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mongoose.c
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#include "mongoose.h"
#ifdef MG_MODULE_LINES
#line 1 "mongoose/src/internal.h"
#endif
/*
* Copyright (c) 2014 Cesanta Software Limited
* All rights reserved
*/
#ifndef CS_MONGOOSE_SRC_INTERNAL_H_
#define CS_MONGOOSE_SRC_INTERNAL_H_
#ifndef MG_MALLOC
#define MG_MALLOC malloc
#endif
#ifndef MG_CALLOC
#define MG_CALLOC calloc
#endif
#ifndef MG_REALLOC
#define MG_REALLOC realloc
#endif
#ifndef MG_FREE
#define MG_FREE free
#endif
#ifndef MBUF_REALLOC
#define MBUF_REALLOC MG_REALLOC
#endif
#ifndef MBUF_FREE
#define MBUF_FREE MG_FREE
#endif
#define MG_SET_PTRPTR(_ptr, _v) \
do { \
if (_ptr) *(_ptr) = _v; \
} while (0)
#ifndef MG_INTERNAL
#define MG_INTERNAL static
#endif
#ifdef PICOTCP
#define NO_LIBC
#define MG_DISABLE_PFS
#endif
/* Amalgamated: #include "mongoose/src/net.h" */
/* Amalgamated: #include "mongoose/src/http.h" */
/* Amalgamated: #include "common/cs_dbg.h" */
#define MG_CTL_MSG_MESSAGE_SIZE 8192
/* internals that need to be accessible in unit tests */
MG_INTERNAL struct mg_connection *mg_do_connect(struct mg_connection *nc,
int proto,
union socket_address *sa);
MG_INTERNAL int mg_parse_address(const char *str, union socket_address *sa,
int *proto, char *host, size_t host_len);
MG_INTERNAL void mg_call(struct mg_connection *nc,
mg_event_handler_t ev_handler, int ev, void *ev_data);
void mg_forward(struct mg_connection *from, struct mg_connection *to);
MG_INTERNAL void mg_add_conn(struct mg_mgr *mgr, struct mg_connection *c);
MG_INTERNAL void mg_remove_conn(struct mg_connection *c);
MG_INTERNAL struct mg_connection *mg_create_connection(
struct mg_mgr *mgr, mg_event_handler_t callback,
struct mg_add_sock_opts opts);
#ifdef _WIN32
/* Retur value is the same as for MultiByteToWideChar. */
int to_wchar(const char *path, wchar_t *wbuf, size_t wbuf_len);
#endif
struct ctl_msg {
mg_event_handler_t callback;
char message[MG_CTL_MSG_MESSAGE_SIZE];
};
#if MG_ENABLE_MQTT
struct mg_mqtt_message;
MG_INTERNAL int parse_mqtt(struct mbuf *io, struct mg_mqtt_message *mm);
#endif
/* Forward declarations for testing. */
extern void *(*test_malloc)(size_t size);
extern void *(*test_calloc)(size_t count, size_t size);
#ifndef MIN
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
#if MG_ENABLE_HTTP
struct mg_serve_http_opts;
/*
* Reassemble the content of the buffer (buf, blen) which should be
* in the HTTP chunked encoding, by collapsing data chunks to the
* beginning of the buffer.
*
* If chunks get reassembled, modify hm->body to point to the reassembled
* body and fire MG_EV_HTTP_CHUNK event. If handler sets MG_F_DELETE_CHUNK
* in nc->flags, delete reassembled body from the mbuf.
*
* Return reassembled body size.
