf + buf->used, 0, add_len);
76 buf->buf = nbuf;
81 buf->used + add_len);
85 buf = (struct wpabuf *) (trace + 1);
87 sizeof(struct wpabuf) + buf->used, 0,
90 nbuf = os_realloc(buf, sizeof(struct wpabuf) +
91 buf->used + add_len);
94 buf = (struct wpabuf *) nbuf;
95 os_memset(nbuf + sizeof(struct wpabuf) + buf->used, 0,
98 buf->buf = (u8 *) (buf + 1);
99 *_buf = buf;
101 buf->size = buf->used + add_len;
118 struct wpabuf *buf;
122 buf = (struct wpabuf *) (trace + 1);
124 struct wpabuf *buf = os_zalloc(sizeof(struct wpabuf) + len);
125 if (buf == NULL)
129 buf->size = len;
130 buf->buf = (u8 *) (buf + 1);
131 return buf;
140 struct wpabuf *buf;
144 buf = (struct wpabuf *) (trace + 1);
146 struct wpabuf *buf = os_zalloc(sizeof(struct wpabuf));
147 if (buf == NULL)
151 buf->size = len;
152 buf->used = len;
153 buf->buf = data;
154 buf->flags |= WPABUF_FLAG_EXT_DATA;
156 return buf;
162 struct wpabuf *buf = wpabuf_alloc(len);
163 if (buf)
164 wpabuf_put_data(buf, data, len);
165 return buf;
171 struct wpabuf *buf = wpabuf_alloc(wpabuf_len(src));
172 if (buf)
173 wpabuf_put_data(buf, wpabuf_head(src), wpabuf_len(src));
174 return buf;
180 * @buf: wpabuf buffer
182 void wpabuf_free(struct wpabuf *buf)
186 if (buf == NULL)
188 trace = wpabuf_get_trace(buf);
195 if (buf->flags & WPABUF_FLAG_EXT_DATA)
196 os_free(buf->buf);
199 if (buf == NULL)
201 if (buf->flags & WPABUF_FLAG_EXT_DATA)
202 os_free(buf->buf);
203 os_free(buf);
208 void wpabuf_clear_free(struct wpabuf *buf)
210 if (buf) {
211 os_memset(wpabuf_mhead(buf), 0, wpabuf_len(buf));
212 wpabuf_free(buf);
217 void * wpabuf_put(struct wpabuf *buf, size_t len)
219 void *tmp = wpabuf_mhead_u8(buf) + wpabuf_len(buf);
220 buf->used += len;
221 if (buf->used > buf->size) {
222 wpabuf_overflow(buf, len);
265 * @buf: Buffer to be padded
269 * If buf is longer than len octets or of same size, it will be returned as-is.
272 * will only be responsible on freeing the returned buffer. If buf is %NULL,
275 struct wpabuf * wpabuf_zeropad(struct wpabuf *buf, size_t len)
280 if (buf == NULL)
283 blen = wpabuf_len(buf);
285 return buf;
290 wpabuf_put_buf(ret, buf);
292 wpabuf_free(buf);
298 void wpabuf_printf(struct wpabuf *buf, char *fmt, ...)
301 void *tmp = wpabuf_mhead_u8(buf) + wpabuf_len(buf);
305 res = vsnprintf(tmp, buf->size - buf->used, fmt, ap);
307 if (res < 0 || (size_t) res >= buf->size - buf->used)
308 wpabuf_overflow(buf, res);
309 buf->used += res;
315 * @buf: Buffer with null terminated string (hexdump) of binary data
320 struct wpabuf * wpabuf_parse_bin(const char *buf)
325 len = os_strlen(buf);
334 if (hexstr2bin(buf, wpabuf_put(ret, len), len)) {
