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