Land part 2 of clang-format changes

Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu <nigelb@redhat.com>

1 files changed, 385 insertions, 381 deletions

diff --git a/libglusterfs/src/run.c b/libglusterfs/src/run.c
index c501bab9685..41275066b20 100644
--- a/libglusterfs/src/run.c
+++ b/libglusterfs/src/run.c
@@ -42,8 +42,9 @@
  *
  * $ cc -DRUN_DO_DEMO -DRUN_STANDALONE -orun run.c
  */
-#if defined(RUN_STANDALONE ) || defined(RUN_DO_DEMO)
-int close_fds_except (int *fdv, size_t count);
+#if defined(RUN_STANDALONE) || defined(RUN_DO_DEMO)
+int
+close_fds_except(int *fdv, size_t count);
 #define sys_read(f, b, c) read(f, b, c)
 #define sys_write(f, b, c) write(f, b, c)
 #define sys_close(f) close(f)
@@ -54,36 +55,37 @@ int close_fds_except (int *fdv, size_t count);
 #define gf_strdup(s) strdup(s)
 #define gf_vasprintf(p, f, va) vasprintf(p, f, va)
 #define gf_loglevel_t int
-#define gf_msg_callingfn(dom, level, errnum, msgid, fmt, args...) printf("LOG: " fmt "\n", ##args)
+#define gf_msg_callingfn(dom, level, errnum, msgid, fmt, args...)              \
+    printf("LOG: " fmt "\n", ##args)
 #define LOG_DEBUG 0
 #ifdef RUN_STANDALONE
 #include <stdbool.h>
 #include <sys/resource.h>
 int
-close_fds_except (int *fdv, size_t count)
+close_fds_except(int *fdv, size_t count)
 {
-        int    i            = 0;
-        size_t j            = 0;
-        bool   should_close = true;
-        struct rlimit rl;
-        int ret = -1;
-
-        ret = getrlimit (RLIMIT_NOFILE, &rl);
-        if (ret)
-                return ret;
-
-        for (i = 0; i < rl.rlim_cur; i++) {
-                should_close = true;
-                for (j = 0; j < count; j++) {
-                        if (i == fdv[j]) {
-                                should_close = false;
-                                break;
-                        }
-                }
-                if (should_close)
-                        sys_close (i);
+    int i = 0;
+    size_t j = 0;
+    bool should_close = true;
+    struct rlimit rl;
+    int ret = -1;
+
+    ret = getrlimit(RLIMIT_NOFILE, &rl);
+    if (ret)
+        return ret;
+
+    for (i = 0; i < rl.rlim_cur; i++) {
+        should_close = true;
+        for (j = 0; j < count; j++) {
+            if (i == fdv[j]) {
+                should_close = false;
+                break;
+            }
         }
-        return 0;
+        if (should_close)
+            sys_close(i);
+    }
+    return 0;
 }
 #endif
 #ifdef __linux__
@@ -97,470 +99,472 @@ close_fds_except (int *fdv, size_t count)
 
 #include "run.h"
 void
-runinit (runner_t *runner)
+runinit(runner_t *runner)
 {
-        int i = 0;
-
-        runner->argvlen = 64;
-        runner->argv = GF_CALLOC (runner->argvlen,
-                                  sizeof (*runner->argv),
-                                  gf_common_mt_run_argv);
-        runner->runerr = runner->argv ? 0 : errno;
-        runner->chpid = -1;
-        for (i = 0; i < 3; i++) {
-                runner->chfd[i] = -1;
-                runner->chio[i] = NULL;
-        }
+    int i = 0;
+
+    runner->argvlen = 64;
+    runner->argv = GF_CALLOC(runner->argvlen, sizeof(*runner->argv),
+                             gf_common_mt_run_argv);
+    runner->runerr = runner->argv ? 0 : errno;
+    runner->chpid = -1;
+    for (i = 0; i < 3; i++) {
+        runner->chfd[i] = -1;
+        runner->chio[i] = NULL;
+    }
 }
 
 FILE *
-runner_chio (runner_t *runner, int fd)
+runner_chio(runner_t *runner, int fd)
 {
-        GF_ASSERT (fd > 0 && fd < 3);
+    GF_ASSERT(fd > 0 && fd < 3);
 
