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* This software is dual-licensed: you can redistribute it and/or modify

* it under the terms of the GNU General Public License version 2 as

* published by the Free Software Foundation. For the terms of this

* license, see <http://www.gnu.org/licenses/>.

* You are free to use this software under the terms of the GNU General

* Public License, but WITHOUT ANY WARRANTY; without even the implied

* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

* See the GNU General Public License for more details.

* Alternatively, you can license this software under a commercial

* license, as set out in <https://www.cesanta.com/license>.

#ifndef CS_MONGOOSE_SRC_COMMON_H_

#define CS_MONGOOSE_SRC_COMMON_H_

#define MG_VERSION "6.4"

/* Local tweaks, applied before any of Mongoose's own headers. */

#ifdef MG_LOCALS

#include <mg_locals.h>

#endif

#if defined(MG_ENABLE_DEBUG) && !defined(CS_ENABLE_DEBUG)

#define CS_ENABLE_DEBUG

#endif

#if defined(MG_DISABLE_STDIO) && !defined(CS_DISABLE_STDIO)

#define CS_DISABLE_STDIO

#elif defined(CS_DISABLE_STDIO) && !defined(MG_DISABLE_STDIO)

#define MG_DISABLE_STDIO

#endif

/* All of the below features depend on filesystem access, disable them. */

#ifdef MG_DISABLE_FILESYSTEM

#ifndef MG_DISABLE_DAV

#define MG_DISABLE_DAV

#endif

#ifndef MG_DISABLE_CGI

#define MG_DISABLE_CGI

#endif

#ifndef MG_DISABLE_DIRECTORY_LISTING

#define MG_DISABLE_DIRECTORY_LISTING

#endif

#ifndef MG_DISABLE_DAV

#define MG_DISABLE_DAV

#endif

#endif /* MG_DISABLE_FILESYSTEM */

#ifdef MG_NO_BSD_SOCKETS

#ifndef MG_DISABLE_SYNC_RESOLVER

#define MG_DISABLE_SYNC_RESOLVER

#endif

#ifndef MG_DISABLE_SOCKETPAIR

#define MG_DISABLE_SOCKETPAIR

#endif

#endif /* MG_NO_BSD_SOCKETS */

#endif /* CS_MONGOOSE_SRC_COMMON_H_ */

#ifndef CS_COMMON_PLATFORM_H_

#define CS_COMMON_PLATFORM_H_

* For the "custom" platform, includes and dependencies can be

* provided through mg_locals.h.

#define CS_P_CUSTOM 0

#define CS_P_UNIX 1

#define CS_P_WINDOWS 2

#define CS_P_ESP_LWIP 3

#define CS_P_CC3200 4

#define CS_P_MSP432 5

/* If not specified explicitly, we guess platform by defines. */

#ifndef CS_PLATFORM

#if defined(TARGET_IS_MSP432P4XX) || defined(__MSP432P401R__)

#define CS_PLATFORM CS_P_MSP432

#elif defined(cc3200)

#define CS_PLATFORM CS_P_CC3200

#elif defined(__unix__) || defined(__APPLE__)

#define CS_PLATFORM CS_P_UNIX

#elif defined(_WIN32)

#define CS_PLATFORM CS_P_WINDOWS

#endif

#ifndef CS_PLATFORM

#error "CS_PLATFORM is not specified and we couldn't guess it."

#endif

#endif /* !defined(CS_PLATFORM) */

/* Common stuff */

#ifdef __GNUC__

#define NORETURN __attribute__((noreturn))

#define UNUSED __attribute__((unused))

#define NOINLINE __attribute__((noinline))

#define WARN_UNUSED_RESULT __attribute__((warn_unused_result))

#else

#define NORETURN

#define UNUSED

#define NOINLINE

#define WARN_UNUSED_RESULT

#endif /* __GNUC__ */

#ifndef ARRAY_SIZE

#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))

#endif

#endif /* CS_COMMON_PLATFORM_H_ */

#ifndef CS_COMMON_PLATFORMS_PLATFORM_WINDOWS_H_

#define CS_COMMON_PLATFORMS_PLATFORM_WINDOWS_H_

#if CS_PLATFORM == CS_P_WINDOWS

* MSVC++ 14.0 _MSC_VER == 1900 (Visual Studio 2015)

