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