-        if ((fd > 0) && (fd < 3))
-                return runner->chio[fd];
+    if ((fd > 0) && (fd < 3))
+        return runner->chio[fd];
 
-        return NULL;
+    return NULL;
 }
 
 static void
-runner_insert_arg (runner_t *runner, char *arg)
+runner_insert_arg(runner_t *runner, char *arg)
 {
-        int i = 0;
+    int i = 0;
 
-        GF_ASSERT (arg);
+    GF_ASSERT(arg);
 
-        if (runner->runerr)
-                return;
+    if (runner->runerr)
+        return;
 
-        for (i = 0; i < runner->argvlen; i++) {
-                if (runner->argv[i] == NULL)
-                        break;
-        }
-        GF_ASSERT (i < runner->argvlen);
-
-        if (i == runner->argvlen - 1) {
-                runner->argv = GF_REALLOC (runner->argv,
-                                           runner->argvlen * 2 * sizeof (*runner->argv));
-                if (!runner->argv) {
-                        runner->runerr = errno;
-                        return;
-                }
-                memset (/* "+" is aware of the type of its left side,
-                         * no need to multiply with type-size */
-                        runner->argv + runner->argvlen,
-                        0, runner->argvlen * sizeof (*runner->argv));
-                runner->argvlen *= 2;
-        }
+    for (i = 0; i < runner->argvlen; i++) {
+        if (runner->argv[i] == NULL)
+            break;
+    }
+    GF_ASSERT(i < runner->argvlen);
 
-        runner->argv[i] = arg;
+    if (i == runner->argvlen - 1) {
+        runner->argv = GF_REALLOC(runner->argv,
+                                  runner->argvlen * 2 * sizeof(*runner->argv));
+        if (!runner->argv) {
+            runner->runerr = errno;
+            return;
+        }
+        memset(/* "+" is aware of the type of its left side,
+                * no need to multiply with type-size */
+               runner->argv + runner->argvlen, 0,
+               runner->argvlen * sizeof(*runner->argv));
+        runner->argvlen *= 2;
+    }
+
+    runner->argv[i] = arg;
 }
 
 void
-runner_add_arg (runner_t *runner, const char *arg)
+runner_add_arg(runner_t *runner, const char *arg)
 {
-        arg = gf_strdup (arg);
-        if (!arg) {
-                runner->runerr = errno;
-                return;
-        }
+    arg = gf_strdup(arg);
+    if (!arg) {
+        runner->runerr = errno;
+        return;
+    }
 
-        runner_insert_arg (runner, (char *)arg);
+    runner_insert_arg(runner, (char *)arg);
 }
 
 static void
-runner_va_add_args (runner_t *runner, va_list argp)
+runner_va_add_args(runner_t *runner, va_list argp)
 {
-        const char *arg;
+    const char *arg;
 
-        while ((arg = va_arg (argp, const char *)))
-                runner_add_arg (runner, arg);
+    while ((arg = va_arg(argp, const char *)))
+        runner_add_arg(runner, arg);
 }
 
 void
-runner_add_args (runner_t *runner, ...)
+runner_add_args(runner_t *runner, ...)
 {
-        va_list argp;
+    va_list argp;
 
-        va_start (argp, runner);
-        runner_va_add_args (runner, argp);
-        va_end (argp);
+    va_start(argp, runner);
+    runner_va_add_args(runner, argp);
+    va_end(argp);
 }
 
 void
-runner_argprintf (runner_t *runner, const char *format, ...)
+runner_argprintf(runner_t *runner, const char *format, ...)
 {
-        va_list argva;
-        char *arg = NULL;
-        int ret = 0;
+    va_list argva;
+    char *arg = NULL;
+    int ret = 0;
 
-        va_start (argva, format);
-        ret = gf_vasprintf (&arg, format, argva);
-        va_end (argva);
+    va_start(argva, format);
+    ret = gf_vasprintf(&arg, format, argva);
+    va_end(argva);
 
-        if (ret < 0) {
-                runner->runerr = errno;
-                return;
-        }
+    if (ret < 0) {
+        runner->runerr = errno;
+        return;
+    }
 