* MSVC++ 12.0 _MSC_VER == 1800 (Visual Studio 2013)

* MSVC++ 11.0 _MSC_VER == 1700 (Visual Studio 2012)

* MSVC++ 10.0 _MSC_VER == 1600 (Visual Studio 2010)

* MSVC++ 9.0 _MSC_VER == 1500 (Visual Studio 2008)

* MSVC++ 8.0 _MSC_VER == 1400 (Visual Studio 2005)

* MSVC++ 7.1 _MSC_VER == 1310 (Visual Studio 2003)

* MSVC++ 7.0 _MSC_VER == 1300

* MSVC++ 6.0 _MSC_VER == 1200

* MSVC++ 5.0 _MSC_VER == 1100

#ifdef _MSC_VER

#pragma warning(disable : 4127) /* FD_SET() emits warning, disable it */

#pragma warning(disable : 4204) /* missing c99 support */

#endif

#include <assert.h>

#include <direct.h>

#include <errno.h>

#include <fcntl.h>

#include <io.h>

#include <limits.h>

#include <signal.h>

#include <stddef.h>

#include <stdio.h>

#include <stdlib.h>

#include <sys/stat.h>

#include <time.h>

#define random() rand()

#ifdef _MSC_VER

#pragma comment(lib, "ws2_32.lib") /* Linking with winsock library */

#endif

#include <winsock2.h>

#include <ws2tcpip.h>

#include <windows.h>

#include <process.h>

#ifndef EINPROGRESS

#define EINPROGRESS WSAEINPROGRESS

#endif

#ifndef EWOULDBLOCK

#define EWOULDBLOCK WSAEWOULDBLOCK

#endif

#ifndef __func__

#define STRX(x) #x

#define STR(x) STRX(x)

#define __func__ __FILE__ ":" STR(__LINE__)

#endif

#define snprintf _snprintf

#define fileno _fileno

#define vsnprintf _vsnprintf

#define sleep(x) Sleep((x) *1000)

#define to64(x) _atoi64(x)

#if !defined(__MINGW32__) && !defined(__MINGW64__)

#define popen(x, y) _popen((x), (y))

#define pclose(x) _pclose(x)

#endif

#define rmdir _rmdir

#if defined(_MSC_VER) && _MSC_VER >= 1400

#define fseeko(x, y, z) _fseeki64((x), (y), (z))

#else

#define fseeko(x, y, z) fseek((x), (y), (z))

#endif

#define random() rand()

typedef int socklen_t;

typedef signed char int8_t;

typedef unsigned char uint8_t;

typedef int int32_t;

typedef unsigned int uint32_t;

typedef short int16_t;

typedef unsigned short uint16_t;

typedef __int64 int64_t;

typedef unsigned __int64 uint64_t;

typedef SOCKET sock_t;

typedef uint32_t in_addr_t;

#ifndef UINT16_MAX

#define UINT16_MAX 65535

#endif

#ifndef UINT32_MAX

#define UINT32_MAX 4294967295

#endif

#ifndef pid_t

#define pid_t HANDLE

#endif

#define INT64_FMT "I64d"

#define INT64_X_FMT "I64x"

#define SIZE_T_FMT "Iu"

#if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)

typedef struct stat cs_stat_t;

#else

typedef struct _stati64 cs_stat_t;

#endif

#ifndef S_ISDIR

#define S_ISDIR(x) (((x) &_S_IFMT) == _S_IFDIR)

#endif

#ifndef S_ISREG

#define S_ISREG(x) (((x) &_S_IFMT) == _S_IFREG)

#endif

#define DIRSEP '\\'

/* POSIX opendir/closedir/readdir API for Windows. */

struct dirent {

char d_name[MAX_PATH];

};

typedef struct DIR {

HANDLE handle;

WIN32_FIND_DATAW info;

struct dirent result;

} DIR;

DIR *opendir(const char *name);

int closedir(DIR *dir);

struct dirent *readdir(DIR *dir);

