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-rw-r--r--src/openvpn/buffer.h925
1 files changed, 524 insertions, 401 deletions
diff --git a/src/openvpn/buffer.h b/src/openvpn/buffer.h
index 7747003..28b224e 100644
--- a/src/openvpn/buffer.h
+++ b/src/openvpn/buffer.h
@@ -5,7 +5,7 @@
* packet encryption, packet authentication, and
* packet compression.
*
- * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
+ * Copyright (C) 2002-2017 OpenVPN Technologies, Inc. <sales@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
@@ -51,26 +51,26 @@
* location \c buffer.data \c + \c buffer.offset, and has a length of \c
* buffer.len bytes. This, together with the space available before and
* after the content, is represented in the pseudocode below:
-@code
-uint8_t *content_start = buffer.data + buffer.offset;
-uint8_t *content_end = buffer.data + buffer.offset + buffer.len;
-int prepend_capacity = buffer.offset;
-int append_capacity = buffer.capacity - (buffer.offset + buffer.len);
-@endcode
+ * @code
+ * uint8_t *content_start = buffer.data + buffer.offset;
+ * uint8_t *content_end = buffer.data + buffer.offset + buffer.len;
+ * int prepend_capacity = buffer.offset;
+ * int append_capacity = buffer.capacity - (buffer.offset + buffer.len);
+ * @endcode
*/
struct buffer
{
- int capacity; /**< Size in bytes of memory allocated by
+ int capacity; /**< Size in bytes of memory allocated by
* \c malloc(). */
- int offset; /**< Offset in bytes of the actual content
+ int offset; /**< Offset in bytes of the actual content
* within the allocated memory. */
- int len; /**< Length in bytes of the actual content
+ int len; /**< Length in bytes of the actual content
* within the allocated memory. */
- uint8_t *data; /**< Pointer to the allocated memory. */
+ uint8_t *data; /**< Pointer to the allocated memory. */
#ifdef BUF_INIT_TRACKING
- const char *debug_file;
- int debug_line;
+ const char *debug_file;
+ int debug_line;
#endif
};
@@ -87,7 +87,7 @@ struct buffer
*/
struct gc_entry
{
- struct gc_entry *next; /**< Pointer to the next item in the
+ struct gc_entry *next; /**< Pointer to the next item in the
* linked list. */
};
@@ -98,9 +98,9 @@ struct gc_entry
*/
struct gc_entry_special
{
- struct gc_entry_special *next;
- void (*free_fnc)(void*);
- void *addr;
+ struct gc_entry_special *next;
+ void (*free_fnc)(void *);
+ void *addr;
};
@@ -116,9 +116,9 @@ struct gc_entry_special
*/
struct gc_arena
{
- struct gc_entry *list; /**< First element of the linked list of
+ struct gc_entry *list; /**< First element of the linked list of
* \c gc_entry structures. */
- struct gc_entry_special *list_special;
+ struct gc_entry_special *list_special;
};
@@ -128,204 +128,241 @@ struct gc_arena
#define BLEN(buf) (buf_len(buf))
#define BDEF(buf) (buf_defined(buf))
#define BSTR(buf) (buf_str(buf))
-#define BCAP(buf) (buf_forward_capacity (buf))
+#define BCAP(buf) (buf_forward_capacity(buf))
-void buf_clear (struct buffer *buf);
+void buf_clear(struct buffer *buf);
-struct buffer clear_buf (void);
-void free_buf (struct buffer *buf);
+struct buffer clear_buf(void);
-bool buf_assign (struct buffer *dest, const struct buffer *src);
+void free_buf(struct buffer *buf);
-void string_clear (char *str);
-int string_array_len (const char **array);
+bool buf_assign(struct buffer *dest, const struct buffer *src);
-size_t array_mult_safe (const size_t m1, const size_t m2, const size_t extra);
+void string_clear(char *str);
+
+int string_array_len(const char **array);
+
+size_t array_mult_safe(const size_t m1, const size_t m2, const size_t extra);
#define PA_BRACKET (1<<0)
-char *print_argv (const char **p, struct gc_arena *gc, const unsigned int flags);
+char *print_argv(const char **p, struct gc_arena *gc, const unsigned int flags);
-void buf_size_error (const size_t size);
+void buf_size_error(const size_t size);
/* for dmalloc debugging */
#ifdef DMALLOC
-#define alloc_buf(size) alloc_buf_debug (size, __FILE__, __LINE__)
-#define alloc_buf_gc(size, gc) alloc_buf_gc_debug (size, gc, __FILE__, __LINE__);
-#define clone_buf(buf) clone_buf_debug (buf, __FILE__, __LINE__);
-#define gc_malloc(size, clear, arena) gc_malloc_debug (size, clear, arena, __FILE__, __LINE__)
-#define string_alloc(str, gc) string_alloc_debug (str, gc, __FILE__, __LINE__)
-#define string_alloc_buf(str, gc) string_alloc_buf_debug (str, gc, __FILE__, __LINE__)
+#define alloc_buf(size) alloc_buf_debug(size, __FILE__, __LINE__)
+#define alloc_buf_gc(size, gc) alloc_buf_gc_debug(size, gc, __FILE__, __LINE__);
+#define clone_buf(buf) clone_buf_debug(buf, __FILE__, __LINE__);
