Annotation of dietlibc/t.c, revision 1.62
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>
1.1 cvs 27:
1.17 fefe 28: #if 0
1.16 fefe 29: int compint(const void *a,const void *b) {
30: /* printf("comparing %d with %d\n",*(int*)a,*(int*)b); */
31: return (*(int*)a-*(int*)b);
32: }
33:
34: #define SIZE 100000
35: #define LOOKFOR ((SIZE/2)-2)
36:
37: int array[SIZE];
38:
39: #define rdtscl(low) \
40: __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
41:
42: static unsigned int seed=1;
43:
44: static int rand() {
45: return ((seed = seed * 1103515245 + 12345) % ((unsigned int)RAND_MAX + 1));
46: }
1.17 fefe 47: #endif
1.16 fefe 48:
1.24 fefe 49: extern double atof(const char *c);
50:
1.57 fefe 51:
1.12 fefe 52: int main(int argc,char *argv[]) {
1.61 fefe 53: char foo[10];
1.62 ! fefe 54: sscanf("abcdefghijklmn","%9s\n",foo);
1.59 fefe 55: #if 0
1.58 fefe 56: struct hostent * host;
57: struct in_addr i;
1.57 fefe 58:
1.58 fefe 59: host = gethostbyname("ftp.ciril.fr");
1.57 fefe 60:
1.58 fefe 61: if (!host)
62: printf("host null\n");
1.57 fefe 63:
1.58 fefe 64: if (host && host->h_name) {
65: printf("name %s\n", host->h_name);
66: }
67: if (host && (host->h_addr_list)[0]) {
68: struct in_addr address;
69: address = *((struct in_addr *) (host->h_addr_list)[0]);
70: printf("addr %s\n", inet_ntoa(address));
71: }
1.59 fefe 72: #endif
1.57 fefe 73: #if 0
1.56 fefe 74: struct msgbuf bla;
75: bla.mtype=0;
76: bla.mtext[0]='x';
77: msgsnd(327680,&bla,5,IPC_NOWAIT);
1.57 fefe 78: #endif
1.55 fefe 79: #if 0
1.54 fefe 80: char buf[PATH_MAX];
81: printf("%s\n",realpath("../../incoming/..///.zshrc",buf));
1.55 fefe 82: #endif
1.56 fefe 83: #if 0
1.53 fefe 84: regex_t t;
1.55 fefe 85: regcomp(&t,"foo",0);
86: printf("%d\n",regexec(&t,"/* built-in 'exec' handler */",0,0,0));
1.56 fefe 87: #endif
1.53 fefe 88: #if 0
1.52 fefe 89: float my_float = 9.2334;
90: char buffer[100];
91:
92: sprintf(buffer, "%.2f", my_float);
93: fprintf(stdout, "%s", buffer);
1.53 fefe 94: #endif
1.52 fefe 95: #if 0
1.51 fefe 96: printf("%d\n",setenv("foo","bar",0));
97: printf("%d\n",setenv("foo","bar",1));
98: execlp("printenv","printenv","foo",0);
1.52 fefe 99: #endif
1.60 fefe 100: #if 0
1.59 fefe 101: printf("%d\n",fnmatch("*c*","bin",0));
1.50 fefe 102: if (!fnmatch("s*", "sub", 0))
103: printf("s* sub\n");
104: if (!fnmatch("s*", "glob", 0))
105: printf("s* glob\n");
106: if (!fnmatch("s*b", "sub", 0))
107: printf("s*b sub\n");
108: if (!fnmatch("s*h", "sub", 0))
109: printf("s*h sub\n");
1.51 fefe 110: #endif
1.49 fefe 111: #if 0
1.48 fefe 112: char*tmp;
113: int n=asprintf(&tmp,"foo %s %d\n","bar",23);
114: write(1,tmp,n);
115: free(tmp);
1.49 fefe 116: #endif
1.41 fefe 117: #if 0
1.40 fefe 118: struct passwd *p=getpwnam("leitner");
1.41 fefe 119: struct spwd *s=getspnam("leitner");
1.39 fefe 120: printf("%g\n",30.0123);
1.41 fefe 121: #endif
1.43 fefe 122: #if 0
1.42 fefe 123: initgroups("root",100);
1.43 fefe 124: #endif
1.38 fefe 125: #if 0
1.37 fefe 126: time_t t=time(0);
127: puts(asctime(localtime(&t)));
1.38 fefe 128: #endif
1.37 fefe 129: #if 0
1.36 fefe 130: struct servent *foo=getservbyname("ident","tcp");
131: if (foo)
132: printf("found service %s on port %d\n",foo->s_name,foo->s_port);
1.37 fefe 133: #endif
1.35 fefe 134: #if 0
1.33 fefe 135: char buf[128];
136: strcpy(buf,"/tmp/foo.XXXXXXX");
137: printf("%d\n",mkstemp(buf));
1.34 fefe 138: printf("%s\n",buf);
139: unlink(buf);
1.35 fefe 140: #endif
1.33 fefe 141: #if 0
1.32 fefe 142: char buf[512]="foo";
143: strncat(buf,"barbaz",3);
144: puts(buf);
1.33 fefe 145: #endif
1.32 fefe 146: #if 0
1.31 fefe 147: time_t oink=time(0);
148: struct tm *duh=localtime(&oink);
149: strftime(buf,512,"%A %B %Y\n",duh);
150: puts(buf);
1.32 fefe 151: #endif
1.31 fefe 152: #if 0
1.28 fefe 153: struct in_addr bar;
154: struct hostent *foo;
1.29 fefe 155: /* inet_aton("160.45.10.8",&bar); */
