lib/tests/t_api.c

	t_api.c revision b7974ee772cc5df1efe879100e62331bebf061cf
/*
 * Copyright (C) 1999, 2000  Internet Software Consortium.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

#include    <ctype.h>
#include    <errno.h>
#include    <limits.h>
#include    <stdarg.h>
#include    <stdio.h>
#include    <stdlib.h>
#include    <string.h>
#include    <sys/wait.h>
#include    <signal.h>
#include    <time.h>
#include    <unistd.h>

#include    <isc/commandline.h>

#include    "include/tests/t_api.h"

static char *Usage =    "\t-a               : run all tests\n"
            "\t-b <dir>         : chdir to dir before running tests"
            "\t-c <config_file> : use specified config file\n"
            "\t-d <debug_level> : set debug level to debug_level\n"
            "\t-h               : print test info\n"
            "\t-u               : print usage info\n"
            "\t-n <test_name>   : run specified test name\n"
            "\t-t <test_number> : run specified test number\n"
            "\t-x               : don't execute tests in a subproc\n"
            "\t-q <timeout>     : use 'timeout' as the timeout value\n";
/*
 *      -a      --> run all tests
 *      -b dir      --> chdir to dir before running tests
 *      -c config   --> use config file 'config'
 *      -d      --> turn on api debugging
 *      -h      --> print out available test names
 *      -u      --> print usage info
 *      -n name     --> run test named name
 *      -tn     --> run test n
 *      -x      --> don't execute testcases in a subproc
 *      -q timeout  --> use 'timeout' as the timeout value
 */

#define T_MAXTESTS      256 /* must be 0 mod 8 */
#define T_MAXENV        256
#define T_DEFAULT_CONFIG    "t_config"
#define T_BUFSIZ        256
#define T_BIGBUF        4096

#define T_TCTOUT        60

int     T_debug;
int     T_timeout;
pid_t       T_pid;
static char *T_config;
static char T_tvec[T_MAXTESTS / 8];
static char *T_env[T_MAXENV + 1];
static char T_buf[T_BIGBUF];
static char *T_dir;

static int  t_initconf(char *path);
static int  t_dumpconf(char *path);
static int  t_putinfo(const char *key, const char *info);
static char *t_getdate(char *buf, size_t buflen);
static void printhelp(void);
static void printusage(void);
static void t_sighandler();

static int  T_int;

static void
t_sighandler(int sig) {
    T_int = sig;
}

int
main(int argc, char **argv)
{

    int         c;
    int         tnum;
    int         subprocs;
    pid_t           deadpid;
    int         status;
    int         len;
    int         first;
    testspec_t      *pts;
    struct sigaction    sa;

    first = 1;
    subprocs = 1;
    T_timeout = T_TCTOUT;

    /* -a option is now default */
    memset(T_tvec, 0xffff, sizeof(T_tvec));

    /* parse args */
    while ((c = isc_commandline_parse(argc, argv, ":at:c:d:n:huxq:b:")) != -1) {
        if (c == 'a') {
            /* flag all tests to be run */
            memset(T_tvec, 0xffff, sizeof(T_tvec));
        }
        else if (c == 'b') {
            T_dir = isc_commandline_argument;
        }
        else if (c == 't') {
            tnum = atoi(isc_commandline_argument);
            if ((tnum > 0) && (tnum < T_MAXTESTS)) {
                if (first) {
                    /*
                     * turn off effect of -a default
                     * and allow multiple -t and -n
                     * options
                     */
                    memset(T_tvec, 0, sizeof(T_tvec));
                    first = 0;
                }
                /* flag test tnum to be run */
                tnum -= 1;
                T_tvec[tnum / 8] |= (0x01 << (tnum % 8));
            }
        }
        else if (c == 'c') {
            T_config = isc_commandline_argument;
        }
        else if (c == 'd') {
            T_debug = atoi(isc_commandline_argument);
        }
        else if (c == 'n') {
            pts = &T_testlist[0];
            tnum = 0;
            while (pts->pfv != NULL) {
                if (! strcmp(pts->func_name,
                         isc_commandline_argument)) {
                    if (first) {
                        memset(T_tvec, 0, sizeof(T_tvec));
                        first = 0;
                    }
                    T_tvec[tnum/8] |= (0x01 << (tnum%8));
                    break;
                }
                ++pts;
                ++tnum;
            }
            if (pts->pfv == NULL) {
                fprintf(stderr, "no such test %s\n",
                    isc_commandline_argument);
                exit(1);
            }
        }
        else if (c == 'h') {
            printhelp();
            exit(0);
        }
        else if (c == 'u') {
            printusage();
            exit(0);
        }
        else if (c == 'x') {
            subprocs = 0;
        }
        else if (c == 'q') {
            T_timeout = atoi(isc_commandline_argument);
        }
        else if (c == ':') {
            fprintf(stderr, "Option -%c requires an argument\n",
                        isc_commandline_option);
            exit(1);
        }
        else if (c == '?') {
            fprintf(stderr, "Unrecognized option -%c\n",
                isc_commandline_option);
            exit(1);
        }
    }