*/
MG_INTERNAL size_t mg_handle_chunked(struct mg_connection *nc,
struct http_message *hm, char *buf,
size_t blen);
MG_INTERNAL int mg_http_common_url_parse(const char *url, const char *schema,
const char *schema_tls, int *use_ssl,
char **user, char **pass, char **addr,
int *port_i, const char **path);
#if MG_ENABLE_FILESYSTEM
MG_INTERNAL int mg_uri_to_local_path(struct http_message *hm,
const struct mg_serve_http_opts *opts,
char **local_path,
struct mg_str *remainder);
MG_INTERNAL time_t mg_parse_date_string(const char *datetime);
MG_INTERNAL int mg_is_not_modified(struct http_message *hm, cs_stat_t *st);
#endif
#if MG_ENABLE_HTTP_CGI
MG_INTERNAL void mg_handle_cgi(struct mg_connection *nc, const char *prog,
const struct mg_str *path_info,
const struct http_message *hm,
const struct mg_serve_http_opts *opts);
struct mg_http_proto_data_cgi;
MG_INTERNAL void mg_http_free_proto_data_cgi(struct mg_http_proto_data_cgi *d);
#endif
#if MG_ENABLE_HTTP_SSI
MG_INTERNAL void mg_handle_ssi_request(struct mg_connection *nc,
struct http_message *hm,
const char *path,
const struct mg_serve_http_opts *opts);
#endif
#if MG_ENABLE_HTTP_WEBDAV
MG_INTERNAL int mg_is_dav_request(const struct mg_str *s);
MG_INTERNAL void mg_handle_propfind(struct mg_connection *nc, const char *path,
cs_stat_t *stp, struct http_message *hm,
struct mg_serve_http_opts *opts);
MG_INTERNAL void mg_handle_lock(struct mg_connection *nc, const char *path);
MG_INTERNAL void mg_handle_mkcol(struct mg_connection *nc, const char *path,
struct http_message *hm);
MG_INTERNAL void mg_handle_move(struct mg_connection *c,
const struct mg_serve_http_opts *opts,
const char *path, struct http_message *hm);
MG_INTERNAL void mg_handle_delete(struct mg_connection *nc,
const struct mg_serve_http_opts *opts,
const char *path);
MG_INTERNAL void mg_handle_put(struct mg_connection *nc, const char *path,
struct http_message *hm);
#endif
#if MG_ENABLE_HTTP_WEBSOCKET
MG_INTERNAL void mg_ws_handler(struct mg_connection *nc, int ev, void *ev_data);
MG_INTERNAL void mg_ws_handshake(struct mg_connection *nc,
const struct mg_str *key);
#endif
#endif /* MG_ENABLE_HTTP */
MG_INTERNAL int mg_get_errno(void);
MG_INTERNAL void mg_close_conn(struct mg_connection *conn);
MG_INTERNAL int mg_http_common_url_parse(const char *url, const char *schema,
const char *schema_tls, int *use_ssl,
char **user, char **pass, char **addr,
int *port_i, const char **path);
#if MG_ENABLE_SNTP
MG_INTERNAL int mg_sntp_parse_reply(const char *buf, int len,
struct mg_sntp_message *msg);
#endif
#endif /* CS_MONGOOSE_SRC_INTERNAL_H_ */
#ifdef MG_MODULE_LINES
#line 1 "common/cs_dbg.h"
#endif
/*
* Copyright (c) 2014-2016 Cesanta Software Limited
* All rights reserved
*/
#ifndef CS_COMMON_CS_DBG_H_
#define CS_COMMON_CS_DBG_H_
/* Amalgamated: #include "common/platform.h" */
#if CS_ENABLE_STDIO
#include <stdio.h>
#endif
