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