ellipsis-base64.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ellipsis-base64.h"
#include "utils/ellipsis-error.h"
#include <stdint.h>

Include dependency graph for ellipsis-base64.c:

Macros
#define	DEC_POS(X)   dec_pos_ ## X
#define	DEC_POS_INIT(C, X)   [C] = DEC_POS(X)
#define	ELLIPSIS_CONTRACT(COUNT, COND, ACTION, VERB, CSTR, CTYPE, ...)
#define	ELLIPSIS_CONTRACT_CHECK_STATIC(CTYPE, COND, CSTR, ...)
#define	ELLIPSIS_CONTRACT_ICE_OR_TRUE(...)
#define	ELLIPSIS_CONTRACT_IMPL(COUNT, COND, ACTION, VERB, CSTR, CTYPE, ...)
#define	ELLIPSIS_CONTRACT_VIOLATION(COUNT, VERB, CTYPE, CSTR, ...)
#define	ELLIPSIS_TEST_ICE(...)   (false ? ELLIPSIS_TO_VOIDS(__VA_ARGS__) : (ellipsis‿contracts‿is_ice*)nullptr)
#define	ELLIPSIS_TO_VOIDS(...)   ((void*)((uintptr_t)((__VA_ARGS__)-(__VA_ARGS__))))
#define	STRINGIFY(...)   STRINGIFY_(__VA_ARGS__)
#define	STRINGIFY_(...)   #__VA_ARGS__

Typedefs
typedef struct ellipsis‿contracts‿is_ice	ellipsis‿contracts‿is_ice

Enumerations
enum	ellipsis_dec_pos {   dec_pos_A , dec_pos_B , dec_pos_C , dec_pos_D ,   dec_pos_E , dec_pos_F , dec_pos_G , dec_pos_H ,   dec_pos_I , dec_pos_J , dec_pos_K , dec_pos_L ,   dec_pos_M , dec_pos_N , dec_pos_O , dec_pos_P ,   dec_pos_Q , dec_pos_R , dec_pos_S , dec_pos_T ,   dec_pos_U , dec_pos_V , dec_pos_W , dec_pos_X ,   dec_pos_Y , dec_pos_Z , dec_pos_a , dec_pos_b ,   dec_pos_c , dec_pos_d , dec_pos_e , dec_pos_f ,   dec_pos_g , dec_pos_h , dec_pos_i , dec_pos_j ,   dec_pos_k , dec_pos_l , dec_pos_m , dec_pos_n ,   dec_pos_o , dec_pos_p , dec_pos_q , dec_pos_r ,   dec_pos_s , dec_pos_t , dec_pos_u , dec_pos_v ,   dec_pos_w , dec_pos_x , dec_pos_y , dec_pos_z ,   dec_pos_0 , dec_pos_1 , dec_pos_2 , dec_pos_3 ,   dec_pos_4 , dec_pos_5 , dec_pos_6 , dec_pos_7 ,   dec_pos_8 , dec_pos_9 , dec_pos_plus , dec_pos_slash }

Functions
ellipsis‿str8 *	ellipsis‿base64‿decode‿_Inner (size_t len, unsigned char const buf[static restrict len])
ellipsis‿str8 *	ellipsis‿base64‿decode‿_Insta (size_t len, unsigned char const buf[static restrict len])
	Decode a string that contains base64 encoded information into a binary data array.
static uint32_t	ellipsis‿base64‿decode_4 (uint32_t c0, uint32_t c1, uint32_t c2, uint32_t c3)
static uint32_t	ellipsis‿base64‿decode_down (uint32_t inp)
char *	ellipsis‿base64‿encode‿_Inner (ellipsis‿str8 const buf[static restrict 1])
char *	ellipsis‿base64‿encode‿_Insta (ellipsis‿str8 const source[static restrict 1])
	Encode binary data into a string that is base64 encoded.
static uint32_t	ellipsis‿base64‿encode_1 (uint32_t c0)
static uint32_t	ellipsis‿base64‿encode_2 (uint32_t c0, uint32_t c1)
static uint32_t	ellipsis‿base64‿encode_3 (uint32_t c0, uint32_t c1, uint32_t c2)
static uint32_t	ellipsis‿base64‿encode_up (uint32_t inp)
static void	ellipsis‿base64‿print_1 (char tar[4], uint32_t enc)
static void	ellipsis‿base64‿print_2 (char tar[4], uint32_t enc)
static void	ellipsis‿base64‿print_3 (char tar[4], uint32_t enc)
static void	ellipsis‿base64‿print_4 (uint8_t tar[static 3], uint32_t enc)

