Mercurial > dropbear

comparison buffer.h @ 1057:16584026a1f0 nocircbuffer

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allocate buffer and data in a single allocation
author Matt Johnston <matt@ucc.asn.au>
date Sun, 01 Mar 2015 21:16:09 +0800
parents deed0571cacc
children 2fa71c3b2827 aaf576b27a10
comparison
equal deleted inserted replaced
1056:a2bfd4374878 1057:16584026a1f0
27 #define DROPBEAR_BUFFER_H_ 27 #define DROPBEAR_BUFFER_H_
28 28
29 #include "includes.h" 29 #include "includes.h"
30 30
31 struct buf { 31 struct buf {
32 32 /* don't manipulate data member outside of buffer.c - it
33 is a pointer into the malloc holding buffer itself */
33 unsigned char * data; 34 unsigned char * data;
34 unsigned int len; /* the used size */ 35 unsigned int len; /* the used size */
35 unsigned int pos; 36 unsigned int pos;
36 unsigned int size; /* the memory size */ 37 unsigned int size; /* the memory size */
37 38
38 }; 39 };
39 40
40 typedef struct buf buffer; 41 typedef struct buf buffer;
41 42
42 buffer * buf_new(unsigned int size); 43 buffer * buf_new(unsigned int size);
43 void buf_resize(buffer *buf, unsigned int newsize); 44 /* Possibly returns a new buffer*, like realloc() */
45 buffer * buf_resize(buffer *buf, unsigned int newsize);
44 void buf_free(buffer* buf); 46 void buf_free(buffer* buf);
45 void buf_burn(buffer* buf); 47 void buf_burn(buffer* buf);
46 buffer* buf_newcopy(buffer* buf); 48 buffer* buf_newcopy(buffer* buf);
47 void buf_setlen(buffer* buf, unsigned int len); 49 void buf_setlen(buffer* buf, unsigned int len);
48 void buf_incrlen(buffer* buf, unsigned int incr); 50 void buf_incrlen(buffer* buf, unsigned int incr);