Annotation of dietlibc/t.c, revision 1.52
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>
1.49 fefe 22: #include <mntent.h>
1.1 cvs 23:
1.17 fefe 24: #if 0
1.16 fefe 25: int compint(const void *a,const void *b) {
26: /* printf("comparing %d with %d\n",*(int*)a,*(int*)b); */
27: return (*(int*)a-*(int*)b);
28: }
29:
30: #define SIZE 100000
31: #define LOOKFOR ((SIZE/2)-2)
32:
33: int array[SIZE];
34:
35: #define rdtscl(low) \
36: __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")
37:
38: static unsigned int seed=1;
39:
40: static int rand() {
41: return ((seed = seed * 1103515245 + 12345) % ((unsigned int)RAND_MAX + 1));
42: }
1.17 fefe 43: #endif
1.16 fefe 44:
1.24 fefe 45: extern double atof(const char *c);
46:
1.12 fefe 47: int main(int argc,char *argv[]) {
1.52 ! fefe 48: float my_float = 9.2334;
! 49: char buffer[100];
! 50:
! 51: sprintf(buffer, "%.2f", my_float);
! 52: fprintf(stdout, "%s", buffer);
! 53: #if 0
1.51 fefe 54: printf("%d\n",setenv("foo","bar",0));
55: printf("%d\n",setenv("foo","bar",1));
56: execlp("printenv","printenv","foo",0);
1.52 ! fefe 57: #endif
1.51 fefe 58: #if 0
1.50 fefe 59: if (!fnmatch("s*", "sub", 0))
60: printf("s* sub\n");
61: if (!fnmatch("s*", "glob", 0))
62: printf("s* glob\n");
63: if (!fnmatch("s*b", "sub", 0))
64: printf("s*b sub\n");
65: if (!fnmatch("s*h", "sub", 0))
66: printf("s*h sub\n");
1.51 fefe 67: #endif
1.49 fefe 68: #if 0
1.48 fefe 69: char*tmp;
70: int n=asprintf(&tmp,"foo %s %d\n","bar",23);
71: write(1,tmp,n);
72: free(tmp);
1.49 fefe 73: #endif
1.41 fefe 74: #if 0
1.40 fefe 75: struct passwd *p=getpwnam("leitner");
1.41 fefe 76: struct spwd *s=getspnam("leitner");
1.39 fefe 77: printf("%g\n",30.0123);
1.41 fefe 78: #endif
1.43 fefe 79: #if 0
1.42 fefe 80: initgroups("root",100);
1.43 fefe 81: #endif
1.38 fefe 82: #if 0
1.37 fefe 83: time_t t=time(0);
84: puts(asctime(localtime(&t)));
1.38 fefe 85: #endif
1.37 fefe 86: #if 0
1.36 fefe 87: struct servent *foo=getservbyname("ident","tcp");
88: if (foo)
89: printf("found service %s on port %d\n",foo->s_name,foo->s_port);
1.37 fefe 90: #endif
1.35 fefe 91: #if 0
1.33 fefe 92: char buf[128];
93: strcpy(buf,"/tmp/foo.XXXXXXX");
94: printf("%d\n",mkstemp(buf));
1.34 fefe 95: printf("%s\n",buf);
96: unlink(buf);
1.35 fefe 97: #endif
1.33 fefe 98: #if 0
1.32 fefe 99: char buf[512]="foo";
100: strncat(buf,"barbaz",3);
101: puts(buf);
1.33 fefe 102: #endif
1.32 fefe 103: #if 0
1.31 fefe 104: time_t oink=time(0);
105: struct tm *duh=localtime(&oink);
106: strftime(buf,512,"%A %B %Y\n",duh);
107: puts(buf);
1.32 fefe 108: #endif
1.31 fefe 109: #if 0
1.28 fefe 110: struct in_addr bar;
111: struct hostent *foo;
1.29 fefe 112: /* inet_aton("160.45.10.8",&bar); */
113: foo=gethostbyname("zeit.fu-berlin.de");
114: /* foo=gethostbyaddr(&bar,4,AF_INET); */
1.30 fefe 115: if (foo)
116: printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr));
1.22 fefe 117: /* printf("%g %g\n",1e-10,1e10); */
1.31 fefe 118: #endif
1.18 fefe 119: #if 0
1.17 fefe 120: double d=0.0;
121: long long t=0x12345678ABCDEF01;
122: d/=0.0;
123: printf("%d %llx\n",__isnan(d),t,*(long long*)&d);
1.18 fefe 124: #endif
1.17 fefe 125: #if 0
1.16 fefe 126: int i,j;
127: long a,b,c;
128: int *res;
129: printf("%p\n",malloc(0));
130: qsort(array,2,sizeof(int),compint);
131: for (i=0; i<SIZE; ++i)
132: array[i]=rand();
133: rdtscl(a);
134: qsort(array,SIZE,sizeof(int),compint);
