deps: upgrade libuv to 1.18.0

PR-URL: https://github.com/nodejs/node/pull/17282
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

13 files changed, 526 insertions, 269 deletions

diff --git a/deps/uv/src/unix/aix-common.c b/deps/uv/src/unix/aix-common.c
new file mode 100644
index 0000000000..2cfe8be6f1
--- /dev/null
+++ b/deps/uv/src/unix/aix-common.c
@@ -0,0 +1,292 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <sys/time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <utmp.h>
+#include <libgen.h>
+
+#include <sys/protosw.h>
+#include <procinfo.h>
+#include <sys/proc.h>
+#include <sys/procfs.h>
+
+#include <sys/poll.h>
+
+#include <sys/pollset.h>
+#include <ctype.h>
+
+#include <sys/mntctl.h>
+#include <sys/vmount.h>
+#include <limits.h>
+#include <strings.h>
+#include <sys/vnode.h>
+
+uint64_t uv__hrtime(uv_clocktype_t type) {
+  uint64_t G = 1000000000;
+  timebasestruct_t t;
+  read_wall_time(&t, TIMEBASE_SZ);
+  time_base_to_time(&t, TIMEBASE_SZ);
+  return (uint64_t) t.tb_high * G + t.tb_low;
+}
+
+
+/*
+ * We could use a static buffer for the path manipulations that we need outside
+ * of the function, but this function could be called by multiple consumers and
+ * we don't want to potentially create a race condition in the use of snprintf.
+ * There is no direct way of getting the exe path in AIX - either through /procfs
+ * or through some libc APIs. The below approach is to parse the argv[0]'s pattern
+ * and use it in conjunction with PATH environment variable to craft one.
+ */
+int uv_exepath(char* buffer, size_t* size) {
+  int res;
+  char args[PATH_MAX];
+  char abspath[PATH_MAX];
+  size_t abspath_size;
+  struct procsinfo pi;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return -EINVAL;
+
+  pi.pi_pid = getpid();
+  res = getargs(&pi, sizeof(pi), args, sizeof(args));
+  if (res < 0)
+    return -EINVAL;
+
+  /*
+   * Possibilities for args:
+   * i) an absolute path such as: /home/user/myprojects/nodejs/node
+   * ii) a relative path such as: ./node or ../myprojects/nodejs/node
+   * iii) a bare filename such as "node", after exporting PATH variable
+   *     to its location.
+   */
+
+  /* Case i) and ii) absolute or relative paths */
+  if (strchr(args, '/') != NULL) {
+    if (realpath(args, abspath) != abspath)
+      return -errno;
+
+    abspath_size = strlen(abspath);
+
+    *size -= 1;
+    if (*size > abspath_size)
+      *size = abspath_size;
+
+    memcpy(buffer, abspath, *size);
+    buffer[*size] = '\0';
+
+    return 0;
+  } else {
+    /* Case iii). Search PATH environment variable */
+    char trypath[PATH_MAX];
+    char *clonedpath = NULL;
+    char *token = NULL;
+    char *path = getenv("PATH");
+
+    if (path == NULL)
+      return -EINVAL;
+
+    clonedpath = uv__strdup(path);
+    if (clonedpath == NULL)
+      return -ENOMEM;
+
+    token = strtok(clonedpath, ":");
+    while (token != NULL) {
+      snprintf(trypath, sizeof(trypath) - 1, "%s/%s", token, args);
+      if (realpath(trypath, abspath) == abspath) {
+        /* Check the match is executable */
+        if (access(abspath, X_OK) == 0) {
+          abspath_size = strlen(abspath);
+
+          *size -= 1;
+          if (*size > abspath_size)
+            *size = abspath_size;
+
+          memcpy(buffer, abspath, *size);
+          buffer[*size] = '\0';
+
+          uv__free(clonedpath);
+          return 0;
+        }
+      }
+      token = strtok(NULL, ":");
+    }
+    uv__free(clonedpath);
+
+    /* Out of tokens (path entries), and no match found */
+    return -EINVAL;
+  }
+}
+
+void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count) {
+  int i;
