[fusl] clang-format fusl

fusl/src/network/res_msend.c

 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <netdb.h>
 #include <arpa/inet.h>
 #include <stdint.h>
 #include <string.h>
 #include <poll.h>
 #include <time.h>
 #include <ctype.h>
 #include <unistd.h>
 #include <errno.h>
 #include <pthread.h>
 #include "stdio_impl.h"
 #include "syscall.h"
 #include "lookup.h"
 
-static void cleanup(void *p)
-{
-        __syscall(SYS_close, (intptr_t)p);
+static void cleanup(void* p) {
+  __syscall(SYS_close, (intptr_t)p);
 }
 
-static unsigned long mtime()
-{
-        struct timespec ts;
-        clock_gettime(CLOCK_REALTIME, &ts);
-        return (unsigned long)ts.tv_sec * 1000
-                + ts.tv_nsec / 1000000;
+static unsigned long mtime() {
+  struct timespec ts;
+  clock_gettime(CLOCK_REALTIME, &ts);
+  return (unsigned long)ts.tv_sec * 1000 + ts.tv_nsec / 1000000;
 }
 
-int __res_msend_rc(int nqueries, const unsigned char *const *queries,
-        const int *qlens, unsigned char *const *answers, int *alens, int asize,
-        const struct resolvconf *conf)
-{
-        int fd;
-        int timeout, attempts, retry_interval, servfail_retry;
-        union {
-                struct sockaddr_in sin;
-                struct sockaddr_in6 sin6;
-        } sa = {0}, ns[MAXNS] = {{0}};
-        socklen_t sl = sizeof sa.sin;
-        int nns = 0;
-        int family = AF_INET;
-        int rlen;
-        int next;
-        int i, j;
-        int cs;
-        struct pollfd pfd;
-        unsigned long t0, t1, t2;
+int __res_msend_rc(int nqueries,
+                   const unsigned char* const* queries,
+                   const int* qlens,
+                   unsigned char* const* answers,
+                   int* alens,
+                   int asize,
+                   const struct resolvconf* conf) {
+  int fd;
+  int timeout, attempts, retry_interval, servfail_retry;
+  union {
+    struct sockaddr_in sin;
+    struct sockaddr_in6 sin6;
+  } sa = {0}, ns[MAXNS] = {{0}};
+  socklen_t sl = sizeof sa.sin;
+  int nns = 0;
+  int family = AF_INET;
+  int rlen;
+  int next;
+  int i, j;
+  int cs;
+  struct pollfd pfd;
+  unsigned long t0, t1, t2;
 
-        pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+  pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
 
-        timeout = 1000*conf->timeout;
-        attempts = conf->attempts;
+  timeout = 1000 * conf->timeout;
+  attempts = conf->attempts;
 
-        nns = conf->nns;
-        for (nns=0; nns<conf->nns; nns++) {
-                const struct address *iplit = &conf->ns[nns];
-                if (iplit->family == AF_INET) {
-                        memcpy(&ns[nns].sin.sin_addr, iplit->addr, 4);
-                        ns[nns].sin.sin_port = htons(53);
-                        ns[nns].sin.sin_family = AF_INET;
-                } else {
-                        sl = sizeof sa.sin6;
-                        memcpy(&ns[nns].sin6.sin6_addr, iplit->addr, 16);
-                        ns[nns].sin6.sin6_port = htons(53);
-                        ns[nns].sin6.sin6_scope_id = iplit->scopeid;
-                        ns[nns].sin6.sin6_family = family = AF_INET6;
-                }
-        }
+  nns = conf->nns;
+  for (nns = 0; nns < conf->nns; nns++) {
+    const struct address* iplit = &conf->ns[nns];
+    if (iplit->family == AF_INET) {
+      memcpy(&ns[nns].sin.sin_addr, iplit->addr, 4);
+      ns[nns].sin.sin_port = htons(53);
+      ns[nns].sin.sin_family = AF_INET;
+    } else {
+      sl = sizeof sa.sin6;
+      memcpy(&ns[nns].sin6.sin6_addr, iplit->addr, 16);
+      ns[nns].sin6.sin6_port = htons(53);
+      ns[nns].sin6.sin6_scope_id = iplit->scopeid;
+      ns[nns].sin6.sin6_family = family = AF_INET6;
+    }
+  }
 
