Annotation of dietlibc/t.c, revision 1.42
1.1 cvs 1: #include <unistd.h>
2: #include <endian.h>
3: #include <stdlib.h>
4: #include <dirent.h>
5: #include <pwd.h>
1.40 fefe 6: #include <shadow.h>
1.1 cvs 7: #include <stdio.h>
8: #include <assert.h>
9: #include <sys/mount.h>
1.7 fefe 10: #include <time.h>
1.9 fefe 11: #include <sys/stat.h>
1.10 fefe 12: #include <stdio.h>
1.12 fefe 13: #include <arpa/inet.h>
1.13 fefe 14: #include <sys/sem.h>
1.14 fefe 15: #include <sys/shm.h>
1.17 fefe 16: #include <math.h>
1.20 fefe 17: #include <termios.h>
1.22 fefe 18: #include <netdb.h>
1.38 fefe 19: #include <sys/mman.h>
1.1 cvs 20:
1.17 fefe 21: #if 0
1.16 fefe 22: int compint(const void *a,const void *b) {
23: /* printf("comparing %d with %d\n",*(int*)a,*(int*)b); */
24: return (*(int*)a-*(int*)b);
25: }
26:
27: #define SIZE 100000
28: #define LOOKFOR ((SIZE/2)-2)
29:
30: int array[SIZE];
31:
32: #define rdtscl(low) \
33: __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
34:
35: static unsigned int seed=1;
36:
37: static int rand() {
38: return ((seed = seed * 1103515245 + 12345) % ((unsigned int)RAND_MAX + 1));
39: }
1.17 fefe 40: #endif
1.16 fefe 41:
1.24 fefe 42: extern double atof(const char *c);
43:
1.12 fefe 44: int main(int argc,char *argv[]) {
1.41 fefe 45: #if 0
1.40 fefe 46: struct passwd *p=getpwnam("leitner");
1.41 fefe 47: struct spwd *s=getspnam("leitner");
1.39 fefe 48: printf("%g\n",30.0123);
1.41 fefe 49: #endif
1.42 ! fefe 50: initgroups("root",100);
1.38 fefe 51: #if 0
1.37 fefe 52: time_t t=time(0);
53: puts(asctime(localtime(&t)));
1.38 fefe 54: #endif
1.37 fefe 55: #if 0
1.36 fefe 56: struct servent *foo=getservbyname("ident","tcp");
57: if (foo)
58: printf("found service %s on port %d\n",foo->s_name,foo->s_port);
1.37 fefe 59: #endif
1.35 fefe 60: #if 0
1.33 fefe 61: char buf[128];
62: strcpy(buf,"/tmp/foo.XXXXXXX");
63: printf("%d\n",mkstemp(buf));
1.34 fefe 64: printf("%s\n",buf);
65: unlink(buf);
1.35 fefe 66: #endif
1.33 fefe 67: #if 0
1.32 fefe 68: char buf[512]="foo";
69: strncat(buf,"barbaz",3);
70: puts(buf);
1.33 fefe 71: #endif
1.32 fefe 72: #if 0
1.31 fefe 73: time_t oink=time(0);
74: struct tm *duh=localtime(&oink);
75: strftime(buf,512,"%A %B %Y\n",duh);
76: puts(buf);
1.32 fefe 77: #endif
1.31 fefe 78: #if 0
1.28 fefe 79: struct in_addr bar;
80: struct hostent *foo;
1.29 fefe 81: /* inet_aton("160.45.10.8",&bar); */
82: foo=gethostbyname("zeit.fu-berlin.de");
83: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 84: if (foo)
85: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 86: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 87: #endif
1.18 fefe 88: #if 0
1.17 fefe 89: double d=0.0;
90: long long t=0x12345678ABCDEF01;
91: d/=0.0;
92: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 93: #endif
1.17 fefe 94: #if 0
1.16 fefe 95: int i,j;
96: long a,b,c;
97: int *res;
98: printf("%p\n",malloc(0));
99: qsort(array,2,sizeof(int),compint);
100: for (i=0; i<SIZE; ++i)
101: array[i]=rand();
102: rdtscl(a);
103: qsort(array,SIZE,sizeof(int),compint);
104: rdtscl(b);
105: j=array[LOOKFOR];
106: res=bsearch(&j,array,SIZE,sizeof(int),compint);
