3  * Copyright (c) 2007-2012, Jouni Malinen <j@w1.fi>
19 	unsigned int magic;  member
25 		((const u8 *) buf - sizeof(struct wpabuf_trace));  in wpabuf_get_trace()
34 	if (trace->magic != WPABUF_MAGIC) {  in wpabuf_overflow()
35 		wpa_printf(MSG_ERROR, "wpabuf: invalid magic %x",  in wpabuf_overflow()
36 			   trace->magic);  in wpabuf_overflow()
40 		   buf, (unsigned long) buf->size, (unsigned long) buf->used,  in wpabuf_overflow()
56 		return *_buf == NULL ? -1 : 0;  in wpabuf_resize()
61 	if (trace->magic != WPABUF_MAGIC) {  in wpabuf_resize()
62 		wpa_printf(MSG_ERROR, "wpabuf: invalid magic %x",  in wpabuf_resize()
63 			   trace->magic);  in wpabuf_resize()
64 		wpa_trace_show("wpabuf_resize invalid magic");  in wpabuf_resize()
69 	if (buf->used + add_len > buf->size) {  in wpabuf_resize()
71 		if (buf->flags & WPABUF_FLAG_EXT_DATA) {  in wpabuf_resize()
72 			nbuf = os_realloc(buf->buf, buf->used + add_len);  in wpabuf_resize()
74 				return -1;  in wpabuf_resize()
75 			os_memset(nbuf + buf->used, 0, add_len);  in wpabuf_resize()
76 			buf->buf = nbuf;  in wpabuf_resize()
81 					  buf->used + add_len);  in wpabuf_resize()
83 				return -1;  in wpabuf_resize()
87 				  sizeof(struct wpabuf) + buf->used, 0,  in wpabuf_resize()
91 					  buf->used + add_len);  in wpabuf_resize()
93 				return -1;  in wpabuf_resize()
95 			os_memset(nbuf + sizeof(struct wpabuf) + buf->used, 0,  in wpabuf_resize()
98 			buf->buf = (u8 *) (buf + 1);  in wpabuf_resize()
101 		buf->size = buf->used + add_len;  in wpabuf_resize()
109  * wpabuf_alloc - Allocate a wpabuf of the given size
121 	trace->magic = WPABUF_MAGIC;  in wpabuf_alloc()
129 	buf->size = len;  in wpabuf_alloc()
130 	buf->buf = (u8 *) (buf + 1);  in wpabuf_alloc()
143 	trace->magic = WPABUF_MAGIC;  in wpabuf_alloc_ext_data()
151 	buf->size = len;  in wpabuf_alloc_ext_data()
152 	buf->used = len;  in wpabuf_alloc_ext_data()
153 	buf->buf = data;  in wpabuf_alloc_ext_data()
154 	buf->flags |= WPABUF_FLAG_EXT_DATA;  in wpabuf_alloc_ext_data()
179  * wpabuf_free - Free a wpabuf
189 	if (trace->magic != WPABUF_MAGIC) {  in wpabuf_free()
190 		wpa_printf(MSG_ERROR, "wpabuf_free: invalid magic %x",  in wpabuf_free()
191 			   trace->magic);  in wpabuf_free()
192 		wpa_trace_show("wpabuf_free magic mismatch");  in wpabuf_free()
195 	if (buf->flags & WPABUF_FLAG_EXT_DATA)  in wpabuf_free()
196 		os_free(buf->buf);  in wpabuf_free()
201 	if (buf->flags & WPABUF_FLAG_EXT_DATA)  in wpabuf_free()
202 		os_free(buf->buf);  in wpabuf_free()
220 	buf->used += len;  in wpabuf_put()
221 	if (buf->used > buf->size) {  in wpabuf_put()
229  * wpabuf_concat - Concatenate two buffers into a newly allocated one
264  * wpabuf_zeropad - Pad buffer with 0x00 octets (prefix) to specified length
269  * If buf is longer than len octets or of same size, it will be returned as-is.
289 		os_memset(wpabuf_put(ret, len - blen), 0, len - blen);  in wpabuf_zeropad()
305 	res = vsnprintf(tmp, buf->size - buf->used, fmt, ap);  in wpabuf_printf()
307 	if (res < 0 || (size_t) res >= buf->size - buf->used)  in wpabuf_printf()
309 	buf->used += res;  in wpabuf_printf()
314  * wpabuf_parse_bin - Parse a null terminated string of binary data to a wpabuf
315  * @buf: Buffer with null terminated string (hexdump) of binary data
318  * The string len must be a multiple of two and contain only hexadecimal digits.