Variables
constexpr unsigned char	ellipsis‿base64‿dec [256]
constexpr char32_t	ellipsis‿base64‿enc [] = U"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
constexpr uint32_t	ellipsis‿base64‿esign = '='
thread_local bool volatile	ellipsis‿contracts‿ignore‿dynamic
thread_local bool volatile	ellipsis‿contracts‿proceed‿dynamic
thread_local bool volatile	ellipsis‿contracts‿verbose‿dynamic

Detailed Description

Warning

This is a file generated by eĿlipsis version 20250309, do not modify

Macro Definition Documentation

DEC_POS

#define DEC_POS

(

X

)

dec_pos_ ## X

DEC_POS_INIT

#define DEC_POS_INIT	(		C,
			X
	)		[C] = DEC_POS(X)

ELLIPSIS_CONTRACT

#define ELLIPSIS_CONTRACT	(		COUNT,
			COND,
			ACTION,
			VERB,
			CSTR,
			CTYPE,
			...
	)

Value:

 \
 do { \
 _Generic( \
 ELLIPSIS_TEST_ICE(COND), \
 ellipsis‿contracts‿is_ice*: ELLIPSIS_CONTRACT_CHECK_STATIC(CTYPE, COND, CSTR __VA_OPT__(,) __VA_ARGS__), \
 default: ELLIPSIS_CONTRACT_IMPL(COUNT, COND, ACTION, VERB, CSTR, CTYPE __VA_OPT__(,) __VA_ARGS__));\
 } while(false)

ELLIPSIS_CONTRACT_CHECK_STATIC

#define ELLIPSIS_CONTRACT_CHECK_STATIC	(		CTYPE,
			COND,
			CSTR,
			...
	)

Value:

 ({\
 static_assert(ELLIPSIS_CONTRACT_ICE_OR_TRUE(COND), \
 "compile time violation of " CTYPE " " CSTR \
 __VA_OPT__(", ") __VA_ARGS__ );\
 })

ELLIPSIS_CONTRACT_ICE_OR_TRUE

#define ELLIPSIS_CONTRACT_ICE_OR_TRUE

(

...

)

Value:

 _Generic( \
 ELLIPSIS_TEST_ICE(__VA_ARGS__), \
 ellipsis‿contracts‿is_ice*: (__VA_ARGS__), \
 default: true)

ELLIPSIS_CONTRACT_IMPL

#define ELLIPSIS_CONTRACT_IMPL	(		COUNT,
			COND,
			ACTION,
			VERB,
			CSTR,
			CTYPE,
			...
	)

Value:

(((false) || (COND)) \
 ? (void)0 \
 : (ELLIPSIS_CONTRACT_VIOLATION(COUNT, VERB, CTYPE, CSTR __VA_OPT__(,) __VA_ARGS__) \
 , ((false) \
 ? (void)0 \
 : ACTION())))

ELLIPSIS_CONTRACT_VIOLATION

#define ELLIPSIS_CONTRACT_VIOLATION	(		COUNT,
			VERB,
			CTYPE,
			CSTR,
			...
	)

Value:

({\
 static char const contract_format_ ## COUNT[]  = \
 __FILE__ ":" STRINGIFY(__LINE__) ": violation of " CTYPE " `" CSTR "`" __VA_OPT__(", ") __VA_ARGS__ "\n";\
 (VERB \
 ? fputs(contract_format_ ## COUNT, stderr) \
 : 0);\
 })

ELLIPSIS_TEST_ICE

#define ELLIPSIS_TEST_ICE

(

...