+
+  for (i = 0; i < count; ++i) {
+    uv__free(cpu_infos[i].model);
+  }
+
+  uv__free(cpu_infos);
+}
+
+
+int uv_interface_addresses(uv_interface_address_t** addresses,
+  int* count) {
+  uv_interface_address_t* address;
+  int sockfd, inet6, size = 1;
+  struct ifconf ifc;
+  struct ifreq *ifr, *p, flg;
+  struct sockaddr_dl* sa_addr;
+
+  *count = 0;
+
+  if (0 > (sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP))) {
+    return -errno;
+  }
+
+  if (ioctl(sockfd, SIOCGSIZIFCONF, &size) == -1) {
+    uv__close(sockfd);
+    return -errno;
+  }
+
+  ifc.ifc_req = (struct ifreq*)uv__malloc(size);
+  ifc.ifc_len = size;
+  if (ioctl(sockfd, SIOCGIFCONF, &ifc) == -1) {
+    uv__close(sockfd);
+    return -errno;
+  }
+
+#define ADDR_SIZE(p) MAX((p).sa_len, sizeof(p))
+
+  /* Count all up and running ipv4/ipv6 addresses */
+  ifr = ifc.ifc_req;
+  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
+    p = ifr;
+    ifr = (struct ifreq*)
+      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
+
+    if (!(p->ifr_addr.sa_family == AF_INET6 ||
+          p->ifr_addr.sa_family == AF_INET))
+      continue;
+
+    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
+    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
+      uv__close(sockfd);
+      return -errno;
+    }
+
+    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
+      continue;
+
+    (*count)++;
+  }
+
+  /* Alloc the return interface structs */
+  *addresses = uv__malloc(*count * sizeof(uv_interface_address_t));
+  if (!(*addresses)) {
+    uv__close(sockfd);
+    return -ENOMEM;
+  }
+  address = *addresses;
+
+  ifr = ifc.ifc_req;
+  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
+    p = ifr;
+    ifr = (struct ifreq*)
+      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
+
+    if (!(p->ifr_addr.sa_family == AF_INET6 ||
+          p->ifr_addr.sa_family == AF_INET))
+      continue;
+
+    inet6 = (p->ifr_addr.sa_family == AF_INET6);
+
+    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
+    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
+      uv__close(sockfd);
+      return -ENOSYS;
+    }
+
+    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
+      continue;
+
+    /* All conditions above must match count loop */
+
+    address->name = uv__strdup(p->ifr_name);
+
+    if (inet6)
+      address->address.address6 = *((struct sockaddr_in6*) &p->ifr_addr);
+    else
+      address->address.address4 = *((struct sockaddr_in*) &p->ifr_addr);
+
+    sa_addr = (struct sockaddr_dl*) &p->ifr_addr;
+    memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
+
+    if (ioctl(sockfd, SIOCGIFNETMASK, p) == -1) {
+      uv__close(sockfd);
+      return -ENOSYS;
+    }
+
+    if (inet6)
+      address->netmask.netmask6 = *((struct sockaddr_in6*) &p->ifr_addr);
+    else
+      address->netmask.netmask4 = *((struct sockaddr_in*) &p->ifr_addr);
+
+    address->is_internal = flg.ifr_flags & IFF_LOOPBACK ? 1 : 0;
+
+    address++;
+  }
+
+#undef ADDR_SIZE
+
+  uv__close(sockfd);
+  return 0;
+}
+
+
+void uv_free_interface_addresses(uv_interface_address_t* addresses,
+  int count) {
+  int i;
+
+  for (i = 0; i < count; ++i) {
+    uv__free(addresses[i].name);
+  }
+
+  uv__free(addresses);
+}
\ No newline at end of file
diff --git a/deps/uv/src/unix/aix.c b/deps/uv/src/unix/aix.c
index 56a8f4ffe7..06f19a4fc9 100644
--- a/deps/uv/src/unix/aix.c
+++ b/deps/uv/src/unix/aix.c
@@ -1,4 +1,5 @@
 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to
  * deal in the Software without restriction, including without limitation the
@@ -316,104 +317,6 @@ update_timeout:
 }
 