+#define gc_malloc(size, clear, arena) gc_malloc_debug(size, clear, arena, __FILE__, __LINE__)
+#define string_alloc(str, gc) string_alloc_debug(str, gc, __FILE__, __LINE__)
+#define string_alloc_buf(str, gc) string_alloc_buf_debug(str, gc, __FILE__, __LINE__)
-struct buffer alloc_buf_debug (size_t size, const char *file, int line);
-struct buffer alloc_buf_gc_debug (size_t size, struct gc_arena *gc, const char *file, int line);
-struct buffer clone_buf_debug (const struct buffer* buf, const char *file, int line);
-void *gc_malloc_debug (size_t size, bool clear, struct gc_arena *a, const char *file, int line);
-char *string_alloc_debug (const char *str, struct gc_arena *gc, const char *file, int line);
-struct buffer string_alloc_buf_debug (const char *str, struct gc_arena *gc, const char *file, int line);
+struct buffer alloc_buf_debug(size_t size, const char *file, int line);
-#else
+struct buffer alloc_buf_gc_debug(size_t size, struct gc_arena *gc, const char *file, int line);
-struct buffer alloc_buf (size_t size);
-struct buffer alloc_buf_gc (size_t size, struct gc_arena *gc); /* allocate buffer with garbage collection */
-struct buffer clone_buf (const struct buffer* buf);
-void *gc_malloc (size_t size, bool clear, struct gc_arena *a);
-char *string_alloc (const char *str, struct gc_arena *gc);
-struct buffer string_alloc_buf (const char *str, struct gc_arena *gc);
+struct buffer clone_buf_debug(const struct buffer *buf, const char *file, int line);
-#endif
+void *gc_malloc_debug(size_t size, bool clear, struct gc_arena *a, const char *file, int line);
+
+char *string_alloc_debug(const char *str, struct gc_arena *gc, const char *file, int line);
+
+struct buffer string_alloc_buf_debug(const char *str, struct gc_arena *gc, const char *file, int line);
+
+#else /* ifdef DMALLOC */
+
+struct buffer alloc_buf(size_t size);
+
+struct buffer alloc_buf_gc(size_t size, struct gc_arena *gc); /* allocate buffer with garbage collection */
-void gc_addspecial (void *addr, void (*free_function)(void*), struct gc_arena *a);
+struct buffer clone_buf(const struct buffer *buf);
+
+void *gc_malloc(size_t size, bool clear, struct gc_arena *a);
+
+char *string_alloc(const char *str, struct gc_arena *gc);
+
+struct buffer string_alloc_buf(const char *str, struct gc_arena *gc);
+
+#endif /* ifdef DMALLOC */
+
+void gc_addspecial(void *addr, void (*free_function)(void *), struct gc_arena *a);
#ifdef BUF_INIT_TRACKING
-#define buf_init(buf, offset) buf_init_debug (buf, offset, __FILE__, __LINE__)
-bool buf_init_debug (struct buffer *buf, int offset, const char *file, int line);
+#define buf_init(buf, offset) buf_init_debug(buf, offset, __FILE__, __LINE__)
+bool buf_init_debug(struct buffer *buf, int offset, const char *file, int line);
+
#else
-#define buf_init(buf, offset) buf_init_dowork (buf, offset)
+#define buf_init(buf, offset) buf_init_dowork(buf, offset)
#endif
/* inline functions */
inline static void
-gc_freeaddrinfo_callback (void *addr)
+gc_freeaddrinfo_callback(void *addr)
{
- freeaddrinfo((struct addrinfo*) addr);
+ freeaddrinfo((struct addrinfo *) addr);
}
static inline bool
-buf_defined (const struct buffer *buf)
+buf_defined(const struct buffer *buf)
{
- return buf->data != NULL;
+ return buf->data != NULL;
}
static inline bool
-buf_valid (const struct buffer *buf)
+buf_valid(const struct buffer *buf)
{
- return likely (buf->data != NULL) && likely (buf->len >= 0);
+ return likely(buf->data != NULL) && likely(buf->len >= 0);
}
static inline uint8_t *
-buf_bptr (const struct buffer *buf)
+buf_bptr(const struct buffer *buf)
{
- if (buf_valid (buf))
- return buf->data + buf->offset;
- else
- return NULL;
+ if (buf_valid(buf))
+ {
+ return buf->data + buf->offset;
+ }
+ else
+ {
+ return NULL;
+ }
}
static int
-buf_len (const struct buffer *buf)
+buf_len(const struct buffer *buf)
{
- if (buf_valid (buf))
- return buf->len;
- else
- return 0;
+ if (buf_valid(buf))
+ {
+ return buf->len;
+ }
+ else
+ {
+ return 0;
+ }
}
static inline uint8_t *
-buf_bend (const struct buffer *buf)
+buf_bend(const struct buffer *buf)
{
- return buf_bptr (buf) + buf_len (buf);
+ return buf_bptr(buf) + buf_len(buf);
}
static inline uint8_t *
-buf_blast (const struct buffer *buf)
+buf_blast(const struct buffer *buf)
{
- if (buf_len (buf) > 0)
- return buf_bptr (buf) + buf_len (buf) - 1;
- else
- return NULL;
+ if (buf_len(buf) > 0)
+ {
+ return buf_bptr(buf) + buf_len(buf) - 1;
+ }
+ else
+ {
+ return NULL;
+ }
}
static inline bool
-buf_size_valid (const size_t size)
+buf_size_valid(const size_t size)
{
- return likely (size < BUF_SIZE_MAX);
+ return likely(size < BUF_SIZE_MAX);
}
