Annotation of dietlibc/t.c, revision 1.117
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>
1.71 fefe 37:
1.109 fefe 38: void fnord(char*x,...) {
39: int i;
40: va_list v;
41: va_start(v,x);
42: for (i=0; i<10; ++i) {
43: char *tmp=va_arg(v,char*);
44: if (!tmp) break;
45: write(1,tmp,strlen(tmp));
46: }
47: }
1.107 fefe 48:
1.116 fefe 49: char *strlcpy2(char *dest, const char *src, size_t n)
50: {
51: memccpy(dest,src,0,n-1);
52: return dest;
53: }
54:
1.97 fefe 55: int main(int argc,char *argv[]) {
1.117 ! fefe 56: FILE *f=popen("id","r");
! 57: char buf[1024];
! 58: fgets(buf,1024,f);
! 59: write(1,buf,strlen(buf));
1.113 fefe 60: #if 0
1.109 fefe 61: fnord("fnord","foo\n","bar\n",0);
1.112 fefe 62: assert(0);
1.113 fefe 63: #endif
1.105 fefe 64: #if 0
65: printf("%hd %hhd\n",-5,-1234567);
66: #endif
1.103 fefe 67: #if 0
1.102 fefe 68: printf("%d\n",fnmatch("*.o", "x.o", FNM_PATHNAME));
69: printf("%d\n",fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME));
1.103 fefe 70: #endif
1.102 fefe 71: #if 0
1.101 fefe 72: char buf[1024];
73: int len;
74: len=res_search("fu-berlin.de",ns_c_in,ns_t_ns,buf,sizeof(buf));
1.102 fefe 75: #endif
1.114 fefe 76: #if 0
1.100 fefe 77: regex_t t;
78: regmatch_t rm;
1.103 fefe 79: // regcomp(&t,"^ *read",0);
1.113 fefe 80: regcomp(&t,"\\<foo\\>",0);
81: printf("%d\n",regexec(&t," blub foo,",1,&rm,0));
1.100 fefe 82: printf("ofs %d\n",rm.rm_so);
1.101 fefe 83: #endif
1.100 fefe 84: #if 0
1.98 fefe 85: char buf[100];
1.99 fefe 86: printf("%d\n",fread(buf,1,0,stdin));
1.100 fefe 87: #endif
1.99 fefe 88: #if 0
89: char buf[100];
1.98 fefe 90: memset(buf,17,100);
91: buf[0]=0;
92: strncat(buf,"foobarbaz23",10);
93: puts(buf);
1.99 fefe 94: #endif
1.98 fefe 95: #if 0
1.97 fefe 96: int aflag = 0;
97: int bflag = 0;
98: char *cvalue = NULL;
99: int index;
100: int c;
101:
102: opterr = 1;
103:
104: while ((c = getopt (argc, argv, "abc:")) != -1)
105: switch (c)
106: {
107: case 'a':
108: aflag = 1;
109: break;
110: case 'b':
111: bflag = 1;
112: break;
113: case 'c':
114: cvalue = optarg;
115: break;
116: case '?':
117: if (isprint (optopt))
118: fprintf (stderr, "Unknown option `-%c'.\n", optopt);
119: else
120: fprintf (stderr,
121: "Unknown option character `\\x%x'.\n",
122: optopt);
123: return 1;
124: default:
125: abort ();
126: }
1.96 fefe 127:
1.97 fefe 128: printf ("aflag = %d, bflag = %d, cvalue = %s\n",
129: aflag, bflag, cvalue);
130:
131: for (index = optind; index < argc; index++)
132: printf ("Non-option argument %s\n", argv[index]);
133: return 0;
1.98 fefe 134: #endif
1.97 fefe 135: #if 0
1.96 fefe 136: char *t="foobar";
137: char *c;
138: char buf[1000];
139: puts(strcat(strcpy(buf,"HOME="),t));
1.97 fefe 140: #endif
1.89 fefe 141: #if 0
142: struct netent* n=getnetbyname("loopback");
143: printf("%s %s\n",n->n_name,inet_ntoa(*(struct in_addr*)&n->n_net));
144: #endif
145: #if 0
1.88 fefe 146: fprintf(stdout,"foo\n");
147: sleep(1);
148: fprintf(stdout,"bar");
149: fprintf(stderr,"blonk");
150: sleep(1);
151: fprintf(stdout,"\rbz");
152: sleep(1);
153: fprintf(stdout,"\n");
154: sleep(1);
1.89 fefe 155: #endif
1.87 fefe 156: #if 0
1.86 fefe 157: sigset_t s; /* sigsetops */
158:
159: sigemptyset(&s);
160: sigaddset(&s,SIGCHLD);