#ifndef CS_ENABLE_DEBUG
#define CS_ENABLE_DEBUG 0
#endif
#ifndef CS_LOG_ENABLE_TS_DIFF
#define CS_LOG_ENABLE_TS_DIFF 0
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
enum cs_log_level {
LL_NONE = -1,
LL_ERROR = 0,
LL_WARN = 1,
LL_INFO = 2,
LL_DEBUG = 3,
LL_VERBOSE_DEBUG = 4,
_LL_MIN = -2,
_LL_MAX = 5,
};
void cs_log_set_level(enum cs_log_level level);
#if CS_ENABLE_STDIO
void cs_log_set_file(FILE *file);
extern enum cs_log_level cs_log_level;
void cs_log_print_prefix(const char *func);
void cs_log_printf(const char *fmt, ...);
#define LOG(l, x) \
do { \
if (cs_log_level >= l) { \
cs_log_print_prefix(__func__); \
cs_log_printf x; \
} \
} while (0)
#ifndef CS_NDEBUG
#define DBG(x) \
do { \
if (cs_log_level >= LL_VERBOSE_DEBUG) { \
cs_log_print_prefix(__func__); \
cs_log_printf x; \
} \
} while (0)
#else /* NDEBUG */
#define DBG(x)
#endif
#else /* CS_ENABLE_STDIO */
#define LOG(l, x)
#define DBG(x)
#endif
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* CS_COMMON_CS_DBG_H_ */
#ifdef MG_MODULE_LINES
#line 1 "common/cs_dbg.c"
#endif
/*
* Copyright (c) 2014-2016 Cesanta Software Limited
* All rights reserved
*/
/* Amalgamated: #include "common/cs_dbg.h" */
#include <stdarg.h>
#include <stdio.h>
/* Amalgamated: #include "common/cs_time.h" */
enum cs_log_level cs_log_level WEAK =
#if CS_ENABLE_DEBUG
LL_VERBOSE_DEBUG;
#else
LL_ERROR;
#endif
#if CS_ENABLE_STDIO
FILE *cs_log_file WEAK = NULL;
#if CS_LOG_ENABLE_TS_DIFF
double cs_log_ts WEAK;
#endif
void cs_log_print_prefix(const char *func) WEAK;
void cs_log_print_prefix(const char *func) {
char prefix[21];
strncpy(prefix, func, 20);
prefix[20] = '\0';
if (cs_log_file == NULL) cs_log_file = stderr;
fprintf(cs_log_file, "%-20s ", prefix);
#if CS_LOG_ENABLE_TS_DIFF
{
double now = cs_time();
fprintf(cs_log_file, "%7u ", (unsigned int) ((now - cs_log_ts) * 1000000));
cs_log_ts = now;
}
#endif
}
void cs_log_printf(const char *fmt, ...) WEAK;
void cs_log_printf(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vfprintf(cs_log_file, fmt, ap);
va_end(ap);
fputc('\n', cs_log_file);
fflush(cs_log_file);
}
void cs_log_set_file(FILE *file) WEAK;
void cs_log_set_file(FILE *file) {
cs_log_file = file;
}
#endif /* CS_ENABLE_STDIO */
void cs_log_set_level(enum cs_log_level level) WEAK;
void cs_log_set_level(enum cs_log_level level) {
cs_log_level = level;
#if CS_LOG_ENABLE_TS_DIFF && CS_ENABLE_STDIO
cs_log_ts = cs_time();
#endif
}
#ifdef MG_MODULE_LINES
#line 1 "common/base64.c"
#endif
/*
* Copyright (c) 2014 Cesanta Software Limited
* All rights reserved
*/
#ifndef EXCLUDE_COMMON
/* Amalgamated: #include "common/base64.h" */
#include <string.h>
/* Amalgamated: #include "common/cs_dbg.h" */
/* ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/ */
#define NUM_UPPERCASES ('Z' - 'A' + 1)
#define NUM_LETTERS (NUM_UPPERCASES * 2)
#define NUM_DIGITS ('9' - '0' + 1)
/*
* Emit a base64 code char.