static inline bool
-buf_size_valid_signed (const int size)
+buf_size_valid_signed(const int size)
{
- return likely (size >= -BUF_SIZE_MAX) && likely (size < BUF_SIZE_MAX);
+ return likely(size >= -BUF_SIZE_MAX) && likely(size < BUF_SIZE_MAX);
}
static inline char *
-buf_str (const struct buffer *buf)
+buf_str(const struct buffer *buf)
{
- return (char *)buf_bptr(buf);
+ return (char *)buf_bptr(buf);
}
static inline void
-buf_reset (struct buffer *buf)
+buf_reset(struct buffer *buf)
{
- buf->capacity = 0;
- buf->offset = 0;
- buf->len = 0;
- buf->data = NULL;
+ buf->capacity = 0;
+ buf->offset = 0;
+ buf->len = 0;
+ buf->data = NULL;
}
static inline void
-buf_reset_len (struct buffer *buf)
+buf_reset_len(struct buffer *buf)
{
- buf->len = 0;
- buf->offset = 0;
+ buf->len = 0;
+ buf->offset = 0;
}
static inline bool
-buf_init_dowork (struct buffer *buf, int offset)
+buf_init_dowork(struct buffer *buf, int offset)
{
- if (offset < 0 || offset > buf->capacity || buf->data == NULL)
- return false;
- buf->len = 0;
- buf->offset = offset;
- return true;
+ if (offset < 0 || offset > buf->capacity || buf->data == NULL)
+ {
+ return false;
+ }
+ buf->len = 0;
+ buf->offset = offset;
+ return true;
}
static inline void
-buf_set_write (struct buffer *buf, uint8_t *data, int size)
+buf_set_write(struct buffer *buf, uint8_t *data, int size)
{
- if (!buf_size_valid (size))
- buf_size_error (size);
- buf->len = 0;
- buf->offset = 0;
- buf->capacity = size;
- buf->data = data;
- if (size > 0 && data)
- *data = 0;
+ if (!buf_size_valid(size))
+ {
+ buf_size_error(size);
+ }
+ buf->len = 0;
+ buf->offset = 0;
+ buf->capacity = size;
+ buf->data = data;
+ if (size > 0 && data)
+ {
+ *data = 0;
+ }
}
static inline void
-buf_set_read (struct buffer *buf, const uint8_t *data, int size)
+buf_set_read(struct buffer *buf, const uint8_t *data, int size)
{
- if (!buf_size_valid (size))
- buf_size_error (size);
- buf->len = buf->capacity = size;
- buf->offset = 0;
- buf->data = (uint8_t *)data;
+ if (!buf_size_valid(size))
+ {
+ buf_size_error(size);
+ }
+ buf->len = buf->capacity = size;
+ buf->offset = 0;
+ buf->data = (uint8_t *)data;
}
/* Like strncpy but makes sure dest is always null terminated */
static inline void
-strncpynt (char *dest, const char *src, size_t maxlen)
+strncpynt(char *dest, const char *src, size_t maxlen)
{
- strncpy (dest, src, maxlen);
- if (maxlen > 0)
- dest[maxlen - 1] = 0;
+ strncpy(dest, src, maxlen);
+ if (maxlen > 0)
+ {
+ dest[maxlen - 1] = 0;
+ }
}
/* return true if string contains at least one numerical digit */
static inline bool
-has_digit (const unsigned char* src)
+has_digit(const unsigned char *src)
{
- unsigned char c;
- while ((c = *src++))
+ unsigned char c;
+ while ((c = *src++))
{
- if (isdigit(c))
- return true;
+ if (isdigit(c))
+ {
+ return true;
+ }
}
- return false;
+ return false;
}
/**
@@ -353,21 +390,21 @@ has_digit (const unsigned char* src)
* 3. If none of the above are available, use the volatile pointer
* technique to zero memory one byte at a time.
*
- * @param data Pointer to data to zeroise.
- * @param len Length of data, in bytes.
+ * @param data Pointer to data to zeroise.
+ * @param len Length of data, in bytes.
*/
static inline void
-secure_memzero (void *data, size_t len)
+secure_memzero(void *data, size_t len)
{
#if defined(_WIN32)
- SecureZeroMemory (data, len);
+ SecureZeroMemory(data, len);
#elif defined(__GNUC__) || defined(__clang__)
- memset(data, 0, len);
- __asm__ __volatile__("" : : "r"(data) : "memory");
+ memset(data, 0, len);
+ __asm__ __volatile__ ("" : : "r" (data) : "memory");
#else
- volatile char *p = (volatile char *) data;
- while (len--)
- *p++ = 0;
+ volatile char *p = (volatile char *) data;
+ while (len--)
+ *p++ = 0;
#endif
}
@@ -377,20 +414,20 @@ secure_memzero (void *data, size_t len)
* a final null character and thus use only
* capacity - 1
*/
-bool buf_printf (struct buffer *buf, const char *format, ...)
+bool buf_printf(struct buffer *buf, const char *format, ...)
#ifdef __GNUC__
#if __USE_MINGW_ANSI_STDIO
- __attribute__ ((format (gnu_printf, 2, 3)))
+__attribute__ ((format(gnu_printf, 2, 3)))
#else
- __attribute__ ((format (__printf__, 2, 3)))
+__attribute__ ((format(__printf__, 2, 3)))
#endif
#endif
- ;
+;
/*
* puts append to a buffer with overflow check
*/
-bool buf_puts (struct buffer *buf, const char *str);
+bool buf_puts(struct buffer *buf, const char *str);
/*
* Like snprintf but guarantees null termination for size > 0
@@ -398,50 +435,55 @@ bool buf_puts (struct buffer *buf, const char *str);
bool openvpn_snprintf(char *str, size_t size, const char *format, ...)