161: sigaddset(&s,SIGHUP);
162: sigsuspend(&s);
1.87 fefe 163: #endif
1.85 fefe 164: #if 0
1.84 fefe 165: char buf[1024];
166: FILE *f=popen("uname -srm","r");
167: fgets(buf,1023,f);
168: pclose(f);
169: write(1,buf,strlen(buf));
1.85 fefe 170: #endif
1.84 fefe 171: #if 0
1.82 fefe 172: char type[64];
1.83 fefe 173: char filename[256];
174: int major,minor;
1.82 fefe 175: int len;
1.83 fefe 176: printf("%d\n",sscanf("GET / HTTP/1.0\r\n","%4[A-Z] %255[^ \t\r\n] HTTP/%d.%d",type,filename,&major,&minor));
177: printf("%s %s %d %d\n",type,filename,major,minor);
1.84 fefe 178: #endif
1.82 fefe 179: #if 0
1.81 fefe 180: char buf[100];
181: char ip[16];
182: memset(ip,0,16);
183: printf("%p %p\n",inet_ntop(AF_INET6,ip,buf,100),buf);
184: puts(buf);
1.82 fefe 185: #endif
1.107 fefe 186: #if 0
1.76 fefe 187: struct addrinfo *ai;
1.78 fefe 188: struct addrinfo hints;
1.79 fefe 189: char buf[16];
1.78 fefe 190: hints.ai_family = AF_UNSPEC;
1.79 fefe 191: hints.ai_flags = AI_PASSIVE|AI_CANONNAME;
1.78 fefe 192: hints.ai_socktype = SOCK_STREAM;
1.106 fefe 193: printf("%d\n",getaddrinfo("ftp.fu-berlin.de","ftp",0,&ai));
1.76 fefe 194: while (ai) {
195: printf("found host %s, port %d, family %s, socktype %s\n",ai->ai_canonname,
196: ntohs(ai->ai_family==AF_INET6?((struct sockaddr_in6*)ai->ai_addr)->sin6_port:
197: ((struct sockaddr_in*)ai->ai_addr)->sin_port),
198: ai->ai_family==AF_INET6?"PF_INET6":"PF_INET",
199: ai->ai_socktype==SOCK_STREAM?"SOCK_STREAM":"SOCK_DGRAM");
1.80 fefe 200: {
201: char buf[100];
202: inet_ntop(ai->ai_family,ai->ai_family==AF_INET6?
203: (char*)&(((struct sockaddr_in6*)ai->ai_addr)->sin6_addr):
204: (char*)&(((struct sockaddr_in*)ai->ai_addr)->sin_addr),buf,100);
205: printf(" %s\n",buf);
206: }
1.76 fefe 207: ai=ai->ai_next;
208: }
1.81 fefe 209: #endif
1.76 fefe 210: #if 0
1.71 fefe 211: int i=foo;
1.75 fefe 212: printf("load average is %3.2f\n",0.0);
1.76 fefe 213: #endif
1.70 fefe 214: #if 0
1.69 fefe 215: struct dirent **namelist;
216: int n;
1.16 fefe 217:
1.69 fefe 218: n = scandir(".", &namelist, 0, alphasort);
219: if (n < 0)
220: perror("scandir");
221: else {
222: while(n--) {
223: printf("%s\n", namelist[n]->d_name);
224: free(namelist[n]);
225: }
226: free(namelist);
227: }
1.70 fefe 228: #endif
1.68 fefe 229: #if 0
1.67 fefe 230: char foo[10]="none,zlib";
231: char *tmp,*tmp2=foo;
232: while (tmp=strsep(&tmp2,",")) {
233: puts(tmp);
234: }
1.68 fefe 235: #endif
1.65 fefe 236: #if 0
1.61 fefe 237: char foo[10];
1.64 fefe 238: printf("%d %d\n",abs(-3),abs(23));
1.63 fefe 239: strcpy(foo,"foo");
240: strncat(foo,"barbaz",3);
241: foo[6]=0;
242: puts(foo);
1.65 fefe 243: #endif
1.115 fefe 244: #if 0
1.58 fefe 245: struct hostent * host;
246: struct in_addr i;
1.57 fefe 247:
1.110 fefe 248: host = gethostbyname2("knuth",AF_INET);
1.57 fefe 249:
1.58 fefe 250: if (!host)
251: printf("host null\n");
1.57 fefe 252:
1.58 fefe 253: if (host && host->h_name) {
254: printf("name %s\n", host->h_name);
255: }
256: if (host && (host->h_addr_list)[0]) {
257: struct in_addr address;
258: address = *((struct in_addr *) (host->h_addr_list)[0]);
259: printf("addr %s\n", inet_ntoa(address));
260: }
1.59 fefe 261: #endif
1.57 fefe 262: #if 0