*
* Doesn't use memory, thus it's safe to use to safely dump memory in crashdumps
*/
static void cs_base64_emit_code(struct cs_base64_ctx *ctx, int v) {
if (v < NUM_UPPERCASES) {
ctx->b64_putc(v + 'A', ctx->user_data);
} else if (v < (NUM_LETTERS)) {
ctx->b64_putc(v - NUM_UPPERCASES + 'a', ctx->user_data);
} else if (v < (NUM_LETTERS + NUM_DIGITS)) {
ctx->b64_putc(v - NUM_LETTERS + '0', ctx->user_data);
} else {
ctx->b64_putc(v - NUM_LETTERS - NUM_DIGITS == 0 ? '+' : '/',
ctx->user_data);
}
}
static void cs_base64_emit_chunk(struct cs_base64_ctx *ctx) {
int a, b, c;
a = ctx->chunk[0];
b = ctx->chunk[1];
c = ctx->chunk[2];
cs_base64_emit_code(ctx, a >> 2);
cs_base64_emit_code(ctx, ((a & 3) << 4) | (b >> 4));
if (ctx->chunk_size > 1) {
cs_base64_emit_code(ctx, (b & 15) << 2 | (c >> 6));
}
if (ctx->chunk_size > 2) {
cs_base64_emit_code(ctx, c & 63);
}
}
void cs_base64_init(struct cs_base64_ctx *ctx, cs_base64_putc_t b64_putc,
void *user_data) {
ctx->chunk_size = 0;
ctx->b64_putc = b64_putc;
ctx->user_data = user_data;
}
void cs_base64_update(struct cs_base64_ctx *ctx, const char *str, size_t len) {
const unsigned char *src = (const unsigned char *) str;
size_t i;
for (i = 0; i < len; i++) {
ctx->chunk[ctx->chunk_size++] = src[i];
if (ctx->chunk_size == 3) {
cs_base64_emit_chunk(ctx);
ctx->chunk_size = 0;
}
}
}
void cs_base64_finish(struct cs_base64_ctx *ctx) {
if (ctx->chunk_size > 0) {
int i;
memset(&ctx->chunk[ctx->chunk_size], 0, 3 - ctx->chunk_size);
cs_base64_emit_chunk(ctx);
for (i = 0; i < (3 - ctx->chunk_size); i++) {
ctx->b64_putc('=', ctx->user_data);
}
}
}
#define BASE64_ENCODE_BODY \
static const char *b64 = \
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; \
int i, j, a, b, c; \
\
for (i = j = 0; i < src_len; i += 3) { \
a = src[i]; \
b = i + 1 >= src_len ? 0 : src[i + 1]; \
c = i + 2 >= src_len ? 0 : src[i + 2]; \
\
BASE64_OUT(b64[a >> 2]); \
BASE64_OUT(b64[((a & 3) << 4) | (b >> 4)]); \
if (i + 1 < src_len) { \
BASE64_OUT(b64[(b & 15) << 2 | (c >> 6)]); \
} \
if (i + 2 < src_len) { \
BASE64_OUT(b64[c & 63]); \
} \
} \
\
while (j % 4 != 0) { \
BASE64_OUT('='); \
} \
BASE64_FLUSH()
#define BASE64_OUT(ch) \
do { \
dst[j++] = (ch); \
} while (0)
#define BASE64_FLUSH() \
do { \
dst[j++] = '\0'; \
} while (0)
void cs_base64_encode(const unsigned char *src, int src_len, char *dst) {
BASE64_ENCODE_BODY;
}
#undef BASE64_OUT
#undef BASE64_FLUSH
#if CS_ENABLE_STDIO
#define BASE64_OUT(ch) \
do { \
fprintf(f, "%c", (ch)); \
j++; \
} while (0)
#define BASE64_FLUSH()
void cs_fprint_base64(FILE *f, const unsigned char *src, int src_len) {
BASE64_ENCODE_BODY;
}
#undef BASE64_OUT
#undef BASE64_FLUSH
