Annotation of dietlibc/t.c, revision 1.120
1.56 fefe 1: #define _GNU_SOURCE
1.47 fefe 2: #define _FILE_OFFSET_BITS 64
1.1 cvs 3: #include <unistd.h>
4: #include <endian.h>
5: #include <stdlib.h>
6: #include <dirent.h>
7: #include <pwd.h>
1.40 fefe 8: #include <shadow.h>
1.1 cvs 9: #include <stdio.h>
10: #include <assert.h>
11: #include <sys/mount.h>
1.7 fefe 12: #include <time.h>
1.9 fefe 13: #include <sys/stat.h>
1.10 fefe 14: #include <stdio.h>
1.12 fefe 15: #include <arpa/inet.h>
1.13 fefe 16: #include <sys/sem.h>
1.14 fefe 17: #include <sys/shm.h>
1.17 fefe 18: #include <math.h>
1.20 fefe 19: #include <termios.h>
1.22 fefe 20: #include <netdb.h>
1.38 fefe 21: #include <sys/mman.h>
1.45 fefe 22: #include <ctype.h>
1.49 fefe 23: #include <mntent.h>
1.53 fefe 24: #include <regex.h>
1.56 fefe 25: #include <sys/types.h>
26: #include <sys/msg.h>
1.63 fefe 27: #include <string.h>
1.76 fefe 28: #include <sys/socket.h>
29: #include <netdb.h>
1.86 fefe 30: #include <signal.h>
1.88 fefe 31: #include <sys/io.h>
1.97 fefe 32: #include <getopt.h>
1.101 fefe 33: #include <arpa/nameser.h>
34: #include <resolv.h>
1.102 fefe 35: #include <fnmatch.h>
1.109 fefe 36: #include <stdarg.h>
1.118 fefe 37: #include <sys/wait.h>
1.71 fefe 38:
1.109 fefe 39: void fnord(char*x,...) {
40: int i;
41: va_list v;
42: va_start(v,x);
43: for (i=0; i<10; ++i) {
44: char *tmp=va_arg(v,char*);
45: if (!tmp) break;
46: write(1,tmp,strlen(tmp));
47: }
48: }
1.107 fefe 49:
1.116 fefe 50: char *strlcpy2(char *dest, const char *src, size_t n)
51: {
52: memccpy(dest,src,0,n-1);
53: return dest;
54: }
55:
1.97 fefe 56: int main(int argc,char *argv[]) {
1.120 ! fefe 57: #if 0
1.119 fefe 58: char buf[128];
1.120 ! fefe 59: strcpy(buf,"/tmp/fnord/foo.XXXXXXX");
1.119 fefe 60: printf("%d\n",mkdtemp(buf));
61: printf("%s\n",buf);
1.120 ! fefe 62: #endif
1.119 fefe 63: #if 0
1.118 fefe 64: printf("%d\n",WEXITSTATUS(system("exit 17")));
1.119 fefe 65: #endif
1.113 fefe 66: #if 0
1.109 fefe 67: fnord("fnord","foo\n","bar\n",0);
1.112 fefe 68: assert(0);
1.113 fefe 69: #endif
1.105 fefe 70: #if 0
71: printf("%hd %hhd\n",-5,-1234567);
72: #endif
1.103 fefe 73: #if 0
1.102 fefe 74: printf("%d\n",fnmatch("*.o", "x.o", FNM_PATHNAME));
75: printf("%d\n",fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME));
1.103 fefe 76: #endif
1.102 fefe 77: #if 0
1.101 fefe 78: char buf[1024];
79: int len;
80: len=res_search("fu-berlin.de",ns_c_in,ns_t_ns,buf,sizeof(buf));
1.102 fefe 81: #endif
1.114 fefe 82: #if 0
1.100 fefe 83: regex_t t;
84: regmatch_t rm;
1.103 fefe 85: // regcomp(&t,"^ *read",0);
1.113 fefe 86: regcomp(&t,"\\<foo\\>",0);
87: printf("%d\n",regexec(&t," blub foo,",1,&rm,0));
1.100 fefe 88: printf("ofs %d\n",rm.rm_so);
1.101 fefe 89: #endif
1.100 fefe 90: #if 0
1.98 fefe 91: char buf[100];
1.99 fefe 92: printf("%d\n",fread(buf,1,0,stdin));
1.100 fefe 93: #endif
1.99 fefe 94: #if 0
95: char buf[100];
1.98 fefe 96: memset(buf,17,100);
97: buf[0]=0;
98: strncat(buf,"foobarbaz23",10);
99: puts(buf);
1.99 fefe 100: #endif
1.98 fefe 101: #if 0
1.97 fefe 102: int aflag = 0;