#ifndef va_copy

#ifdef __va_copy

#define va_copy __va_copy

#else

#define va_copy(x, y) (x) = (y)

#endif

#ifndef MG_MAX_HTTP_REQUEST_SIZE

#define MG_MAX_HTTP_REQUEST_SIZE 8192

#endif

#ifndef MG_MAX_HTTP_SEND_MBUF

#define MG_MAX_HTTP_SEND_MBUF 4096

#endif

#ifndef MG_MAX_HTTP_HEADERS

#define MG_MAX_HTTP_HEADERS 40

#endif

#endif /* CS_PLATFORM == CS_P_WINDOWS */

#endif /* CS_COMMON_PLATFORMS_PLATFORM_WINDOWS_H_ */

#ifndef CS_COMMON_PLATFORMS_PLATFORM_UNIX_H_

#define CS_COMMON_PLATFORMS_PLATFORM_UNIX_H_

#if CS_PLATFORM == CS_P_UNIX

#ifndef _XOPEN_SOURCE

#define _XOPEN_SOURCE 600

#endif

/* <inttypes.h> wants this for C++ */

#ifndef __STDC_FORMAT_MACROS

#define __STDC_FORMAT_MACROS

#endif

/* C++ wants that for INT64_MAX */

#ifndef __STDC_LIMIT_MACROS

#define __STDC_LIMIT_MACROS

#endif

/* Enable fseeko() and ftello() functions */

#ifndef _LARGEFILE_SOURCE

#define _LARGEFILE_SOURCE

#endif

/* Enable 64-bit file offsets */

#ifndef _FILE_OFFSET_BITS

#define _FILE_OFFSET_BITS 64

#endif

#include <arpa/inet.h>

#include <assert.h>

#include <ctype.h>

#include <dirent.h>

#include <errno.h>

#include <fcntl.h>

#include <inttypes.h>

#include <limits.h>

#include <math.h>

#include <netdb.h>

#include <netinet/in.h>

#include <pthread.h>

#include <signal.h>

#include <stdarg.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/socket.h>

#include <sys/select.h>

#include <sys/stat.h>

#include <sys/time.h>

#include <sys/types.h>

#include <unistd.h>

* osx correctly avoids defining strtoll when compiling in strict ansi mode.

* We require strtoll, and if your embedded pre-c99 compiler lacks one, please

* implement a shim.

#if !(defined(__DARWIN_C_LEVEL) && __DARWIN_C_LEVEL >= 200809L)

long long strtoll(const char *, char **, int);

#endif

typedef int sock_t;

#define INVALID_SOCKET (-1)

#define SIZE_T_FMT "zu"

typedef struct stat cs_stat_t;

#define DIRSEP '/'

#define to64(x) strtoll(x, NULL, 10)

#define INT64_FMT PRId64

#define INT64_X_FMT PRIx64

#define __cdecl

#ifndef va_copy

#ifdef __va_copy

#define va_copy __va_copy

#else

#define va_copy(x, y) (x) = (y)

#endif

#define closesocket(x) close(x)