#ifdef __GNUC__
#if __USE_MINGW_ANSI_STDIO
- __attribute__ ((format (gnu_printf, 3, 4)))
+__attribute__ ((format(gnu_printf, 3, 4)))
#else
- __attribute__ ((format (__printf__, 3, 4)))
+__attribute__ ((format(__printf__, 3, 4)))
#endif
#endif
- ;
+;
/*
* remove/add trailing characters
*/
-void buf_null_terminate (struct buffer *buf);
-void buf_chomp (struct buffer *buf);
-void buf_rmtail (struct buffer *buf, uint8_t remove);
+void buf_null_terminate(struct buffer *buf);
+
+void buf_chomp(struct buffer *buf);
+
+void buf_rmtail(struct buffer *buf, uint8_t remove);
/*
* non-buffer string functions
*/
-void chomp (char *str);
-void rm_trailing_chars (char *str, const char *what_to_delete);
-const char *skip_leading_whitespace (const char *str);
-void string_null_terminate (char *str, int len, int capacity);
+void chomp(char *str);
+
+void rm_trailing_chars(char *str, const char *what_to_delete);
+
+const char *skip_leading_whitespace(const char *str);
+
+void string_null_terminate(char *str, int len, int capacity);
/*
* Write string in buf to file descriptor fd.
* NOTE: requires that string be null terminated.
*/
-void buf_write_string_file (const struct buffer *buf, const char *filename, int fd);
+void buf_write_string_file(const struct buffer *buf, const char *filename, int fd);
/*
* write a string to the end of a buffer that was
* truncated by buf_printf
*/
-void buf_catrunc (struct buffer *buf, const char *str);
+void buf_catrunc(struct buffer *buf, const char *str);
/*
* convert a multi-line output to one line
*/
-void convert_to_one_line (struct buffer *buf);
+void convert_to_one_line(struct buffer *buf);
/*
* Parse a string based on a given delimiter char
*/
-bool buf_parse (struct buffer *buf, const int delim, char *line, const int size);
+bool buf_parse(struct buffer *buf, const int delim, char *line, const int size);
/*
* Hex dump -- Output a binary buffer to a hex string and return it.
@@ -449,88 +491,104 @@ bool buf_parse (struct buffer *buf, const int delim, char *line, const int size)
#define FHE_SPACE_BREAK_MASK 0xFF /* space_break parameter in lower 8 bits */
#define FHE_CAPS 0x100 /* output hex in caps */
char *
-format_hex_ex (const uint8_t *data, int size, int maxoutput,
- unsigned int space_break_flags, const char* separator,
- struct gc_arena *gc);
+format_hex_ex(const uint8_t *data, int size, int maxoutput,
+ unsigned int space_break_flags, const char *separator,
+ struct gc_arena *gc);
static inline char *
-format_hex (const uint8_t *data, int size, int maxoutput, struct gc_arena *gc)
+format_hex(const uint8_t *data, int size, int maxoutput, struct gc_arena *gc)
{
- return format_hex_ex (data, size, maxoutput, 4, " ", gc);
+ return format_hex_ex(data, size, maxoutput, 4, " ", gc);
}
/*
* Return a buffer that is a subset of another buffer.
*/
-struct buffer buf_sub (struct buffer *buf, int size, bool prepend);
+struct buffer buf_sub(struct buffer *buf, int size, bool prepend);
/*
* Check if sufficient space to append to buffer.
*/
static inline bool
-buf_safe (const struct buffer *buf, int len)
+buf_safe(const struct buffer *buf, int len)
{
- return buf_valid (buf) && buf_size_valid (len)
- && buf->offset + buf->len + len <= buf->capacity;
+ return buf_valid(buf) && buf_size_valid(len)
+ && buf->offset + buf->len + len <= buf->capacity;
}
static inline bool
-buf_safe_bidir (const struct buffer *buf, int len)
+buf_safe_bidir(const struct buffer *buf, int len)
{
- if (buf_valid (buf) && buf_size_valid_signed (len))
+ if (buf_valid(buf) && buf_size_valid_signed(len))
{
- const int newlen = buf->len + len;
- return newlen >= 0 && buf->offset + newlen <= buf->capacity;
+ const int newlen = buf->len + len;
+ return newlen >= 0 && buf->offset + newlen <= buf->capacity;
+ }
+ else
+ {
+ return false;
}
- else
- return false;
}
static inline int
-buf_forward_capacity (const struct buffer *buf)
+buf_forward_capacity(const struct buffer *buf)
{
- if (buf_valid (buf))
+ if (buf_valid(buf))
{
- int ret = buf->capacity - (buf->offset + buf->len);
- if (ret < 0)
- ret = 0;
- return ret;
+ int ret = buf->capacity - (buf->offset + buf->len);
+ if (ret < 0)
+ {
+ ret = 0;
+ }
+ return ret;
+ }
+ else
+ {
+ return 0;
}
- else
- return 0;
}
static inline int
-buf_forward_capacity_total (const struct buffer *buf)
+buf_forward_capacity_total(const struct buffer *buf)
{
- if (buf_valid (buf))
