Annotation of dietlibc/t.c, revision 1.63
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>
1.1 cvs 28:
1.17 fefe 29: #if 0
1.16 fefe 30: int compint(const void *a,const void *b) {
31: /* printf("comparing %d with %d\n",*(int*)a,*(int*)b); */
32: return (*(int*)a-*(int*)b);
33: }
34:
35: #define SIZE 100000
36: #define LOOKFOR ((SIZE/2)-2)
37:
38: int array[SIZE];
39:
40: #define rdtscl(low) \
41: __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
42:
43: static unsigned int seed=1;
44:
45: static int rand() {
46: return ((seed = seed * 1103515245 + 12345) % ((unsigned int)RAND_MAX + 1));
47: }
1.17 fefe 48: #endif
1.16 fefe 49:
1.24 fefe 50: extern double atof(const char *c);
51:
1.57 fefe 52:
1.12 fefe 53: int main(int argc,char *argv[]) {
1.61 fefe 54: char foo[10];
1.63 ! fefe 55: strcpy(foo,"foo");
! 56: strncat(foo,"barbaz",3);
! 57: foo[6]=0;
! 58: puts(foo);
1.59 fefe 59: #if 0
1.58 fefe 60: struct hostent * host;
61: struct in_addr i;
1.57 fefe 62:
1.58 fefe 63: host = gethostbyname("ftp.ciril.fr");
1.57 fefe 64:
1.58 fefe 65: if (!host)
66: printf("host null\n");
1.57 fefe 67:
1.58 fefe 68: if (host && host->h_name) {
69: printf("name %s\n", host->h_name);
70: }
71: if (host && (host->h_addr_list)[0]) {
72: struct in_addr address;
73: address = *((struct in_addr *) (host->h_addr_list)[0]);
74: printf("addr %s\n", inet_ntoa(address));
75: }
1.59 fefe 76: #endif
1.57 fefe 77: #if 0
1.56 fefe 78: struct msgbuf bla;
79: bla.mtype=0;
80: bla.mtext[0]='x';
81: msgsnd(327680,&bla,5,IPC_NOWAIT);
1.57 fefe 82: #endif
1.55 fefe 83: #if 0
1.54 fefe 84: char buf[PATH_MAX];
85: printf("%s\n",realpath("../../incoming/..///.zshrc",buf));
1.55 fefe 86: #endif
1.56 fefe 87: #if 0
1.53 fefe 88: regex_t t;
1.55 fefe 89: regcomp(&t,"foo",0);
90: printf("%d\n",regexec(&t,"/* built-in 'exec' handler */",0,0,0));
1.56 fefe 91: #endif
1.53 fefe 92: #if 0
1.52 fefe 93: float my_float = 9.2334;
94: char buffer[100];
95:
96: sprintf(buffer, "%.2f", my_float);
97: fprintf(stdout, "%s", buffer);
1.53 fefe 98: #endif
1.52 fefe 99: #if 0
1.51 fefe 100: printf("%d\n",setenv("foo","bar",0));
101: printf("%d\n",setenv("foo","bar",1));
102: execlp("printenv","printenv","foo",0);
1.52 fefe 103: #endif
1.60 fefe 104: #if 0
1.59 fefe 105: printf("%d\n",fnmatch("*c*","bin",0));
1.50 fefe 106: if (!fnmatch("s*", "sub", 0))
107: printf("s* sub\n");
108: if (!fnmatch("s*", "glob", 0))
109: printf("s* glob\n");
110: if (!fnmatch("s*b", "sub", 0))
111: printf("s*b sub\n");
112: if (!fnmatch("s*h", "sub", 0))
113: printf("s*h sub\n");
1.51 fefe 114: #endif
1.49 fefe 115: #if 0
1.48 fefe 116: char*tmp;
117: int n=asprintf(&tmp,"foo %s %d\n","bar",23);
118: write(1,tmp,n);
119: free(tmp);
1.49 fefe 120: #endif
1.41 fefe 121: #if 0
1.40 fefe 122: struct passwd *p=getpwnam("leitner");
1.41 fefe 123: struct spwd *s=getspnam("leitner");
1.39 fefe 124: printf("%g\n",30.0123);
1.41 fefe 125: #endif
1.43 fefe 126: #if 0
1.42 fefe 127: initgroups("root",100);
1.43 fefe 128: #endif
1.38 fefe 129: #if 0
1.37 fefe 130: time_t t=time(0);
131: puts(asctime(localtime(&t)));
1.38 fefe 132: #endif
1.37 fefe 133: #if 0
1.36 fefe 134: struct servent *foo=getservbyname("ident","tcp");
135: if (foo)
136: printf("found service %s on port %d\n",foo->s_name,foo->s_port);
1.37 fefe 137: #endif
1.35 fefe 138: #if 0
1.33 fefe 139: char buf[128];
140: strcpy(buf,"/tmp/foo.XXXXXXX");
141: printf("%d\n",mkstemp(buf));
1.34 fefe 142: printf("%s\n",buf);
143: unlink(buf);
1.35 fefe 144: #endif
1.33 fefe 145: #if 0
1.32 fefe 146: char buf[512]="foo";
147: strncat(buf,"barbaz",3);
148: puts(buf);
1.33 fefe 149: #endif
1.32 fefe 150: #if 0
1.31 fefe 151: time_t oink=time(0);
152: struct tm *duh=localtime(&oink);
153: strftime(buf,512,"%A %B %Y\n",duh);
154: puts(buf);
1.32 fefe 155: #endif
1.31 fefe 156: #if 0
1.28 fefe 157: struct in_addr bar;
158: struct hostent *foo;
1.29 fefe 159: /* inet_aton("160.45.10.8",&bar); */