135: rdtscl(b);
136: j=array[LOOKFOR];
137: res=bsearch(&j,array,SIZE,sizeof(int),compint);
138: rdtscl(c);
139: printf("%lu cycles sort, %lu cycles bsearch\n",b-a,c-b);
140: for (i=0; i<SIZE-1; ++i)
141: if (array[i]>array[i+1]) {
142: printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]);
143: return 1;
144: }
145: if (*res!=j)
146: printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j);
147: /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */
1.17 fefe 148: #endif
1.13 fefe 149: #if 0
1.12 fefe 150: struct in_addr duh;
151: printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh));
152: printf("%x\n",duh.s_addr);
1.13 fefe 153: #endif
1.12 fefe 154: /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */
1.11 fefe 155: #if 0
1.10 fefe 156: char buf[100];
157: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
158: fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf));
1.11 fefe 159: #endif
1.9 fefe 160: #if 0
1.7 fefe 161: struct tm duh;
162: time_t t;
1.8 fefe 163: time(&t);
164: gmtime_r(&t,&duh);
165: printf("%s\n",asctime(&duh));
1.9 fefe 166: #endif
1.8 fefe 167: #if 0
1.7 fefe 168: char buf[30];
169: duh.tm_sec=42;
170: duh.tm_min=23;
171: duh.tm_hour=17;
172: duh.tm_mday=2;
173: duh.tm_mon=7;
174: duh.tm_year=100;
175: t=mktime(&duh);
176: printf("%s\n",asctime_r(&duh,buf));
1.8 fefe 177: #endif
1.2 fefe 178: #if 0
1.1 cvs 179: int i;
180: for (i=0; i<5; i++) {
181: fprintf(stdout,"first message\n");
182: fprintf(stdout,"second message\n");
183: fprintf(stdout,"third message\n");
184: printf("foo %d\n",i);
185: }
1.2 fefe 186: #endif
1.1 cvs 187: #if 0
188: char buf[1024];
189: sscanf("foo bar","%s",buf);
190: printf("%s\n",buf);
191: #endif
192: #if 0
193: mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL);
194: perror("mount");
195: #endif
196: #if 0
197: char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))";
198: int i=strtol(t+1,&t,10);
199: printf("%d %s\n",i,t);
200: #endif
201: #if 0
202: char **tmp;
203: putenv("FOO");
204: assert(1==2);
205: for (tmp=environ; *tmp; tmp++)
206: puts(*tmp);
207: #endif
208: #if 0
209: char buf[1024];
210: printf("%d\n",fprintf(stderr,"duh\n"));
211: #endif
212: #if 0
213: struct passwd *p=getpwuid(100);
214: puts(p->pw_name);
215: #endif
216: #if 0
217: int pid;
218: char name[32];
219: sscanf("1 (init","%d (%15c",&pid,name);
220: printf("pid %d name %s\n",pid,name);
221: #endif
222: #if 0
223: DIR *d=opendir("/proc");
224: if (d) {
225: struct dirent *D;
226: while (D=readdir(d))
227: puts(D->d_name);
228: closedir(d);
229: }
230: #endif
231: #if 0
232: char buf[1024];
233: int fd=open("/etc/passwd",0);
234: pread(fd,buf,30,32);
235: close(fd);
236: write(1,buf,32);
237: #endif
238: #if 0
239: char *argv[] = {"echo","foo",0};
240: char buf[100];
241: buf[5]='x';
242: sprintf(buf,"foo\n");
243: if (buf[5] == 'x')
244: exit(0);
245: else
246: exit(1);
247: execvp(argv[0],argv);
248: #endif
1.10 fefe 249: #if 0
1.1 cvs 250: struct stat64 f;
251: char buf[128];
252: fstat64(0,&f);
253: fprintf(stderr,"%d %d\n",f.st_size,sizeof(f));
254: return 0;
255: #endif
256: #if 0
257: FILE *f=fopen("foo","w");
258: fputc('a',f);
259: fputc('b',f);
260: fputc('c',f);
261: #endif
262: /* fprintf(stdout,"foo\n"); */
263: }
LinuxTV legacy CVS <linuxtv.org/cvs>
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to t.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [DVB] / dietlibc