1.56 fefe 263: struct msgbuf bla;
264: bla.mtype=0;
265: bla.mtext[0]='x';
266: msgsnd(327680,&bla,5,IPC_NOWAIT);
1.57 fefe 267: #endif
1.55 fefe 268: #if 0
1.54 fefe 269: char buf[PATH_MAX];
270: printf("%s\n",realpath("../../incoming/..///.zshrc",buf));
1.55 fefe 271: #endif
1.73 fefe 272: #if 0
1.53 fefe 273: regex_t t;
1.68 fefe 274: regcomp(&t,"^OpenSSH_2\\.5\\.[012]",5);
1.65 fefe 275: printf("%d\n",regexec(&t,"OpenSSH_2.5.2p2",0,0,0));
1.56 fefe 276: #endif
1.53 fefe 277: #if 0
1.52 fefe 278: float my_float = 9.2334;
279: char buffer[100];
280:
281: sprintf(buffer, "%.2f", my_float);
282: fprintf(stdout, "%s", buffer);
1.53 fefe 283: #endif
1.52 fefe 284: #if 0
1.51 fefe 285: printf("%d\n",setenv("foo","bar",0));
286: printf("%d\n",setenv("foo","bar",1));
287: execlp("printenv","printenv","foo",0);
1.52 fefe 288: #endif
1.106 fefe 289: #if 0
1.59 fefe 290: printf("%d\n",fnmatch("*c*","bin",0));
1.50 fefe 291: if (!fnmatch("s*", "sub", 0))
292: printf("s* sub\n");
293: if (!fnmatch("s*", "glob", 0))
294: printf("s* glob\n");
295: if (!fnmatch("s*b", "sub", 0))
296: printf("s*b sub\n");
297: if (!fnmatch("s*h", "sub", 0))
298: printf("s*h sub\n");
1.51 fefe 299: #endif
1.49 fefe 300: #if 0
1.48 fefe 301: char*tmp;
302: int n=asprintf(&tmp,"foo %s %d\n","bar",23);
303: write(1,tmp,n);
304: free(tmp);
1.49 fefe 305: #endif
1.41 fefe 306: #if 0
1.40 fefe 307: struct passwd *p=getpwnam("leitner");
1.41 fefe 308: struct spwd *s=getspnam("leitner");
1.39 fefe 309: printf("%g\n",30.0123);
1.41 fefe 310: #endif
1.43 fefe 311: #if 0
1.42 fefe 312: initgroups("root",100);
1.43 fefe 313: #endif
1.38 fefe 314: #if 0
1.37 fefe 315: time_t t=time(0);
316: puts(asctime(localtime(&t)));
1.38 fefe 317: #endif
1.37 fefe 318: #if 0
1.36 fefe 319: struct servent *foo=getservbyname("ident","tcp");
320: if (foo)
321: printf("found service %s on port %d\n",foo->s_name,foo->s_port);
1.37 fefe 322: #endif
1.35 fefe 323: #if 0
1.33 fefe 324: char buf[128];
325: strcpy(buf,"/tmp/foo.XXXXXXX");
326: printf("%d\n",mkstemp(buf));
1.34 fefe 327: printf("%s\n",buf);
328: unlink(buf);
1.35 fefe 329: #endif
1.33 fefe 330: #if 0
1.32 fefe 331: char buf[512]="foo";
332: strncat(buf,"barbaz",3);
333: puts(buf);
1.33 fefe 334: #endif
1.32 fefe 335: #if 0
1.31 fefe 336: time_t oink=time(0);
337: struct tm *duh=localtime(&oink);
338: strftime(buf,512,"%A %B %Y\n",duh);
339: puts(buf);
1.32 fefe 340: #endif
1.116 fefe 341: #if 0
1.28 fefe 342: struct in_addr bar;
343: struct hostent *foo;
1.29 fefe 344: /* inet_aton("160.45.10.8",&bar); */
345: foo=gethostbyname("zeit.fu-berlin.de");
346: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 347: if (foo)
348: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 349: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 350: #endif
1.18 fefe 351: #if 0
1.17 fefe 352: double d=0.0;
353: long long t=0x12345678ABCDEF01;
354: d/=0.0;
355: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 356: #endif
1.17 fefe 357: #if 0
1.16 fefe 358: int i,j;
359: long a,b,c;
360: int *res;
361: printf("%p\n",malloc(0));
362: qsort(array,2,sizeof(int),compint);
363: for (i=0; i<SIZE; ++i)
364: array[i]=rand();
365: rdtscl(a);
366: qsort(array,SIZE,sizeof(int),compint);
367: rdtscl(b);