+ if (buf_valid(buf))
{
- int ret = buf->capacity - buf->offset;
- if (ret < 0)
- ret = 0;
- return ret;
+ int ret = buf->capacity - buf->offset;
+ if (ret < 0)
+ {
+ ret = 0;
+ }
+ return ret;
+ }
+ else
+ {
+ return 0;
}
- else
- return 0;
}
static inline int
-buf_reverse_capacity (const struct buffer *buf)
+buf_reverse_capacity(const struct buffer *buf)
{
- if (buf_valid (buf))
- return buf->offset;
- else
- return 0;
+ if (buf_valid(buf))
+ {
+ return buf->offset;
+ }
+ else
+ {
+ return 0;
+ }
}
static inline bool
-buf_inc_len (struct buffer *buf, int inc)
+buf_inc_len(struct buffer *buf, int inc)
{
- if (!buf_safe_bidir (buf, inc))
- return false;
- buf->len += inc;
- return true;
+ if (!buf_safe_bidir(buf, inc))
+ {
+ return false;
+ }
+ buf->len += inc;
+ return true;
}
/*
@@ -539,23 +597,27 @@ buf_inc_len (struct buffer *buf, int inc)
*/
static inline uint8_t *
-buf_prepend (struct buffer *buf, int size)
+buf_prepend(struct buffer *buf, int size)
{
- if (!buf_valid (buf) || size < 0 || size > buf->offset)
- return NULL;
- buf->offset -= size;
- buf->len += size;
- return BPTR (buf);
+ if (!buf_valid(buf) || size < 0 || size > buf->offset)
+ {
+ return NULL;
+ }
+ buf->offset -= size;
+ buf->len += size;
+ return BPTR(buf);
}
static inline bool
-buf_advance (struct buffer *buf, int size)
+buf_advance(struct buffer *buf, int size)
{
- if (!buf_valid (buf) || size < 0 || buf->len < size)
- return false;
- buf->offset += size;
- buf->len -= size;
- return true;
+ if (!buf_valid(buf) || size < 0 || buf->len < size)
+ {
+ return false;
+ }
+ buf->offset += size;
+ buf->len -= size;
+ return true;
}
/*
@@ -564,176 +626,204 @@ buf_advance (struct buffer *buf, int size)
*/
static inline uint8_t *
-buf_write_alloc (struct buffer *buf, int size)
+buf_write_alloc(struct buffer *buf, int size)
{
- uint8_t *ret;
- if (!buf_safe (buf, size))
- return NULL;
- ret = BPTR (buf) + buf->len;
- buf->len += size;
- return ret;
+ uint8_t *ret;
+ if (!buf_safe(buf, size))
+ {
+ return NULL;
+ }
+ ret = BPTR(buf) + buf->len;
+ buf->len += size;
+ return ret;
}
static inline uint8_t *
-buf_write_alloc_prepend (struct buffer *buf, int size, bool prepend)
+buf_write_alloc_prepend(struct buffer *buf, int size, bool prepend)
{
- return prepend ? buf_prepend (buf, size) : buf_write_alloc (buf, size);
+ return prepend ? buf_prepend(buf, size) : buf_write_alloc(buf, size);
}
static inline uint8_t *
-buf_read_alloc (struct buffer *buf, int size)
+buf_read_alloc(struct buffer *buf, int size)
{
- uint8_t *ret;
- if (size < 0 || buf->len < size)
- return NULL;
- ret = BPTR (buf);
- buf->offset += size;
- buf->len -= size;
- return ret;
+ uint8_t *ret;
+ if (size < 0 || buf->len < size)
+ {
+ return NULL;
+ }
+ ret = BPTR(buf);
+ buf->offset += size;
+ buf->len -= size;
+ return ret;
}
static inline bool
-buf_write (struct buffer *dest, const void *src, int size)
+buf_write(struct buffer *dest, const void *src, int size)
{
- uint8_t *cp = buf_write_alloc (dest, size);
- if (!cp)
- return false;
- memcpy (cp, src, size);
- return true;
+ uint8_t *cp = buf_write_alloc(dest, size);
+ if (!cp)
+ {
+ return false;
+ }
+ memcpy(cp, src, size);
+ return true;
}
static inline bool
-buf_write_prepend (struct buffer *dest, const void *src, int size)
+buf_write_prepend(struct buffer *dest, const void *src, int size)
{
- uint8_t *cp = buf_prepend (dest, size);
- if (!cp)
- return false;
- memcpy (cp, src, size);
- return true;
+ uint8_t *cp = buf_prepend(dest, size);
+ if (!cp)
+ {
+ return false;
+ }
+ memcpy(cp, src, size);
+ return true;
}
static inline bool
-buf_write_u8 (struct buffer *dest, int data)
+buf_write_u8(struct buffer *dest, int data)
{
- uint8_t u8 = (uint8_t) data;
- return buf_write (dest, &u8, sizeof (uint8_t));
+ uint8_t u8 = (uint8_t) data;
+ return buf_write(dest, &u8, sizeof(uint8_t));
}
static inline bool
-buf_write_u16 (struct buffer *dest, int data)
+buf_write_u16(struct buffer *dest, int data)
{
- uint16_t u16 = htons ((uint16_t) data);
- return buf_write (dest, &u16, sizeof (uint16_t));
+ uint16_t u16 = htons((uint16_t) data);
+ return buf_write(dest, &u16, sizeof(uint16_t));
}
static inline bool
-buf_write_u32 (struct buffer *dest, int data)
+buf_write_u32(struct buffer *dest, int data)
{
- uint32_t u32 = htonl ((uint32_t) data);
- return buf_write (dest, &u32, sizeof (uint32_t));
