m5term: assume localhost if host name not provided.

util/term/term.c:
    Reindent.
util/term/term.c:
    Assume localhost if only port number is given on command line.

--HG--
extra : convert_revision : 768e61a56339a0795ca258cca788e9a2c20cbaae

1 files changed, 143 insertions, 140 deletions

diff --git a/util/term/term.c b/util/term/term.c
index 8a95480b1..597966159 100644
--- a/util/term/term.c
+++ b/util/term/term.c
@@ -60,46 +60,49 @@ void	usage(int);
 int
 main(int argc, char *argv[])
 {
-        int ch, s, ret;
-        char *host, *port, *endp;
-        struct addrinfo hints;
-        socklen_t len;
-
-        ret = 1;
-        s = 0;
-        host = NULL;
-        port = NULL;
-        endp = NULL;
-
-        strncpy(progname, argv[0], sizeof progname);
-
-        /* Cruft to make sure options are clean, and used properly. */
-        if (argc != 3 || !argv[1] || !argv[2])
-                usage(1);
-
+    int ch, s, ret;
+    char *host, *port, *endp;
+    struct addrinfo hints;
+    socklen_t len;
+
+    ret = 1;
+    s = 0;
+    host = NULL;
+    port = NULL;
+    endp = NULL;
+
+    strncpy(progname, argv[0], sizeof progname);
+
+    /* Cruft to make sure options are clean, and used properly. */
+    if (argc == 2) {
+        host = "localhost";
+        port = argv[1];
+    } else if (argc == 3) {
         host = argv[1];
         port = argv[2];
+    } else {
+        usage(1);
+    }
 
+    if (!isatty(STDIN_FILENO))
+        errx(1, "not attached to a terminal");
 
-        if (!isatty(STDIN_FILENO))
-                errx(1, "not attached to a terminal");
+    raw_term();
 
-        raw_term();
+    /* Initialize addrinfo structure */
+    memset(&hints, 0, sizeof(struct addrinfo));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_protocol = IPPROTO_TCP;
 
-        /* Initialize addrinfo structure */
-        memset(&hints, 0, sizeof(struct addrinfo));
-        hints.ai_family = AF_UNSPEC;
-        hints.ai_socktype = SOCK_STREAM;
-        hints.ai_protocol = IPPROTO_TCP;
+    s = remote_connect(host, port, hints);
+    ret = 0;
+    readwrite(s);
 
-        s = remote_connect(host, port, hints);
-        ret = 0;
-        readwrite(s);
+    if (s)
+        close(s);
 
-        if (s)
-                close(s);
-
-        exit(ret);
+    exit(ret);
 }
 
 /*
@@ -110,28 +113,28 @@ main(int argc, char *argv[])
 int
 remote_connect(char *host, char *port, struct addrinfo hints)
 {
-        struct addrinfo *res, *res0;
-        int s, error;
+    struct addrinfo *res, *res0;
+    int s, error;
 
-        if ((error = getaddrinfo(host, port, &hints, &res)))
-                errx(1, "getaddrinfo: %s", gai_strerror(error));
+    if ((error = getaddrinfo(host, port, &hints, &res)))
+        errx(1, "getaddrinfo: %s", gai_strerror(error));
 
-        res0 = res;
-        do {
-                if ((s = socket(res0->ai_family, res0->ai_socktype,
-                    res0->ai_protocol)) < 0)
-                        continue;
+    res0 = res;
+    do {
+        if ((s = socket(res0->ai_family, res0->ai_socktype,
+                        res0->ai_protocol)) < 0)
+            continue;
 
-                if (connect(s, res0->ai_addr, res0->ai_addrlen) == 0)
-                        break;
+        if (connect(s, res0->ai_addr, res0->ai_addrlen) == 0)
+            break;
 
-                close(s);
-                s = -1;
-        } while ((res0 = res0->ai_next) != NULL);
+        close(s);
+        s = -1;
+    } while ((res0 = res0->ai_next) != NULL);
 
-        freeaddrinfo(res);
+    freeaddrinfo(res);
 
-        return (s);
+    return (s);
 }
 
 /*
@@ -141,79 +144,79 @@ remote_connect(char *host, char *port, struct addrinfo hints)
 void
 readwrite(int nfd)
 {
-        struct pollfd pfd[2];
-        char buf[BUFSIZ];
-        int wfd = fileno(stdin), n, ret;
-        int lfd = fileno(stdout);
-        int escape = 0;
-
-        /* Setup Network FD */
-        pfd[0].fd = nfd;
-        pfd[0].events = POLLIN;
-
-        /* Setup STDIN FD */
-        pfd[1].fd = wfd;
-        pfd[1].events = POLLIN;
-
-        while (pfd[0].fd != -1) {
-                if ((n = poll(pfd, 2, -1)) < 0) {
-                        close(nfd);
-                        err(1, "Polling Error");
-                }
+    struct pollfd pfd[2];
+    char buf[BUFSIZ];
+    int wfd = fileno(stdin), n, ret;
+    int lfd = fileno(stdout);
+    int escape = 0;
+
+    /* Setup Network FD */
+    pfd[0].fd = nfd;
+    pfd[0].events = POLLIN;
+
+    /* Setup STDIN FD */
+    pfd[1].fd = wfd;
+    pfd[1].events = POLLIN;
+
+    while (pfd[0].fd != -1) {
+        if ((n = poll(pfd, 2, -1)) < 0) {
+            close(nfd);
+            err(1, "Polling Error");
+        }
 