#ifndef MG_MAX_HTTP_REQUEST_SIZE

#define MG_MAX_HTTP_REQUEST_SIZE 8192

#endif

#ifndef MG_MAX_HTTP_SEND_MBUF

#define MG_MAX_HTTP_SEND_MBUF 4096

#endif

#ifndef MG_MAX_HTTP_HEADERS

#define MG_MAX_HTTP_HEADERS 40

#endif

#endif /* CS_PLATFORM == CS_P_UNIX */

#endif /* CS_COMMON_PLATFORMS_PLATFORM_UNIX_H_ */

#ifndef CS_COMMON_PLATFORMS_PLATFORM_ESP_LWIP_H_

#define CS_COMMON_PLATFORMS_PLATFORM_ESP_LWIP_H_

#if CS_PLATFORM == CS_P_ESP_LWIP

#include <assert.h>

#include <ctype.h>

#include <fcntl.h>

#include <inttypes.h>

#include <string.h>

#include <sys/stat.h>

#include <sys/time.h>

#include <lwip/err.h>

#include <lwip/ip_addr.h>

#include <lwip/inet.h>

#include <lwip/netdb.h>

#include <lwip/dns.h>

#ifndef LWIP_PROVIDE_ERRNO

#include <errno.h>

#endif

#define LWIP_TIMEVAL_PRIVATE 0

#if LWIP_SOCKET

#include <lwip/sockets.h>

#define SOMAXCONN 10

#else

/* We really need the definitions from sockets.h. */

#undef LWIP_SOCKET

#define LWIP_SOCKET 1

#include <lwip/sockets.h>

#undef LWIP_SOCKET

#define LWIP_SOCKET 0

#endif

typedef int sock_t;

#define INVALID_SOCKET (-1)

#define SIZE_T_FMT "u"

typedef struct stat cs_stat_t;

#define DIRSEP '/'

#define to64(x) strtoll(x, NULL, 10)

#define INT64_FMT PRId64

#define INT64_X_FMT PRIx64

#define __cdecl

unsigned long os_random(void);

#define random os_random

#endif /* CS_PLATFORM == CS_P_ESP_LWIP */

#endif /* CS_COMMON_PLATFORMS_PLATFORM_ESP_LWIP_H_ */

#ifndef CS_COMMON_PLATFORMS_PLATFORM_CC3200_H_

#define CS_COMMON_PLATFORMS_PLATFORM_CC3200_H_

#if CS_PLATFORM == CS_P_CC3200

#include <assert.h>

#include <ctype.h>

#include <errno.h>

#include <inttypes.h>

#include <stdint.h>

#include <string.h>

#include <time.h>

#ifndef __TI_COMPILER_VERSION__

#include <fcntl.h>

#include <sys/time.h>

#endif

#define MG_SOCKET_SIMPLELINK 1

#define MG_DISABLE_SOCKETPAIR 1

#define MG_DISABLE_SYNC_RESOLVER 1

#define MG_DISABLE_POPEN 1

#define MG_DISABLE_CGI 1

/* Only SPIFFS supports directories, SLFS does not. */

#ifndef CC3200_FS_SPIFFS

#define MG_DISABLE_DAV 1

#define MG_DISABLE_DIRECTORY_LISTING 1

#endif

typedef int sock_t;

#define INVALID_SOCKET (-1)

#define SIZE_T_FMT "u"

typedef struct stat cs_stat_t;

#define DIRSEP '/'

#define to64(x) strtoll(x, NULL, 10)

#define INT64_FMT PRId64

#define INT64_X_FMT PRIx64

#define __cdecl

#define fileno(x) -1

/* Some functions we implement for Mongoose. */

#ifdef __TI_COMPILER_VERSION__

struct SlTimeval_t;

#define timeval SlTimeval_t

int gettimeofday(struct timeval *t, void *tz);

#endif

long int random(void);

/* TI's libc does not have stat & friends, add them. */

#ifdef __TI_COMPILER_VERSION__

#include <file.h>

typedef unsigned int mode_t;

typedef size_t _off_t;

typedef long ssize_t;

struct stat {

int st_ino;

mode_t st_mode;

int st_nlink;

time_t st_mtime;

off_t st_size;

};

int _stat(const char *pathname, struct stat *st);

#define stat(a, b) _stat(a, b)

#define __S_IFMT 0170000

#define __S_IFDIR 0040000

#define __S_IFCHR 0020000

#define __S_IFREG 0100000

#define __S_ISTYPE(mode, mask) (((mode) &__S_IFMT) == (mask))

#define S_IFDIR __S_IFDIR

#define S_IFCHR __S_IFCHR

#define S_IFREG __S_IFREG

#define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR)

#define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG)

/* As of 5.2.7, TI compiler does not support va_copy() yet. */

#define va_copy(apc, ap) ((apc) = (ap))

#endif /* __TI_COMPILER_VERSION__ */

#ifdef CC3200_FS_SPIFFS

#include <common/spiffs/spiffs.h>

typedef struct {

spiffs_DIR dh;

struct spiffs_dirent de;

} DIR;

#define d_name name

#define dirent spiffs_dirent

DIR *opendir(const char *dir_name);

int closedir(DIR *dir);

struct dirent *readdir(DIR *dir);