#endif /* CS_ENABLE_STDIO */
/* Convert one byte of encoded base64 input stream to 6-bit chunk */
static unsigned char from_b64(unsigned char ch) {
/* Inverse lookup map */
static const unsigned char tab[128] = {
255, 255, 255, 255,
255, 255, 255, 255, /* 0 */
255, 255, 255, 255,
255, 255, 255, 255, /* 8 */
255, 255, 255, 255,
255, 255, 255, 255, /* 16 */
255, 255, 255, 255,
255, 255, 255, 255, /* 24 */
255, 255, 255, 255,
255, 255, 255, 255, /* 32 */
255, 255, 255, 62,
255, 255, 255, 63, /* 40 */
52, 53, 54, 55,
56, 57, 58, 59, /* 48 */
60, 61, 255, 255,
255, 200, 255, 255, /* 56 '=' is 200, on index 61 */
255, 0, 1, 2,
3, 4, 5, 6, /* 64 */
7, 8, 9, 10,
11, 12, 13, 14, /* 72 */
15, 16, 17, 18,
19, 20, 21, 22, /* 80 */
23, 24, 25, 255,
255, 255, 255, 255, /* 88 */
255, 26, 27, 28,
29, 30, 31, 32, /* 96 */
33, 34, 35, 36,
37, 38, 39, 40, /* 104 */
41, 42, 43, 44,
45, 46, 47, 48, /* 112 */
49, 50, 51, 255,
255, 255, 255, 255, /* 120 */
};
return tab[ch & 127];
}
int cs_base64_decode(const unsigned char *s, int len, char *dst, int *dec_len) {
unsigned char a, b, c, d;
int orig_len = len;
char *orig_dst = dst;
while (len >= 4 && (a = from_b64(s[0])) != 255 &&
(b = from_b64(s[1])) != 255 && (c = from_b64(s[2])) != 255 &&
(d = from_b64(s[3])) != 255) {
s += 4;
len -= 4;
if (a == 200 || b == 200) break; /* '=' can't be there */
*dst++ = a << 2 | b >> 4;
if (c == 200) break;
*dst++ = b << 4 | c >> 2;
if (d == 200) break;
*dst++ = c << 6 | d;
}
*dst = 0;
if (dec_len != NULL) *dec_len = (dst - orig_dst);
return orig_len - len;
}
#endif /* EXCLUDE_COMMON */
#ifdef MG_MODULE_LINES
#line 1 "common/cs_dirent.h"
#endif
/*
* Copyright (c) 2014-2016 Cesanta Software Limited
* All rights reserved
*/
#ifndef CS_COMMON_CS_DIRENT_H_
#define CS_COMMON_CS_DIRENT_H_
#include <limits.h>
/* Amalgamated: #include "common/platform.h" */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifdef CS_DEFINE_DIRENT
typedef struct { int dummy; } DIR;
struct dirent {
int d_ino;
#ifdef _WIN32
char d_name[MAX_PATH];
#else
/* TODO(rojer): Use PATH_MAX but make sure it's sane on every platform */
char d_name[256];
#endif
};
DIR *opendir(const char *dir_name);
int closedir(DIR *dir);
struct dirent *readdir(DIR *dir);
#endif /* CS_DEFINE_DIRENT */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* CS_COMMON_CS_DIRENT_H_ */
#ifdef MG_MODULE_LINES
#line 1 "common/cs_dirent.c"
#endif
/*
* Copyright (c) 2015 Cesanta Software Limited
* All rights reserved
*/
#ifndef EXCLUDE_COMMON
/* Amalgamated: #include "common/cs_dirent.h" */
/*
* This file contains POSIX opendir/closedir/readdir API implementation
* for systems which do not natively support it (e.g. Windows).