    /* set cwd */

    if (T_dir != NULL)
        (void) chdir(T_dir);

    /* we don't want buffered output */

    (void) setbuf(stdout, NULL);
    (void) setbuf(stderr, NULL);

    /* setup signals */

    sa.sa_flags = 0;
    sigfillset(&sa.sa_mask);

#ifdef SIGCHLD
    /*
     * This is mostly here for NetBSD's pthread implementation, until
     * people catch up to the latest unproven-pthread package.
     */
    sa.sa_handler = SIG_DFL;
    (void)sigaction(SIGCHLD, &sa, NULL);
#endif

    sa.sa_handler = t_sighandler;
    (void)sigaction(SIGINT,  &sa, NULL);
    (void)sigaction(SIGALRM, &sa, NULL);

    /* output start stanza to journal */

    sprintf(T_buf, "%s:", argv[0]);
    len = strlen(T_buf);
    (void) t_getdate(T_buf + len, T_BIGBUF - len);
    t_putinfo("S", T_buf);

    /* setup the test environment using the config file */

    if (T_config == NULL)
        T_config = T_DEFAULT_CONFIG;

    t_initconf(T_config);
    if (T_debug)
        t_dumpconf(T_config);

    /* now invoke all the test cases */

    tnum = 0;
    pts = &T_testlist[0];
    while (*pts->pfv != NULL) {
        if (T_tvec[tnum / 8] & (0x01 << (tnum % 8))) {
            if (subprocs) {
                T_pid = fork();
                if (T_pid == 0) {
                    (*pts->pfv)();
                    exit(0);
                }
                else if (T_pid > 0) {

                    T_int = 0;
                    sa.sa_handler = t_sighandler;
                    (void)sigaction(SIGALRM, &sa, NULL);
                    alarm(T_timeout);

                    deadpid = (pid_t) -1;
                    while (deadpid != T_pid) {
                        deadpid = waitpid(T_pid, &status, 0);
                        if (deadpid == T_pid) {
                            if (WIFSIGNALED(status)) {
                                if (WTERMSIG(status) == SIGTERM)
                                    t_info("the test case timed out\n");
                                else
                                    t_info("the test case caused exception %d\n", WTERMSIG(status));
                                t_result(T_UNRESOLVED);
                            }
                        }
                        else if ((deadpid == -1) && (errno == EINTR) && T_int) {
                            kill(T_pid, SIGTERM);
                            T_int = 0;
                        }
                        else if ((deadpid == -1) &&
                             ((errno == ECHILD) || (errno == ESRCH)))
                            break;
                    }

                    alarm(0);
                    sa.sa_handler = SIG_IGN;
                    (void)sigaction(SIGALRM, &sa, NULL);
                }
                else {
                    t_info("fork failed, errno == %d\n", errno);
                    t_result(T_UNRESOLVED);
                }
            }
            else {
                (*pts->pfv)();
            }
        }
        ++pts;
        ++tnum;
    }

    sprintf(T_buf, "%s:", argv[0]);
    len = strlen(T_buf);
    (void) t_getdate(T_buf + len, T_BIGBUF - len);
    t_putinfo("E", T_buf);

    return(0);
}

void
t_assert(const char *component, int anum, int class,
        const char *what, ...)
{
    int n;
    va_list args;