+ uint32_t u32 = htonl((uint32_t) data);
+ return buf_write(dest, &u32, sizeof(uint32_t));
}
static inline bool
-buf_copy (struct buffer *dest, const struct buffer *src)
+buf_copy(struct buffer *dest, const struct buffer *src)
{
- return buf_write (dest, BPTR (src), BLEN (src));
+ return buf_write(dest, BPTR(src), BLEN(src));
}
static inline bool
-buf_copy_n (struct buffer *dest, struct buffer *src, int n)
+buf_copy_n(struct buffer *dest, struct buffer *src, int n)
{
- uint8_t *cp = buf_read_alloc (src, n);
- if (!cp)
- return false;
- return buf_write (dest, cp, n);
+ uint8_t *cp = buf_read_alloc(src, n);
+ if (!cp)
+ {
+ return false;
+ }
+ return buf_write(dest, cp, n);
}
static inline bool
-buf_copy_range (struct buffer *dest,
- int dest_index,
- const struct buffer *src,
- int src_index,
- int src_len)
-{
- if (src_index < 0
- || src_len < 0
- || src_index + src_len > src->len
- || dest_index < 0
- || dest->offset + dest_index + src_len > dest->capacity)
- return false;
- memcpy (dest->data + dest->offset + dest_index, src->data + src->offset + src_index, src_len);
- if (dest_index + src_len > dest->len)
- dest->len = dest_index + src_len;
- return true;
+buf_copy_range(struct buffer *dest,
+ int dest_index,
+ const struct buffer *src,
+ int src_index,
+ int src_len)
+{
+ if (src_index < 0
+ || src_len < 0
+ || src_index + src_len > src->len
+ || dest_index < 0
+ || dest->offset + dest_index + src_len > dest->capacity)
+ {
+ return false;
+ }
+ memcpy(dest->data + dest->offset + dest_index, src->data + src->offset + src_index, src_len);
+ if (dest_index + src_len > dest->len)
+ {
+ dest->len = dest_index + src_len;
+ }
+ return true;
}
/* truncate src to len, copy excess data beyond len to dest */
static inline bool
-buf_copy_excess (struct buffer *dest,
- struct buffer *src,
- int len)
+buf_copy_excess(struct buffer *dest,
+ struct buffer *src,
+ int len)
{
- if (len < 0)
- return false;
- if (src->len > len)
+ if (len < 0)
+ {
+ return false;
+ }
+ if (src->len > len)
{
- struct buffer b = *src;
- src->len = len;
- if (!buf_advance (&b, len))
- return false;
- return buf_copy (dest, &b);
+ struct buffer b = *src;
+ src->len = len;
+ if (!buf_advance(&b, len))
+ {
+ return false;
+ }
+ return buf_copy(dest, &b);
}
- else
+ else
{
- return true;
+ return true;
}
}
static inline bool
-buf_read (struct buffer *src, void *dest, int size)
+buf_read(struct buffer *src, void *dest, int size)
{
- uint8_t *cp = buf_read_alloc (src, size);
- if (!cp)
- return false;
- memcpy (dest, cp, size);
- return true;
+ uint8_t *cp = buf_read_alloc(src, size);
+ if (!cp)
+ {
+ return false;
+ }
+ memcpy(dest, cp, size);
+ return true;
}
static inline int
-buf_read_u8 (struct buffer *buf)
+buf_read_u8(struct buffer *buf)
{
- int ret;
- if (BLEN (buf) < 1)
- return -1;
- ret = *BPTR(buf);
- buf_advance (buf, 1);
- return ret;
+ int ret;
+ if (BLEN(buf) < 1)
+ {
+ return -1;
+ }
+ ret = *BPTR(buf);
+ buf_advance(buf, 1);
+ return ret;
}
static inline int
-buf_read_u16 (struct buffer *buf)
+buf_read_u16(struct buffer *buf)
{
- uint16_t ret;
- if (!buf_read (buf, &ret, sizeof (uint16_t)))
- return -1;
- return ntohs (ret);
+ uint16_t ret;
+ if (!buf_read(buf, &ret, sizeof(uint16_t)))
+ {
+ return -1;
+ }
+ return ntohs(ret);
}
static inline uint32_t
-buf_read_u32 (struct buffer *buf, bool *good)
+buf_read_u32(struct buffer *buf, bool *good)
{
- uint32_t ret;
- if (!buf_read (buf, &ret, sizeof (uint32_t)))
+ uint32_t ret;
+ if (!buf_read(buf, &ret, sizeof(uint32_t)))
{
- if (good)
- *good = false;
- return 0;
+ if (good)
+ {
+ *good = false;
+ }
+ return 0;
}
- else
+ else
{
- if (good)
- *good = true;
- return ntohl (ret);
+ if (good)
+ {
+ *good = true;
+ }
+ return ntohl(ret);
}
}
@@ -742,11 +832,13 @@ buf_read_u32 (struct buffer *buf, bool *good)
* *NOT* constant time. Do not use when comparing HMACs.
*/
static inline bool
-buf_string_match (const struct buffer *src, const void *match, int size)
+buf_string_match(const struct buffer *src, const void *match, int size)
{
- if (size != src->len)
- return false;
- return memcmp (BPTR (src), match, size) == 0;
+ if (size != src->len)
+ {
+ return false;
+ }
+ return memcmp(BPTR(src), match, size) == 0;
}
/**
@@ -754,21 +846,25 @@ buf_string_match (const struct buffer *src, const void *match, int size)
* *NOT* constant time. Do not use when comparing HMACs.