156: foo=gethostbyname("zeit.fu-berlin.de");
157: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 158: if (foo)
159: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 160: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 161: #endif
1.18 fefe 162: #if 0
1.17 fefe 163: double d=0.0;
164: long long t=0x12345678ABCDEF01;
165: d/=0.0;
166: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 167: #endif
1.17 fefe 168: #if 0
1.16 fefe 169: int i,j;
170: long a,b,c;
171: int *res;
172: printf("%p\n",malloc(0));
173: qsort(array,2,sizeof(int),compint);
174: for (i=0; i<SIZE; ++i)
175: array[i]=rand();
176: rdtscl(a);
177: qsort(array,SIZE,sizeof(int),compint);
178: rdtscl(b);
179: j=array[LOOKFOR];
180: res=bsearch(&j,array,SIZE,sizeof(int),compint);
181: rdtscl(c);
182: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
183: for (i=0; i<SIZE-1; ++i)
184: if (array[i]>array[i+1]) {
185: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
186: return 1;
187: }
188: if (*res!=j)
189: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
190: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 191: #endif
1.13 fefe 192: #if 0
1.12 fefe 193: struct in_addr duh;
194: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
195: printf("%x\n",duh.s_addr);
1.13 fefe 196: #endif
1.12 fefe 197: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 198: #if 0
1.10 fefe 199: char buf[100];
200: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
201: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 202: #endif
1.9 fefe 203: #if 0
1.7 fefe 204: struct tm duh;
205: time_t t;
1.8 fefe 206: time(&t);
207: gmtime_r(&t,&duh);
208: printf("%s\n",asctime(&duh));
1.9 fefe 209: #endif
1.8 fefe 210: #if 0
1.7 fefe 211: char buf[30];
212: duh.tm_sec=42;
213: duh.tm_min=23;
214: duh.tm_hour=17;
215: duh.tm_mday=2;
216: duh.tm_mon=7;
217: duh.tm_year=100;
218: t=mktime(&duh);
219: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 220: #endif
1.2 fefe 221: #if 0
1.1 cvs 222: int i;
223: for (i=0; i<5; i++) {
224: fprintf(stdout,"first message\n");
225: fprintf(stdout,"second message\n");
226: fprintf(stdout,"third message\n");
227: printf("foo %d\n",i);
228: }
1.2 fefe 229: #endif
1.1 cvs 230: #if 0
231: char buf[1024];
232: sscanf("foo bar","%s",buf);
233: printf("%s\n",buf);
234: #endif
235: #if 0
236: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
237: perror("mount");
238: #endif
239: #if 0
240: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
241: int i=strtol(t+1,&t,10);
242: printf("%d %s\n",i,t);
243: #endif
244: #if 0
245: char **tmp;
246: putenv("FOO");
247: assert(1==2);
248: for (tmp=environ; *tmp; tmp++)
249: puts(*tmp);
250: #endif
251: #if 0
252: char buf[1024];
253: printf("%d\n",fprintf(stderr,"duh\n"));
254: #endif
255: #if 0
256: struct passwd *p=getpwuid(100);
257: puts(p->pw_name);
258: #endif
259: #if 0
260: int pid;
261: char name[32];
262: sscanf("1 (init","%d (%15c",&pid,name);
263: printf("pid %d name %s\n",pid,name);
264: #endif
265: #if 0
266: DIR *d=opendir("/proc");
267: if (d) {
268: struct dirent *D;
269: while (D=readdir(d))
270: puts(D->d_name);
271: closedir(d);
272: }
273: #endif
274: #if 0
275: char buf[1024];
276: int fd=open("/etc/passwd",0);
277: pread(fd,buf,30,32);
278: close(fd);
279: write(1,buf,32);
280: #endif
281: #if 0
282: char *argv[] = {"echo","foo",0};
283: char buf[100];
284: buf[5]='x';
285: sprintf(buf,"foo\n");
286: if (buf[5] == 'x')
287: exit(0);
288: else
289: exit(1);
290: execvp(argv[0],argv);
291: #endif
1.10 fefe 292: #if 0
1.1 cvs 293: struct stat64 f;
294: char buf[128];
295: fstat64(0,&f);
296: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
297: return 0;
298: #endif
299: #if 0
300: FILE *f=fopen("foo","w");
301: fputc('a',f);
302: fputc('b',f);
303: fputc('c',f);
304: #endif
305: /* fprintf(stdout,"foo\n"); */
306: }
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