-        /* Get local address and open/bind a socket */
-        sa.sin.sin_family = family;
-        fd = socket(family, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
+  /* Get local address and open/bind a socket */
+  sa.sin.sin_family = family;
+  fd = socket(family, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
 
-        /* Handle case where system lacks IPv6 support */
-        if (fd < 0 && family == AF_INET6 && errno == EAFNOSUPPORT) {
-                fd = socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
-                family = AF_INET;
-        }
-        if (fd < 0 || bind(fd, (void *)&sa, sl) < 0) return -1;
+  /* Handle case where system lacks IPv6 support */
+  if (fd < 0 && family == AF_INET6 && errno == EAFNOSUPPORT) {
+    fd = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
+    family = AF_INET;
+  }
+  if (fd < 0 || bind(fd, (void*)&sa, sl) < 0)
+    return -1;
 
-        /* Past this point, there are no errors. Each individual query will
-         * yield either no reply (indicated by zero length) or an answer
-         * packet which is up to the caller to interpret. */
+  /* Past this point, there are no errors. Each individual query will
+   * yield either no reply (indicated by zero length) or an answer
+   * packet which is up to the caller to interpret. */
 
-        pthread_cleanup_push(cleanup, (void *)(intptr_t)fd);
-        pthread_setcancelstate(cs, 0);
+  pthread_cleanup_push(cleanup, (void*)(intptr_t)fd);
+  pthread_setcancelstate(cs, 0);
 
-        /* Convert any IPv4 addresses in a mixed environment to v4-mapped */
-        if (family == AF_INET6) {
-                setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &(int){0}, sizeof 0);
-                for (i=0; i<nns; i++) {
-                        if (ns[i].sin.sin_family != AF_INET) continue;
-                        memcpy(ns[i].sin6.sin6_addr.s6_addr+12,
-                                &ns[i].sin.sin_addr, 4);
-                        memcpy(ns[i].sin6.sin6_addr.s6_addr,
-                                "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
-                        ns[i].sin6.sin6_family = AF_INET6;
-                        ns[i].sin6.sin6_flowinfo = 0;
-                        ns[i].sin6.sin6_scope_id = 0;
-                }
-        }
+  /* Convert any IPv4 addresses in a mixed environment to v4-mapped */
+  if (family == AF_INET6) {
+    setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &(int){0}, sizeof 0);
+    for (i = 0; i < nns; i++) {
+      if (ns[i].sin.sin_family != AF_INET)
+        continue;
+      memcpy(ns[i].sin6.sin6_addr.s6_addr + 12, &ns[i].sin.sin_addr, 4);
+      memcpy(ns[i].sin6.sin6_addr.s6_addr, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
+      ns[i].sin6.sin6_family = AF_INET6;
+      ns[i].sin6.sin6_flowinfo = 0;
+      ns[i].sin6.sin6_scope_id = 0;
+    }
+  }
 
-        memset(alens, 0, sizeof *alens * nqueries);
+  memset(alens, 0, sizeof *alens * nqueries);
 
-        pfd.fd = fd;
-        pfd.events = POLLIN;
-        retry_interval = timeout / attempts;
-        next = 0;
-        t0 = t2 = mtime();
-        t1 = t2 - retry_interval;
+  pfd.fd = fd;
+  pfd.events = POLLIN;
+  retry_interval = timeout / attempts;
+  next = 0;
+  t0 = t2 = mtime();
+  t1 = t2 - retry_interval;
 
-        for (; t2-t0 < timeout; t2=mtime()) {
-                if (t2-t1 >= retry_interval) {
-                        /* Query all configured namservers in parallel */
-                        for (i=0; i<nqueries; i++)
-                                if (!alens[i])
-                                        for (j=0; j<nns; j++)
-                                                sendto(fd, queries[i],
-                                                        qlens[i], MSG_NOSIGNAL,
-                                                        (void *)&ns[j], sl);
-                        t1 = t2;
-                        servfail_retry = 2 * nqueries;
-                }
+  for (; t2 - t0 < timeout; t2 = mtime()) {
+    if (t2 - t1 >= retry_interval) {
+      /* Query all configured namservers in parallel */
+      for (i = 0; i < nqueries; i++)
+        if (!alens[i])
+          for (j = 0; j < nns; j++)
+            sendto(fd, queries[i], qlens[i], MSG_NOSIGNAL, (void*)&ns[j], sl);
+      t1 = t2;
+      servfail_retry = 2 * nqueries;
+    }
 