*/
#ifndef MG_FREE
#define MG_FREE free
#endif
#ifndef MG_MALLOC
#define MG_MALLOC malloc
#endif
#ifdef _WIN32
struct win32_dir {
DIR d;
HANDLE handle;
WIN32_FIND_DATAW info;
struct dirent result;
};
DIR *opendir(const char *name) {
struct win32_dir *dir = NULL;
wchar_t wpath[MAX_PATH];
DWORD attrs;
if (name == NULL) {
SetLastError(ERROR_BAD_ARGUMENTS);
} else if ((dir = (struct win32_dir *) MG_MALLOC(sizeof(*dir))) == NULL) {
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
} else {
to_wchar(name, wpath, ARRAY_SIZE(wpath));
attrs = GetFileAttributesW(wpath);
if (attrs != 0xFFFFFFFF && (attrs & FILE_ATTRIBUTE_DIRECTORY)) {
(void) wcscat(wpath, L"\\*");
dir->handle = FindFirstFileW(wpath, &dir->info);
dir->result.d_name[0] = '\0';
} else {
MG_FREE(dir);
dir = NULL;
}
}
return (DIR *) dir;
}
int closedir(DIR *d) {
struct win32_dir *dir = (struct win32_dir *) d;
int result = 0;
if (dir != NULL) {
if (dir->handle != INVALID_HANDLE_VALUE)
result = FindClose(dir->handle) ? 0 : -1;
MG_FREE(dir);
} else {
result = -1;
SetLastError(ERROR_BAD_ARGUMENTS);
}
return result;
}
struct dirent *readdir(DIR *d) {
struct win32_dir *dir = (struct win32_dir *) d;
struct dirent *result = NULL;
if (dir) {
memset(&dir->result, 0, sizeof(dir->result));
if (dir->handle != INVALID_HANDLE_VALUE) {
result = &dir->result;
(void) WideCharToMultiByte(CP_UTF8, 0, dir->info.cFileName, -1,
result->d_name, sizeof(result->d_name), NULL,
NULL);
if (!FindNextFileW(dir->handle, &dir->info)) {
(void) FindClose(dir->handle);
dir->handle = INVALID_HANDLE_VALUE;
}
} else {
SetLastError(ERROR_FILE_NOT_FOUND);
}
} else {
SetLastError(ERROR_BAD_ARGUMENTS);
}
return result;
}
#endif
#endif /* EXCLUDE_COMMON */
/* ISO C requires a translation unit to contain at least one declaration */
typedef int cs_dirent_dummy;
#ifdef MG_MODULE_LINES
#line 1 "common/cs_time.c"
#endif
/*
* Copyright (c) 2014-2016 Cesanta Software Limited
* All rights reserved
*/
/* Amalgamated: #include "common/cs_time.h" */
#ifndef _WIN32
#include <stddef.h>
/*
* There is no sys/time.h on ARMCC.
*/
#if !(defined(__ARMCC_VERSION) || defined(__ICCARM__)) && \
!defined(__TI_COMPILER_VERSION__) && \
(!defined(CS_PLATFORM) || CS_PLATFORM != CS_P_NXP_LPC)
#include <sys/time.h>
#endif
#else
#include <windows.h>
#endif
double cs_time(void) WEAK;
double cs_time(void) {
double now;
#ifndef _WIN32
struct timeval tv;
if (gettimeofday(&tv, NULL /* tz */) != 0) return 0;
now = (double) tv.tv_sec + (((double) tv.tv_usec) / 1000000.0);
#else
SYSTEMTIME sysnow;
FILETIME ftime;
GetLocalTime(&sysnow);
SystemTimeToFileTime(&sysnow, &ftime);
/*
* 1. VC 6.0 doesn't support conversion uint64 -> double, so, using int64
* This should not cause a problems in this (21th) century
* 2. Windows FILETIME is a number of 100-nanosecond intervals since January
* 1, 1601 while time_t is a number of _seconds_ since January 1, 1970 UTC,
* thus, we need to convert to seconds and adjust amount (subtract 11644473600
* seconds)
*/
now = (double) (((int64_t) ftime.dwLowDateTime +
((int64_t) ftime.dwHighDateTime << 32)) /
10000000.0) -
11644473600;
#endif /* _WIN32 */
return now;
}
#ifdef MG_MODULE_LINES
#line 1 "common/cs_endian.h"
#endif
/*
* Copyright (c) 2014-2016 Cesanta Software Limited
* All rights reserved
*/
#ifndef CS_COMMON_CS_ENDIAN_H_
#define CS_COMMON_CS_ENDIAN_H_
/*
* clang with std=-c99 uses __LITTLE_ENDIAN, by default