107: rdtscl(c);
108: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
109: for (i=0; i<SIZE-1; ++i)
110: if (array[i]>array[i+1]) {
111: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
112: return 1;
113: }
114: if (*res!=j)
115: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
116: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 117: #endif
1.13 fefe 118: #if 0
1.12 fefe 119: struct in_addr duh;
120: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
121: printf("%x\n",duh.s_addr);
1.13 fefe 122: #endif
1.12 fefe 123: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 124: #if 0
1.10 fefe 125: char buf[100];
126: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
127: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 128: #endif
1.9 fefe 129: #if 0
1.7 fefe 130: struct tm duh;
131: time_t t;
1.8 fefe 132: time(&t);
133: gmtime_r(&t,&duh);
134: printf("%s\n",asctime(&duh));
1.9 fefe 135: #endif
1.8 fefe 136: #if 0
1.7 fefe 137: char buf[30];
138: duh.tm_sec=42;
139: duh.tm_min=23;
140: duh.tm_hour=17;
141: duh.tm_mday=2;
142: duh.tm_mon=7;
143: duh.tm_year=100;
144: t=mktime(&duh);
145: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 146: #endif
1.2 fefe 147: #if 0
1.1 cvs 148: int i;
149: for (i=0; i<5; i++) {
150: fprintf(stdout,"first message\n");
151: fprintf(stdout,"second message\n");
152: fprintf(stdout,"third message\n");
153: printf("foo %d\n",i);
154: }
1.2 fefe 155: #endif
1.1 cvs 156: #if 0
157: char buf[1024];
158: sscanf("foo bar","%s",buf);
159: printf("%s\n",buf);
160: #endif
161: #if 0
162: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
163: perror("mount");
164: #endif
165: #if 0
166: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
167: int i=strtol(t+1,&t,10);
168: printf("%d %s\n",i,t);
169: #endif
170: #if 0
171: char **tmp;
172: putenv("FOO");
173: assert(1==2);
174: for (tmp=environ; *tmp; tmp++)
175: puts(*tmp);
176: #endif
177: #if 0
178: char buf[1024];
179: printf("%d\n",fprintf(stderr,"duh\n"));
180: #endif
181: #if 0
182: struct passwd *p=getpwuid(100);
183: puts(p->pw_name);
184: #endif
185: #if 0
186: int pid;
187: char name[32];
188: sscanf("1 (init","%d (%15c",&pid,name);
189: printf("pid %d name %s\n",pid,name);
190: #endif
191: #if 0
192: DIR *d=opendir("/proc");
193: if (d) {
194: struct dirent *D;
195: while (D=readdir(d))
196: puts(D->d_name);
197: closedir(d);
198: }
199: #endif
200: #if 0
201: char buf[1024];
202: int fd=open("/etc/passwd",0);
203: pread(fd,buf,30,32);
204: close(fd);
205: write(1,buf,32);
206: #endif
207: #if 0
208: char *argv[] = {"echo","foo",0};
209: char buf[100];
210: buf[5]='x';
211: sprintf(buf,"foo\n");
212: if (buf[5] == 'x')
213: exit(0);
214: else
215: exit(1);
216: execvp(argv[0],argv);
217: #endif
1.10 fefe 218: #if 0
1.1 cvs 219: struct stat64 f;
220: char buf[128];
221: fstat64(0,&f);
222: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
223: return 0;
224: #endif
225: #if 0
226: FILE *f=fopen("foo","w");
227: fputc('a',f);
228: fputc('b',f);
229: fputc('c',f);
230: #endif
231: /* fprintf(stdout,"foo\n"); */
232: }
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