diff options
Diffstat (limited to 'lib/mlibc/options/posix/generic/netdb-stubs.cpp')
| -rw-r--r-- | lib/mlibc/options/posix/generic/netdb-stubs.cpp | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/lib/mlibc/options/posix/generic/netdb-stubs.cpp b/lib/mlibc/options/posix/generic/netdb-stubs.cpp deleted file mode 100644 index 455444b..0000000 --- a/lib/mlibc/options/posix/generic/netdb-stubs.cpp +++ /dev/null @@ -1,486 +0,0 @@ -#include <netdb.h> -#include <bits/ensure.h> - -#include <mlibc/debug.hpp> -#include <mlibc/lookup.hpp> -#include <mlibc/allocator.hpp> -#include <mlibc/services.hpp> -#include <frg/vector.hpp> -#include <frg/array.hpp> -#include <frg/span.hpp> -#include <sys/socket.h> -#include <arpa/inet.h> -#include <stdlib.h> -#include <stdio.h> -#include <stddef.h> -#include <errno.h> - -__thread int __mlibc_h_errno; - -// This function is from musl -int *__h_errno_location(void) { - return &__mlibc_h_errno; -} - -void endhostent(void) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -void endnetent(void) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -void endprotoent(void) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -void endservent(void) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -void freeaddrinfo(struct addrinfo *ptr) { - if (ptr) { - auto buf = (struct mlibc::ai_buf*) ptr - offsetof(struct mlibc::ai_buf, ai); - // this string was allocated by a frg::string - getAllocator().free(ptr->ai_canonname); - free(buf); - } -} - -const char *gai_strerror(int code) { - static thread_local char buffer[128]; - snprintf(buffer, sizeof(buffer), "Unknown error (%d)", code); - return buffer; -} - -int getaddrinfo(const char *__restrict node, const char *__restrict service, - const struct addrinfo *__restrict hints, struct addrinfo **__restrict res) { - if (!node && !service) - return EAI_NONAME; - - int socktype = 0, protocol = 0, family = AF_UNSPEC, flags = AI_V4MAPPED | AI_ADDRCONFIG; - if (hints) { - socktype = hints->ai_socktype; - protocol = hints->ai_protocol; - family = hints->ai_family; - flags = hints->ai_flags; - - int mask = AI_V4MAPPED | AI_ADDRCONFIG | AI_NUMERICHOST | AI_PASSIVE | - AI_CANONNAME | AI_ALL | AI_NUMERICSERV; - if ((flags & mask) != flags) - return EAI_BADFLAGS; - - if (family != AF_INET && family != AF_INET6 && family != AF_UNSPEC) - return EAI_FAMILY; - } - - mlibc::service_result serv_buf{getAllocator()}; - int serv_count = mlibc::lookup_serv_by_name(serv_buf, service, protocol, socktype, flags); - if (serv_count < 0) - return -serv_count; - - struct mlibc::lookup_result addr_buf; - int addr_count = 1; - frg::string<MemoryAllocator> canon{getAllocator()}; - if (node) { - if ((addr_count = mlibc::lookup_name_ip(addr_buf, node, family)) <= 0) { - if (flags & AI_NUMERICHOST) - addr_count = -EAI_NONAME; - else if ((addr_count = mlibc::lookup_name_hosts(addr_buf, node, canon)) <= 0) - addr_count = mlibc::lookup_name_dns(addr_buf, node, canon); - else - addr_count = 1; - } - - if (addr_count < 0) - return -addr_count; - if (!addr_count) - return EAI_NONAME; - } else { - /* There is no node specified */ - if (flags & AI_NUMERICHOST) - return EAI_NONAME; - addr_count = lookup_name_null(addr_buf, flags, family); - } - - auto out = (struct mlibc::ai_buf *) calloc(serv_count * addr_count, - sizeof(struct mlibc::ai_buf)); - - if (node && !canon.size()) - canon = frg::string<MemoryAllocator>{node, getAllocator()}; - - for (int i = 0, k = 0; i < addr_count; i++) { - for (int j = 0; j < serv_count; j++, k++) { - out[i].ai.ai_family = addr_buf.buf[i].family; - out[i].ai.ai_socktype = serv_buf[j].socktype; - out[i].ai.ai_protocol = serv_buf[j].protocol; - out[i].ai.ai_flags = flags; - out[i].ai.ai_addr = (struct sockaddr *) &out[i].sa; - if (canon.size()) - out[i].ai.ai_canonname = canon.data(); - else - out[i].ai.ai_canonname = NULL; - out[i].ai.ai_next = NULL; - switch (addr_buf.buf[i].family) { - case AF_INET: - out[i].ai.ai_addrlen = sizeof(struct sockaddr_in); - out[i].sa.sin.sin_port = htons(serv_buf[j].port); - out[i].sa.sin.sin_family = AF_INET; - memcpy(&out[i].sa.sin.sin_addr, addr_buf.buf[i].addr, 4); - break; - case AF_INET6: - out[i].ai.ai_addrlen = sizeof(struct sockaddr_in6); - out[i].sa.sin6.sin6_family = htons(serv_buf[j].port); - out[i].sa.sin6.sin6_family = AF_INET6; - memcpy(&out[i].sa.sin6.sin6_addr, addr_buf.buf[i].addr, 