    (void) printf ("T:%s:%d:%s\n", component, anum, class == T_REQUIRED ?
        "A" : "C");

    /* format text to a buffer */
    va_start(args, what);
    n = vsprintf(T_buf, what, args);
    va_end(args);

    (void) t_putinfo("A", T_buf);
    (void) printf("\n");
}

void
t_info(const char *format, ...)
{
    va_list args;

    va_start(args, format);
    (void) vsprintf(T_buf, format, args);
    va_end(args);
    (void) t_putinfo("I", T_buf);
}

void
t_result(int result)
{

    char    *p;

    switch (result) {
        case T_PASS:
            p = "PASS";
            break;
        case T_FAIL:
            p = "FAIL";
            break;
        case T_UNRESOLVED:
            p = "UNRESOLVED";
            break;
        case T_UNSUPPORTED:
            p = "UNSUPPORTED";
            break;
        case T_UNTESTED:
            p = "UNTESTED";
            break;
        default:
            p = "UNKNOWN";
            break;
    }
    printf("R:%s\n", p);
}

char *
t_getenv(const char *name)
{
    char    *n;
    char    **p;
    size_t  len;

    n = NULL;
    if (name && *name) {

        p = &T_env[0];
        len = strlen(name);

        while (*p != NULL) {
            if (strncmp(*p, name, len) == 0) {
                if ( *(*p + len) == '=') {
                    n = *p + len + 1;
                    break;
                }
            }
            ++p;
        }
    }
    return(n);
}

/*
 *
 * read in the config file at path, initializing T_env
 *
 * note: no format checking for now ...
 *
 */

static int
t_initconf(char *path)
{

    int n;
    int rval;
    char    **p;
    FILE    *fp;

    rval = -1;

    fp = fopen(path, "r");
    if (fp != NULL) {
        n = 0;
        p = &T_env[0];
        while (n < T_MAXENV) {
            *p = t_fgetbs(fp);
            if (*p == NULL)
                break;
            if ((**p == '#') || (strchr(*p, '=') == NULL)) {
                /* skip comments and other junk */
                (void) free(*p);
                continue;
            }
            ++p; ++n;
        }
        (void) fclose(fp);
        rval = 0;
    }

    return(rval);
}

/*
 *
 * dump T_env to stdout
 *
 */

static int
t_dumpconf(char *path)
{
    int rval;
    char    **p;
    FILE    *fp;

    rval = -1;
    fp = fopen(path, "r");
    if (fp != NULL) {
        p = &T_env[0];
        while (*p != NULL) {
            printf("C:%s\n", *p);
            ++p;
        }
        (void) fclose(fp);
        rval = 0;
    }
    return(rval);
}

/*
 *
 * read a newline or EOF terminated string from fp
 * on success:
 *  return a malloc'd buf containing the string with
 *  the newline converted to a '\0'.
 * on error:
 *  return NULL
 *
 * caller is responsible for freeing buf
 *
 */

char *
t_fgetbs(FILE *fp)
{

    int c;
    size_t  n;
    size_t  size;
    char    *buf;
    char    *p;

    n   = 0;
    size    = T_BUFSIZ;
    buf = (char *) malloc(T_BUFSIZ * sizeof(char));

    if (buf != NULL) {
        p = buf;
        while ((c = fgetc(fp)) != EOF) {

            if (c == '\n')
                break;

            *p++ = c;
            ++n;
            if ( n >= size ) {
                size += T_BUFSIZ;
                buf = (char *) realloc(buf, size * sizeof(char));
                if (buf == NULL)
                    break;
                p = buf + n;
            }
        }
        *p = '\0';
        return(((c == EOF) && (n == 0)) ? NULL : buf);
    }
    else {
        fprintf(stderr, "malloc failed %d", errno);
        return(NULL);
    }
}