*/
static inline bool
-buf_string_match_head (const struct buffer *src, const void *match, int size)
+buf_string_match_head(const struct buffer *src, const void *match, int size)
{
- if (size < 0 || size > src->len)
- return false;
- return memcmp (BPTR (src), match, size) == 0;
+ if (size < 0 || size > src->len)
+ {
+ return false;
+ }
+ return memcmp(BPTR(src), match, size) == 0;
}
-bool buf_string_match_head_str (const struct buffer *src, const char *match);
-bool buf_string_compare_advance (struct buffer *src, const char *match);
-int buf_substring_len (const struct buffer *buf, int delim);
+bool buf_string_match_head_str(const struct buffer *src, const char *match);
+
+bool buf_string_compare_advance(struct buffer *src, const char *match);
+
+int buf_substring_len(const struct buffer *buf, int delim);
/*
* Print a string which might be NULL
*/
-const char *np (const char *str);
+const char *np(const char *str);
/*#define CHARACTER_CLASS_DEBUG*/
@@ -813,30 +909,42 @@ const char *np (const char *str);
#define CC_NAME (CC_ALNUM|CC_UNDERBAR)
#define CC_CRLF (CC_CR|CC_NEWLINE)
-bool char_class (const unsigned char c, const unsigned int flags);
-bool string_class (const char *str, const unsigned int inclusive, const unsigned int exclusive);
-bool string_mod (char *str, const unsigned int inclusive, const unsigned int exclusive, const char replace);
+bool char_class(const unsigned char c, const unsigned int flags);
+
+bool string_class(const char *str, const unsigned int inclusive, const unsigned int exclusive);
+
+bool string_mod(char *str, const unsigned int inclusive, const unsigned int exclusive, const char replace);
+
+const char *string_mod_const(const char *str,
+ const unsigned int inclusive,
+ const unsigned int exclusive,
+ const char replace,
+ struct gc_arena *gc);
-const char *string_mod_const (const char *str,
- const unsigned int inclusive,
- const unsigned int exclusive,
- const char replace,
- struct gc_arena *gc);
+void string_replace_leading(char *str, const char match, const char replace);
+
+/** Return true iff str starts with prefix */
+static inline bool
+strprefix(const char *str, const char *prefix)
+{
+ return 0 == strncmp(str, prefix, strlen(prefix));
+}
-void string_replace_leading (char *str, const char match, const char replace);
#ifdef CHARACTER_CLASS_DEBUG
-void character_class_debug (void);
+void character_class_debug(void);
+
#endif
/*
* Verify that a pointer is correctly aligned
*/
#ifdef VERIFY_ALIGNMENT
- void valign4 (const struct buffer *buf, const char *file, const int line);
-# define verify_align_4(ptr) valign4(buf, __FILE__, __LINE__)
+void valign4(const struct buffer *buf, const char *file, const int line);
+
+#define verify_align_4(ptr) valign4(buf, __FILE__, __LINE__)
#else
-# define verify_align_4(ptr)
+#define verify_align_4(ptr)
#endif
/*
@@ -844,51 +952,56 @@ void character_class_debug (void);
* char ptrs to malloced strings.
*/
-void gc_transfer (struct gc_arena *dest, struct gc_arena *src);
+void gc_transfer(struct gc_arena *dest, struct gc_arena *src);
+
+void x_gc_free(struct gc_arena *a);
-void x_gc_free (struct gc_arena *a);
-void x_gc_freespecial (struct gc_arena *a);
+void x_gc_freespecial(struct gc_arena *a);
static inline bool
-gc_defined (struct gc_arena *a)
+gc_defined(struct gc_arena *a)
{
- return a->list != NULL;
+ return a->list != NULL;
}
static inline void
-gc_init (struct gc_arena *a)
+gc_init(struct gc_arena *a)
{
- a->list = NULL;
- a->list_special = NULL;
+ a->list = NULL;
+ a->list_special = NULL;
}
static inline void
-gc_detach (struct gc_arena *a)
+gc_detach(struct gc_arena *a)
{
- gc_init (a);
+ gc_init(a);
}
static inline struct gc_arena
-gc_new (void)
+gc_new(void)
{
- struct gc_arena ret;
- gc_init (&ret);
- return ret;
+ struct gc_arena ret;
+ gc_init(&ret);
+ return ret;
}
static inline void
-gc_free (struct gc_arena *a)
+gc_free(struct gc_arena *a)
{
- if (a->list)
- x_gc_free (a);
- if (a->list_special)
- x_gc_freespecial(a);
+ if (a->list)
+ {
+ x_gc_free(a);
+ }
+ if (a->list_special)
+ {
+ x_gc_freespecial(a);
+ }
}
static inline void
-gc_reset (struct gc_arena *a)
+gc_reset(struct gc_arena *a)
{
- gc_free (a);
+ gc_free(a);
}
/*
@@ -896,57 +1009,59 @@ gc_reset (struct gc_arena *a)
*/
#define ALLOC_OBJ(dptr, type) \
-{ \
- check_malloc_return ((dptr) = (type *) malloc (sizeof (type))); \
-}
+ { \