103: int bflag = 0;
104: char *cvalue = NULL;
105: int index;
106: int c;
107:
108: opterr = 1;
109:
110: while ((c = getopt (argc, argv, "abc:")) != -1)
111: switch (c)
112: {
113: case 'a':
114: aflag = 1;
115: break;
116: case 'b':
117: bflag = 1;
118: break;
119: case 'c':
120: cvalue = optarg;
121: break;
122: case '?':
123: if (isprint (optopt))
124: fprintf (stderr, "Unknown option `-%c'.\n", optopt);
125: else
126: fprintf (stderr,
127: "Unknown option character `\\x%x'.\n",
128: optopt);
129: return 1;
130: default:
131: abort ();
132: }
1.96 fefe 133:
1.97 fefe 134: printf ("aflag = %d, bflag = %d, cvalue = %s\n",
135: aflag, bflag, cvalue);
136:
137: for (index = optind; index < argc; index++)
138: printf ("Non-option argument %s\n", argv[index]);
139: return 0;
1.98 fefe 140: #endif
1.97 fefe 141: #if 0
1.96 fefe 142: char *t="foobar";
143: char *c;
144: char buf[1000];
145: puts(strcat(strcpy(buf,"HOME="),t));
1.97 fefe 146: #endif
1.89 fefe 147: #if 0
148: struct netent* n=getnetbyname("loopback");
149: printf("%s %s\n",n->n_name,inet_ntoa(*(struct in_addr*)&n->n_net));
150: #endif
151: #if 0
1.88 fefe 152: fprintf(stdout,"foo\n");
153: sleep(1);
154: fprintf(stdout,"bar");
155: fprintf(stderr,"blonk");
156: sleep(1);
157: fprintf(stdout,"\rbz");
158: sleep(1);
159: fprintf(stdout,"\n");
160: sleep(1);
1.89 fefe 161: #endif
1.87 fefe 162: #if 0
1.86 fefe 163: sigset_t s; /* sigsetops */
164:
165: sigemptyset(&s);
166: sigaddset(&s,SIGCHLD);
167: sigaddset(&s,SIGHUP);
168: sigsuspend(&s);
1.87 fefe 169: #endif
1.85 fefe 170: #if 0
1.84 fefe 171: char buf[1024];
172: FILE *f=popen("uname -srm","r");
173: fgets(buf,1023,f);
174: pclose(f);
175: write(1,buf,strlen(buf));
1.85 fefe 176: #endif
1.84 fefe 177: #if 0
1.82 fefe 178: char type[64];
1.83 fefe 179: char filename[256];
180: int major,minor;
1.82 fefe 181: int len;
1.83 fefe 182: printf("%d\n",sscanf("GET / HTTP/1.0\r\n","%4[A-Z] %255[^ \t\r\n] HTTP/%d.%d",type,filename,&major,&minor));
183: printf("%s %s %d %d\n",type,filename,major,minor);
1.84 fefe 184: #endif
1.82 fefe 185: #if 0
1.81 fefe 186: char buf[100];
187: char ip[16];
188: memset(ip,0,16);
189: printf("%p %p\n",inet_ntop(AF_INET6,ip,buf,100),buf);
190: puts(buf);
1.82 fefe 191: #endif
1.107 fefe 192: #if 0
1.76 fefe 193: struct addrinfo *ai;
1.78 fefe 194: struct addrinfo hints;
1.79 fefe 195: char buf[16];
1.78 fefe 196: hints.ai_family = AF_UNSPEC;
1.79 fefe 197: hints.ai_flags = AI_PASSIVE|AI_CANONNAME;
1.78 fefe 198: hints.ai_socktype = SOCK_STREAM;
1.106 fefe 199: printf("%d\n",getaddrinfo("ftp.fu-berlin.de","ftp",0,&ai));
1.76 fefe 200: while (ai) {
201: printf("found host %s, port %d, family %s, socktype %s\n",ai->ai_canonname,
202: ntohs(ai->ai_family==AF_INET6?((struct sockaddr_in6*)ai->ai_addr)->sin6_port:
203: ((struct sockaddr_in*)ai->ai_addr)->sin_port),
204: ai->ai_family==AF_INET6?"PF_INET6":"PF_INET",
205: ai->ai_socktype==SOCK_STREAM?"SOCK_STREAM":"SOCK_DGRAM");
1.80 fefe 206: {
207: char buf[100];
208: inet_ntop(ai->ai_family,ai->ai_family==AF_INET6?