16); - break; - } - } - } - if (canon.size()) - canon.detach(); - - *res = &out[0].ai; - return 0; -} - -struct hostent *gethostent(void) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -int getnameinfo(const struct sockaddr *__restrict addr, socklen_t addr_len, - char *__restrict host, socklen_t host_len, char *__restrict serv, - socklen_t serv_len, int flags) { - frg::array<uint8_t, 16> addr_array; - int family = addr->sa_family; - - switch(family) { - case AF_INET: { - if (addr_len < sizeof(struct sockaddr_in)) - return EAI_FAMILY; - auto sockaddr = reinterpret_cast<const struct sockaddr_in*>(addr); - memcpy(addr_array.data(), reinterpret_cast<const char*>(&sockaddr->sin_addr), 4); - break; - } - case AF_INET6: { - mlibc::infoLogger() << "getnameinfo(): ipv6 is not fully supported in this function" << frg::endlog; - if (addr_len < sizeof(struct sockaddr_in6)) - return EAI_FAMILY; - auto sockaddr = reinterpret_cast<const struct sockaddr_in6*>(addr); - memcpy(addr_array.data(), reinterpret_cast<const char*>(&sockaddr->sin6_addr), 16); - break; - } - default: - return EAI_FAMILY; - } - - if (host && host_len) { - frg::span<char> host_span{host, host_len}; - int res = 0; - if (!(flags & NI_NUMERICHOST)) - res = mlibc::lookup_addr_hosts(host_span, addr_array, family); - if (!(flags & NI_NUMERICHOST) && !res) - res = mlibc::lookup_addr_dns(host_span, addr_array, family); - - if (!res) { - if (flags & NI_NAMEREQD) - return EAI_NONAME; - if(!inet_ntop(family, addr_array.data(), host, host_len)) { - switch(errno) { - case EAFNOSUPPORT: - return EAI_FAMILY; - case ENOSPC: - return EAI_OVERFLOW; - default: - return EAI_FAIL; - } - } - } - - if (res < 0) - return -res; - } - - if (serv && serv_len) { - __ensure("getnameinfo(): not implemented service resolution yet!"); - __builtin_unreachable(); - } - - return 0; -} - -struct netent *getnetbyaddr(uint32_t, int) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -struct netent *getnetbyname(const char *) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -struct netent *getnetent(void) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -struct hostent *gethostbyname(const char *name) { - if (!name) { - h_errno = HOST_NOT_FOUND; - return NULL; - } - - struct mlibc::lookup_result buf; - frg::string<MemoryAllocator> canon{getAllocator()}; - int ret = 0; - if ((ret = mlibc::lookup_name_hosts(buf, name, canon)) <= 0) - ret = mlibc::lookup_name_dns(buf, name, canon); - if (ret <= 0) { - h_errno = HOST_NOT_FOUND; - return NULL; - } - - static struct hostent h; - if (h.h_name) { - getAllocator().free(h.h_name); - for (int i = 0; h.h_aliases[i] != NULL; i++) - getAllocator().free(h.h_aliases[i]); - free(h.h_aliases); - - if (h.h_addr_list) { - for (int i = 0; h.h_addr_list[i] != NULL; i++) - free(h.h_addr_list[i]); - free(h.h_addr_list); - } - } - h = {}; - - if (!canon.size()) - canon = frg::string<MemoryAllocator>{name, getAllocator()}; - - h.h_name = canon.data(); - - h.h_aliases = reinterpret_cast<char**>(malloc((buf.aliases.size() + 1) - * sizeof(char*))); - int alias_pos = 0; - for (auto &buf_name : buf.aliases) { - h.h_aliases[alias_pos] = buf_name.data(); - buf_name.detach(); - alias_pos++; - } - h.h_aliases[alias_pos] = NULL; - canon.detach(); - - // just pick the first family as the one for all addresses...?? - h.h_addrtype = buf.buf[0].family; - if (h.h_addrtype != AF_INET && h.h_addrtype != AF_INET6) { - // this is not allowed per spec - h_errno = NO_DATA; - return NULL; - } - - // can only be AF_INET or AF_INET6 - h.h_length = h.h_addrtype == AF_INET ? 4 : 16; - h.h_addr_list = reinterpret_cast<char**>(malloc((ret + 1) * sizeof(char*))); - int addr_pos = 0; - for (int i = 0; i < ret; i++) { - if (buf.buf[i].family != h.h_addrtype) - continue; - h.h_addr_list[addr_pos] = reinterpret_cast<char*>(malloc(h.h_length)); - memcpy(h.h_addr_list[addr_pos], buf.buf[i].addr, h.h_length); - addr_pos++; - } - h.h_addr_list[addr_pos] = NULL; - - return &h; -} - -struct hostent *gethostbyname2(const char *, int) { - __ensure(!"gethostbyname2() not implemented"); - __builtin_unreachable(); -} - -struct hostent *gethostbyaddr(const void *, socklen_t, int) { - __ensure(!"gethostbyaddr() not implemented"); - __builtin_unreachable(); -} - -int gethostbyaddr_r(const void *__restrict, socklen_t, int, struct hostent *__restrict, - char *__restrict, size_t, struct