#endif /* CC3200_FS_SPIFFS */

#ifdef CC3200_FS_SLFS

#define MG_FS_SLFS

#endif

#endif /* CS_PLATFORM == CS_P_CC3200 */

#endif /* CS_COMMON_PLATFORMS_PLATFORM_CC3200_H_ */

#ifndef CS_COMMON_PLATFORMS_PLATFORM_MSP432_H_

#define CS_COMMON_PLATFORMS_PLATFORM_MSP432_H_

#if CS_PLATFORM == CS_P_MSP432

#include <assert.h>

#include <ctype.h>

#include <errno.h>

#include <inttypes.h>

#include <stdint.h>

#include <string.h>

#include <time.h>

#ifndef __TI_COMPILER_VERSION__

#include <fcntl.h>

#include <sys/time.h>

#endif

#define MG_SOCKET_SIMPLELINK 1

#define MG_DISABLE_SOCKETPAIR 1

#define MG_DISABLE_SYNC_RESOLVER 1

#define MG_DISABLE_POPEN 1

#define MG_DISABLE_CGI 1

#define MG_DISABLE_DAV 1

#define MG_DISABLE_DIRECTORY_LISTING 1

typedef int sock_t;

#define INVALID_SOCKET (-1)

#define SIZE_T_FMT "u"

typedef struct stat cs_stat_t;

#define DIRSEP '/'

#define to64(x) strtoll(x, NULL, 10)

#define INT64_FMT PRId64

#define INT64_X_FMT PRIx64

#define __cdecl

#define fileno(x) -1

/* Some functions we implement for Mongoose. */

#ifdef __TI_COMPILER_VERSION__

struct SlTimeval_t;

#define timeval SlTimeval_t

int gettimeofday(struct timeval *t, void *tz);

#endif

long int random(void);

/* TI's libc does not have stat & friends, add them. */

#ifdef __TI_COMPILER_VERSION__

#include <file.h>

typedef unsigned int mode_t;

typedef size_t _off_t;

typedef long ssize_t;

struct stat {

int st_ino;

mode_t st_mode;

int st_nlink;

time_t st_mtime;

off_t st_size;

};

int _stat(const char *pathname, struct stat *st);

#define stat(a, b) _stat(a, b)

#define __S_IFMT 0170000

#define __S_IFDIR 0040000

#define __S_IFCHR 0020000

#define __S_IFREG 0100000

#define __S_ISTYPE(mode, mask) (((mode) &__S_IFMT) == (mask))

#define S_IFDIR __S_IFDIR

#define S_IFCHR __S_IFCHR

#define S_IFREG __S_IFREG

#define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR)

#define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG)

/* As of 5.2.7, TI compiler does not support va_copy() yet. */

#define va_copy(apc, ap) ((apc) = (ap))

#endif /* __TI_COMPILER_VERSION__ */

#endif /* CS_PLATFORM == CS_P_MSP432 */

#endif /* CS_COMMON_PLATFORMS_PLATFORM_MSP432_H_ */

#ifndef CS_COMMON_PLATFORMS_SIMPLELINK_CS_SIMPLELINK_H_

#define CS_COMMON_PLATFORMS_SIMPLELINK_CS_SIMPLELINK_H_

/* If simplelink.h is already included, all bets are off. */

#if defined(MG_SOCKET_SIMPLELINK) && !defined(__SIMPLELINK_H__)

#include <stdbool.h>

#ifndef __TI_COMPILER_VERSION__

#undef __CONCAT

#undef FD_CLR

#undef FD_ISSET

#undef FD_SET

#undef FD_SETSIZE

#undef FD_ZERO

#undef fd_set

#endif

/* We want to disable SL_INC_STD_BSD_API_NAMING, so we include user.h ourselves

* and undef it. */

#define PROVISIONING_API_H_

#include <simplelink/user.h>

#undef PROVISIONING_API_H_

#undef SL_INC_STD_BSD_API_NAMING

#include <simplelink/include/simplelink.h>

/* Now define only the subset of the BSD API that we use.