209: (char*)&(((struct sockaddr_in6*)ai->ai_addr)->sin6_addr):
210: (char*)&(((struct sockaddr_in*)ai->ai_addr)->sin_addr),buf,100);
211: printf(" %s\n",buf);
212: }
1.76 fefe 213: ai=ai->ai_next;
214: }
1.81 fefe 215: #endif
1.76 fefe 216: #if 0
1.71 fefe 217: int i=foo;
1.75 fefe 218: printf("load average is %3.2f\n",0.0);
1.76 fefe 219: #endif
1.70 fefe 220: #if 0
1.69 fefe 221: struct dirent **namelist;
222: int n;
1.16 fefe 223:
1.69 fefe 224: n = scandir(".", &namelist, 0, alphasort);
225: if (n < 0)
226: perror("scandir");
227: else {
228: while(n--) {
229: printf("%s\n", namelist[n]->d_name);
230: free(namelist[n]);
231: }
232: free(namelist);
233: }
1.70 fefe 234: #endif
1.68 fefe 235: #if 0
1.67 fefe 236: char foo[10]="none,zlib";
237: char *tmp,*tmp2=foo;
238: while (tmp=strsep(&tmp2,",")) {
239: puts(tmp);
240: }
1.68 fefe 241: #endif
1.65 fefe 242: #if 0
1.61 fefe 243: char foo[10];
1.64 fefe 244: printf("%d %d\n",abs(-3),abs(23));
1.63 fefe 245: strcpy(foo,"foo");
246: strncat(foo,"barbaz",3);
247: foo[6]=0;
248: puts(foo);
1.65 fefe 249: #endif
1.115 fefe 250: #if 0
1.58 fefe 251: struct hostent * host;
252: struct in_addr i;
1.57 fefe 253:
1.110 fefe 254: host = gethostbyname2("knuth",AF_INET);
1.57 fefe 255:
1.58 fefe 256: if (!host)
257: printf("host null\n");
1.57 fefe 258:
1.58 fefe 259: if (host && host->h_name) {
260: printf("name %s\n", host->h_name);
261: }
262: if (host && (host->h_addr_list)[0]) {
263: struct in_addr address;
264: address = *((struct in_addr *) (host->h_addr_list)[0]);
265: printf("addr %s\n", inet_ntoa(address));
266: }
1.59 fefe 267: #endif
1.57 fefe 268: #if 0
1.56 fefe 269: struct msgbuf bla;
270: bla.mtype=0;
271: bla.mtext[0]='x';
272: msgsnd(327680,&bla,5,IPC_NOWAIT);
1.57 fefe 273: #endif
1.55 fefe 274: #if 0
1.54 fefe 275: char buf[PATH_MAX];
276: printf("%s\n",realpath("../../incoming/..///.zshrc",buf));
1.55 fefe 277: #endif
1.73 fefe 278: #if 0
1.53 fefe 279: regex_t t;
1.68 fefe 280: regcomp(&t,"^OpenSSH_2\\.5\\.[012]",5);
1.65 fefe 281: printf("%d\n",regexec(&t,"OpenSSH_2.5.2p2",0,0,0));
1.56 fefe 282: #endif
1.53 fefe 283: #if 0
1.52 fefe 284: float my_float = 9.2334;
285: char buffer[100];
286:
287: sprintf(buffer, "%.2f", my_float);
288: fprintf(stdout, "%s", buffer);
1.53 fefe 289: #endif
1.52 fefe 290: #if 0
1.51 fefe 291: printf("%d\n",setenv("foo","bar",0));
292: printf("%d\n",setenv("foo","bar",1));
293: execlp("printenv","printenv","foo",0);
1.52 fefe 294: #endif
1.106 fefe 295: #if 0
1.59 fefe 296: printf("%d\n",fnmatch("*c*","bin",0));
1.50 fefe 297: if (!fnmatch("s*", "sub", 0))
298: printf("s* sub\n");
299: if (!fnmatch("s*", "glob", 0))
300: printf("s* glob\n");
301: if (!fnmatch("s*b", "sub", 0))