hostent **__restrict, int *__restrict) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -int gethostbyname_r(const char *__restrict, struct hostent *__restrict, char *__restrict, size_t, - struct hostent **__restrict, int *__restrict) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -struct protoent *getprotobyname(const char *) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -struct protoent *getprotobynumber(int) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -struct protoent *getprotoent(void) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -struct servent *getservbyname(const char *name, const char *proto) { - int iproto = -1; - if (proto &&(!strncmp(proto, "tcp", 3) || !strncmp(proto, "TCP", 3))) - iproto = IPPROTO_TCP; - else if (proto && (!strncmp(proto, "udp", 3) || !strncmp(proto, "UDP", 3))) - iproto = IPPROTO_UDP; - - static struct servent ret; - if (ret.s_name) { - free(ret.s_name); - ret.s_name = nullptr; - - for (char **alias = ret.s_aliases; *alias != NULL; alias++) { - free(*alias); - *alias = nullptr; - } - - free(ret.s_proto); - ret.s_proto = nullptr; - } - - mlibc::service_result serv_buf{getAllocator()}; - int count = mlibc::lookup_serv_by_name(serv_buf, name, iproto, - 0, 0); - if (count <= 0) - return NULL; - - ret.s_name = serv_buf[0].name.data(); - serv_buf[0].name.detach(); - // Sanity check. - if (strncmp(name, serv_buf[0].name.data(), serv_buf[0].name.size())) - return NULL; - - ret.s_aliases = reinterpret_cast<char**>(malloc((serv_buf[0].aliases.size() + 1) * sizeof(char*))); - int alias_pos = 0; - for (auto &buf_name : serv_buf[0].aliases) { - ret.s_aliases[alias_pos] = buf_name.data(); - buf_name.detach(); - alias_pos++; - } - ret.s_aliases[alias_pos] = NULL; - - ret.s_port = htons(serv_buf[0].port); - - auto proto_string = frg::string<MemoryAllocator>(getAllocator()); - if (!proto) { - if (serv_buf[0].protocol == IPPROTO_TCP) - proto_string = frg::string<MemoryAllocator>("tcp", getAllocator()); - else if (serv_buf[0].protocol == IPPROTO_UDP) - proto_string = frg::string<MemoryAllocator>("udp", getAllocator()); - else - return NULL; - } else { - proto_string = frg::string<MemoryAllocator>(proto, getAllocator()); - } - ret.s_proto = proto_string.data(); - proto_string.detach(); - - return &ret; -} - -struct servent *getservbyport(int port, const char *proto) { - int iproto = -1; - if (proto && (!strncmp(proto, "tcp", 3) || !strncmp(proto, "TCP", 3))) - iproto = IPPROTO_TCP; - else if (proto && (!strncmp(proto, "udp", 3) || !strncmp(proto, "UDP", 3))) - iproto = IPPROTO_UDP; - - static struct servent ret; - if (ret.s_name) { - free(ret.s_name); - ret.s_name = nullptr; - - for (char **alias = ret.s_aliases; *alias != NULL; alias++) { - free(*alias); - *alias = nullptr; - } - - free(ret.s_proto); - ret.s_proto = nullptr; - } - - mlibc::service_result serv_buf{getAllocator()}; - int count = mlibc::lookup_serv_by_port(serv_buf, iproto, ntohs(port)); - if (count <= 0) - return NULL; - - ret.s_name = serv_buf[0].name.data(); - serv_buf[0].name.detach(); - - ret.s_aliases = reinterpret_cast<char**>(malloc((serv_buf[0].aliases.size() + 1) * sizeof(char*))); - int alias_pos = 0; - for (auto &buf_name : serv_buf[0].aliases) { - ret.s_aliases[alias_pos] = buf_name.data(); - buf_name.detach(); - alias_pos++; - } - ret.s_aliases[alias_pos] = NULL; - - ret.s_port = port; - - auto proto_string = frg::string<MemoryAllocator>(getAllocator()); - if (!proto) { - if (serv_buf[0].protocol == IPPROTO_TCP) - proto_string = frg::string<MemoryAllocator>("tcp", getAllocator()); - else if (serv_buf[0].protocol == IPPROTO_UDP) - proto_string = frg::string<MemoryAllocator>("udp", getAllocator()); - else - return NULL; - } else { - proto_string = frg::string<MemoryAllocator>(proto, getAllocator()); - } - ret.s_proto = proto_string.data(); - proto_string.detach(); - - return &ret; -} - -struct servent *getservent(void) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -void sethostent(int) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -void setnetent(int) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -void setprotoent(int) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -void setservent(int) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} - -const char *hstrerror(int) { - __ensure(!"Not implemented"); - __builtin_unreachable(); -} |