 
-uint64_t uv__hrtime(uv_clocktype_t type) {
-  uint64_t G = 1000000000;
-  timebasestruct_t t;
-  read_wall_time(&t, TIMEBASE_SZ);
-  time_base_to_time(&t, TIMEBASE_SZ);
-  return (uint64_t) t.tb_high * G + t.tb_low;
-}
-
-
-/*
- * We could use a static buffer for the path manipulations that we need outside
- * of the function, but this function could be called by multiple consumers and
- * we don't want to potentially create a race condition in the use of snprintf.
- * There is no direct way of getting the exe path in AIX - either through /procfs
- * or through some libc APIs. The below approach is to parse the argv[0]'s pattern
- * and use it in conjunction with PATH environment variable to craft one.
- */
-int uv_exepath(char* buffer, size_t* size) {
-  int res;
-  char args[PATH_MAX];
-  char abspath[PATH_MAX];
-  size_t abspath_size;
-  struct procsinfo pi;
-
-  if (buffer == NULL || size == NULL || *size == 0)
-    return -EINVAL;
-
-  pi.pi_pid = getpid();
-  res = getargs(&pi, sizeof(pi), args, sizeof(args));
-  if (res < 0)
-    return -EINVAL;
-
-  /*
-   * Possibilities for args:
-   * i) an absolute path such as: /home/user/myprojects/nodejs/node
-   * ii) a relative path such as: ./node or ../myprojects/nodejs/node
-   * iii) a bare filename such as "node", after exporting PATH variable
-   *     to its location.
-   */
-
-  /* Case i) and ii) absolute or relative paths */
-  if (strchr(args, '/') != NULL) {
-    if (realpath(args, abspath) != abspath)
-      return -errno;
-
-    abspath_size = strlen(abspath);
-
-    *size -= 1;
-    if (*size > abspath_size)
-      *size = abspath_size;
-
-    memcpy(buffer, abspath, *size);
-    buffer[*size] = '\0';
-
-    return 0;
-  } else {
-  /* Case iii). Search PATH environment variable */
-    char trypath[PATH_MAX];
-    char *clonedpath = NULL;
-    char *token = NULL;
-    char *path = getenv("PATH");
-
-    if (path == NULL)
-      return -EINVAL;
-
-    clonedpath = uv__strdup(path);
-    if (clonedpath == NULL)
-      return -ENOMEM;
-
-    token = strtok(clonedpath, ":");
-    while (token != NULL) {
-      snprintf(trypath, sizeof(trypath) - 1, "%s/%s", token, args);
-      if (realpath(trypath, abspath) == abspath) {
-        /* Check the match is executable */
-        if (access(abspath, X_OK) == 0) {
-          abspath_size = strlen(abspath);
-
-          *size -= 1;
-          if (*size > abspath_size)
-            *size = abspath_size;
-
-          memcpy(buffer, abspath, *size);
-          buffer[*size] = '\0';
-
-          uv__free(clonedpath);
-          return 0;
-        }
-      }
-      token = strtok(NULL, ":");
-    }
-    uv__free(clonedpath);
-
-    /* Out of tokens (path entries), and no match found */
-    return -EINVAL;
-  }
-}
-
-
 uint64_t uv_get_free_memory(void) {
   perfstat_memory_total_t mem_total;
   int result = perfstat_memory_total(NULL, &mem_total, sizeof(mem_total), 1);
@@ -1018,6 +921,7 @@ int uv_uptime(double* uptime) {
   size_t entries = 0;
   time_t boot_time;
 
