Annotation of dietlibc/t.c, revision 1.26
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[]) {
1.26 ! fefe 43: struct in_addr foo;
! 44: inet_aton("10.1.1.35",&foo);
! 45: #if 0
1.25 fefe 46: struct hostent *foo=gethostbyname("zeit.fu-berlin.de");
47: if (foo)
48: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 49: /* printf("%g %g\n",1e-10,1e10); */
1.26 ! fefe 50: #endif
1.18 fefe 51: #if 0
1.17 fefe 52: double d=0.0;
53: long long t=0x12345678ABCDEF01;
54: d/=0.0;
55: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 56: #endif
1.17 fefe 57: #if 0
1.16 fefe 58: int i,j;
59: long a,b,c;
60: int *res;
61: printf("%p\n",malloc(0));
62: qsort(array,2,sizeof(int),compint);
63: for (i=0; i<SIZE; ++i)
64: array[i]=rand();
65: rdtscl(a);
66: qsort(array,SIZE,sizeof(int),compint);
67: rdtscl(b);
68: j=array[LOOKFOR];
69: res=bsearch(&j,array,SIZE,sizeof(int),compint);
70: rdtscl(c);
71: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
72: for (i=0; i<SIZE-1; ++i)
73: if (array[i]>array[i+1]) {
74: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
75: return 1;
76: }
77: if (*res!=j)
78: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
79: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 80: #endif
1.13 fefe 81: #if 0
1.12 fefe 82: struct in_addr duh;
83: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
84: printf("%x\n",duh.s_addr);
1.13 fefe 85: #endif
1.12 fefe 86: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 87: #if 0
1.10 fefe 88: char buf[100];
89: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
90: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 91: #endif
1.9 fefe 92: #if 0
1.7 fefe 93: struct tm duh;
94: time_t t;
1.8 fefe 95: time(&t);
96: gmtime_r(&t,&duh);
97: printf("%s\n",asctime(&duh));
1.9 fefe 98: #endif
1.8 fefe 99: #if 0
1.7 fefe 100: char buf[30];
101: duh.tm_sec=42;
102: duh.tm_min=23;
103: duh.tm_hour=17;
104: duh.tm_mday=2;
105: duh.tm_mon=7;
106: duh.tm_year=100;
107: t=mktime(&duh);
108: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 109: #endif
1.2 fefe 110: #if 0
1.1 cvs 111: int i;
112: for (i=0; i<5; i++) {
113: fprintf(stdout,"first message\n");
114: fprintf(stdout,"second message\n");
115: fprintf(stdout,"third message\n");
116: printf("foo %d\n",i);
117: }
1.2 fefe 118: #endif
1.1 cvs 119: #if 0
120: char buf[1024];
121: sscanf("foo bar","%s",buf);
122: printf("%s\n",buf);
123: #endif
124: #if 0
125: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
126: perror("mount");
127: #endif
128: #if 0
129: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
130: int i=strtol(t+1,&t,10);
131: printf("%d %s\n",i,t);
132: #endif
133: #if 0
134: char **tmp;
135: putenv("FOO");
136: assert(1==2);
137: for (tmp=environ; *tmp; tmp++)
138: puts(*tmp);
139: #endif
140: #if 0
141: char buf[1024];
142: printf("%d\n",fprintf(stderr,"duh\n"));
143: #endif
144: #if 0
145: struct passwd *p=getpwuid(100);
146: puts(p->pw_name);
147: #endif
148: #if 0
149: int pid;
150: char name[32];
151: sscanf("1 (init","%d (%15c",&pid,name);
152: printf("pid %d name %s\n",pid,name);
153: #endif
154: #if 0
155: DIR *d=opendir("/proc");
156: if (d) {
157: struct dirent *D;
158: while (D=readdir(d))
159: puts(D->d_name);
160: closedir(d);
161: }
162: #endif
163: #if 0
164: char buf[1024];
165: int fd=open("/etc/passwd",0);
166: pread(fd,buf,30,32);
167: close(fd);
168: write(1,buf,32);
169: #endif
170: #if 0
171: char *argv[] = {"echo","foo",0};
172: char buf[100];
173: buf[5]='x';
174: sprintf(buf,"foo\n");
175: if (buf[5] == 'x')
176: exit(0);
177: else
178: exit(1);
179: execvp(argv[0],argv);
180: #endif
1.10 fefe 181: #if 0
1.1 cvs 182: struct stat64 f;
183: char buf[128];
184: fstat64(0,&f);
185: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
186: return 0;
187: #endif
188: #if 0
189: FILE *f=fopen("foo","w");
190: fputc('a',f);
191: fputc('b',f);
192: fputc('c',f);
193: #endif
194: /* fprintf(stdout,"foo\n"); */
195: }
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