sal/workben/tgetpwnam.cxx

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  27
  28 // MARKER(update_precomp.py): autogen include statement, do not remove
  29 #include "precompiled_sal.hxx"
  30
  31 #include <pwd.h>
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <time.h>
  35 #include <pthread.h>
  36 #include <netdb.h>
  37 #include <sys/socket.h>
  38 #include <netinet/in.h>
  39 #include <arpa/inet.h>
  40 #ifndef NETBSD
  41 #include <shadow.h>
  42 #endif
  43
  44 /* exercises some reentrant libc-fucntions */
  45
  46 extern "C"
  47 {
  48     struct tm *localtime_r(const time_t *timep, struct tm *buffer);
  49     struct passwd* getpwnam_r(char*, struct passwd*, char *, int);
  50     struct spwd* getspnam_r(char*, struct spwd*, char *, int);
  51     struct hostent *gethostbyname_r(const char *name, struct hostent *result,
  52                                     char *buffer, int buflen, int *h_errnop);
  53 }
  54
  55 static int go;
  56
  57
  58
  59 extern "C" void *workfunc1(void*)
  60 {
  61     char buffer[256];
  62     struct tm       sttm;
  63     time_t          nepoch;
  64     struct passwd   stpwd;
  65     struct hostent  sthostent;
  66     int             nerr;
  67
  68     printf("starting thread 1 ...\n");
  69     while (go) {
  70         getpwnam_r("hr", &stpwd, buffer, sizeof(buffer));
  71         gethostbyname_r("blauwal", &sthostent, buffer, sizeof(buffer), &nerr);
  72         time(&nepoch);
  73         localtime_r(&nepoch, &sttm);
  74     }
  75     return 0;
  76 }
  77
  78 extern "C" void *workfunc2(void*)
  79 {
  80     char buffer[256];
  81     struct tm       sttm;
  82     time_t          nepoch;
  83     struct passwd   stpwd;
  84     struct hostent  sthostent;
  85     int             nerr;
  86
  87     printf("starting thread 2 ...\n");
  88     while(go) {
  89         getpwnam_r("mh", &stpwd, buffer, sizeof(buffer));
  90         gethostbyname_r("hr-1242", &sthostent, buffer, sizeof(buffer), &nerr);
  91         time(&nepoch);
  92         localtime_r(&nepoch, &sttm);
  93     }
  94     return 0;
  95 }
  96
  97
  98 extern int h_errno;
  99
 100 int main(int argc, char *argv[])
 101 {
 102     char buffer[256];
 103     struct tm       *ptm;
 104     time_t          nepoch;
 105     struct passwd   *pwd, *pres1;
 106 #ifndef NETBSD
 107     struct spwd     *spwd, *pres2;
 108 #endif
 109     struct hostent  *phostent, *pres3;
 110     char **p;
 111
 112     pthread_t       tid1,tid2;
 113     int             res1,res2;
 114
 115     go = 1;
 116
 117     pthread_create(&tid1, NULL, workfunc1, &res1);
 118     pthread_create(&tid2, NULL, workfunc2, &res2);
 119
 120     pwd = (struct passwd*)malloc(sizeof(struct passwd));
 121
 122     pres1 = getpwnam_r("hr", pwd, buffer, sizeof(buffer));
 123
 124     sleep(3);
 125
 126     if (pres1) {
 127         printf("Name: %s\n", pwd->pw_name);
 128         printf("Passwd: %s\n", pwd->pw_passwd);
 129         printf("Uid: %d\n", pwd->pw_uid);
 130         printf("Gid: %d\n", pwd->pw_gid);
 131 #ifdef NETBSD
 132         printf("Change: %s", ctime(&pwd->pw_change));
 133         printf("Class: %s\n", pwd->pw_class);
 134 #else
 135         printf("Age: %s\n", pwd->pw_age);
 136         printf("Comment: %s\n", pwd->pw_comment);
 137 #endif
 138         printf("Gecos: %s\n", pwd->pw_gecos);
 139         printf("Dir: %s\n", pwd->pw_dir);