-                if (n == 0)
-                        return;
+        if (n == 0)
+            return;
+
+        if (pfd[0].revents & POLLIN) {
+            if ((n = read(nfd, buf, sizeof(buf))) < 0)
+                return;
+            else if (n == 0) {
+                shutdown(nfd, SHUT_RD);
+                pfd[0].fd = -1;
+                pfd[0].events = 0;
+            } else {
+                if ((ret = atomicio(write, lfd, buf, n)) != n)
+                    return;
+            }
+        }
 
-                if (pfd[0].revents & POLLIN) {
-                        if ((n = read(nfd, buf, sizeof(buf))) < 0)
-                                return;
-                        else if (n == 0) {
-                                shutdown(nfd, SHUT_RD);
-                                pfd[0].fd = -1;
-                                pfd[0].events = 0;
-                        } else {
-                                if ((ret = atomicio(write, lfd, buf, n)) != n)
-                                        return;
-                        }
+        if (pfd[1].revents & POLLIN) {
+            if ((n = read(wfd, buf, sizeof(buf))) < 0)
+                return;
+            else if (n == 0) {
+                shutdown(nfd, SHUT_WR);
+                pfd[1].fd = -1;
+                pfd[1].events = 0;
+            } else {
+                if (escape) {
+                    char buf2[] = "~";
+                    if (*buf == '.') {
+                        printf("quit!\n");
+                        return;
+                    }
+                    escape = 0;
+                    if (*buf != '~' &&
+                        (ret = atomicio(write, nfd, buf2, 1)) != n)
+                        return;
+                } else {
+                    escape = (*buf == '~');
+                    if (escape)
+                        continue;
                 }
 
-                if (pfd[1].revents & POLLIN) {
-                        if ((n = read(wfd, buf, sizeof(buf))) < 0)
-                                return;
-                        else if (n == 0) {
-                                shutdown(nfd, SHUT_WR);
-                                pfd[1].fd = -1;
-                                pfd[1].events = 0;
-                        } else {
-                                if (escape) {
-                                        char buf2[] = "~";
-                                        if (*buf == '.') {
-                                                printf("quit!\n");
-                                                return;
-                                        }
-                                        escape = 0;
-                                        if (*buf != '~' &&
-                                            (ret = atomicio(write, nfd, buf2, 1)) != n)
-                                                return;
-                                } else {
-                                        escape = (*buf == '~');
-                                        if (escape)
-                                                continue;
-                                }
-
-                                if ((ret = atomicio(write, nfd, buf, n)) != n)
-                                        return;
-                        }
-                }
+                if ((ret = atomicio(write, nfd, buf, n)) != n)
+                    return;
+            }
         }
+    }
 }
 
 void
 usage(int ret)
 {
-        fprintf(stderr, "usage: %s hostname port\n", progname);
-        if (ret)
-                exit(1);
+    fprintf(stderr, "usage: %s hostname port\n", progname);
+    if (ret)
+        exit(1);
 }
 
 /*
@@ -247,22 +250,22 @@ usage(int ret)
 ssize_t
 atomicio(ssize_t (*f) (), int fd, void *_s, size_t n)
 {
-        char *s = _s;
-        ssize_t res, pos = 0;
-
-        while (n > pos) {
-                res = (f) (fd, s + pos, n - pos);
-                switch (res) {
-                case -1:
-                        if (errno == EINTR || errno == EAGAIN)
-                                continue;
-                case 0:
-                        return (res);
-                default:
-                        pos += res;
-                }
+    char *s = _s;
+    ssize_t res, pos = 0;
+
+    while (n > pos) {
+        res = (f) (fd, s + pos, n - pos);
+        switch (res) {
+          case -1:
+            if (errno == EINTR || errno == EAGAIN)
+                continue;
+          case 0:
+            return (res);
+          default:
+            pos += res;
         }
-        return (pos);
+    }
+    return (pos);
 }
 
 /*
@@ -284,28 +287,28 @@ atomicio(ssize_t (*f) (), int fd, void *_s, size_t n)
 void
 raw_term()
 {
-        struct termios ios;
+    struct termios ios;
 
-        if (tcgetattr(STDIN_FILENO, &ios) < 0)
-            errx(1, "tcgetagttr\n");
+    if (tcgetattr(STDIN_FILENO, &ios) < 0)
+        errx(1, "tcgetagttr\n");
 
-        memcpy(&saved_ios, &ios, sizeof(struct termios));
+    memcpy(&saved_ios, &ios, sizeof(struct termios));
 
-        ios.c_iflag &= ~(ISTRIP|ICRNL|IGNCR|ICRNL|IXOFF|IXON);
-        ios.c_oflag &= ~(OPOST);
-        ios.c_oflag &= (ONLCR);
-        ios.c_lflag &= ~(ISIG|ICANON|ECHO);
-        ios.c_cc[VMIN] = 1;
-        ios.c_cc[VTIME] = 0;
+    ios.c_iflag &= ~(ISTRIP|ICRNL|IGNCR|ICRNL|IXOFF|IXON);
+    ios.c_oflag &= ~(OPOST);
+    ios.c_oflag &= (ONLCR);
+    ios.c_lflag &= ~(ISIG|ICANON|ECHO);
+    ios.c_cc[VMIN] = 1;
+    ios.c_cc[VTIME] = 0;
 
-        if (tcsetattr(STDIN_FILENO, TCSANOW, &ios) < 0)
-            errx(1, "tcsetattr\n");
+    if (tcsetattr(STDIN_FILENO, TCSANOW, &ios) < 0)
+        errx(1, "tcsetattr\n");
 
-        atexit(restore_term);
+    atexit(restore_term);
 }
 
 void
 restore_term()
 {
-        tcsetattr(STDIN_FILENO, TCSANOW, &saved_ios);
+    tcsetattr(STDIN_FILENO, TCSANOW, &saved_ios);
 }