-        runner_insert_arg (runner, arg);
+    runner_insert_arg(runner, arg);
 }
 
 void
-runner_log (runner_t *runner, const char *dom, gf_loglevel_t lvl,
-            const char *msg)
+runner_log(runner_t *runner, const char *dom, gf_loglevel_t lvl,
+           const char *msg)
 {
-        char *buf = NULL;
-        size_t len = 0;
-        int i = 0;
-
-        if (runner->runerr)
-                return;
-
-        for (i = 0;; i++) {
-                if (runner->argv[i] == NULL)
-                        break;
-                len += (strlen (runner->argv[i]) + 1);
-        }
-
-        buf = GF_CALLOC (1, len + 1, gf_common_mt_run_logbuf);
-        if (!buf) {
-                runner->runerr = errno;
-                return;
-        }
-        for (i = 0;; i++) {
-                if (runner->argv[i] == NULL)
-                        break;
-                strcat (buf, runner->argv[i]);
-                strcat (buf, " ");
-        }
-        if (len > 0)
-                buf[len - 1] = '\0';
-
-        gf_msg_callingfn (dom, lvl, 0, LG_MSG_RUNNER_LOG, "%s: %s", msg, buf);
-
-        GF_FREE (buf);
+    char *buf = NULL;
+    size_t len = 0;
+    int i = 0;
+
+    if (runner->runerr)
+        return;
+
+    for (i = 0;; i++) {
+        if (runner->argv[i] == NULL)
+            break;
+        len += (strlen(runner->argv[i]) + 1);
+    }
+
+    buf = GF_CALLOC(1, len + 1, gf_common_mt_run_logbuf);
+    if (!buf) {
+        runner->runerr = errno;
+        return;
+    }
+    for (i = 0;; i++) {
+        if (runner->argv[i] == NULL)
+            break;
+        strcat(buf, runner->argv[i]);
+        strcat(buf, " ");
+    }
+    if (len > 0)
+        buf[len - 1] = '\0';
+
+    gf_msg_callingfn(dom, lvl, 0, LG_MSG_RUNNER_LOG, "%s: %s", msg, buf);
+
+    GF_FREE(buf);
 }
 
 void
-runner_redir (runner_t *runner, int fd, int tgt_fd)
+runner_redir(runner_t *runner, int fd, int tgt_fd)
 {
-        GF_ASSERT (fd > 0 && fd < 3);
+    GF_ASSERT(fd > 0 && fd < 3);
 
-        if ((fd > 0) && (fd < 3))
-                runner->chfd[fd] = (tgt_fd >= 0) ? tgt_fd : -2;
+    if ((fd > 0) && (fd < 3))
+        runner->chfd[fd] = (tgt_fd >= 0) ? tgt_fd : -2;
 }
 
 int
-runner_start (runner_t *runner)
+runner_start(runner_t *runner)
 {
-        int pi[3][2] = {{-1, -1}, {-1, -1}, {-1, -1}};
-        int xpi[2];
-        int ret = 0;
-        int errno_priv = 0;
-        int i = 0;
-        sigset_t set;
-
-        if (runner->runerr) {
-                errno = runner->runerr;
-                return -1;
-        }
-
-        GF_ASSERT (runner->argv[0]);
-
-        /* set up a channel to child to communicate back
-         * possible execve(2) failures
-         */
-        ret = pipe(xpi);
-        if (ret != -1)
-                ret = fcntl (xpi[1], F_SETFD, FD_CLOEXEC);
-
-        for (i = 0; i < 3; i++) {
-                if (runner->chfd[i] != -2)
-                        continue;
-                ret = pipe (pi[i]);
-                if (ret != -1) {
-                        runner->chio[i] = fdopen (pi[i][i ? 0 : 1], i ? "r" : "w");
-                        if (!runner->chio[i])
-                                ret = -1;
-                }
+    int pi[3][2] = {{-1, -1}, {-1, -1}, {-1, -1}};
+    int xpi[2];
+    int ret = 0;
+    int errno_priv = 0;
+    int i = 0;
+    sigset_t set;
+
+    if (runner->runerr) {
+        errno = runner->runerr;
+        return -1;
+    }
+
+    GF_ASSERT(runner->argv[0]);
+
+    /* set up a channel to child to communicate back
+     * possible execve(2) failures
+     */
+    ret = pipe(xpi);
+    if (ret != -1)
+        ret = fcntl(xpi[1], F_SETFD, FD_CLOEXEC);
+
+    for (i = 0; i < 3; i++) {
+        if (runner->chfd[i] != -2)
+            continue;
+        ret = pipe(pi[i]);
+        if (ret != -1) {
+            runner->chio[i] = fdopen(pi[i][i ? 0 : 1], i ? "r" : "w");
+            if (!runner->chio[i])
+                ret = -1;
         }
+    }
 