)

(false ? ELLIPSIS_TO_VOIDS(__VA_ARGS__) : (ellipsis‿contracts‿is_ice*)nullptr)

ELLIPSIS_TO_VOIDS

#define ELLIPSIS_TO_VOIDS

(

...

)

((void*)((uintptr_t)((__VA_ARGS__)-(__VA_ARGS__))))

STRINGIFY

#define STRINGIFY

(

...

)

STRINGIFY_(__VA_ARGS__)

STRINGIFY_

#define STRINGIFY_

(

...

)

#__VA_ARGS__

Typedef Documentation

ellipsis‿contracts‿is_ice

typedef struct ellipsis‿contracts‿is_ice ellipsis‿contracts‿is_ice

Enumeration Type Documentation

ellipsis_dec_pos

enum ellipsis_dec_pos

Enumerator
dec_pos_A
dec_pos_B
dec_pos_C
dec_pos_D
dec_pos_E
dec_pos_F
dec_pos_G
dec_pos_H
dec_pos_I
dec_pos_J
dec_pos_K
dec_pos_L
dec_pos_M
dec_pos_N
dec_pos_O
dec_pos_P
dec_pos_Q
dec_pos_R
dec_pos_S
dec_pos_T
dec_pos_U
dec_pos_V
dec_pos_W
dec_pos_X
dec_pos_Y
dec_pos_Z
dec_pos_a
dec_pos_b
dec_pos_c
dec_pos_d
dec_pos_e
dec_pos_f
dec_pos_g
dec_pos_h
dec_pos_i
dec_pos_j
dec_pos_k
dec_pos_l
dec_pos_m
dec_pos_n
dec_pos_o
dec_pos_p
dec_pos_q
dec_pos_r
dec_pos_s
dec_pos_t
dec_pos_u
dec_pos_v
dec_pos_w
dec_pos_x
dec_pos_y
dec_pos_z
dec_pos_0
dec_pos_1
dec_pos_2
dec_pos_3
dec_pos_4
dec_pos_5
dec_pos_6
dec_pos_7
dec_pos_8
dec_pos_9
dec_pos_plus
dec_pos_slash

Function Documentation

ellipsis‿base64‿decode‿_Inner()

ellipsis‿str8 * ellipsis‿base64‿decode‿_Inner	(	size_t	len,
		unsigned char const	buf[static restrict len]
	)

References ellipsis‿base64‿decode_4(), ellipsis‿base64‿print_4(), and ELLIPSIS_WARNING.

Referenced by ellipsis‿base64‿decode‿_Ctra().

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ellipsis‿base64‿decode‿_Insta()

ellipsis‿str8 * ellipsis‿base64‿decode‿_Insta ( size_t  len, unsigned char const  buf[static restrict len]  )

inline

Decode a string that contains base64 encoded information into a binary data array.

len must be a multiple of 4. In general the length of the output data is then len/4. One byte is added for a null termination.

The returned string is dynamically allocated with malloc. If the target length is not a multiple of 3, (that is if the source string has one or two = characters at the end) one or two bytes are padded with 0 at the end.

start inner defer anchor at level 1

DEFER_TYPE needs a semicolon

end inner defer anchor, level 1

References ellipsis‿base64‿decode‿_Ctra(), and ellipsis‿base64‿decode‿_Insta().

Referenced by ellipsis‿base64‿decode‿_Insta(), and ellipsis‿base64‿decode().

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ellipsis‿base64‿decode_4()

static uint32_t ellipsis‿base64‿decode_4 ( uint32_t  c0, uint32_t  c1, uint32_t  c2, uint32_t  c3  )

static

References ellipsis‿base64‿decode_down().

Referenced by ellipsis‿base64‿decode‿_Inner().

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ellipsis‿base64‿decode_down()

static uint32_t ellipsis‿base64‿decode_down ( uint32_t  inp )

static

References ellipsis‿base64‿dec.

Referenced by ellipsis‿base64‿decode_4().

