diff options
Diffstat (limited to 'lib/erl_interface')
25 files changed, 506 insertions, 106 deletions
diff --git a/lib/erl_interface/doc/src/ei.xml b/lib/erl_interface/doc/src/ei.xml index d0d472c42b..254ae27cc8 100644 --- a/lib/erl_interface/doc/src/ei.xml +++ b/lib/erl_interface/doc/src/ei.xml @@ -183,6 +183,35 @@ typedef enum { </func> <func> + <name since="OTP @OTP-15712@"><ret>int</ret><nametext>ei_decode_bitstring(const char *buf, int *index, void *p, size_t plen, size_t *bitsp)</nametext></name> + <fsummary>Decode a bitstring.</fsummary> + <desc> + <p>Decodes a bitstring from the binary format.</p> + <taglist> + <tag><c>p</c></tag> + <item><p>Either <c>NULL</c> or points to a buffer where the bytes of the + bitstring will be written.</p> + </item> + <tag><c>plen</c></tag> + <item><p>The max size of the bitstring in <em>bytes</em>, that is the + size of the buffer if <c>p != NULL</c>.</p> + </item> + <tag><c>*bitsp</c></tag> + <item><p>If <c>bitsp</c> is not <c>NULL</c>, set to the actual + number of <em>bits</em> of the bitstring.</p> + </item> + </taglist> + <p>Returns <c>0</c> if it was a bitstring no longer than <c>plen</c> + bytes. The actual length of the bitstring will be + <c>(*bitsp+7)/8</c> bytes. If <c>(*bitsp % 8) > 0</c> only the high + <c>(*bitsp % 8)</c> bits of the last byte are significant.</p> + <p>Number of bits may be divisible by 8, which means a binary + decodable by <c>ei_decode_binary</c> is also decodable by + <c>ei_decode_bitstring</c>.</p> + </desc> + </func> + + <func> <name since=""><ret>int</ret><nametext>ei_decode_boolean(const char *buf, int *index, int *p)</nametext></name> <fsummary>Decode a boolean.</fsummary> <desc> @@ -461,6 +490,18 @@ typedef enum { </func> <func> + <name since="OTP @OTP-15712@"><ret>int</ret><nametext>ei_encode_bitstring(char *buf, int *index, const void *p, size_t bits)</nametext></name> + <name since="OTP @OTP-15712@"><ret>int</ret><nametext>ei_x_encode_bitstring(ei_x_buff* x, const void *p, size_t bits)</nametext></name> + <fsummary>Encode a bitstring.</fsummary> + <desc> + <p>Encodes a bitstring in the binary format. The data is at + <c>p</c>. The size of the data is <c>bits</c> bits or + <c>(bits+7)/8</c> bytes. If <c>(bits%8) > 0</c> only the high + <c>(bits%8)</c> bits of the last byte are significant.</p> + </desc> + </func> + + <func> <name since=""><ret>int</ret><nametext>ei_encode_boolean(char *buf, int *index, int p)</nametext></name> <name since=""><ret>int</ret><nametext>ei_x_encode_boolean(ei_x_buff* x, int p)</nametext></name> <fsummary>Encode a boolean.</fsummary> diff --git a/lib/erl_interface/include/ei.h b/lib/erl_interface/include/ei.h index 056acf9749..591367dc95 100644 --- a/lib/erl_interface/include/ei.h +++ b/lib/erl_interface/include/ei.h @@ -154,11 +154,14 @@ typedef LONG_PTR ssize_t; /* Sigh... */ #define ERL_STRING_EXT 'k' #define ERL_LIST_EXT 'l' #define ERL_BINARY_EXT 'm' +#define ERL_BIT_BINARY_EXT 'M' #define ERL_SMALL_BIG_EXT 'n' #define ERL_LARGE_BIG_EXT 'o' #define ERL_NEW_FUN_EXT 'p' #define ERL_MAP_EXT 't' #define ERL_FUN_EXT 'u' +#define ERL_EXPORT_EXT 'q' + #define ERL_NEW_CACHE 'N' /* c nodes don't know these two */ #define ERL_CACHED_ATOM 'C' @@ -269,15 +272,23 @@ typedef struct { typedef struct { long arity; char module[MAXATOMLEN_UTF8]; - erlang_char_encoding module_org_enc; - char md5[16]; - long index; - long old_index; - long uniq; - long n_free_vars; - erlang_pid pid; - long free_var_len; - char* free_vars; + enum { EI_FUN_CLOSURE, EI_FUN_EXPORT } type; + union { + struct { + char md5[16]; + long index; + long old_index; + long uniq; + long n_free_vars; + erlang_pid pid; + long free_var_len; + char* free_vars; + } closure; + struct { + char* func; + int func_allocated; + } export; + } u; } erlang_fun; /* a big */ @@ -515,7 +526,9 @@ int ei_x_encode_atom_len(ei_x_buff* x, const char* s, int len); int ei_x_encode_atom_len_as(ei_x_buff* x, const char* s, int len, erlang_char_encoding from, erlang_char_encoding to); int ei_encode_binary(char *buf, int *index, const void *p, long len); +int ei_encode_bitstring(char *buf, int *index, const void *p, size_t bits); int ei_x_encode_binary(ei_x_buff* x, const void* s, int len); +int ei_x_encode_bitstring(ei_x_buff* x, const