Annotation of dietlibc/t.c, revision 1.48
1.47 fefe 1: #define _FILE_OFFSET_BITS 64
1.1 cvs 2: #include <unistd.h>
3: #include <endian.h>
4: #include <stdlib.h>
5: #include <dirent.h>
6: #include <pwd.h>
1.40 fefe 7: #include <shadow.h>
1.1 cvs 8: #include <stdio.h>
9: #include <assert.h>
10: #include <sys/mount.h>
1.7 fefe 11: #include <time.h>
1.9 fefe 12: #include <sys/stat.h>
1.10 fefe 13: #include <stdio.h>
1.12 fefe 14: #include <arpa/inet.h>
1.13 fefe 15: #include <sys/sem.h>
1.14 fefe 16: #include <sys/shm.h>
1.17 fefe 17: #include <math.h>
1.20 fefe 18: #include <termios.h>
1.22 fefe 19: #include <netdb.h>
1.38 fefe 20: #include <sys/mman.h>
1.45 fefe 21: #include <ctype.h>
1.1 cvs 22:
1.17 fefe 23: #if 0
1.16 fefe 24: int compint(const void *a,const void *b) {
25: /* printf("comparing %d with %d\n",*(int*)a,*(int*)b); */
26: return (*(int*)a-*(int*)b);
27: }
28:
29: #define SIZE 100000
30: #define LOOKFOR ((SIZE/2)-2)
31:
32: int array[SIZE];
33:
34: #define rdtscl(low) \
35: __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
36:
37: static unsigned int seed=1;
38:
39: static int rand() {
40: return ((seed = seed * 1103515245 + 12345) % ((unsigned int)RAND_MAX + 1));
41: }
1.17 fefe 42: #endif
1.16 fefe 43:
1.24 fefe 44: extern double atof(const char *c);
45:
1.12 fefe 46: int main(int argc,char *argv[]) {
1.48 ! fefe 47: char*tmp;
! 48: int n=asprintf(&tmp,"foo %s %d\n","bar",23);
! 49: write(1,tmp,n);
! 50: free(tmp);
1.41 fefe 51: #if 0
1.40 fefe 52: struct passwd *p=getpwnam("leitner");
1.41 fefe 53: struct spwd *s=getspnam("leitner");
1.39 fefe 54: printf("%g\n",30.0123);
1.41 fefe 55: #endif
1.43 fefe 56: #if 0
1.42 fefe 57: initgroups("root",100);
1.43 fefe 58: #endif
1.38 fefe 59: #if 0
1.37 fefe 60: time_t t=time(0);
61: puts(asctime(localtime(&t)));
1.38 fefe 62: #endif
1.37 fefe 63: #if 0
1.36 fefe 64: struct servent *foo=getservbyname("ident","tcp");
65: if (foo)
66: printf("found service %s on port %d\n",foo->s_name,foo->s_port);
1.37 fefe 67: #endif
1.35 fefe 68: #if 0
1.33 fefe 69: char buf[128];
70: strcpy(buf,"/tmp/foo.XXXXXXX");
71: printf("%d\n",mkstemp(buf));
1.34 fefe 72: printf("%s\n",buf);
73: unlink(buf);
1.35 fefe 74: #endif
1.33 fefe 75: #if 0
1.32 fefe 76: char buf[512]="foo";
77: strncat(buf,"barbaz",3);
78: puts(buf);
1.33 fefe 79: #endif
1.32 fefe 80: #if 0
1.31 fefe 81: time_t oink=time(0);
82: struct tm *duh=localtime(&oink);
83: strftime(buf,512,"%A %B %Y\n",duh);
84: puts(buf);
1.32 fefe 85: #endif
1.31 fefe 86: #if 0
1.28 fefe 87: struct in_addr bar;
88: struct hostent *foo;
1.29 fefe 89: /* inet_aton("160.45.10.8",&bar); */
90: foo=gethostbyname("zeit.fu-berlin.de");
91: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 92: if (foo)
93: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 94: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 95: #endif
1.18 fefe 96: #if 0
1.17 fefe 97: double d=0.0;
98: long long t=0x12345678ABCDEF01;
99: d/=0.0;
100: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 101: #endif
1.17 fefe 102: #if 0
1.16 fefe 103: int i,j;
104: long a,b,c;
105: int *res;
106: printf("%p\n",malloc(0));
107: qsort(array,2,sizeof(int),compint);
108: for (i=0; i<SIZE; ++i)
109: array[i]=rand();
110: rdtscl(a);