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ellipsis‿base64‿encode‿_Inner()

char * ellipsis‿base64‿encode‿_Inner

(

ellipsis‿str8 const

buf[static restrict 1]

)

Remarks

This translation unit implements ellipsis‿base64::ellipsis‿base64‿encode, ellipsis‿base64::ellipsis‿base64‿decode

References ellipsis‿base64‿encode_1(), ellipsis‿base64‿encode_2(), ellipsis‿base64‿encode_3(), ellipsis‿base64‿print_1(), ellipsis‿base64‿print_2(), ellipsis‿base64‿print_3(), ellipsis‿malloc, and ellipsis‿str8::length.

Referenced by ellipsis‿base64‿encode‿_Ctra().

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ellipsis‿base64‿encode‿_Insta()

char * ellipsis‿base64‿encode‿_Insta ( ellipsis‿str8 const  source[static restrict 1] )

inline

Encode binary data into a string that is base64 encoded.

The returned string is null-terminated and dynamically allocated with malloc.

start inner defer anchor at level 1

DEFER_TYPE needs a semicolon

end inner defer anchor, level 1

References ellipsis‿base64‿encode‿_Ctra(), and ellipsis‿base64‿encode‿_Insta().

Referenced by ellipsis‿base64‿encode‿_Insta(), and ellipsis‿base64‿encode().

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ellipsis‿base64‿encode_1()

static uint32_t ellipsis‿base64‿encode_1 ( uint32_t  c0 )

static

References ellipsis‿base64‿encode_up().

Referenced by ellipsis‿base64‿encode‿_Inner().

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ellipsis‿base64‿encode_2()

static uint32_t ellipsis‿base64‿encode_2 ( uint32_t  c0, uint32_t  c1  )

static

References ellipsis‿base64‿encode_up().

Referenced by ellipsis‿base64‿encode‿_Inner().

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ellipsis‿base64‿encode_3()

static uint32_t ellipsis‿base64‿encode_3 ( uint32_t  c0, uint32_t  c1, uint32_t  c2  )

static

References ellipsis‿base64‿encode_up().

Referenced by ellipsis‿base64‿encode‿_Inner().

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ellipsis‿base64‿encode_up()

static uint32_t ellipsis‿base64‿encode_up ( uint32_t  inp )

static

References ellipsis‿base64‿enc.

Referenced by ellipsis‿base64‿encode_1(), ellipsis‿base64‿encode_2(), and ellipsis‿base64‿encode_3().

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ellipsis‿base64‿print_1()

static void ellipsis‿base64‿print_1 ( char  tar[4], uint32_t  enc  )

static

References ellipsis‿base64‿esign.

Referenced by ellipsis‿base64‿encode‿_Inner().

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ellipsis‿base64‿print_2()

static void ellipsis‿base64‿print_2 ( char  tar[4], uint32_t  enc  )

static

References ellipsis‿base64‿esign.

Referenced by ellipsis‿base64‿encode‿_Inner().

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ellipsis‿base64‿print_3()

static void ellipsis‿base64‿print_3 ( char  tar[4], uint32_t  enc  )

static

Referenced by ellipsis‿base64‿encode‿_Inner().

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ellipsis‿base64‿print_4()

static void ellipsis‿base64‿print_4 ( uint8_t  tar[static 3], uint32_t  enc  )

static

Referenced by ellipsis‿base64‿decode‿_Inner().

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Variable Documentation

ellipsis‿base64‿dec

constexpr unsigned char ellipsis‿base64‿dec[256]

constexpr

Referenced by ellipsis‿base64‿decode_down().

ellipsis‿base64‿enc

constexpr char32_t ellipsis‿base64‿enc[] = U"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"

constexpr

Referenced by ellipsis‿base64‿encode_up().

ellipsis‿base64‿esign

constexpr uint32_t ellipsis‿base64‿esign = '='

constexpr

Referenced by ellipsis‿base64‿print_1(), and ellipsis‿base64‿print_2().

ellipsis‿contracts‿ignore‿dynamic

thread_local bool volatile ellipsis‿contracts‿ignore‿dynamic

extern

ellipsis‿contracts‿proceed‿dynamic

thread_local bool volatile ellipsis‿contracts‿proceed‿dynamic

extern

ellipsis‿contracts‿verbose‿dynamic

thread_local bool volatile ellipsis‿contracts‿verbose‿dynamic

extern