+  boot_time = 0;
   utmpname(UTMP_FILE);
 
   setutent();
@@ -1094,143 +998,6 @@ int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
 }
 
 
-void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count) {
-  int i;
-
-  for (i = 0; i < count; ++i) {
-    uv__free(cpu_infos[i].model);
-  }
-
-  uv__free(cpu_infos);
-}
-
-
-int uv_interface_addresses(uv_interface_address_t** addresses,
-  int* count) {
-  uv_interface_address_t* address;
-  int sockfd, inet6, size = 1;
-  struct ifconf ifc;
-  struct ifreq *ifr, *p, flg;
-  struct sockaddr_dl* sa_addr;
-
-  *count = 0;
-
-  if (0 > (sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP))) {
-    return -errno;
-  }
-
-  if (ioctl(sockfd, SIOCGSIZIFCONF, &size) == -1) {
-    uv__close(sockfd);
-    return -errno;
-  }
-
-  ifc.ifc_req = (struct ifreq*)uv__malloc(size);
-  ifc.ifc_len = size;
-  if (ioctl(sockfd, SIOCGIFCONF, &ifc) == -1) {
-    uv__close(sockfd);
-    return -errno;
-  }
-
-#define ADDR_SIZE(p) MAX((p).sa_len, sizeof(p))
-
-  /* Count all up and running ipv4/ipv6 addresses */
-  ifr = ifc.ifc_req;
-  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
-    p = ifr;
-    ifr = (struct ifreq*)
-      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
-
-    if (!(p->ifr_addr.sa_family == AF_INET6 ||
-          p->ifr_addr.sa_family == AF_INET))
-      continue;
-
-    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
-    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
-      uv__close(sockfd);
-      return -errno;
-    }
-
-    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
-      continue;
-
-    (*count)++;
-  }
-
-  /* Alloc the return interface structs */
-  *addresses = (uv_interface_address_t*)
-    uv__malloc(*count * sizeof(uv_interface_address_t));
-  if (!(*addresses)) {
-    uv__close(sockfd);
-    return -ENOMEM;
-  }
-  address = *addresses;
-
-  ifr = ifc.ifc_req;
-  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
-    p = ifr;
-    ifr = (struct ifreq*)
-      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
-
-    if (!(p->ifr_addr.sa_family == AF_INET6 ||
-          p->ifr_addr.sa_family == AF_INET))
-      continue;
-
-    inet6 = (p->ifr_addr.sa_family == AF_INET6);
-
-    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
-    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
-      uv__close(sockfd);
-      return -ENOSYS;
-    }
-
-    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
-      continue;
-
-    /* All conditions above must match count loop */
-
-    address->name = uv__strdup(p->ifr_name);
-
-    if (inet6)
-      address->address.address6 = *((struct sockaddr_in6*) &p->ifr_addr);
-    else
-      address->address.address4 = *((struct sockaddr_in*) &p->ifr_addr);
-
-    sa_addr = (struct sockaddr_dl*) &p->ifr_addr;
-    memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
-
-    if (ioctl(sockfd, SIOCGIFNETMASK, p) == -1) {
-      uv__close(sockfd);
-      return -ENOSYS;
-    }
-
-    if (inet6)
-      address->netmask.netmask6 = *((struct sockaddr_in6*) &p->ifr_addr);
-    else
-      address->netmask.netmask4 = *((struct sockaddr_in*) &p->ifr_addr);
-
-    address->is_internal = flg.ifr_flags & IFF_LOOPBACK ? 1 : 0;
-
-    address++;
-  }
-
-#undef ADDR_SIZE
-
-  uv__close(sockfd);
-  return 0;
-}
-
-
-void uv_free_interface_addresses(uv_interface_address_t* addresses,
-  int count) {
-  int i;
-
-  for (i = 0; i < count; ++i) {
-    uv__free(addresses[i].name);
-  }
-
-  uv__free(addresses);
-}
-
 void uv__platform_invalidate_fd(uv_loop_t* loop, int fd) {
   struct pollfd* events;
   uintptr_t i;
diff --git a/deps/uv/src/unix/core.c b/deps/uv/src/unix/core.c
index d64593a313..c7e431e529 100644
--- a/deps/uv/src/unix/core.c
+++ b/deps/uv/src/unix/core.c
@@ -1345,6 +1345,11 @@ uv_os_fd_t uv_get_osfhandle(int fd) {
 }
 