* Notably, close(), read() and write() are not defined. */

#define AF_INET SL_AF_INET

#define socklen_t SlSocklen_t

#define sockaddr SlSockAddr_t

#define sockaddr_in SlSockAddrIn_t

#define in_addr SlInAddr_t

#define SOCK_STREAM SL_SOCK_STREAM

#define SOCK_DGRAM SL_SOCK_DGRAM

#define FD_SET SL_FD_SET

#define FD_CLR SL_FD_CLR

#define FD_ISSET SL_FD_ISSET

#define FD_ZERO SL_FD_ZERO

#define fd_set SlFdSet_t

#define htonl sl_Htonl

#define ntohl sl_Ntohl

#define htons sl_Htons

#define ntohs sl_Ntohs

#define accept sl_Accept

#define closesocket sl_Close

#define bind sl_Bind

#define connect sl_Connect

#define listen sl_Listen

#define recv sl_Recv

#define recvfrom sl_RecvFrom

#define send sl_Send

#define sendto sl_SendTo

#define socket sl_Socket

#define select(nfds, rfds, wfds, efds, tout) \

sl_Select((nfds), (rfds), (wfds), (efds), (struct SlTimeval_t *)(tout))

#ifndef EACCES

#define EACCES SL_EACCES

#endif

#ifndef EAFNOSUPPORT

#define EAFNOSUPPORT SL_EAFNOSUPPORT

#endif

#ifndef EAGAIN

#define EAGAIN SL_EAGAIN

#endif

#ifndef EBADF

#define EBADF SL_EBADF

#endif

#ifndef EINVAL

#define EINVAL SL_EINVAL

#endif

#ifndef ENOMEM

#define ENOMEM SL_ENOMEM

#endif

#ifndef EWOULDBLOCK

#define EWOULDBLOCK SL_EWOULDBLOCK

#endif

#define SOMAXCONN 8

const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);

char *inet_ntoa(struct in_addr in);

int inet_pton(int af, const char *src, void *dst);

struct mg_mgr;

typedef void (*mg_init_cb)(struct mg_mgr *mgr);

bool mg_start_task(int priority, int stack_size, mg_init_cb mg_init);

void mg_run_in_task(void (*cb)(struct mg_mgr *mgr, void *arg), void *cb_arg);

int sl_fs_init();

#endif /* defined(MG_SOCKET_SIMPLELINK) && !defined(__SIMPLELINK_H__) */

#endif /* CS_COMMON_PLATFORMS_SIMPLELINK_CS_SIMPLELINK_H_ */

#ifndef CS_COMMON_CS_DBG_H_

#define CS_COMMON_CS_DBG_H_

#ifndef CS_DISABLE_STDIO

#include <stdio.h>

#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);

#ifndef CS_DISABLE_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) \

if (cs_log_level >= l) { \

cs_log_print_prefix(__func__); \

cs_log_printf x; \

}

#ifndef CS_NDEBUG

#define DBG(x) \

if (cs_log_level >= LL_VERBOSE_DEBUG) { \

cs_log_print_prefix(__func__); \

cs_log_printf x; \

}

#else /* NDEBUG */

#define DBG(x)

#endif

#else /* CS_DISABLE_STDIO */

#define LOG(l, x)

#define DBG(x)

#endif

#ifdef __cplusplus

}

#endif /* __cplusplus */

#endif /* CS_COMMON_CS_DBG_H_ */

#ifndef CS_COMMON_CS_TIME_H_

#define CS_COMMON_CS_TIME_H_

#ifdef __cplusplus

extern "C" {

#endif /* __cplusplus */

/* Sub-second granularity time(). */

double cs_time();

#ifdef __cplusplus

}

#endif /* __cplusplus */

#endif /* CS_COMMON_CS_TIME_H_ */

* === Memory Buffers

* Mbufs are mutable/growing memory buffers, like C++ strings.

* Mbuf can append data to the end of a buffer, or insert data into arbitrary

* position in the middle of a buffer. The buffer grows automatically when

* needed.