+ check_malloc_return((dptr) = (type *) malloc(sizeof(type))); \
+ }
#define ALLOC_OBJ_CLEAR(dptr, type) \
-{ \
- ALLOC_OBJ (dptr, type); \
- memset ((dptr), 0, sizeof(type)); \
-}
+ { \
+ ALLOC_OBJ(dptr, type); \
+ memset((dptr), 0, sizeof(type)); \
+ }
#define ALLOC_ARRAY(dptr, type, n) \
-{ \
- check_malloc_return ((dptr) = (type *) malloc (array_mult_safe (sizeof (type), (n), 0))); \
-}
+ { \
+ check_malloc_return((dptr) = (type *) malloc(array_mult_safe(sizeof(type), (n), 0))); \
+ }
#define ALLOC_ARRAY_GC(dptr, type, n, gc) \
-{ \
- (dptr) = (type *) gc_malloc (array_mult_safe (sizeof (type), (n), 0), false, (gc)); \
-}
+ { \
+ (dptr) = (type *) gc_malloc(array_mult_safe(sizeof(type), (n), 0), false, (gc)); \
+ }
#define ALLOC_ARRAY_CLEAR(dptr, type, n) \
-{ \
- ALLOC_ARRAY (dptr, type, n); \
- memset ((dptr), 0, (array_mult_safe (sizeof(type), (n), 0))); \
-}
+ { \
+ ALLOC_ARRAY(dptr, type, n); \
+ memset((dptr), 0, (array_mult_safe(sizeof(type), (n), 0))); \
+ }
#define ALLOC_ARRAY_CLEAR_GC(dptr, type, n, gc) \
-{ \
- (dptr) = (type *) gc_malloc (array_mult_safe (sizeof (type), (n), 0), true, (gc)); \
-}
+ { \
+ (dptr) = (type *) gc_malloc(array_mult_safe(sizeof(type), (n), 0), true, (gc)); \
+ }
-#define ALLOC_VAR_ARRAY_CLEAR_GC(dptr, type, atype, n, gc) \
-{ \
- (dptr) = (type *) gc_malloc (array_mult_safe (sizeof (atype), (n), sizeof (type)), true, (gc)); \
-}
+#define ALLOC_VAR_ARRAY_CLEAR_GC(dptr, type, atype, n, gc) \
+ { \
+ (dptr) = (type *) gc_malloc(array_mult_safe(sizeof(atype), (n), sizeof(type)), true, (gc)); \
+ }
#define ALLOC_OBJ_GC(dptr, type, gc) \
-{ \
- (dptr) = (type *) gc_malloc (sizeof (type), false, (gc)); \
-}
+ { \
+ (dptr) = (type *) gc_malloc(sizeof(type), false, (gc)); \
+ }
#define ALLOC_OBJ_CLEAR_GC(dptr, type, gc) \
-{ \
- (dptr) = (type *) gc_malloc (sizeof (type), true, (gc)); \
-}
+ { \
+ (dptr) = (type *) gc_malloc(sizeof(type), true, (gc)); \
+ }
static inline void
-check_malloc_return (const void *p)
+check_malloc_return(const void *p)
{
- if (!p)
- out_of_memory ();
+ if (!p)
+ {
+ out_of_memory();
+ }
}
/*
@@ -954,32 +1069,40 @@ check_malloc_return (const void *p)
*/
struct buffer_entry
{
- struct buffer buf;
- struct buffer_entry *next;
+ struct buffer buf;
+ struct buffer_entry *next;
};
struct buffer_list
{
- struct buffer_entry *head; /* next item to pop/peek */
- struct buffer_entry *tail; /* last item pushed */
- int size; /* current number of entries */
- int max_size; /* maximum size list should grow to */
+ struct buffer_entry *head; /* next item to pop/peek */
+ struct buffer_entry *tail; /* last item pushed */
+ int size; /* current number of entries */
+ int max_size; /* maximum size list should grow to */
};
-struct buffer_list *buffer_list_new (const int max_size);
-void buffer_list_free (struct buffer_list *ol);
+struct buffer_list *buffer_list_new(const int max_size);
+
+void buffer_list_free(struct buffer_list *ol);
+
+bool buffer_list_defined(const struct buffer_list *ol);
+
+void buffer_list_reset(struct buffer_list *ol);
+
+void buffer_list_push(struct buffer_list *ol, const unsigned char *str);
+
+struct buffer_entry *buffer_list_push_data(struct buffer_list *ol, const uint8_t *data, size_t size);
+
+struct buffer *buffer_list_peek(struct buffer_list *ol);
+
+void buffer_list_advance(struct buffer_list *ol, int n);
+
+void buffer_list_pop(struct buffer_list *ol);
-bool buffer_list_defined (const struct buffer_list *ol);
-void buffer_list_reset (struct buffer_list *ol);
+void buffer_list_aggregate(struct buffer_list *bl, const size_t max);
-void buffer_list_push (struct buffer_list *ol, const unsigned char *str);
-struct buffer_entry *buffer_list_push_data (struct buffer_list *ol, const uint8_t *data, size_t size);
-struct buffer *buffer_list_peek (struct buffer_list *ol);
-void buffer_list_advance (struct buffer_list *ol, int n);
-void buffer_list_pop (struct buffer_list *ol);
+void buffer_list_aggregate_separator(struct buffer_list *bl, const size_t max, const char *sep);
-void buffer_list_aggregate (struct buffer_list *bl, const size_t max);
-void buffer_list_aggregate_separator (struct buffer_list *bl, const size_t max, const char *sep);
+struct buffer_list *buffer_list_file(const char *fn, int max_line_len);
-struct buffer_list *buffer_list_file (const char *fn, int max_line_len);
#endif /* BUFFER_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-10 08:20:17 +0000