-        if (ret != -1)
-                runner->chpid = fork ();
-        switch (runner->chpid) {
+    if (ret != -1)
+        runner->chpid = fork();
+    switch (runner->chpid) {
         case -1:
-                errno_priv = errno;
-                sys_close (xpi[0]);
-                sys_close (xpi[1]);
-                for (i = 0; i < 3; i++) {
-                        sys_close (pi[i][0]);
-                        sys_close (pi[i][1]);
-                }
-                errno = errno_priv;
-                return -1;
+            errno_priv = errno;
+            sys_close(xpi[0]);
+            sys_close(xpi[1]);
+            for (i = 0; i < 3; i++) {
+                sys_close(pi[i][0]);
+                sys_close(pi[i][1]);
+            }
+            errno = errno_priv;
+            return -1;
         case 0:
-                for (i = 0; i < 3; i++)
-                        sys_close (pi[i][i ? 0 : 1]);
-                sys_close (xpi[0]);
-                ret = 0;
-
-                for (i = 0; i < 3; i++) {
-                        if (ret == -1)
-                                break;
-                        switch (runner->chfd[i]) {
-                        case -1:
-                                /* no redir */
-                                break;
-                        case -2:
-                                /* redir to pipe */
-                                ret = dup2 (pi[i][i ? 1 : 0], i);
-                                break;
-                        default:
-                                /* redir to file */
-                                ret = dup2 (runner->chfd[i], i);
-                        }
-                }
-
-                if (ret != -1 ) {
-                        int fdv[4] = {0, 1, 2, xpi[1]};
-
-                        ret = close_fds_except(fdv, sizeof (fdv) / sizeof (*fdv));
-                }
-
-                if (ret != -1) {
-                        /* save child from inheriting our signal handling */
-                        sigemptyset (&set);
-                        sigprocmask (SIG_SETMASK, &set, NULL);
-
-                        execvp (runner->argv[0], runner->argv);
-                }
-                ret = sys_write (xpi[1], &errno, sizeof (errno));
-                _exit (1);
-        }
-
-        errno_priv = errno;
-        for (i = 0; i < 3; i++)
-                sys_close (pi[i][i ? 1 : 0]);
-        sys_close (xpi[1]);
-        if (ret == -1) {
-                for (i = 0; i < 3; i++) {
-                        if (runner->chio[i]) {
-                                fclose (runner->chio[i]);
-                                runner->chio[i] = NULL;
-                        }
+            for (i = 0; i < 3; i++)
+                sys_close(pi[i][i ? 0 : 1]);
+            sys_close(xpi[0]);
+            ret = 0;
+
+            for (i = 0; i < 3; i++) {
+                if (ret == -1)
+                    break;
+                switch (runner->chfd[i]) {
+                    case -1:
+                        /* no redir */
+                        break;
+                    case -2:
+                        /* redir to pipe */
+                        ret = dup2(pi[i][i ? 1 : 0], i);
+                        break;
+                    default:
+                        /* redir to file */
+                        ret = dup2(runner->chfd[i], i);
                 }
-        } else {
-                ret = sys_read (xpi[0], (char *)&errno_priv, sizeof (errno_priv));
-                sys_close (xpi[0]);
-                if (ret <= 0)
-                        return 0;
-                GF_ASSERT (ret == sizeof (errno_priv));
+            }
+
+            if (ret != -1) {
+                int fdv[4] = {0, 1, 2, xpi[1]};
+
+                ret = close_fds_except(fdv, sizeof(fdv) / sizeof(*fdv));
+            }
+
+            if (ret != -1) {
+                /* save child from inheriting our signal handling */
+                sigemptyset(&set);
+                sigprocmask(SIG_SETMASK, &set, NULL);
+
+                execvp(runner->argv[0], runner->argv);
+            }
+            ret = sys_write(xpi[1], &errno, sizeof(errno));
+            _exit(1);
+    }
+
+    errno_priv = errno;
+    for (i = 0; i < 3; i++)
+        sys_close(pi[i][i ? 1 : 0]);
+    sys_close(xpi[1]);
+    if (ret == -1) {
+        for (i = 0; i < 3; i++) {
+            if (runner->chio[i]) {
+                fclose(runner->chio[i]);
+                runner->chio[i] = NULL;
+            }
         }
-        errno = errno_priv;
-        return -1;
+    } else {
+        ret = sys_read(xpi[0], (char *)&errno_priv, sizeof(errno_priv));
+        sys_close(xpi[0]);
+        if (ret <= 0)
+            return 0;
+        GF_ASSERT(ret == sizeof(errno_priv));
+    }
+    errno = errno_priv;
+    return -1;
 }
 