#ifndef CS_COMMON_MBUF_H_

#define CS_COMMON_MBUF_H_

#if defined(__cplusplus)

extern "C" {

#endif

#include <stdlib.h>

#ifndef MBUF_SIZE_MULTIPLIER

#define MBUF_SIZE_MULTIPLIER 1.5

#endif

/* Memory buffer descriptor */

struct mbuf {

char *buf; /* Buffer pointer */

size_t len; /* Data length. Data is located between offset 0 and len. */

size_t size; /* Buffer size allocated by realloc(1). Must be >= len */

};

* Initialize an Mbuf.

* `initial_capacity` specifies the initial capacity of the mbuf.

void mbuf_init(struct mbuf *, size_t initial_capacity);

/* Free the space allocated for the mbuffer and resets the mbuf structure. */

void mbuf_free(struct mbuf *);

* Appends data to the Mbuf.

* Return the number of bytes appended, or 0 if out of memory.

size_t mbuf_append(struct mbuf *, const void *data, size_t data_size);

* Insert data at a specified offset in the Mbuf.

* Existing data will be shifted forwards and the buffer will

* be grown if necessary.

* Return the number of bytes inserted.

size_t mbuf_insert(struct mbuf *, size_t, const void *, size_t);

/* Remove `data_size` bytes from the beginning of the buffer. */

void mbuf_remove(struct mbuf *, size_t data_size);

* Resize an Mbuf.

* If `new_size` is smaller than buffer's `len`, the

* resize is not performed.

void mbuf_resize(struct mbuf *, size_t new_size);

/* Shrink an Mbuf by resizing its `size` to `len`. */

void mbuf_trim(struct mbuf *);

#if defined(__cplusplus)

}

#endif /* __cplusplus */

#endif /* CS_COMMON_MBUF_H_ */

#ifndef CS_COMMON_SHA1_H_

#define CS_COMMON_SHA1_H_

#ifndef DISABLE_SHA1

#ifdef __cplusplus

extern "C" {

#endif /* __cplusplus */

typedef struct {

uint32_t state[5];

uint32_t count[2];

unsigned char buffer[64];

} cs_sha1_ctx;

void cs_sha1_init(cs_sha1_ctx *);

void cs_sha1_update(cs_sha1_ctx *, const unsigned char *data, uint32_t len);

void cs_sha1_final(unsigned char digest[20], cs_sha1_ctx *);

void cs_hmac_sha1(const unsigned char *key, size_t key_len,

const unsigned char *text, size_t text_len,

unsigned char out[20]);

#ifdef __cplusplus

}

#endif /* __cplusplus */

#endif /* DISABLE_SHA1 */

#endif /* CS_COMMON_SHA1_H_ */

#ifndef CS_COMMON_MD5_H_

#define CS_COMMON_MD5_H_

#ifdef __cplusplus

extern "C" {

#endif /* __cplusplus */

typedef struct MD5Context {

uint32_t buf[4];

uint32_t bits[2];

unsigned char in[64];

} MD5_CTX;

void MD5_Init(MD5_CTX *c);

void MD5_Update(MD5_CTX *c, const unsigned char *data, size_t len);

void MD5_Final(unsigned char *md, MD5_CTX *c);

* Return stringified MD5 hash for NULL terminated list of strings.

* Example:

* char buf[33];

* cs_md5(buf, "foo", "bar", NULL);

char *cs_md5(char buf[33], ...);

* Stringify binary data. Output buffer size must be 2 * size_of_input + 1

* because each byte of input takes 2 bytes in string representation

* plus 1 byte for the terminating \0 character.

void cs_to_hex(char *to, const unsigned char *p, size_t len);

#ifdef __cplusplus

}

#endif /* __cplusplus */

#endif /* CS_COMMON_MD5_H_ */

#ifndef CS_COMMON_BASE64_H_

#define CS_COMMON_BASE64_H_

#ifndef DISABLE_BASE64

#include <stdio.h>

#ifdef __cplusplus

extern "C" {

#endif

typedef void (*cs_base64_putc_t)(char, void *);

struct cs_base64_ctx {

/* cannot call it putc because it's a macro on some environments */

cs_base64_putc_t b64_putc;

unsigned char chunk[3];

int chunk_size;

void *user_data;

};

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