/*
 *
 * put info to log, using key
 * for now, just dump it out.
 * later format into pretty lines
 *
 */

static int
t_putinfo(const char *key, const char *info)
{
    int rval;

    /* for now */
    rval = printf("%s:%s", key, info);
    return(rval);
}

static char *
t_getdate(char *buf, size_t buflen)
{
    size_t      n;
    time_t      t;
    struct tm   *p;

    t = time(NULL);
    p = localtime(&t);
    n = strftime(buf, buflen - 1, "%A %d %B %H:%M:%S %Y\n", p);
    return(n != 0 ? buf : NULL);
}

/* some generally used utilities */

struct dns_errormap {
    isc_result_t    result;
    char        *text;
} dns_errormap[] = {
    { ISC_R_SUCCESS,        "ISC_R_SUCCESS"     },
    { ISC_R_EXISTS,         "ISC_R_EXISTS"      },
    { ISC_R_NOTFOUND,       "ISC_R_NOTFOUND"    },
    { ISC_R_NOSPACE,        "ISC_R_NOSPACE"     },
    { ISC_R_UNEXPECTED,     "ISC_R_UNEXPECTED"  },
    { ISC_R_UNEXPECTEDEND,      "ISC_R_UNEXPECTEDEND"   },
    { DNS_R_LABELTOOLONG,       "DNS_R_LABELTOOLONG"    },
    { DNS_R_BADESCAPE,      "DNS_R_BADESCAPE"   },
    { DNS_R_BADBITSTRING,       "DNS_R_BADBITSTRING"    },
    { DNS_R_BITSTRINGTOOLONG,   "DNS_R_BITSTRINGTOOLONG"},
    { DNS_R_EMPTYLABEL,     "DNS_R_EMPTYLABEL"  },
    { DNS_R_BADDOTTEDQUAD,      "DNS_R_BADDOTTEDQUAD"   },
    { DNS_R_UNKNOWN,        "DNS_R_UNKNOWN"     },
    { DNS_R_BADLABELTYPE,       "DNS_R_BADLABELTYPE"    },
    { DNS_R_BADPOINTER,     "DNS_R_BADPOINTER"  },
    { DNS_R_TOOMANYHOPS,        "DNS_R_TOOMANYHOPS" },
    { DNS_R_DISALLOWED,     "DNS_R_DISALLOWED"  },
    { DNS_R_EXTRATOKEN,     "DNS_R_EXTRATOKEN"  },
    { DNS_R_EXTRADATA,      "DNS_R_EXTRADATA"   },
    { DNS_R_TEXTTOOLONG,        "DNS_R_TEXTTOOLONG" },
    { DNS_R_RANGE,          "DNS_R_RANGE"       },
    { DNS_R_SYNTAX,         "DNS_R_SYNTAX"      },
    { DNS_R_BADCKSUM,       "DNS_R_BADCKSUM"    },
    { DNS_R_BADAAAA,        "DNS_R_BADAAAA"     },
    { DNS_R_NOOWNER,        "DNS_R_NOOWNER"     },
    { DNS_R_NOTTL,          "DNS_R_NOTTL"       },
    { DNS_R_BADCLASS,       "DNS_R_BADCLASS"    },
    { DNS_R_PARTIALMATCH,       "DNS_R_PARTIALMATCH"    },
    { DNS_R_NEWORIGIN,      "DNS_R_NEWORIGIN"   },
    { DNS_R_UNCHANGED,      "DNS_R_UNCHANGED"   },
    { DNS_R_BADTTL,         "DNS_R_BADTTL"      },
    { DNS_R_NOREDATA,       "DNS_R_NOREDATA"    },
    { DNS_R_CONTINUE,       "DNS_R_CONTINUE"    },
    { DNS_R_DELEGATION,     "DNS_R_DELEGATION"  },
    { DNS_R_GLUE,           "DNS_R_GLUE"        },
    { DNS_R_DNAME,          "DNS_R_DNAME"       },
    { DNS_R_CNAME,          "DNS_R_CNAME"       },
    { DNS_R_NXDOMAIN,       "DNS_R_NXDOMAIN"    },
    { DNS_R_NXRRSET,        "DNS_R_NXRRSET"     },
    { DNS_R_BADDB,          "DNS_R_BADDB"       },
    { DNS_R_ZONECUT,        "DNS_R_ZONECUT"     },
    { (isc_result_t)0, NULL }
};