void* p, size_t bits); int ei_encode_pid(char *buf, int *index, const erlang_pid *p); int ei_x_encode_pid(ei_x_buff* x, const erlang_pid* pid); int ei_encode_fun(char* buf, int* index, const erlang_fun* p); @@ -565,6 +578,7 @@ int ei_decode_string(const char *buf, int *index, char *p); int ei_decode_atom(const char *buf, int *index, char *p); int ei_decode_atom_as(const char *buf, int *index, char *p, int destlen, erlang_char_encoding want, erlang_char_encoding* was, erlang_char_encoding* result); int ei_decode_binary(const char *buf, int *index, void *p, long *len); +int ei_decode_bitstring(const char *buf, int *index, void *p, size_t plen, size_t *bitsp); int ei_decode_fun(const char* buf, int* index, erlang_fun* p); void free_fun(erlang_fun* f); int ei_decode_pid(const char *buf, int *index, erlang_pid *p); diff --git a/lib/erl_interface/src/connect/ei_connect.c b/lib/erl_interface/src/connect/ei_connect.c index e75c4aadb5..0cbad235cc 100644 --- a/lib/erl_interface/src/connect/ei_connect.c +++ b/lib/erl_interface/src/connect/ei_connect.c @@ -1846,6 +1846,7 @@ static int send_name_or_challenge(ei_socket_callbacks *cbs, const char* function[] = {"SEND_NAME", "SEND_CHALLENGE"}; int err; ssize_t len; + unsigned int flags; if (f_chall) siz += 4; @@ -1867,7 +1868,7 @@ static int send_name_or_challenge(ei_socket_callbacks *cbs, } put8(s, 'n'); put16be(s, version); - put32be(s, (DFLAG_EXTENDED_REFERENCES + flags = (DFLAG_EXTENDED_REFERENCES | DFLAG_DIST_MONITOR | DFLAG_EXTENDED_PIDS_PORTS | DFLAG_FUN_TAGS @@ -1876,7 +1877,14 @@ static int send_name_or_challenge(ei_socket_callbacks *cbs, | DFLAG_SMALL_ATOM_TAGS | DFLAG_UTF8_ATOMS | DFLAG_MAP_TAG - | DFLAG_BIG_CREATION)); + | DFLAG_BIG_CREATION + | DFLAG_EXPORT_PTR_TAG + | DFLAG_BIT_BINARIES); + if (ei_internal_use_21_bitstr_expfun()) { + flags &= ~(DFLAG_EXPORT_PTR_TAG + | DFLAG_BIT_BINARIES); + } + put32be(s, flags); if (f_chall) put32be(s, challenge); memcpy(s, nodename, strlen(nodename)); diff --git a/lib/erl_interface/src/connect/ei_connect_int.h b/lib/erl_interface/src/connect/ei_connect_int.h index 0bcccaa84b..b41a5f2b23 100644 --- a/lib/erl_interface/src/connect/ei_connect_int.h +++ b/lib/erl_interface/src/connect/ei_connect_int.h @@ -102,6 +102,8 @@ extern int h_errno; #define DFLAG_FUN_TAGS 16 #define DFLAG_NEW_FUN_TAGS 0x80 #define DFLAG_EXTENDED_PIDS_PORTS 0x100 +#define DFLAG_EXPORT_PTR_TAG 0x200 +#define DFLAG_BIT_BINARIES 0x400 #define DFLAG_NEW_FLOATS 0x800 #define DFLAG_SMALL_ATOM_TAGS 0x4000 #define DFLAG_UTF8_ATOMS 0x10000 diff --git a/lib/erl_interface/src/decode/decode_binary.c b/lib/erl_interface/src/decode/decode_binary.c index 5b8d234984..2799438bef 100644 --- a/lib/erl_interface/src/decode/decode_binary.c +++ b/lib/erl_interface/src/decode/decode_binary.c @@ -40,4 +40,40 @@ int ei_decode_binary(const char *buf, int *index, void *p, long *lenp) return 0; } +int ei_decode_bitstring(const char *buf, int *index, void *p, size_t plen, + size_t *bitsp) +{ + const char *s = buf + *index; + const char *s0 = s; + unsigned long len; + unsigned char last_bits; + const unsigned char tag = get8(s); + + if (tag == ERL_BINARY_EXT) { + long bytes; + int ret = ei_decode_binary(buf, index, p, &bytes); + if (bitsp) + *bitsp = (size_t)bytes * 8; + return ret; + } + + if (tag != ERL_BIT_BINARY_EXT) + return -1; + + len = get32be(s); + last_bits = get8(s); + + if (len > plen || ((last_bits==0) != (len==0)) || last_bits > 8) + return -1; + + if (p) + memcpy(p, s, len); + s += len; + + if (bitsp) + *bitsp = (len == 0) ? 0 : ((len-1) * 8) + last_bits; + + *index += s-s0; + return 0; +} diff --git a/lib/erl_interface/src/decode/decode_fun.c b/lib/erl_interface/src/decode/decode_fun.c index f944c028af..32a950433e 100644 --- a/lib/erl_interface/src/decode/decode_fun.c +++ b/lib/erl_interface/src/decode/decode_fun.c @@ -33,22 +33,20 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) int i, ix, ix0, n; erlang_pid* p_pid; char* p_module; - erlang_char_encoding* p_module_org_enc; long* p_index; long* p_uniq; long* p_old_index; if (p != NULL) { - p_pid = &p->pid; + p_pid = &p->u.closure.pid; p_module = &p->module[0]; - p_module_org_enc = &p->module_org_enc; - p_index = &p->index; - p_uniq = &p->uniq; - p_old_index = &p->old_index; + p_index = &p->u.closure.index; + p_uniq = &p->u.closure.uniq; + p_old_index = &p->u.closure.old_index; } else { - p_pid = NULL; p_module = NULL; p_module_org_enc = NULL; p_index = NULL; p_uniq = NULL; p_old_index = NULL; + p_pid = NULL; p_module = NULL; } switch (get8(s)) { @@ -63,7 +61,7 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) return -1; /* then the module (atom) */ if (ei_decode_atom_as(s, &ix, p_module, MAXATOMLEN_UTF8, ERLANG_UTF8, - p_module_org_enc, NULL) < 0) + NULL, NULL) < 0) return -1; /* then the index */ if (ei_decode_long(s, &ix, p_index) < 0) @@ -78,11 +76,11 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) return -1; } if (p != NULL) { - p->n_free_vars = n; - p->free_var_len = ix - ix0; - p->free_vars = ei_malloc(ix - ix0); - if (!(p->free_vars)) return -1; - memcpy(p->free_vars, s + ix0, ix - ix0); + p->u.closure.n_free_vars = n; + p->u.closure.free_var_len = ix - ix0; + p->u.closure.free_vars = ei_malloc(ix - ix0); + if (!(p->u.closure.free_vars)) return -1; + memcpy(p->u.closure.free_vars, s + ix0, ix - ix0); } s += ix; *index += s-s0; @@ -93,20 +91,23 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) n = get32be(s); /* then the arity */ i = get8(s); - if (p != NULL) p->arity = i; - /* then md5 */ - if (p != NULL) memcpy(p->md5, s, 16); + if (p != NULL) { + p->type = EI_FUN_CLOSURE; + p->arity = i; + /* then md5 */ + memcpy(p->u.closure.md5, s, 16); + } s += 16; /* then index */ i = get32be(s); - if (p != NULL) p->index = i; + if (p != NULL) p->u.closure.index = i; /* then the number of free vars (environment) */ i = get32be(s); - if (p != NULL) p->n_free_vars = i; + if (p != NULL) p->u.closure.n_free_vars = i; /* then the module (atom) */ ix = 0; if (ei_decode_atom_as(s, &ix, p_module, MAXATOMLEN_UTF8, ERLANG_UTF8, - p_module_org_enc, NULL) < 0) + NULL, NULL) < 0) return -1; /* then the old_index */ if (ei_decode_long(s, &ix, p_old_index) < 0) @@ -122,17 +123,56 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) n = n - (s - s0) + 1; if (n < 0) return -1; if (p != NULL) { - p->free_var_len = n; + p->u.closure.free_var_len = n; if (n > 0) { - p->free_vars = malloc(n); - if (!(p->free_vars)) return -1; - memcpy(p->free_vars, s, n); + p->u.closure.free_vars = malloc(n); + if (!(p->u.closure.free_vars)) return -1; + memcpy(p->u.closure.free_vars, s, n); } } s += n; *index += s-s0; return 0; break; + case ERL_EXPORT_EXT: { + char* p_func; + long* p_arity; + int used; + + if (p) { + p->type = EI_FUN_EXPORT; + p_arity = &p->arity; + } + else { + p_arity = NULL; + } + if (ei_decode_atom_as(s, &ix, p_module, MAXATOMLEN_UTF8, ERLANG_UTF8, + NULL, NULL) < 0) + return -1; + if (p) { + /* try use module buffer for function name */ + used = strlen(p->module) + 1; + p_func = p->module + used; + p->u.export.func = p_func; + p->u.export.func_allocated = 0; + } + else { + used = 0; + p_func = NULL; + } + while (ei_decode_atom_as(s, &ix, p_func, MAXATOMLEN_UTF8-used, + ERLANG_UTF8, NULL, NULL) < 0) { + if (!used) + return -1; + p_func = malloc(MAXATOMLEN_UTF8); + p->u.export.func = p_func; + p->u.export.func_allocated = 1; + used = 0; + } + if (ei_decode_long(s, &ix, p_arity) < 0) + return -1; + return 0; + } default: return -1; } @@ -140,6 +180,14 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) void free_fun(erlang_fun* f) { - if (f->free_var_len > 0) - ei_free(f->free_vars); + switch (f->type) { + case EI_FUN_CLOSURE: + if (f->u.closure.free_var_len > 0) + ei_free(f->u.closure.free_vars); + break; + case EI_FUN_EXPORT: + if (f->u.export.func_allocated) + ei_free(f->u.export.func); + break; + } } diff --git a/lib/erl_interface/src/decode/decode_skip.c b/lib/erl_interface/src/decode/decode_skip.c index a9f6242e35..11d3bc1786 100644 --- a/lib/erl_interface/src/decode/decode_skip.c +++ b/lib/erl_interface/src/decode/decode_skip.c @@ -21,6 +21,14 @@ #include "eiext.h" #include "decode_skip.h" +#ifdef HAVE_STDINT_H +# include <stdint.h> +#endif + +#ifndef SIZE_MAX +# define SIZE_MAX (~((size_t)0)) +#endif + int ei_skip_term(const char* buf, int* index) { int i, n, ty; @@ -79,6 +87,10 @@ int ei_skip_term(const char* buf, int* index) if (ei_decode_binary(buf, index, NULL, NULL) < 