302: printf("s*b sub\n");
303: if (!fnmatch("s*h", "sub", 0))
304: printf("s*h sub\n");
1.51 fefe 305: #endif
1.49 fefe 306: #if 0
1.48 fefe 307: char*tmp;
308: int n=asprintf(&tmp,"foo %s %d\n","bar",23);
309: write(1,tmp,n);
310: free(tmp);
1.49 fefe 311: #endif
1.41 fefe 312: #if 0
1.40 fefe 313: struct passwd *p=getpwnam("leitner");
1.41 fefe 314: struct spwd *s=getspnam("leitner");
1.39 fefe 315: printf("%g\n",30.0123);
1.41 fefe 316: #endif
1.43 fefe 317: #if 0
1.42 fefe 318: initgroups("root",100);
1.43 fefe 319: #endif
1.38 fefe 320: #if 0
1.37 fefe 321: time_t t=time(0);
322: puts(asctime(localtime(&t)));
1.38 fefe 323: #endif
1.37 fefe 324: #if 0
1.36 fefe 325: struct servent *foo=getservbyname("ident","tcp");
326: if (foo)
327: printf("found service %s on port %d\n",foo->s_name,foo->s_port);
1.37 fefe 328: #endif
1.120 ! fefe 329: #if 1
1.33 fefe 330: char buf[128];
1.120 ! fefe 331: strcpy(buf,"/tmp/blub/foo.XXXXXXX");
1.33 fefe 332: printf("%d\n",mkstemp(buf));
1.34 fefe 333: printf("%s\n",buf);
334: unlink(buf);
1.35 fefe 335: #endif
1.33 fefe 336: #if 0
1.32 fefe 337: char buf[512]="foo";
338: strncat(buf,"barbaz",3);
339: puts(buf);
1.33 fefe 340: #endif
1.32 fefe 341: #if 0
1.31 fefe 342: time_t oink=time(0);
343: struct tm *duh=localtime(&oink);
344: strftime(buf,512,"%A %B %Y\n",duh);
345: puts(buf);
1.32 fefe 346: #endif
1.116 fefe 347: #if 0
1.28 fefe 348: struct in_addr bar;
349: struct hostent *foo;
1.29 fefe 350: /* inet_aton("160.45.10.8",&bar); */
351: foo=gethostbyname("zeit.fu-berlin.de");
352: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 353: if (foo)
354: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 355: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 356: #endif
1.18 fefe 357: #if 0
1.17 fefe 358: double d=0.0;
359: long long t=0x12345678ABCDEF01;
360: d/=0.0;
361: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 362: #endif
1.17 fefe 363: #if 0
1.16 fefe 364: int i,j;
365: long a,b,c;
366: int *res;
367: printf("%p\n",malloc(0));
368: qsort(array,2,sizeof(int),compint);
369: for (i=0; i<SIZE; ++i)
370: array[i]=rand();
371: rdtscl(a);
372: qsort(array,SIZE,sizeof(int),compint);
373: rdtscl(b);
374: j=array[LOOKFOR];
375: res=bsearch(&j,array,SIZE,sizeof(int),compint);
376: rdtscl(c);
377: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
378: for (i=0; i<SIZE-1; ++i)
379: if (array[i]>array[i+1]) {
380: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
381: return 1;
382: }
383: if (*res!=j)
384: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
385: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 386: #endif
1.13 fefe 387: #if 0
1.12 fefe 388: struct in_addr duh;
389: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