 int
-runner_end_reuse (runner_t *runner)
+runner_end_reuse(runner_t *runner)
 {
-        int i = 0;
-        int ret = 1;
-        int chstat = 0;
-
-        if (runner->chpid > 0) {
-                if (waitpid (runner->chpid, &chstat, 0) == runner->chpid) {
-                        if (WIFEXITED(chstat)) {
-                                ret = WEXITSTATUS(chstat);
-                        } else {
-                                ret = chstat;
-                        }
-                }
+    int i = 0;
+    int ret = 1;
+    int chstat = 0;
+
+    if (runner->chpid > 0) {
+        if (waitpid(runner->chpid, &chstat, 0) == runner->chpid) {
+            if (WIFEXITED(chstat)) {
+                ret = WEXITSTATUS(chstat);
+            } else {
+                ret = chstat;
+            }
         }
+    }
 
-        for (i = 0; i < 3; i++) {
-                if (runner->chio[i]) {
-                        fclose (runner->chio[i]);
-                        runner->chio[i] = NULL;
-                }
+    for (i = 0; i < 3; i++) {
+        if (runner->chio[i]) {
+            fclose(runner->chio[i]);
+            runner->chio[i] = NULL;
         }
+    }
 
-        return -ret;
+    return -ret;
 }
 
 int
-runner_end (runner_t *runner)
+runner_end(runner_t *runner)
 {
-        int i = 0;
-        int ret = -1;
-        char **p = NULL;
+    int i = 0;
+    int ret = -1;
+    char **p = NULL;
 
-        ret = runner_end_reuse (runner);
+    ret = runner_end_reuse(runner);
 
-        if (runner->argv) {
-                for (p = runner->argv; *p; p++)
-                        GF_FREE (*p);
-                GF_FREE (runner->argv);
-        }
-        for (i = 0; i < 3; i++)
-                sys_close (runner->chfd[i]);
+    if (runner->argv) {
+        for (p = runner->argv; *p; p++)
+            GF_FREE(*p);
+        GF_FREE(runner->argv);
+    }
+    for (i = 0; i < 3; i++)
+        sys_close(runner->chfd[i]);
 
-        return ret;
+    return ret;
 }
 
 static int
-runner_run_generic (runner_t *runner, int (*rfin)(runner_t *runner))
+runner_run_generic(runner_t *runner, int (*rfin)(runner_t *runner))
 {
-        int ret = 0;
+    int ret = 0;
 
-        ret = runner_start (runner);
-        if (ret)
-                goto out;
-        ret = rfin (runner);
+    ret = runner_start(runner);
+    if (ret)
+        goto out;
+    ret = rfin(runner);
 
 out:
-        return ret;
+    return ret;
 }
 
 int
-runner_run (runner_t *runner)
+runner_run(runner_t *runner)
 {
-        return runner_run_generic (runner, runner_end);
+    return runner_run_generic(runner, runner_end);
 }
 
-
 int
-runner_run_nowait (runner_t *runner)
+runner_run_nowait(runner_t *runner)
 {
-	int pid;
+    int pid;
 
-	pid = fork ();
+    pid = fork();
 
-	if (!pid) {
-		setsid ();
-		_exit (runner_start (runner));
-	}
+    if (!pid) {
+        setsid();
+        _exit(runner_start(runner));
+    }
 
-	if (pid > 0)
-		runner->chpid = pid;
-	return runner_end (runner);
+    if (pid > 0)
+        runner->chpid = pid;
+    return runner_end(runner);
 }
 