 
+uv_pid_t uv_os_getpid(void) {
+  return getpid();
+}
+
+
 uv_pid_t uv_os_getppid(void) {
   return getppid();
 }
diff --git a/deps/uv/src/unix/ibmi.c b/deps/uv/src/unix/ibmi.c
new file mode 100644
index 0000000000..8380d02db7
--- /dev/null
+++ b/deps/uv/src/unix/ibmi.c
@@ -0,0 +1,112 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <sys/time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <utmp.h>
+#include <libgen.h>
+
+#include <sys/protosw.h>
+#include <procinfo.h>
+#include <sys/proc.h>
+#include <sys/procfs.h>
+
+#include <ctype.h>
+
+#include <sys/mntctl.h>
+#include <sys/vmount.h>
+#include <limits.h>
+#include <strings.h>
+#include <sys/vnode.h>
+
+uint64_t uv_get_free_memory(void) {
+  return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_AVPHYS_PAGES);
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_PHYS_PAGES);
+}
+
+
+void uv_loadavg(double avg[3]) {
+    avg[0] = avg[1] = avg[2] = 0;
+    return;
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  return UV_ENOSYS;
+}
+
+
+int uv_uptime(double* uptime) {
+  return UV_ENOSYS;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  unsigned int numcpus, idx = 0;
+  uv_cpu_info_t* cpu_info;
+
+  *cpu_infos = NULL;
+  *count = 0;
+
+  numcpus = sysconf(_SC_NPROCESSORS_ONLN);
+
+  *cpu_infos = uv__malloc(numcpus * sizeof(uv_cpu_info_t));
+  if (!*cpu_infos) {
+    return -ENOMEM;
+  }
+
+  cpu_info = *cpu_infos;
+  for (idx = 0; idx < numcpus; idx++) {
+    cpu_info->speed = 0;
+    cpu_info->model = uv__strdup("unknown");
+    cpu_info->cpu_times.user = 0;
+    cpu_info->cpu_times.sys = 0;
+    cpu_info->cpu_times.idle = 0;
+    cpu_info->cpu_times.irq = 0;
+    cpu_info->cpu_times.nice = 0;
+    cpu_info++;
+  }
+  *count = numcpus;
+
+  return 0;
+}
\ No newline at end of file
diff --git a/deps/uv/src/unix/os390-syscalls.c b/deps/uv/src/unix/os390-syscalls.c
index 86c6852b4b..5bc489387e 100644
--- a/deps/uv/src/unix/os390-syscalls.c
+++ b/deps/uv/src/unix/os390-syscalls.c
@@ -427,3 +427,12 @@ ssize_t os390_readlink(const char* path, char* buf, size_t len) {
 
   return rlen;
 }
+
+
+size_t strnlen(const char* str, size_t maxlen) {
+  void* p = memchr(str, 0, maxlen);
+  if (p == NULL)
+    return maxlen;
+  else
+    return p - str;
+}
diff --git a/deps/uv/src/unix/os390-syscalls.h b/deps/uv/src/unix/os390-syscalls.h
index 7aba3d27da..5ce6a681bf 100644
--- a/deps/uv/src/unix/os390-syscalls.h
+++ b/deps/uv/src/unix/os390-syscalls.h
@@ -66,5 +66,6 @@ int scandir(const char* maindir, struct dirent*** namelist,
             const struct dirent **));
 char *mkdtemp(char* path);
 ssize_t os390_readlink(const char* path, char* buf, size_t len);
+size_t strnlen(const char* str, size_t maxlen);
 
 #endif /* UV_OS390_SYSCALL_H_ */
diff --git a/deps/uv/src/unix/process.c b/deps/uv/src/unix/process.c
index 80b9686ec8..9842710d0e 100644
--- a/deps/uv/src/unix/process.c
+++ b/deps/uv/src/unix/process.c
@@ -419,6 +419,7 @@ int uv_spawn(uv_loop_t* loop,
   return -ENOSYS;
 #else
   int signal_pipe[2] = { -1, -1 };
+  int pipes_storage[8][2];
   int (*pipes)[2];
   int stdio_count;
   ssize_t r;
@@ -443,7 +444,10 @@ int uv_spawn(uv_loop_t* loop,
     stdio_count = 3;
 
   err = -ENOMEM;
-  pipes = uv__malloc(stdio_count * sizeof(*pipes));
+  pipes = pipes_storage;
+  if (stdio_count > (int) ARRAY_SIZE(pipes_storage))
+    pipes = uv__malloc(stdio_count * sizeof(*pipes));
+
   if (pipes == NULL)
     goto error;
 
@@ -548,7 +552,9 @@ int uv_spawn(uv_loop_t* loop,
   process->pid = pid;
   process->exit_cb = options->exit_cb;
 