390: printf("%x\n",duh.s_addr);
1.13 fefe 391: #endif
1.12 fefe 392: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 393: #if 0
1.10 fefe 394: char buf[100];
395: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
396: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 397: #endif
1.9 fefe 398: #if 0
1.7 fefe 399: struct tm duh;
400: time_t t;
1.8 fefe 401: time(&t);
402: gmtime_r(&t,&duh);
403: printf("%s\n",asctime(&duh));
1.9 fefe 404: #endif
1.8 fefe 405: #if 0
1.7 fefe 406: char buf[30];
407: duh.tm_sec=42;
408: duh.tm_min=23;
409: duh.tm_hour=17;
410: duh.tm_mday=2;
411: duh.tm_mon=7;
412: duh.tm_year=100;
413: t=mktime(&duh);
414: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 415: #endif
1.2 fefe 416: #if 0
1.1 cvs 417: int i;
418: for (i=0; i<5; i++) {
419: fprintf(stdout,"first message\n");
420: fprintf(stdout,"second message\n");
421: fprintf(stdout,"third message\n");
422: printf("foo %d\n",i);
423: }
1.2 fefe 424: #endif
1.1 cvs 425: #if 0
426: char buf[1024];
427: sscanf("foo bar","%s",buf);
428: printf("%s\n",buf);
429: #endif
430: #if 0
431: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
432: perror("mount");
433: #endif
434: #if 0
435: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
436: int i=strtol(t+1,&t,10);
437: printf("%d %s\n",i,t);
438: #endif
439: #if 0
440: char **tmp;
1.115 fefe 441: putenv("A=foo");
1.1 cvs 442: for (tmp=environ; *tmp; tmp++)
443: puts(*tmp);
444: #endif
445: #if 0
446: char buf[1024];
447: printf("%d\n",fprintf(stderr,"duh\n"));
448: #endif
449: #if 0
450: struct passwd *p=getpwuid(100);
451: puts(p->pw_name);
452: #endif
453: #if 0
454: int pid;
455: char name[32];
456: sscanf("1 (init","%d (%15c",&pid,name);
457: printf("pid %d name %s\n",pid,name);
458: #endif
1.109 fefe 459: #if 0
1.1 cvs 460: DIR *d=opendir("/proc");
461: if (d) {
462: struct dirent *D;
463: while (D=readdir(d))
464: puts(D->d_name);
465: closedir(d);
466: }
467: #endif
468: #if 0
469: char buf[1024];
470: int fd=open("/etc/passwd",0);
471: pread(fd,buf,30,32);
472: close(fd);
473: write(1,buf,32);
474: #endif
475: #if 0
476: char *argv[] = {"echo","foo",0};
477: char buf[100];
478: buf[5]='x';
479: sprintf(buf,"foo\n");
480: if (buf[5] == 'x')
481: exit(0);
482: else
483: exit(1);
484: execvp(argv[0],argv);
485: #endif
1.10 fefe 486: #if 0
1.1 cvs 487: struct stat64 f;
488: char buf[128];
489: fstat64(0,&f);
490: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
491: return 0;
492: #endif
493: #if 0
494: FILE *f=fopen("foo","w");
495: fputc('a',f);
496: fputc('b',f);
497: fputc('c',f);
498: #endif
499: /* fprintf(stdout,"foo\n"); */
500: }
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