Annotation of dietlibc/t.c, revision 1.64
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];
1.64 ! fefe 55: printf("%d %d\n",abs(-3),abs(23));
1.63 fefe 56: strcpy(foo,"foo");
57: strncat(foo,"barbaz",3);
58: foo[6]=0;
59: puts(foo);
1.59 fefe 60: #if 0
1.58 fefe 61: struct hostent * host;
62: struct in_addr i;
1.57 fefe 63:
1.58 fefe 64: host = gethostbyname("ftp.ciril.fr");
1.57 fefe 65:
1.58 fefe 66: if (!host)
67: printf("host null\n");
1.57 fefe 68:
1.58 fefe 69: if (host && host->h_name) {
70: printf("name %s\n", host->h_name);
71: }
72: if (host && (host->h_addr_list)[0]) {
73: struct in_addr address;
74: address = *((struct in_addr *) (host->h_addr_list)[0]);
75: printf("addr %s\n", inet_ntoa(address));
76: }
1.59 fefe 77: #endif
1.57 fefe 78: #if 0
1.56 fefe 79: struct msgbuf bla;
80: bla.mtype=0;
81: bla.mtext[0]='x';
82: msgsnd(327680,&bla,5,IPC_NOWAIT);
1.57 fefe 83: #endif
1.55 fefe 84: #if 0
1.54 fefe 85: char buf[PATH_MAX];
86: printf("%s\n",realpath("../../incoming/..///.zshrc",buf));
1.55 fefe 87: #endif
1.56 fefe 88: #if 0
1.53 fefe 89: regex_t t;
1.55 fefe 90: regcomp(&t,"foo",0);
91: printf("%d\n",regexec(&t,"/* built-in 'exec' handler */",0,0,0));
1.56 fefe 92: #endif
1.53 fefe 93: #if 0
1.52 fefe 94: float my_float = 9.2334;
95: char buffer[100];
96:
97: sprintf(buffer, "%.2f", my_float);
98: fprintf(stdout, "%s", buffer);
1.53 fefe 99: #endif
1.52 fefe 100: #if 0
1.51 fefe 101: printf("%d\n",setenv("foo","bar",0));
102: printf("%d\n",setenv("foo","bar",1));
103: execlp("printenv","printenv","foo",0);
1.52 fefe 104: #endif
1.60 fefe 105: #if 0
1.59 fefe 106: printf("%d\n",fnmatch("*c*","bin",0));
1.50 fefe 107: if (!fnmatch("s*", "sub", 0))
108: printf("s* sub\n");
109: if (!fnmatch("s*", "glob", 0))
110: printf("s* glob\n");
111: if (!fnmatch("s*b", "sub", 0))
112: printf("s*b sub\n");
113: if (!fnmatch("s*h", "sub", 0))
114: printf("s*h sub\n");
1.51 fefe 115: #endif
1.49 fefe 116: #if 0
1.48 fefe 117: char*tmp;
118: int n=asprintf(&tmp,"foo %s %d\n","bar",23);
119: write(1,tmp,n);
120: free(tmp);
1.49 fefe 121: #endif
1.41 fefe 122: #if 0
1.40 fefe 123: struct passwd *p=getpwnam("leitner");
1.41 fefe 124: struct spwd *s=getspnam("leitner");
1.39 fefe 125: printf("%g\n",30.0123);
1.41 fefe 126: #endif
1.43 fefe 127: #if 0
1.42 fefe 128: initgroups("root",100);
1.43 fefe 129: #endif
1.38 fefe 130: #if 0
1.37 fefe 131: time_t t=time(0);
132: puts(asctime(localtime(&t)));
1.38 fefe 133: #endif
1.37 fefe 134: #if 0
1.36 fefe 135: struct servent *foo=getservbyname("ident","tcp");
136: if (foo)
137: printf("found service %s on port %d\n",foo->s_name,foo->s_port);
1.37 fefe 138: #endif
1.35 fefe 139: #if 0
1.33 fefe 140: char buf[128];
141: strcpy(buf,"/tmp/foo.XXXXXXX");
142: printf("%d\n",mkstemp(buf));
1.34 fefe 143: printf("%s\n",buf);
144: unlink(buf);
1.35 fefe 145: #endif
1.33 fefe 146: #if 0
1.32 fefe 147: char buf[512]="foo";
148: strncat(buf,"barbaz",3);
149: puts(buf);
1.33 fefe 150: #endif
1.32 fefe 151: #if 0
1.31 fefe 152: time_t oink=time(0);
153: struct tm *duh=localtime(&oink);
154: strftime(buf,512,"%A %B %Y\n",duh);
155: puts(buf);
1.32 fefe 156: #endif
1.31 fefe 157: #if 0
1.28 fefe 158: struct in_addr bar;
159: struct hostent *foo;
1.29 fefe 160: /* inet_aton("160.45.10.8",&bar); */
161: foo=gethostbyname("zeit.fu-berlin.de");
162: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 163: if (foo)
164: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 165: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 166: #endif
1.18 fefe 167: #if 0
1.17 fefe 168: double d=0.0;