-  uv__free(pipes);
+  if (pipes != pipes_storage)
+    uv__free(pipes);
+
   return exec_errorno;
 
 error:
@@ -562,7 +568,9 @@ error:
       if (pipes[i][1] != -1)
         uv__close_nocheckstdio(pipes[i][1]);
     }
-    uv__free(pipes);
+
+    if (pipes != pipes_storage)
+      uv__free(pipes);
   }
 
   return err;
diff --git a/deps/uv/src/unix/stream.c b/deps/uv/src/unix/stream.c
index 672a7e2d6c..6fc0a01f5a 100644
--- a/deps/uv/src/unix/stream.c
+++ b/deps/uv/src/unix/stream.c
@@ -1261,8 +1261,9 @@ static void uv__read(uv_stream_t* stream) {
 
 
 int uv_shutdown(uv_shutdown_t* req, uv_stream_t* stream, uv_shutdown_cb cb) {
-  assert((stream->type == UV_TCP || stream->type == UV_NAMED_PIPE) &&
-         "uv_shutdown (unix) only supports uv_handle_t right now");
+  assert(stream->type == UV_TCP ||
+         stream->type == UV_TTY ||
+         stream->type == UV_NAMED_PIPE);
 
   if (!(stream->flags & UV_STREAM_WRITABLE) ||
       stream->flags & UV_STREAM_SHUT ||
diff --git a/deps/uv/src/unix/tcp.c b/deps/uv/src/unix/tcp.c
index c423dcb15f..c7c8d21c66 100644
--- a/deps/uv/src/unix/tcp.c
+++ b/deps/uv/src/unix/tcp.c
@@ -28,15 +28,12 @@
 #include <errno.h>
 
 
-static int maybe_new_socket(uv_tcp_t* handle, int domain, int flags) {
+static int new_socket(uv_tcp_t* handle, int domain, unsigned long flags) {
+  struct sockaddr_storage saddr;
+  socklen_t slen;
   int sockfd;
   int err;
 
-  if (domain == AF_UNSPEC || uv__stream_fd(handle) != -1) {
-    handle->flags |= flags;
-    return 0;
-  }
-
   err = uv__socket(domain, SOCK_STREAM, 0);
   if (err < 0)
     return err;
@@ -48,10 +45,74 @@ static int maybe_new_socket(uv_tcp_t* handle, int domain, int flags) {
     return err;
   }
 
+  if (flags & UV_HANDLE_BOUND) {
+    /* Bind this new socket to an arbitrary port */
+    slen = sizeof(saddr);
+    memset(&saddr, 0, sizeof(saddr));
+    err = getsockname(uv__stream_fd(handle), (struct sockaddr*) &saddr, &slen);
+    if (err) {
+      uv__close(sockfd);
+      return err;
+    }
+
+    err = bind(uv__stream_fd(handle), (struct sockaddr*) &saddr, slen);
+    if (err) {
+      uv__close(sockfd);
+      return err;
+    }
+  }
+
   return 0;
 }
 
 
+static int maybe_new_socket(uv_tcp_t* handle, int domain, unsigned long flags) {
+  struct sockaddr_storage saddr;
+  socklen_t slen;
+
+  if (domain == AF_UNSPEC) {
+    handle->flags |= flags;
+    return 0;
+  }
+
+  if (uv__stream_fd(handle) != -1) {
+
+    if (flags & UV_HANDLE_BOUND) {
+
+      if (handle->flags & UV_HANDLE_BOUND) {
+        /* It is already bound to a port. */
+        handle->flags |= flags;
+        return 0;
+      }
+      
+      /* Query to see if tcp socket is bound. */
+      slen = sizeof(saddr);
+      memset(&saddr, 0, sizeof(saddr));
+      if (getsockname(uv__stream_fd(handle), (struct sockaddr*) &saddr, &slen))
+        return -errno;
+
+      if ((saddr.ss_family == AF_INET6 &&
+          ((struct sockaddr_in6*) &saddr)->sin6_port != 0) ||
+          (saddr.ss_family == AF_INET &&
+          ((struct sockaddr_in*) &saddr)->sin_port != 0)) {
+        /* Handle is already bound to a port. */
+        handle->flags |= flags;
+        return 0;
+      }
+
+      /* Bind to arbitrary port */
+      if (bind(uv__stream_fd(handle), (struct sockaddr*) &saddr, slen))
+        return -errno;
+    }
+
+    handle->flags |= flags;
+    return 0;
+  }
+
+  return new_socket(handle, domain, flags);
+}
+
+
 int uv_tcp_init_ex(uv_loop_t* loop, uv_tcp_t* tcp, unsigned int flags) {
   int domain;
 
