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