0) return -1; break; + case ERL_BIT_BINARY_EXT: + if (ei_decode_bitstring(buf, index, NULL, SIZE_MAX, NULL) < 0) + return -1; + break; case ERL_SMALL_INTEGER_EXT: case ERL_INTEGER_EXT: if (ei_decode_long(buf, index, NULL) < 0) return -1; diff --git a/lib/erl_interface/src/encode/encode_binary.c b/lib/erl_interface/src/encode/encode_binary.c index 4471c51769..4aa9f6bc16 100644 --- a/lib/erl_interface/src/encode/encode_binary.c +++ b/lib/erl_interface/src/encode/encode_binary.c @@ -40,3 +40,27 @@ int ei_encode_binary(char *buf, int *index, const void *p, long len) return 0; } +int ei_encode_bitstring(char *buf, int *index, const void *p, size_t bits) +{ + char *s = buf + *index; + char *s0 = s; + size_t bytes = (bits + 7) / 8; + char last_bits = bits % 8; + + if (bytes == 0 || last_bits == 0) + return ei_encode_binary(buf, index, p, bytes); + + if (!buf) s += 6; + else { + put8(s, ERL_BIT_BINARY_EXT); + put32be(s, bytes); + put8(s, last_bits); + memcpy(s, p, bytes); + s[bytes-1] &= (0xff << (8-last_bits)); + } + s += bytes; + + *index += s-s0; + + return 0; +} diff --git a/lib/erl_interface/src/encode/encode_fun.c b/lib/erl_interface/src/encode/encode_fun.c index 3bfc7530d1..38ba7c5b30 100644 --- a/lib/erl_interface/src/encode/encode_fun.c +++ b/lib/erl_interface/src/encode/encode_fun.c @@ -26,56 +26,72 @@ int ei_encode_fun(char *buf, int *index, const erlang_fun *p) { int ix = *index; - if (p->arity == -1) { - /* ERL_FUN_EXT */ - if (buf != NULL) { - char* s = buf + ix; - put8(s, ERL_FUN_EXT); - put32be(s, p->n_free_vars); - } - ix += sizeof(char) + 4; - if (ei_encode_pid(buf, &ix, &p->pid) < 0) - return -1; - if (ei_encode_atom_as(buf, &ix, p->module, ERLANG_UTF8, p->module_org_enc) < 0) - return -1; - if (ei_encode_long(buf, &ix, p->index) < 0) - return -1; - if (ei_encode_long(buf, &ix, p->uniq) < 0) - return -1; - if (buf != NULL) - memcpy(buf + ix, p->free_vars, p->free_var_len); - ix += p->free_var_len; - } else { - char *size_p; - /* ERL_NEW_FUN_EXT */ - if (buf != NULL) { - char* s = buf + ix; - put8(s, ERL_NEW_FUN_EXT); - size_p = s; - s += 4; - put8(s, p->arity); - memcpy(s, p->md5, sizeof(p->md5)); - s += sizeof(p->md5); - put32be(s, p->index); - put32be(s, p->n_free_vars); - } else - size_p = NULL; - ix += 1 + 4 + 1 + sizeof(p->md5) + 4 + 4; - if (ei_encode_atom_as(buf, &ix, p->module, ERLANG_UTF8, p->module_org_enc) < 0) - return -1; - if (ei_encode_long(buf, &ix, p->old_index) < 0) - return -1; - if (ei_encode_long(buf, &ix, p->uniq) < 0) - return -1; - if (ei_encode_pid(buf, &ix, &p->pid) < 0) - return -1; - if (buf != NULL) - memcpy(buf + ix, p->free_vars, p->free_var_len); - ix += p->free_var_len; - if (size_p != NULL) { - int sz = buf + ix - size_p; - put32be(size_p, sz); + switch (p->type) { + case EI_FUN_CLOSURE: + if (p->arity == -1) { + /* ERL_FUN_EXT */ + if (buf != NULL) { + char* s = buf + ix; + put8(s, ERL_FUN_EXT); + put32be(s, p->u.closure.n_free_vars); + } + ix += sizeof(char) + 4; + if (ei_encode_pid(buf, &ix, &p->u.closure.pid) < 0) + return -1; + if (ei_encode_atom_as(buf, &ix, p->module, ERLANG_UTF8, ERLANG_UTF8) < 0) + return -1; + if (ei_encode_long(buf, &ix, p->u.closure.index) < 0) + return -1; + if (ei_encode_long(buf, &ix, p->u.closure.uniq) < 0) + return -1; + if (buf != NULL) + memcpy(buf + ix, p->u.closure.free_vars, p->u.closure.free_var_len); + ix += p->u.closure.free_var_len; + } else { + char *size_p; + if (buf != NULL) { + char* s = buf + ix; + put8(s, ERL_NEW_FUN_EXT); + size_p = s; + s += 4; + put8(s, p->arity); + memcpy(s, p->u.closure.md5, sizeof(p->u.closure.md5)); + s += sizeof(p->u.closure.md5); + put32be(s, p->u.closure.index); + put32be(s, p->u.closure.n_free_vars); + } else + size_p = NULL; + ix += 1 + 4 + 1 + sizeof(p->u.closure.md5) + 4 + 4; + if (ei_encode_atom_as(buf, &ix, p->module, ERLANG_UTF8, ERLANG_UTF8) < 0) + return -1; + if (ei_encode_long(buf, &ix, p->u.closure.old_index) < 0) + return -1; + if (ei_encode_long(buf, &ix, p->u.closure.uniq) < 0) + return -1; + if (ei_encode_pid(buf, &ix, &p->u.closure.pid) < 0) + return -1; + if (buf != NULL) + memcpy(buf + ix, p->u.closure.free_vars, p->u.closure.free_var_len); + ix += p->u.closure.free_var_len; + if (size_p != NULL) { + int sz = buf + ix - size_p; + put32be(size_p, sz); + } } + break; + case EI_FUN_EXPORT: + if (buf != NULL) { + char* s = buf + ix; + put8(s, ERL_EXPORT_EXT); + } + ix++; + if (ei_encode_atom_as(buf, &ix, p->module, ERLANG_UTF8, ERLANG_UTF8) < 0) + return -1; + if (ei_encode_atom_as(buf, &ix, p->u.export.func, ERLANG_UTF8, ERLANG_UTF8) < 0) + return -1; + if (ei_encode_long(buf, &ix, p->arity) < 0) + return -1; + break; } *index = ix; return 0; diff --git a/lib/erl_interface/src/misc/ei_compat.c b/lib/erl_interface/src/misc/ei_compat.c index ff94e144ee..787895992e 100644 --- a/lib/erl_interface/src/misc/ei_compat.c +++ b/lib/erl_interface/src/misc/ei_compat.c @@ -22,14 +22,22 @@ #include "ei.h" #include "ei_internal.h" -#define EI_COMPAT_NO_REL (~((unsigned) 0)) +#include <limits.h> -static unsigned compat_rel = EI_COMPAT_NO_REL; +#ifndef EI_COMPAT +# define EI_COMPAT UINT_MAX +#endif + +static unsigned compat_rel = EI_COMPAT; void ei_set_compat_rel(unsigned rel) { - if (compat_rel == EI_COMPAT_NO_REL) - compat_rel = rel; + compat_rel = rel; +} + +int ei_internal_use_21_bitstr_expfun(void) +{ + return compat_rel < 22; } diff --git a/lib/erl_interface/src/misc/ei_decode_term.c b/lib/erl_interface/src/misc/ei_decode_term.c index 63a7034508..8a4f7cc30d 100644 --- a/lib/erl_interface/src/misc/ei_decode_term.c +++ b/lib/erl_interface/src/misc/ei_decode_term.c @@ -87,6 +87,14 @@ int ei_decode_ei_term(const char* buf, int* index, ei_term* term) case ERL_BINARY_EXT: term->size = get32be(s); return 0; + case ERL_BIT_BINARY_EXT: { + int bytes = get32be(s); + int last_bits = get8(s); + if (((last_bits==0) != (bytes==0)) || last_bits > 8) + return -1; + term->size = bytes; + return 0; + } case ERL_SMALL_BIG_EXT: if ((term->arity = get8(s)) != 4) return -1; sign = get8(s); diff --git a/lib/erl_interface/src/misc/ei_internal.h b/lib/erl_interface/src/misc/ei_internal.h index 17abe6cf90..ab12597c86 100644 --- a/lib/erl_interface/src/misc/ei_internal.h +++ b/lib/erl_interface/src/misc/ei_internal.h @@ -157,6 +157,8 @@ int ei_init_connect(void); void ei_trace_printf(const char *name, int level, const char *format, ...); +int ei_internal_use_21_bitstr_expfun(void); + int ei_get_cbs_ctx__(ei_socket_callbacks **cbs, void **ctx, int fd); #endif /* _EI_INTERNAL_H */ diff --git a/lib/erl_interface/src/misc/ei_printterm.c b/lib/erl_interface/src/misc/ei_printterm.c index e83f29b0c1..a89b990ac1 100644 --- a/lib/erl_interface/src/misc/ei_printterm.c +++ b/lib/erl_interface/src/misc/ei_printterm.c @@ -249,6 +249,34 @@ static int print_term(FILE* fp, ei_x_buff* x, xputc('>', fp, x); ++ch_written; ei_free(p); break; + case ERL_BIT_BINARY_EXT: { + size_t bits; + int trunc = 0; + p = ei_malloc(n); + if (p == NULL) goto err; + if (ei_decode_bitstring(buf, index, p, n, &bits) < 0) { + ei_free(p); + goto err; + } + ch_written += xprintf(fp, x, "#Bits<"); + m = (bits+7) / 8; + if (m > BINPRINTSIZE) { + m = BINPRINTSIZE; + trunc = 1; + } + --m; + for (i = 0; i < m; ++i) { + ch_written += xprintf(fp, x, "%d,", p[i]); + } + ch_written += xprintf(fp, x, "%d", p[i]); + if (trunc) + ch_written += xprintf(fp, x, ",..."); + else if (bits % 8 != 0) + ch_written += xprintf(fp, x, ":%u", (unsigned)(bits % 8)); + xputc('>', fp, x); ++ch_written; + ei_free(p); + break; + } case ERL_SMALL_INTEGER_EXT: case ERL_INTEGER_EXT: if (ei_decode_long(buf, index, &l) < 0) goto err; diff --git a/lib/erl_interface/src/misc/ei_x_encode.c b/lib/erl_interface/src/misc/ei_x_encode.c index 4ff5974663..2da271795f 100644 --- a/lib/erl_interface/src/misc/ei_x_encode.c +++ b/lib/erl_interface/src/misc/ei_x_encode.c @@ -117,6 +117,16 @@ int ei_x_encode_binary(ei_x_buff* x, const void* p, int len) return ei_encode_binary(x->buff, &x->index, p, len); } +int ei_x_encode_bitstring(ei_x_buff* x, const void* p, size_t bits) +{ + int i = x->index; + if (ei_encode_bitstring(NULL, &i, p, bits) == -1) + return -1; + if (!x_fix_buff(x, i)) + return -1; + return ei_encode_bitstring(x->buff, &x->index, p, bits); +} + int ei_x_encode_long(ei_x_buff* x, long n) { int i = x->index; diff --git a/lib/erl_interface/src/misc/get_type.c b/lib/erl_interface/src/misc/get_type.c index aa8ea1176b..eef58a9363 100644 --- a/lib/erl_interface/src/misc/get_type.c +++ b/lib/erl_interface/src/misc/get_type.c @@ -57,6 +57,7 @@ int ei_get_type(const char *buf, const int *index, int *type, int *len) case ERL_LIST_EXT: case ERL_MAP_EXT: case ERL_BINARY_EXT: + case ERL_BIT_BINARY_EXT: *len = get32be(s); break; diff --git a/lib/erl_interface/src/misc/show_msg.c b/lib/erl_interface/src/misc/show_msg.c index ad003605ad..2d49eb6449 100644 --- a/lib/erl_interface/src/misc/show_msg.c +++ b/lib/erl_interface/src/misc/show_msg.c @@ -24,6 +24,13 @@ #include <stdlib.h> #include <stdarg.h> #include <string.h> +#ifdef HAVE_STDINT_H +# include <stdint.h> +#endif + +#ifndef SIZE_MAX +# define SIZE_MAX (~((size_t)0)) +#endif #include <sys/types.h> @@ -455,6 +462,12 @@ static void show_term(const char *termbuf, int *index, FILE *stream) fprintf(stream,"#Bin<%ld>",num); break; + case ERL_BIT_BINARY_EXT: { + size_t bits; + ei_decode_bitstring(termbuf, index, NULL, SIZE_MAX, &bits); + fprintf(stream, "#Bits<%lu>", (unsigned long)bits); + break; + } case ERL_LARGE_BIG_EXT: /* doesn't actually decode - just skip over it */ /* FIXME if GMP, what to do here?? */ diff --git a/lib/erl_interface/test/all_SUITE_data/ei_runner.h b/lib/erl_interface/test/all_SUITE_data/ei_runner.h index 2608661303..7c874ac82e 100644 --- a/lib/erl_interface/test/all_SUITE_data/ei_runner.h +++ b/lib/erl_interface/test/all_SUITE_data/ei_runner.h @@ -53,6 +53,7 @@ void free_packet(char*); #define fail(reason) do_fail(__FILE__, __LINE__, reason) #define fail1(reason, a1) do_fail(__FILE__, __LINE__, reason, a1) +#define fail2(reason, a1, a2) do_fail(__FILE__, __LINE__, reason, a1, a2) #define report(ok) do_report(__FILE__, __LINE__, ok) void do_report(char* file, int line, int ok); diff --git a/lib/erl_interface/test/ei_accept_SUITE.erl b/lib/erl_interface/test/ei_accept_SUITE.erl index 9c9c3f86b6..f40c67375b 100644 --- a/lib/erl_interface/test/ei_accept_SUITE.erl +++ b/lib/erl_interface/test/ei_accept_SUITE.erl @@ -43,8 +43,12 @@ init_per_testcase(Case, Config) -> runner:init_per_testcase(?MODULE, Case, Config). ei_accept(Config) when is_list(Config) -> + ei_accept_do(Config, 0), % default + ei_accept_do(Config, 21). % ei_set_compat_rel + +ei_accept_do(Config, CompatRel) -> P = runner:start(Config, ?interpret), - 0 = ei_connect_init(P, 42, erlang:get_cookie(), 0), + 0 = ei_connect_init(P, 42, erlang:get_cookie(), 0, CompatRel), Myname = hd(tl(string:tokens(atom_to_list(node()), "@"))), io:format("Myname ~p ~n", [Myname]), @@ -52,15 +56,18 @@ ei_accept(Config) when is_list(Config) -> io:format("EINode ~p ~n", [EINode]), %% We take this opportunity to also test export-funs and bit-strings - %% with (ugly) tuple fallbacks. + %% with (ugly) tuple fallbacks in OTP 21 and older. %% Test both toward pending connection and established connection. RealTerms = [<<1:1>>, fun lists:map/2], - Fallbacks = [{<<128>>,1}, {lists,map}], + EncTerms = case CompatRel of + 0 -> RealTerms; + 21 -> [{<<128>>,1}, {lists,map}] + end, Self = self(), Funny = fun() -> hello end, TermToSend = {call, Self, "Test", Funny, RealTerms}, - TermToGet = {call, Self, "Test", Funny, Fallbacks}, + TermToGet = {call, Self, "Test", Funny, EncTerms}, Port = 6543, {ok, ListenFd} = ei_publish(P, Port), {any, EINode} ! TermToSend, @@ -94,7 +101,7 @@ ei_threaded_accept(Config) when is_list(Config) -> %% Test erlang:monitor toward erl_interface "processes" monitor_ei_process(Config) when is_list(Config) -> P = runner:start(Config, ?interpret), - 0 = ei_connect_init(P, 42, erlang:get_cookie(), 0), + 0 = ei_connect_init(P, 42, erlang:get_cookie(), 0, 0), Myname = hd(tl(string:tokens(atom_to_list(node()), "@"))), io:format("Myname ~p ~n", [Myname]), @@ -167,8 +174,8 @@ start_einode(Einode, N, Host) -> %%% Interface functions for ei (erl_interface) functions. -ei_connect_init(P, Num, Cookie, Creation) -> - send_command(P, ei_connect_init, [Num,Cookie,Creation]), +ei_connect_init(P, Num, Cookie, Creation, Compat) -> + send_command(P, ei_connect_init, [Num,Cookie,Creation,Compat]), case get_term(P) of {term,Int} when is_integer(Int) -> Int end. diff --git a/lib/erl_interface/test/ei_accept_SUITE_data/ei_accept_test.c b/lib/erl_interface/test/ei_accept_SUITE_data/ei_accept_test.c index d85b2d38c7..09b0b5440b 100644 --- a/lib/erl_interface/test/ei_accept_SUITE_data/ei_accept_test.c +++ b/lib/erl_interface/test/ei_accept_SUITE_data/ei_accept_test.c @@ -58,7 +58,7 @@ static struct { int num_args; /* Number of arguments. */ void (*func)(char* buf, int len); } commands[] = { - "ei_connect_init", 3, cmd_ei_connect_init, + "ei_connect_init", 4, cmd_ei_connect_init, "ei_publish", 1, cmd_ei_publish, "ei_accept", 1, cmd_ei_accept, "ei_receive", 1, cmd_ei_receive, @@ -106,18 +106,25 @@ TESTCASE(interpret) static void cmd_ei_connect_init(char* buf, int len) { int index = 0, r = 0; - long l; - char b[100]; + long num, creation; + unsigned long compat; + char node_name[100]; char cookie[MAXATOMLEN], * cp = cookie; ei_x_buff res; - if (ei_decode_long(buf, &index, &l) < 0) + if (ei_decode_long(buf, &index, &num) < 0) fail("expected int"); - sprintf(b, "c%d", l); + sprintf(node_name, "c%d", num); if (ei_decode_atom(buf, &index, cookie) < 0) fail("expected atom (cookie)"); if (cookie[0] == '\0') cp = NULL; - r = ei_connect_init(&ec, b, cp, 0); + if (ei_decode_long(buf, &index, &creation) < 0) + fail("expected int"); + if (ei_decode_long(buf, &index, &compat) < 0) + fail("expected uint"); + if (compat) + ei_set_compat_rel(compat); + r = ei_connect_init(&ec, node_name, cp, creation); ei_x_new_with_version(&res); ei_x_encode_long(&res, r); send_bin_term(&res); diff --git a/lib/erl_interface/test/ei_connect_SUITE.erl b/lib/erl_interface/test/ei_connect_SUITE.erl index 75b6bf18da..6184ce801b 100644 --- a/lib/erl_interface/test/ei_connect_SUITE.erl +++ b/lib/erl_interface/test/ei_connect_SUITE.erl @@ -79,9 +79,10 @@ ei_send_funs(Config) when is_list(Config) -> {ok,Fd} = ei_connect(P, node()), Fun1 = fun ei_send/1, - Fun2 = fun(X) -> P, X, Fd, Fun1 end, + Fun2 = fun(X) -> {P, X, Fd, Fun1} end, + Bits = <<1,2,3:5>>, - AMsg={Fun1,Fun2}, + AMsg={Fun1,Fun2,Bits}, %%AMsg={wait_with_funs, new_dist_format}, ok = ei_send_funs(P, Fd, self(), AMsg), EIMsg = receive M -> M end, diff --git a/lib/erl_interface/test/ei_connect_SUITE_data/ei_connect_test.c b/lib/erl_interface/test/ei_connect_SUITE_data/ei_connect_test.c index b002871ffe..7c9e79f837 100644 --- a/lib/erl_interface/test/ei_connect_SUITE_data/ei_connect_test.c +++ b/lib/erl_interface/test/ei_connect_SUITE_data/ei_connect_test.c @@ -209,6 +209,8 @@ static void cmd_ei_send_funs(char* buf, int len) erlang_pid pid; ei_x_buff x; erlang_fun fun1, fun2; + unsigned char bitstring[10]; + size_t bits; if (ei_decode_long(buf, &index, &fd) < 0) fail("expected long"); @@ -216,20 +218,24 @@ static void cmd_ei_send_funs(char* buf, int len) fail("expected pid (node)"); if (ei_decode_tuple_header(buf, &index, &n) < 0) fail("expected tuple"); - if (n != 2) + if (n != 3) fail("expected tuple"); if (ei_decode_fun(buf, &index, &fun1) < 0) fail("expected Fun1"); if (ei_decode_fun(buf, &index, &fun2) < 0) fail("expected Fun2"); + if (ei_decode_bitstring(buf, &index, bitstring, sizeof(bitstring), &bits) < 0) + fail("expected bitstring"); if (ei_x_new_with_version(&x) < 0) fail("ei_x_new_with_version"); - if (ei_x_encode_tuple_header(&x, 2) < 0) + if (ei_x_encode_tuple_header(&x, 3) < 0) fail("encode tuple header"); if (ei_x_encode_fun(&x, &fun1) < 0) fail("encode fun1"); if (ei_x_encode_fun(&x, &fun2) < 0) fail("encode fun2"); + if (ei_x_encode_bitstring(&x, bitstring, bits) < 0) + fail("encode bitstring"); free_fun(&fun1); free_fun(&fun2); send_errno_result(ei_send(fd, &pid, x.buff, x.index)); diff --git a/lib/erl_interface/test/ei_decode_SUITE.erl b/lib/erl_interface/test/ei_decode_SUITE.erl index 75560ea7c9..e005ec89c7 100644 --- a/lib/erl_interface/test/ei_decode_SUITE.erl +++ b/lib/erl_interface/test/ei_decode_SUITE.erl @@ -194,6 +194,9 @@ test_ei_decode_misc(Config) when is_list(Config) -> send_term_as_binary(P,<<>>), send_term_as_binary(P,<<"ÅÄÖåäö">>), + send_term_as_binary(P,<<1, 2, 3:5>>), + send_term_as_binary(P,<<1:1>>), + % send_term_as_binary(P,{}), % send_term_as_binary(P,[]), diff --git a/lib/erl_interface/test/ei_decode_SUITE_data/ei_decode_test.c b/lib/erl_interface/test/ei_decode_SUITE_data/ei_decode_test.c index 66cdf2f502..d39970a857 100644 --- a/lib/erl_interface/test/ei_decode_SUITE_data/ei_decode_test.c +++ b/lib/erl_interface/test/ei_decode_SUITE_data/ei_decode_test.c @@ -317,6 +317,69 @@ static void decode_bin(int exp_size, const char* val, int exp_len) free_packet(buf); } +static void decode_bits(int exp_size, const char* val, size_t exp_bits) +{ + char p[1024]; + char *buf; + size_t bits; + int size1 = 0; + int size2 = 0; + int err; + message("ei_decode_bitstring should be %d bits", (int)exp_bits); + buf = read_packet(NULL); + err = ei_decode_bitstring(buf+1, &size1, NULL, sizeof(p), &bits); + message("err = %d, size = %d, len = %d, expected size = %d, expected bits = %d\n",\ + err,size1, (int)bits, exp_size, (int)exp_bits); + + if (err != 0) { + if (err != -1) { + fail("returned non zero but not -1 if NULL pointer"); + } else { + fail("returned non zero"); + } + return; + } + + if (bits != exp_bits) { + fail("number of bits is not correct"); + return; + } + + err = ei_decode_bitstring(buf+1, &size2, p, sizeof(p), &bits); + message("err = %d, size = %d, len = %d, expected size = %d, expected len = %d\n",\ + err,size2, (int)bits, exp_size, (int)exp_bits); + if (err != 0) { + if (err != -1) { + fail("returned non zero but not -1 if NULL pointer"); + } else { + fail("returned non zero"); + } + return; + } + + if (bits != exp_bits) { + fail("bits is not correct"); + return; + } + + if (memcmp(p, val, (exp_bits+7)/8) != 0) { + fail("value is not correct"); + return; + } + + if (size1 != size2) { + fail("size with and without pointer differs"); + return; + } + + if (size1 != exp_size) { + fail2("size of encoded data is incorrect %d != %d", size1, exp_size); + return; + } + free_packet(buf); +} + + /* ******************************************************************** */ TESTCASE(test_ei_decode_long) @@ -648,6 +711,14 @@ TESTCASE(test_ei_decode_misc) decode_bin(5, "", 0); decode_bin(11, "������", 6); +#define LAST_BYTE(V, BITS) ((V) << (8-(BITS))) + { + unsigned char bits1[] = {1, 2, LAST_BYTE(3,5) }; + unsigned char bits2[] = {LAST_BYTE(1,1) }; + decode_bits(9, bits1, 21); + decode_bits(7, bits2, 1); + } + /* FIXME check \0 in strings and atoms? */ /* EI_ENCODE_1(decode_tuple_header, 0); diff --git a/lib/erl_interface/test/ei_decode_encode_SUITE.erl b/lib/erl_interface/test/ei_decode_encode_SUITE.erl index 0f23cdfbb9..d8b0bce3ae 100644 --- a/lib/erl_interface/test/ei_decode_encode_SUITE.erl +++ b/lib/erl_interface/test/ei_decode_encode_SUITE.erl @@ -120,6 +120,8 @@ test_ei_decode_encode(Config) when is_list(Config) -> send_rec(P, #{key => value}), send_rec(P, maps:put(Port, Ref, #{key => value, key2 => Pid})), + [send_rec(P, <<16#dec0deb175:B/little>>) || B <- lists:seq(0,48)], + runner:recv_eot(P), ok. diff --git a/lib/erl_interface/test/ei_decode_encode_SUITE_data/ei_decode_encode_test.c b/lib/erl_interface/test/ei_decode_encode_SUITE_data/ei_decode_encode_test.c index 55d9ed1b1a..f9c05b2739 100644 --- a/lib/erl_interface/test/ei_decode_encode_SUITE_data/ei_decode_encode_test.c +++ b/lib/erl_interface/test/ei_decode_encode_SUITE_data/ei_decode_encode_test.c @@ -40,6 +40,12 @@ typedef struct erlang_char_encoding enc; }my_atom; +typedef struct +{ + char bytes[MAXATOMLEN_UTF8]; + size_t nbits; +}my_bitstring; + struct my_obj { union { erlang_fun fun; @@ -49,6 +55,7 @@ struct my_obj { erlang_trace trace; erlang_big big; my_atom atom; + my_bitstring bits; int arity; }u; @@ -119,6 +126,26 @@ struct Type my_atom_type = { (encodeFT*)ei_encode_my_atom, (x_encodeFT*)ei_x_encode_my_atom }; +int ei_decode_my_bits(const char *buf, int *index, my_bitstring* a) +{ + return ei_decode_bitstring(buf, index, (a ? a->bytes : NULL), + sizeof(a->bytes), + (a ? &a->nbits : NULL)); +} +int ei_encode_my_bits(char *buf, int *index, my_bitstring* a) +{ + return ei_encode_bitstring(buf, index, a->bytes, a->nbits); +} +int ei_x_encode_my_bits(ei_x_buff* x, my_bitstring* a) +{ + return ei_x_encode_bitstring(x, a->bytes, a->nbits); +} + +struct Type my_bitstring_type = { + "bits", "my_bitstring", (decodeFT*)ei_decode_my_bits, + (encodeFT*)ei_encode_my_bits, (x_encodeFT*)ei_x_encode_my_bits +}; + int my_decode_tuple_header(const char *buf, int *index, struct my_obj* obj) { @@ -537,6 +564,10 @@ TESTCASE(test_ei_decode_encode) decode_encode(map, 7); } + for (i=0; i <= 48; i++) { + decode_encode_one(&my_bitstring_type); + } + report(1); } |