111: qsort(array,SIZE,sizeof(int),compint);
112: rdtscl(b);
113: j=array[LOOKFOR];
114: res=bsearch(&j,array,SIZE,sizeof(int),compint);
115: rdtscl(c);
116: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
117: for (i=0; i<SIZE-1; ++i)
118: if (array[i]>array[i+1]) {
119: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
120: return 1;
121: }
122: if (*res!=j)
123: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
124: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 125: #endif
1.13 fefe 126: #if 0
1.12 fefe 127: struct in_addr duh;
128: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
129: printf("%x\n",duh.s_addr);
1.13 fefe 130: #endif
1.12 fefe 131: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 132: #if 0
1.10 fefe 133: char buf[100];
134: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
135: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 136: #endif
1.9 fefe 137: #if 0
1.7 fefe 138: struct tm duh;
139: time_t t;
1.8 fefe 140: time(&t);
141: gmtime_r(&t,&duh);
142: printf("%s\n",asctime(&duh));
1.9 fefe 143: #endif
1.8 fefe 144: #if 0
1.7 fefe 145: char buf[30];
146: duh.tm_sec=42;
147: duh.tm_min=23;
148: duh.tm_hour=17;
149: duh.tm_mday=2;
150: duh.tm_mon=7;
151: duh.tm_year=100;
152: t=mktime(&duh);
153: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 154: #endif
1.2 fefe 155: #if 0
1.1 cvs 156: int i;
157: for (i=0; i<5; i++) {
158: fprintf(stdout,"first message\n");
159: fprintf(stdout,"second message\n");
160: fprintf(stdout,"third message\n");
161: printf("foo %d\n",i);
162: }
1.2 fefe 163: #endif
1.1 cvs 164: #if 0
165: char buf[1024];
166: sscanf("foo bar","%s",buf);
167: printf("%s\n",buf);
168: #endif
169: #if 0
170: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
171: perror("mount");
172: #endif
173: #if 0
174: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
175: int i=strtol(t+1,&t,10);
176: printf("%d %s\n",i,t);
177: #endif
178: #if 0
179: char **tmp;
180: putenv("FOO");
181: assert(1==2);
182: for (tmp=environ; *tmp; tmp++)
183: puts(*tmp);
184: #endif
185: #if 0
186: char buf[1024];
187: printf("%d\n",fprintf(stderr,"duh\n"));
188: #endif
189: #if 0
190: struct passwd *p=getpwuid(100);
191: puts(p->pw_name);
192: #endif
193: #if 0
194: int pid;
195: char name[32];
196: sscanf("1 (init","%d (%15c",&pid,name);
197: printf("pid %d name %s\n",pid,name);
198: #endif
199: #if 0
200: DIR *d=opendir("/proc");
201: if (d) {
202: struct dirent *D;
203: while (D=readdir(d))
204: puts(D->d_name);
205: closedir(d);
206: }
207: #endif
208: #if 0
209: char buf[1024];
210: int fd=open("/etc/passwd",0);
211: pread(fd,buf,30,32);
212: close(fd);
213: write(1,buf,32);
214: #endif
215: #if 0
216: char *argv[] = {"echo","foo",0};
217: char buf[100];
218: buf[5]='x';
219: sprintf(buf,"foo\n");
220: if (buf[5] == 'x')
221: exit(0);
222: else
223: exit(1);
224: execvp(argv[0],argv);
225: #endif
1.10 fefe 226: #if 0
1.1 cvs 227: struct stat64 f;
228: char buf[128];
229: fstat64(0,&f);
230: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
231: return 0;
232: #endif
233: #if 0
234: FILE *f=fopen("foo","w");
235: fputc('a',f);
236: fputc('b',f);
237: fputc('c',f);
238: #endif
239: /* fprintf(stdout,"foo\n"); */
240: }
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