160: foo=gethostbyname("zeit.fu-berlin.de");
161: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 162: if (foo)
163: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 164: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 165: #endif
1.18 fefe 166: #if 0
1.17 fefe 167: double d=0.0;
168: long long t=0x12345678ABCDEF01;
169: d/=0.0;
170: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 171: #endif
1.17 fefe 172: #if 0
1.16 fefe 173: int i,j;
174: long a,b,c;
175: int *res;
176: printf("%p\n",malloc(0));
177: qsort(array,2,sizeof(int),compint);
178: for (i=0; i<SIZE; ++i)
179: array[i]=rand();
180: rdtscl(a);
181: qsort(array,SIZE,sizeof(int),compint);
182: rdtscl(b);
183: j=array[LOOKFOR];
184: res=bsearch(&j,array,SIZE,sizeof(int),compint);
185: rdtscl(c);
186: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
187: for (i=0; i<SIZE-1; ++i)
188: if (array[i]>array[i+1]) {
189: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
190: return 1;
191: }
192: if (*res!=j)
193: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
194: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 195: #endif
1.13 fefe 196: #if 0
1.12 fefe 197: struct in_addr duh;
198: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
199: printf("%x\n",duh.s_addr);
1.13 fefe 200: #endif
1.12 fefe 201: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 202: #if 0
1.10 fefe 203: char buf[100];
204: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
205: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 206: #endif
1.9 fefe 207: #if 0
1.7 fefe 208: struct tm duh;
209: time_t t;
1.8 fefe 210: time(&t);
211: gmtime_r(&t,&duh);
212: printf("%s\n",asctime(&duh));
1.9 fefe 213: #endif
1.8 fefe 214: #if 0
1.7 fefe 215: char buf[30];
216: duh.tm_sec=42;
217: duh.tm_min=23;
218: duh.tm_hour=17;
219: duh.tm_mday=2;
220: duh.tm_mon=7;
221: duh.tm_year=100;
222: t=mktime(&duh);
223: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 224: #endif
1.2 fefe 225: #if 0
1.1 cvs 226: int i;
227: for (i=0; i<5; i++) {
228: fprintf(stdout,"first message\n");
229: fprintf(stdout,"second message\n");
230: fprintf(stdout,"third message\n");
231: printf("foo %d\n",i);
232: }
1.2 fefe 233: #endif
1.1 cvs 234: #if 0
235: char buf[1024];
236: sscanf("foo bar","%s",buf);
237: printf("%s\n",buf);
238: #endif
239: #if 0
240: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
241: perror("mount");
242: #endif
243: #if 0
244: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
245: int i=strtol(t+1,&t,10);
246: printf("%d %s\n",i,t);
247: #endif
248: #if 0
249: char **tmp;
250: putenv("FOO");
251: assert(1==2);
252: for (tmp=environ; *tmp; tmp++)
253: puts(*tmp);
254: #endif
255: #if 0
256: char buf[1024];
257: printf("%d\n",fprintf(stderr,"duh\n"));
258: #endif
259: #if 0
260: struct passwd *p=getpwuid(100);
261: puts(p->pw_name);
262: #endif
263: #if 0
264: int pid;
265: char name[32];
266: sscanf("1 (init","%d (%15c",&pid,name);
267: printf("pid %d name %s\n",pid,name);
268: #endif
269: #if 0
270: DIR *d=opendir("/proc");
271: if (d) {
272: struct dirent *D;
273: while (D=readdir(d))
274: puts(D->d_name);
275: closedir(d);
276: }
277: #endif
278: #if 0
279: char buf[1024];
280: int fd=open("/etc/passwd",0);
281: pread(fd,buf,30,32);
282: close(fd);
283: write(1,buf,32);
284: #endif
285: #if 0
286: char *argv[] = {"echo","foo",0};
287: char buf[100];
288: buf[5]='x';
289: sprintf(buf,"foo\n");
290: if (buf[5] == 'x')
291: exit(0);
292: else
293: exit(1);
294: execvp(argv[0],argv);
295: #endif
1.10 fefe 296: #if 0
1.1 cvs 297: struct stat64 f;
298: char buf[128];
299: fstat64(0,&f);
300: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
301: return 0;
302: #endif
303: #if 0
304: FILE *f=fopen("foo","w");
305: fputc('a',f);
306: fputc('b',f);
307: fputc('c',f);
308: #endif
309: /* fprintf(stdout,"foo\n"); */
310: }
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