 140         printf("Shell: %s\n", pwd->pw_shell);
 141     }
 142     else
 143         printf("getpwnam_r() failed!\n");
 144
 145     free(pwd);
 146
 147 #ifndef NETBSD
 148     spwd = (struct spwd*)malloc(sizeof(struct spwd));
 149
 150     pres2 = getspnam_r("hr", spwd, buffer, sizeof(buffer));
 151
 152     if (pres2) {
 153         printf("Name: %s\n", spwd->sp_namp);
 154         printf("Passwd: %s\n", spwd->sp_pwdp);
 155         printf("Last Change: %ld\n", spwd->sp_lstchg);
 156         printf("Min: %ld\n", spwd->sp_min);
 157         printf("Max: %ld\n", spwd->sp_max);
 158     }
 159     else
 160         printf("getspnam_r() failed!\n");
 161
 162     free(spwd);
 163 #endif
 164
 165     ptm = (struct tm*)malloc(sizeof(struct tm));
 166
 167     time(&nepoch);
 168     localtime_r(&nepoch, ptm);
 169
 170     printf("Seconds: %d\n", ptm->tm_sec);
 171     printf("Minutes: %d\n", ptm->tm_min);
 172     printf("Hour: %d\n", ptm->tm_hour);
 173     printf("Day of Month: %d\n", ptm->tm_mday);
 174     printf("Month: %d\n", ptm->tm_mon);
 175     printf("Year: %d\n", ptm->tm_year);
 176     printf("Day of week: %d\n", ptm->tm_wday);
 177     printf("Day in the year: %d\n", ptm->tm_yday);
 178     printf("Daylight saving time: %d\n", ptm->tm_isdst);
 179 #ifdef NETBSD
 180     printf("Timezone: %s\n", ptm->tm_zone);
 181 #else
 182     printf("Timezone: %s\n", ptm->tm_name);
 183 #endif
 184
 185     free(ptm);
 186
 187     phostent = (struct hostent*)malloc(sizeof(struct hostent));
 188
 189     pres3 = gethostbyname_r("blauwal", phostent, buffer, sizeof(buffer), h_errno);
 190
 191     if (pres3) {
 192         printf("Official Hostname: %s\n", phostent->h_name);
 193         for ( p = phostent->h_aliases; *p != NULL; p++ )
 194             printf("Alias: %s\n", *p);
 195         printf("Addresstype: %d\n", phostent->h_addrtype);
 196         printf("Address length: %d\n", phostent->h_length);
 197         if ( phostent->h_addrtype == AF_INET ) {
 198             for ( p = phostent->h_addr_list; *p != NULL; *p++ )
 199                 printf("Address: %s\n", inet_ntoa(**((in_addr**)p)));
 200         }
 201     }
 202
 203
 204     /* test boundary conditions */
 205     char smallbuf[23]; /* buffer to small */
 206     pres3 = gethostbyname_r("blauwal", phostent, smallbuf, sizeof(smallbuf), h_errno);
 207     if (!pres3) {
 208         perror("Expect ERANGE");
 209     }
 210     else
 211     {
 212         printf("ERROR: Check for buffersize went wrong\n");
 213     }
 214
 215 #ifdef NETBSD
 216     char exactbuf[35];
 217 #else
 218     char exactbuf[24]; /* should be exact the necessary size */
 219 #endif
 220     pres3 = gethostbyname_r("blauwal", phostent, exactbuf, sizeof(exactbuf), &h_errno);
 221     if (!pres3) {
 222         perror("Check with exact buffersize");
 223     }
 224     else
 225     {
 226         printf("Boundary check ok\n");
 227     }
 228
 229     /* test error conditions */
 230     pres3 = gethostbyname_r("nohost", phostent, buffer, sizeof(buffer), &h_errno);
 231     if (!pres3) {
 232         herror("Expect HOST_NOT_FOUND");
 233     }
 234     else
 235     {
 236         printf("failed to detect non existant host\n");
 237     }
 238
 239     free(phostent);
 240     go = 0; /* atomic enough for our purposes */
 241
 242     pthread_join(tid1, NULL);
 243     pthread_join(tid2, NULL);
 244
 245     exit(0);
 246 }
 247
 248