-                /* Wait for a response, or until time to retry */
-                if (poll(&pfd, 1, t1+retry_interval-t2) <= 0) continue;
+    /* Wait for a response, or until time to retry */
+    if (poll(&pfd, 1, t1 + retry_interval - t2) <= 0)
+      continue;
 
-                while ((rlen = recvfrom(fd, answers[next], asize, 0,
-                  (void *)&sa, (socklen_t[1]){sl})) >= 0) {
+    while ((rlen = recvfrom(fd, answers[next], asize, 0, (void*)&sa,
+                            (socklen_t[1]){sl})) >= 0) {
+      /* Ignore non-identifiable packets */
+      if (rlen < 4)
+        continue;
 
-                        /* Ignore non-identifiable packets */
-                        if (rlen < 4) continue;
+      /* Ignore replies from addresses we didn't send to */
+      for (j = 0; j < nns && memcmp(ns + j, &sa, sl); j++)
+        ;
+      if (j == nns)
+        continue;
 
-                        /* Ignore replies from addresses we didn't send to */
-                        for (j=0; j<nns && memcmp(ns+j, &sa, sl); j++);
-                        if (j==nns) continue;
+      /* Find which query this answer goes with, if any */
+      for (i = next; i < nqueries && (answers[next][0] != queries[i][0] ||
+                                      answers[next][1] != queries[i][1]);
+           i++)
+        ;
+      if (i == nqueries)
+        continue;
+      if (alens[i])
+        continue;
 
-                        /* Find which query this answer goes with, if any */
-                        for (i=next; i<nqueries && (
-                                answers[next][0] != queries[i][0] ||
-                                answers[next][1] != queries[i][1] ); i++);
-                        if (i==nqueries) continue;
-                        if (alens[i]) continue;
+      /* Only accept positive or negative responses;
+       * retry immediately on server failure, and ignore
+       * all other codes such as refusal. */
+      switch (answers[next][3] & 15) {
+        case 0:
+        case 3:
+          break;
+        case 2:
+          if (servfail_retry && servfail_retry--)
+            sendto(fd, queries[i], qlens[i], MSG_NOSIGNAL, (void*)&ns[j], sl);
+        default:
+          continue;
+      }
 
-                        /* Only accept positive or negative responses;
-                         * retry immediately on server failure, and ignore
-                         * all other codes such as refusal. */
-                        switch (answers[next][3] & 15) {
-                        case 0:
-                        case 3:
-                                break;
-                        case 2:
-                                if (servfail_retry && servfail_retry--)
-                                        sendto(fd, queries[i],
-                                                qlens[i], MSG_NOSIGNAL,
-                                                (void *)&ns[j], sl);
-                        default:
-                                continue;
-                        }
+      /* Store answer in the right slot, or update next
+       * available temp slot if it's already in place. */
+      alens[i] = rlen;
+      if (i == next)
+        for (; next < nqueries && alens[next]; next++)
+          ;
+      else
+        memcpy(answers[i], answers[next], rlen);
 
-                        /* Store answer in the right slot, or update next
-                         * available temp slot if it's already in place. */
-                        alens[i] = rlen;
-                        if (i == next)
-                                for (; next<nqueries && alens[next]; next++);
-                        else
-                                memcpy(answers[i], answers[next], rlen);
+      if (next == nqueries)
+        goto out;
+    }
+  }
+out:
+  pthread_cleanup_pop(1);
 
-                        if (next == nqueries) goto out;
-                }
-        }
-out:
-        pthread_cleanup_pop(1);
-
-        return 0;
+  return 0;
 }
 
-int __res_msend(int nqueries, const unsigned char *const *queries,
-        const int *qlens, unsigned char *const *answers, int *alens, int asize)
-{
-        struct resolvconf conf;
-        if (__get_resolv_conf(&conf, 0, 0) < 0) return -1;
-        return __res_msend_rc(nqueries, queries, qlens, answers, alens, asize, &conf);
+int __res_msend(int nqueries,
+                const unsigned char* const* queries,
+                const int* qlens,
+                unsigned char* const* answers,
+                int* alens,
+                int asize) {
+  struct resolvconf conf;
+  if (__get_resolv_conf(&conf, 0, 0) < 0)
+    return -1;
+  return __res_msend_rc(nqueries, queries, qlens, answers, alens, asize, &conf);
 }