@@ -260,6 +321,7 @@ int uv_tcp_getpeername(const uv_tcp_t* handle,
 
 int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb) {
   static int single_accept = -1;
+  unsigned long flags;
   int err;
 
   if (tcp->delayed_error)
@@ -273,30 +335,17 @@ int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb) {
   if (single_accept)
     tcp->flags |= UV_TCP_SINGLE_ACCEPT;
 
-  err = maybe_new_socket(tcp, AF_INET, UV_STREAM_READABLE);
-  if (err)
-    return err;
-
-#ifdef __MVS__
+  flags = UV_STREAM_READABLE;
+#if defined(__MVS__)
   /* on zOS the listen call does not bind automatically
      if the socket is unbound. Hence the manual binding to
      an arbitrary port is required to be done manually
   */
-
-  if (!(tcp->flags & UV_HANDLE_BOUND)) {
-    struct sockaddr_storage saddr;
-    socklen_t slen  = sizeof(saddr);
-    memset(&saddr, 0, sizeof(saddr));
-
-    if (getsockname(tcp->io_watcher.fd, (struct sockaddr*) &saddr, &slen))
-      return -errno;
-
-    if (bind(tcp->io_watcher.fd, (struct sockaddr*) &saddr, slen))
-      return -errno;
-
-    tcp->flags |= UV_HANDLE_BOUND;
-  }
-#endif
+  flags |= UV_HANDLE_BOUND;
+#endif  
+  err = maybe_new_socket(tcp, AF_INET, flags);
+  if (err)
+    return err;
 
   if (listen(tcp->io_watcher.fd, backlog))
     return -errno;
diff --git a/deps/uv/src/win/fs.c b/deps/uv/src/win/fs.c
index b90eaa7548..11c7c13edd 100644
--- a/deps/uv/src/win/fs.c
+++ b/deps/uv/src/win/fs.c
@@ -439,8 +439,15 @@ void fs__open(uv_fs_t* req) {
    * does. We indiscriminately use all the sharing modes, to match
    * UNIX semantics. In particular, this ensures that the file can
    * be deleted even whilst it's open, fixing issue #1449.
+   * We still support exclusive sharing mode, since it is necessary
+   * for opening raw block devices, otherwise Windows will prevent
+   * any attempt to write past the master boot record.
    */
-  share = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
+  if (flags & UV_FS_O_EXLOCK) {
+    share = 0;
+  } else {
+    share = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
+  }
 
   switch (flags & (UV_FS_O_CREAT | UV_FS_O_EXCL | UV_FS_O_TRUNC)) {
   case 0:
diff --git a/deps/uv/src/win/pipe.c b/deps/uv/src/win/pipe.c
index 642213bc88..1a7c4dc15e 100644
--- a/deps/uv/src/win/pipe.c
+++ b/deps/uv/src/win/pipe.c
@@ -31,8 +31,8 @@
 #include "stream-inl.h"
 #include "req-inl.h"
 
-#include <AclAPI.h>
-#include <AccCtrl.h>
+#include <aclapi.h>
+#include <accctrl.h>
 
 typedef struct uv__ipc_queue_item_s uv__ipc_queue_item_t;
 
diff --git a/deps/uv/src/win/thread.c b/deps/uv/src/win/thread.c
index 30b2d7793c..9eaad77cd0 100644
--- a/deps/uv/src/win/thread.c
+++ b/deps/uv/src/win/thread.c
@@ -182,6 +182,7 @@ int uv_thread_join(uv_thread_t *tid) {
   else {
     CloseHandle(*tid);
     *tid = 0;
+    MemoryBarrier();  /* For feature parity with pthread_join(). */
     return 0;
   }
 }
diff --git a/deps/uv/src/win/util.c b/deps/uv/src/win/util.c
index 2aec9f8dfe..3100bc23ad 100644
--- a/deps/uv/src/win/util.c
+++ b/deps/uv/src/win/util.c
@@ -331,6 +331,11 @@ uint64_t uv_get_total_memory(void) {
 }
 
 
+uv_pid_t uv_os_getpid(void) {
+  return GetCurrentProcessId();
+}
+
+
 uv_pid_t uv_os_getppid(void) {
   int parent_pid = -1;
   HANDLE handle;