* while for ex, RTOS gcc - LITTLE_ENDIAN, by default
* it depends on __USE_BSD, but let's have everything
*/
#if !defined(BYTE_ORDER) && defined(__BYTE_ORDER)
#define BYTE_ORDER __BYTE_ORDER
#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN __LITTLE_ENDIAN
#endif /* LITTLE_ENDIAN */
#ifndef BIG_ENDIAN
#define BIG_ENDIAN __LITTLE_ENDIAN
#endif /* BIG_ENDIAN */
#endif /* BYTE_ORDER */
#endif /* CS_COMMON_CS_ENDIAN_H_ */
#ifdef MG_MODULE_LINES
#line 1 "common/md5.c"
#endif
/*
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*/
/* Amalgamated: #include "common/md5.h" */
/* Amalgamated: #include "common/str_util.h" */
#if !defined(EXCLUDE_COMMON)
#if !DISABLE_MD5
/* Amalgamated: #include "common/cs_endian.h" */
static void byteReverse(unsigned char *buf, unsigned longs) {
/* Forrest: MD5 expect LITTLE_ENDIAN, swap if BIG_ENDIAN */
#if BYTE_ORDER == BIG_ENDIAN
do {
uint32_t t = (uint32_t)((unsigned) buf[3] << 8 | buf[2]) << 16 |
((unsigned) buf[1] << 8 | buf[0]);
*(uint32_t *) buf = t;
buf += 4;
} while (--longs);
#else
(void) buf;
(void) longs;
#endif
}
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))
#define MD5STEP(f, w, x, y, z, data, s) \
(w += f(x, y, z) + data, w = w << s | w >> (32 - s), w += x)
/*
* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
* initialization constants.
*/
void MD5_Init(MD5_CTX *ctx) {
ctx->buf[0] = 0x67452301;
ctx->buf[1] = 0xefcdab89;
ctx->buf[2] = 0x98badcfe;
ctx->buf[3] = 0x10325476;
ctx->bits[0] = 0;
ctx->bits[1] = 0;
}
static void MD5Transform(uint32_t buf[4], uint32_t const in[16]) {
register uint32_t a, b, c, d;
a = buf[0];
b = buf[1];
c = buf[2];
d = buf[3];
MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
buf[0] += a;
buf[1] += b;
buf[2] += c;
buf[3] += d;
}
void MD5_Update(MD5_CTX *ctx, const unsigned char *buf, size_t len) {
uint32_t t;
t = ctx->bits[0];
if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t) ctx->bits[1]++;
ctx->bits[1] += (uint32_t) len >> 29;
t = (t >> 3) & 0x3f;
if (t) {
unsigned char *p = (unsigned char *) ctx->in + t;
t = 64 - t;
if (len < t) {
memcpy(p, buf, len);
return;
}
memcpy(p, buf, t);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
buf += t;
len -= t;
}
while (len >= 64) {
memcpy(ctx->in, buf, 64);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
buf += 64;
len -= 64;
}
memcpy(ctx->in, buf, len);
}
void MD5_Final(unsigned char digest[16], MD5_CTX *ctx) {
unsigned count;
unsigned char *p;
uint32_t *a;
count = (ctx->bits[0] >> 3) & 0x3F;
p = ctx->in + count;
*p++ = 0x80;
count = 64 - 1 - count;
if (count < 8) {
memset(p, 0, count);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
memset(ctx->in, 0, 56);
} else {
memset(p, 0, count - 8);
}
byteReverse(ctx->in, 14);
a = (uint32_t *) ctx->in;
a[14] = ctx->bits[0];
a[15] = ctx->bits[1];
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
byteReverse((unsigned char *) ctx->buf, 4);
memcpy(digest, ctx->buf, 16);
memset((char *) ctx, 0, sizeof(*ctx));
}
#endif /* DISABLE_MD5 */
char *cs_md5(char buf[33], ...) {
unsigned char hash[16];
const unsigned char *p;
va_list ap;
MD5_CTX ctx;
MD5_Init(&ctx);
va_start(ap, buf);
while ((p = va_arg(ap, const unsigned char *) ) != NULL) {
size_t len = va_arg(ap, size_t);
MD5_Update(&ctx, p, len);
}
va_end(ap);
MD5_Final(hash, &ctx);
cs_to_hex(buf, hash, sizeof(hash));
return buf;