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