-
 int
-runner_run_reuse (runner_t *runner)
+runner_run_reuse(runner_t *runner)
 {
-        return runner_run_generic (runner, runner_end_reuse);
+    return runner_run_generic(runner, runner_end_reuse);
 }
 
 int
-runcmd (const char *arg, ...)
+runcmd(const char *arg, ...)
 {
-        runner_t runner;
-        va_list argp;
+    runner_t runner;
+    va_list argp;
 
-        runinit (&runner);
-        /* ISO C requires a named argument before '...' */
-        runner_add_arg (&runner, arg);
+    runinit(&runner);
+    /* ISO C requires a named argument before '...' */
+    runner_add_arg(&runner, arg);
 
-        va_start (argp, arg);
-        runner_va_add_args (&runner, argp);
-        va_end (argp);
+    va_start(argp, arg);
+    runner_va_add_args(&runner, argp);
+    va_end(argp);
 
-        return runner_run (&runner);
+    return runner_run(&runner);
 }
 
 #ifdef RUN_DO_DEMO
 static void
-TBANNER (const char *txt)
+TBANNER(const char *txt)
 {
-        printf("######\n### demoing %s\n", txt);
+    printf("######\n### demoing %s\n", txt);
 }
 
 int
-main (int argc, char **argv)
+main(int argc, char **argv)
 {
-        runner_t runner;
-        char buf[80];
-        char *wdbuf;;
-        int ret;
-        int fd;
-        long pathmax = pathconf ("/", _PC_PATH_MAX);
-        struct timeval tv = {0,};
-        struct timeval *tvp = NULL;
-        char *tfile;
-
-        wdbuf = malloc (pathmax);
-        assert (wdbuf);
-        getcwd (wdbuf, pathmax);
-
-        TBANNER ("basic functionality: running \"echo a b\"");
-        runcmd ("echo", "a", "b", NULL);
-
-        TBANNER ("argv extension: running \"echo 1 2 ... 100\"");
-        runcmd ("echo", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10",
-                "11", "12", "13", "14", "15", "16", "17", "18", "19", "20",
-                "21", "22", "23", "24", "25", "26", "27", "28", "29", "30",
-                "31", "32", "33", "34", "35", "36", "37", "38", "39", "40",
-                "41", "42", "43", "44", "45", "46", "47", "48", "49", "50",
-                "51", "52", "53", "54", "55", "56", "57", "58", "59", "60",
-                "61", "62", "63", "64", "65", "66", "67", "68", "69", "70",
-                "71", "72", "73", "74", "75", "76", "77", "78", "79", "80",
-                "81", "82", "83", "84", "85", "86", "87", "88", "89", "90",
-                "91", "92", "93", "94", "95", "96", "97", "98", "99", "100", NULL);
-
-        TBANNER ("add_args, argprintf, log, and popen-style functionality:\n"
-                 "    running a multiline echo command, emit a log about it,\n"
-                 "    redirect it to a pipe, read output lines\n"
-                 "    and print them prefixed with \"got: \"");
-        runinit (&runner);
-        runner_add_args (&runner, "echo", "pid:", NULL);
-        runner_argprintf (&runner, "%d\n", getpid());
-        runner_add_arg (&runner, "wd:");
-        runner_add_arg (&runner, wdbuf);
-        runner_redir (&runner, 1, RUN_PIPE);
-        runner_start (&runner);
-        runner_log (&runner, "(x)", LOG_DEBUG, "starting program");
-        while (fgets (buf, sizeof(buf), runner_chio (&runner, 1)))
-                printf ("got: %s", buf);
-        runner_end (&runner);
-
-        TBANNER ("execve error reporting: running a non-existent command");
-        ret = runcmd ("bafflavvitty", NULL);
-        printf ("%d %d [%s]\n", ret, errno, strerror (errno));
-
-        TBANNER ("output redirection: running \"echo foo\" redirected "
-                 "to a temp file");
-        tfile = strdup ("/tmp/foofXXXXXX");
-        assert (tfile);
-        fd = mkstemp (tfile);
-        assert (fd != -1);
-        printf ("redirecting to %s\n", tfile);
-        runinit (&runner);
-        runner_add_args (&runner, "echo", "foo", NULL);
-        runner_redir (&runner, 1, fd);
-        ret = runner_run (&runner);