169: long long t=0x12345678ABCDEF01;
170: d/=0.0;
171: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 172: #endif
1.17 fefe 173: #if 0
1.16 fefe 174: int i,j;
175: long a,b,c;
176: int *res;
177: printf("%p\n",malloc(0));
178: qsort(array,2,sizeof(int),compint);
179: for (i=0; i<SIZE; ++i)
180: array[i]=rand();
181: rdtscl(a);
182: qsort(array,SIZE,sizeof(int),compint);
183: rdtscl(b);
184: j=array[LOOKFOR];
185: res=bsearch(&j,array,SIZE,sizeof(int),compint);
186: rdtscl(c);
187: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
188: for (i=0; i<SIZE-1; ++i)
189: if (array[i]>array[i+1]) {
190: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
191: return 1;
192: }
193: if (*res!=j)
194: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
195: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 196: #endif
1.13 fefe 197: #if 0
1.12 fefe 198: struct in_addr duh;
199: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
200: printf("%x\n",duh.s_addr);
1.13 fefe 201: #endif
1.12 fefe 202: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 203: #if 0
1.10 fefe 204: char buf[100];
205: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
206: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 207: #endif
1.9 fefe 208: #if 0
1.7 fefe 209: struct tm duh;
210: time_t t;
1.8 fefe 211: time(&t);
212: gmtime_r(&t,&duh);
213: printf("%s\n",asctime(&duh));
1.9 fefe 214: #endif
1.8 fefe 215: #if 0
1.7 fefe 216: char buf[30];
217: duh.tm_sec=42;
218: duh.tm_min=23;
219: duh.tm_hour=17;
220: duh.tm_mday=2;
221: duh.tm_mon=7;
222: duh.tm_year=100;
223: t=mktime(&duh);
224: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 225: #endif
1.2 fefe 226: #if 0
1.1 cvs 227: int i;
228: for (i=0; i<5; i++) {
229: fprintf(stdout,"first message\n");
230: fprintf(stdout,"second message\n");
231: fprintf(stdout,"third message\n");
232: printf("foo %d\n",i);
233: }
1.2 fefe 234: #endif
1.1 cvs 235: #if 0
236: char buf[1024];
237: sscanf("foo bar","%s",buf);
238: printf("%s\n",buf);
239: #endif
240: #if 0
241: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
242: perror("mount");
243: #endif
244: #if 0
245: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
246: int i=strtol(t+1,&t,10);
247: printf("%d %s\n",i,t);
248: #endif
249: #if 0
250: char **tmp;
251: putenv("FOO");
252: assert(1==2);
253: for (tmp=environ; *tmp; tmp++)
254: puts(*tmp);
255: #endif
256: #if 0
257: char buf[1024];
258: printf("%d\n",fprintf(stderr,"duh\n"));
259: #endif
260: #if 0
261: struct passwd *p=getpwuid(100);
262: puts(p->pw_name);
263: #endif
264: #if 0
265: int pid;
266: char name[32];
267: sscanf("1 (init","%d (%15c",&pid,name);
268: printf("pid %d name %s\n",pid,name);
269: #endif
270: #if 0
271: DIR *d=opendir("/proc");
272: if (d) {
273: struct dirent *D;
274: while (D=readdir(d))
275: puts(D->d_name);
276: closedir(d);
277: }
278: #endif
279: #if 0
280: char buf[1024];
281: int fd=open("/etc/passwd",0);
282: pread(fd,buf,30,32);
283: close(fd);
284: write(1,buf,32);
285: #endif
286: #if 0
287: char *argv[] = {"echo","foo",0};
288: char buf[100];
289: buf[5]='x';
290: sprintf(buf,"foo\n");
291: if (buf[5] == 'x')
292: exit(0);
293: else
294: exit(1);
295: execvp(argv[0],argv);
296: #endif
1.10 fefe 297: #if 0
1.1 cvs 298: struct stat64 f;
299: char buf[128];
300: fstat64(0,&f);
301: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
302: return 0;
303: #endif
304: #if 0
305: FILE *f=fopen("foo","w");
306: fputc('a',f);
307: fputc('b',f);
308: fputc('c',f);
309: #endif
310: /* fprintf(stdout,"foo\n"); */
311: }
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