368: j=array[LOOKFOR];
369: res=bsearch(&j,array,SIZE,sizeof(int),compint);
370: rdtscl(c);
371: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
372: for (i=0; i<SIZE-1; ++i)
373: if (array[i]>array[i+1]) {
374: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
375: return 1;
376: }
377: if (*res!=j)
378: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
379: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 380: #endif
1.13 fefe 381: #if 0
1.12 fefe 382: struct in_addr duh;
383: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
384: printf("%x\n",duh.s_addr);
1.13 fefe 385: #endif
1.12 fefe 386: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 387: #if 0
1.10 fefe 388: char buf[100];
389: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
390: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 391: #endif
1.9 fefe 392: #if 0
1.7 fefe 393: struct tm duh;
394: time_t t;
1.8 fefe 395: time(&t);
396: gmtime_r(&t,&duh);
397: printf("%s\n",asctime(&duh));
1.9 fefe 398: #endif
1.8 fefe 399: #if 0
1.7 fefe 400: char buf[30];
401: duh.tm_sec=42;
402: duh.tm_min=23;
403: duh.tm_hour=17;
404: duh.tm_mday=2;
405: duh.tm_mon=7;
406: duh.tm_year=100;
407: t=mktime(&duh);
408: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 409: #endif
1.2 fefe 410: #if 0
1.1 cvs 411: int i;
412: for (i=0; i<5; i++) {
413: fprintf(stdout,"first message\n");
414: fprintf(stdout,"second message\n");
415: fprintf(stdout,"third message\n");
416: printf("foo %d\n",i);
417: }
1.2 fefe 418: #endif
1.1 cvs 419: #if 0
420: char buf[1024];
421: sscanf("foo bar","%s",buf);
422: printf("%s\n",buf);
423: #endif
424: #if 0
425: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
426: perror("mount");
427: #endif
428: #if 0
429: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
430: int i=strtol(t+1,&t,10);
431: printf("%d %s\n",i,t);
432: #endif
433: #if 0
434: char **tmp;
1.115 fefe 435: putenv("A=foo");
1.1 cvs 436: for (tmp=environ; *tmp; tmp++)
437: puts(*tmp);
438: #endif
439: #if 0
440: char buf[1024];
441: printf("%d\n",fprintf(stderr,"duh\n"));
442: #endif
443: #if 0
444: struct passwd *p=getpwuid(100);
445: puts(p->pw_name);
446: #endif
447: #if 0
448: int pid;
449: char name[32];
450: sscanf("1 (init","%d (%15c",&pid,name);
451: printf("pid %d name %s\n",pid,name);
452: #endif
1.109 fefe 453: #if 0
1.1 cvs 454: DIR *d=opendir("/proc");
455: if (d) {
456: struct dirent *D;
457: while (D=readdir(d))
458: puts(D->d_name);
459: closedir(d);
460: }
461: #endif
462: #if 0
463: char buf[1024];
464: int fd=open("/etc/passwd",0);
465: pread(fd,buf,30,32);
466: close(fd);
467: write(1,buf,32);
468: #endif
469: #if 0
470: char *argv[] = {"echo","foo",0};
471: char buf[100];
472: buf[5]='x';
473: sprintf(buf,"foo\n");
474: if (buf[5] == 'x')
475: exit(0);
476: else
477: exit(1);
478: execvp(argv[0],argv);
479: #endif
1.10 fefe 480: #if 0
1.1 cvs 481: struct stat64 f;
482: char buf[128];
483: fstat64(0,&f);
484: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
485: return 0;
486: #endif
487: #if 0
488: FILE *f=fopen("foo","w");
489: fputc('a',f);
490: fputc('b',f);
491: fputc('c',f);
492: #endif
493: /* fprintf(stdout,"foo\n"); */
494: }
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