isc_result_t
t_dns_result_fromtext(char *name) {

    isc_result_t        result;
    struct dns_errormap *pmap;

    result = ISC_R_UNEXPECTED;

    pmap = dns_errormap;
    while (pmap->text != NULL) {
        if (strcmp(name, pmap->text) == 0)
            break;
        ++pmap;
    }

    if (pmap->text != NULL)
        result = pmap->result;

    return (result);
}

struct dc_method_map {
    int dc_method;
    char    *text;
} dc_method_map[] = {

    {   DNS_COMPRESS_NONE,  "DNS_COMPRESS_NONE" },
    {   DNS_COMPRESS_GLOBAL14,  "DNS_COMPRESS_GLOBAL14" },
    {   DNS_COMPRESS_GLOBAL16,  "DNS_COMPRESS_GLOBAL16" },
    {   DNS_COMPRESS_GLOBAL,    "DNS_COMPRESS_GLOBAL"   },
    {   DNS_COMPRESS_ALL,   "DNS_COMPRESS_ALL"  },
    {   0,          NULL            }
};

int
t_dc_method_fromtext(char *name) {

    int         dc_method;
    struct dc_method_map    *pmap;

    dc_method = DNS_COMPRESS_NONE;

    pmap = dc_method_map;
    while (pmap->text != NULL) {
        if (strcmp(name, pmap->text) == 0)
            break;
        ++pmap;
    }

    if (pmap->text != NULL)
        dc_method = pmap->dc_method;

    return(dc_method);
}

int
t_bustline(char *line, char **toks) {

    int cnt;
    char    *p;

    cnt = 0;
    if (line && *line) {
        while ((p = strtok(line, "\t")) && (cnt < T_MAXTOKS)) {
            *toks++ = p;
            line = NULL;
            ++cnt;
        }
    }
    return(cnt);
}

static void
printhelp() {
    int     cnt;
    testspec_t  *pts;

    cnt = 1;
    pts = &T_testlist[0];

    printf("Available tests:\n");
    while (pts->func_name) {
        printf("\t%d\t%s\n", cnt, pts->func_name);
        ++pts;
        ++cnt;
    }
}

static void
printusage() {
    printf("Usage:\n%s\n", Usage);
}

int
t_eval(char *filename, int (*func)(char **), int nargs) {


    FILE        *fp;
    char        *p;
    int     line;
    int     cnt;
    int     result;
    int     nfails;
    int     nprobs;
    char        *tokens[T_MAXTOKS + 1];

    nfails = 0;
    nprobs = 0;

    fp = fopen(filename, "r");
    if (fp != NULL) {
        line = 0;
        while ((p = t_fgetbs(fp)) != NULL) {

            ++line;

            /* skip comment lines */
            if ((isspace((int)*p)) || (*p == '#'))
                continue;

            cnt = t_bustline(p, tokens);
            if (cnt == nargs) {
                result = func(tokens);
                if (result != T_PASS) {
                    if (result == T_FAIL)
                        ++nfails;
                    else
                        ++nprobs;
                }
            }
            else {
                t_info("bad format in %s at line %d\n",
                        filename, line);
                ++nprobs;
            }

            (void) free(p);
        }
        (void) fclose(fp);
    }
    else {
        t_info("Missing datafile %s\n", filename);
        ++nprobs;
    }

    result = T_UNRESOLVED;

    if ((nfails == 0) && (nprobs == 0))
        result = T_PASS;
    else if (nfails)
        result = T_FAIL;

    return(result);
}