-        printf ("runner_run returned: %d", ret);
-        if (ret != 0)
-                printf (", with errno %d [%s]", errno, strerror (errno));
-        putchar ('\n');
-
-        /* sleep for seconds given as argument (0 means forever)
-         * to allow investigation of post-execution state to
-         * cbeck for resource leaks (eg. zombies).
-         */
-        if (argc > 1) {
-                tv.tv_sec = strtoul (argv[1], NULL, 10);
-                printf ("### %s", "sleeping for");
-                if (tv.tv_sec > 0) {
-                        printf (" %d seconds\n", tv.tv_sec);
-                        tvp = &tv;
-                } else
-                        printf ("%s\n", "ever");
-                select (0, 0, 0, 0, tvp);
-        }
-
-        return 0;
+    runner_t runner;
+    char buf[80];
+    char *wdbuf;
+    ;
+    int ret;
+    int fd;
+    long pathmax = pathconf("/", _PC_PATH_MAX);
+    struct timeval tv = {
+        0,
+    };
+    struct timeval *tvp = NULL;
+    char *tfile;
+
+    wdbuf = malloc(pathmax);
+    assert(wdbuf);
+    getcwd(wdbuf, pathmax);
+
+    TBANNER("basic functionality: running \"echo a b\"");
+    runcmd("echo", "a", "b", NULL);
+
+    TBANNER("argv extension: running \"echo 1 2 ... 100\"");
+    runcmd("echo", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11",
+           "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22",
+           "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33",
+           "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44",
+           "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "55",
+           "56", "57", "58", "59", "60", "61", "62", "63", "64", "65", "66",
+           "67", "68", "69", "70", "71", "72", "73", "74", "75", "76", "77",
+           "78", "79", "80", "81", "82", "83", "84", "85", "86", "87", "88",
+           "89", "90", "91", "92", "93", "94", "95", "96", "97", "98", "99",
+           "100", NULL);
+
+    TBANNER(
+        "add_args, argprintf, log, and popen-style functionality:\n"
+        "    running a multiline echo command, emit a log about it,\n"
+        "    redirect it to a pipe, read output lines\n"
+        "    and print them prefixed with \"got: \"");
+    runinit(&runner);
+    runner_add_args(&runner, "echo", "pid:", NULL);
+    runner_argprintf(&runner, "%d\n", getpid());
+    runner_add_arg(&runner, "wd:");
+    runner_add_arg(&runner, wdbuf);
+    runner_redir(&runner, 1, RUN_PIPE);
+    runner_start(&runner);
+    runner_log(&runner, "(x)", LOG_DEBUG, "starting program");
+    while (fgets(buf, sizeof(buf), runner_chio(&runner, 1)))
+        printf("got: %s", buf);
+    runner_end(&runner);
+
+    TBANNER("execve error reporting: running a non-existent command");
+    ret = runcmd("bafflavvitty", NULL);
+    printf("%d %d [%s]\n", ret, errno, strerror(errno));
+
+    TBANNER(
+        "output redirection: running \"echo foo\" redirected "
+        "to a temp file");
+    tfile = strdup("/tmp/foofXXXXXX");
+    assert(tfile);
+    fd = mkstemp(tfile);
+    assert(fd != -1);
+    printf("redirecting to %s\n", tfile);
+    runinit(&runner);
+    runner_add_args(&runner, "echo", "foo", NULL);
+    runner_redir(&runner, 1, fd);
+    ret = runner_run(&runner);
+    printf("runner_run returned: %d", ret);
+    if (ret != 0)
+        printf(", with errno %d [%s]", errno, strerror(errno));
+    putchar('\n');
+
+    /* sleep for seconds given as argument (0 means forever)
+     * to allow investigation of post-execution state to
+     * cbeck for resource leaks (eg. zombies).
+     */
+    if (argc > 1) {
+        tv.tv_sec = strtoul(argv[1], NULL, 10);
+        printf("### %s", "sleeping for");
+        if (tv.tv_sec > 0) {
+            printf(" %d seconds\n", tv.tv_sec);
+            tvp = &tv;
+        } else
+            printf("%s\n", "ever");
+        select(0, 0, 0, 0, tvp);
+    }
+
+    return 0;
 }
 #endif