#define _GNU_SOURCE #define _FILE_OFFSET_BITS 64 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef __dietlibc__ #include #include #endif #if 0 static const char* Ident; static int Option; static int Facility; static struct sockaddr_un sock; static int fd=-1; static void syslogconnect(void) { sock.sun_family=AF_UNIX; strcpy(sock.sun_path,"/dev/log"); if ((fd=socket(AF_UNIX,SOCK_STREAM,0))==-1) return; if (connect(fd,(struct sockaddr*)&sock,sizeof(sock))==-1) { int save=errno; close(fd); fd=-1; } fcntl(fd,F_SETFL,FD_CLOEXEC); /* doesn't work? too bad */ } void openlog(const char *ident, int option, int facility) { Ident=ident; Option=option; Facility=facility; syslogconnect(); } void syslog(int priority, const char *format, ...) { /* write(fd,"<13>Jun 29 19:21:32 leitner: fnord",...) */ } void closelog(void) { } #endif void foo(int tmp,...) { long long l; va_list va; va_start(va,tmp); l=va_arg(va,long long); if (l!=-1) write(2,"kaputt\n",7); } int compint(const void *a, const void *b) { register const int* A=a; register const int* B=b; return *B-*A; } extern char* strcpy2(char*a,char*b); #define rdtscl(low) \ __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx") int main(int argc,char *argv[]) { struct stat s; time_t t=time(0); struct tm* T; stat("/tmp/nyt.html",&s); T=gmtime(&s.st_mtime); #if 0 static struct mq_attr x; mqd_t a=mq_open("fnord",O_WRONLY|O_CREAT,0600,&x); mqd_t b=mq_open("fnord",O_RDONLY); #endif #if 0 struct statfs s; if (statfs("/tmp",&s)!=-1) { printf("%llu blocks, %llu free\n",(unsigned long long)s.f_blocks,(unsigned long long)s.f_bfree); } #endif #if 0 char* c=strndupa("fnord",3); puts(c); #endif #if 0 char buf[100]; __write2("foo!\n"); memset(buf,0,200); #endif #if 0 printf("%+05d\n",500); #endif #if 0 char* c; printf("%d\n",asprintf(&c,"foo %d",23)); puts(c); #endif #if 0 struct winsize ws; if (!ioctl(0, TIOCGWINSZ, &ws)) { printf("%dx%d\n",ws.ws_col,ws.ws_row); } #endif #if 0 struct termios t; if (tcgetattr(1,&t)) { puts("tcgetattr failed!"); return 1; } printf("%d\n",cfgetospeed(&t)); #endif #if 0 printf("%p\n",malloc(0)); #endif #if 0 char* argv[]={"sh","-i",0}; char buf[PATH_MAX+100]; int i; for (i=0; i|[]>:|}-][]>:|}-]*)",REG_EXTENDED)); printf("regexec %d\n",regexec(&r,"Marketing-Laufbahn hinterdir.",1,0,REG_NOSUB)); #endif #if 0 FILE *f=fopen("/home/leitner/Mail/outbox","r"); char buf[1024]; int i=0; if (f) { while (fgets(buf,1023,f)) { ++i; printf("%d %lu %s",i,ftell(f),buf); } } #endif #if 0 char template[]="/tmp/duh/fnord-XXXXXX"; printf("%d\n",mkdtemp(template)); #endif #if 0 char *inbuf="\xe2\x89\xa0"; // char *inbuf="\xc2\xa9"; char outbuf[100]; char *obptr=&outbuf; size_t iblen=strlen(inbuf); size_t oblen=100; iconv_t i=iconv_open("utf-8","utf-8"); iconv(i,&inbuf,&iblen,&obptr,&oblen); iconv_close(i); outbuf[100-oblen]=0; puts(outbuf); #endif #if 0 printf("%c %c\n",tolower('C'),toupper('c')); #endif #if 0 printf("foo\n"); #endif #if 0 char strport[10]; int i; for (i=0; i<10; ++i) strport[i]=i+'0'; snprintf( strport, sizeof(strport), "%d", 80 ); puts(strport); #endif #if 0 struct addrinfo *ai; struct addrinfo hints; char buf[16]; memset(&hints,0,sizeof(hints)); #if 0 hints.ai_family = AF_UNSPEC; hints.ai_flags = AI_PASSIVE; hints.ai_socktype = SOCK_STREAM; #endif hints.ai_family=0; hints.ai_flags=0; hints.ai_socktype=1; hints.ai_protocol=0; hints.ai_addrlen=0; hints.ai_addr=0; hints.ai_canonname=0; hints.ai_next=0; printf("%d\n",getaddrinfo("news.fu-berlin.de","119",&hints,&ai)); while (ai) { printf("found host %s, port %d, family %s, socktype %s\n",ai->ai_canonname, ntohs(ai->ai_family==AF_INET6?((struct sockaddr_in6*)ai->ai_addr)->sin6_port: ((struct sockaddr_in*)ai->ai_addr)->sin_port), ai->ai_family==AF_INET6?"PF_INET6":"PF_INET", ai->ai_socktype==SOCK_STREAM?"SOCK_STREAM":"SOCK_DGRAM"); { char buf[100]; inet_ntop(ai->ai_family,ai->ai_family==AF_INET6? (char*)&(((struct sockaddr_in6*)ai->ai_addr)->sin6_addr): (char*)&(((struct sockaddr_in*)ai->ai_addr)->sin_addr),buf,100); printf(" %s\n",buf); } ai=ai->ai_next; } #endif #if 0 char buf[101]; __dtostr(M_PI,buf,100,6); #endif #if 0 printf("%d\n",strcasecmp("foo","FOO")); #endif #if 0 printf("%.24s", "Sun Jan 2 08:29:13 1994\n"); #endif #if 0 printf("%.*s\n",13,"fnord"); #endif #if 0 double d=strtod(argv[1],0); printf("%g|\n",d); #endif #if 0 char buf[100]; printf("%d\n",__lltostr(buf,30,-1ll,10,0)); puts(buf); #endif #if 0 printf("%lld\n",-1ll); #endif #if 0 char *str="e"; setbuf(stdout,0); printf("foo\n"); fputc(toupper(*str++),stdout); printf("bar\n"); #endif #if 0 fwrite("foobar",6,1,stdout); #endif #if 0 char x[5]; x[4]='x'; fgets(x,4,stdin); puts(x); printf("%c\n",x[4]); #endif #if 0 char* paths[]={"/usr/lib","/usr/","usr","/",".",".."}; char* want[]={"/usr","/",".","/",".","."}; int i; for (i=0; i<6; ++i) { printf("%s\t%s\t%s\n",paths[i],want[i],dirname(strdup(paths[i]))); } #endif #if 0 char* paths[]={"/usr/lib","/usr/","usr","/",".",".."}; char* want[]={"lib","usr","usr","/",".",".."}; int i; for (i=0; i<6; ++i) { printf("%s\t%s\t%s\n",paths[i],want[i],basename(strdup(paths[i]))); } #endif #if 0 int i; for (i=0; i<255; ++i) { int a=isalpha(i); int b=(i>='a' && i<='z') || (i>='A' && i<='Z'); if (a!=b) printf("%d: %d %d\n",i,a,b); } #endif #if 0 char* name; int ptyfd,ttyfd; int i=openpty(&ptyfd,&ttyfd,0,0,0); if (i<0) perror("openpty"); printf("%d %d\n",ptyfd,ttyfd); printf("%s %s\n",ttyname(ptyfd),ttyname(ttyfd)); #endif #if 0 printf("0x%8.7lx\n",0xfefe); #endif #if 0 puts(ttyname(0)); #endif #if 0 char buf[1024]; struct hostent* r; int i=0; r=gethostbyname("cyberelks.net"); again: if (!r) { printf("dns error: %s\n",hstrerror(h_errno)); } { /* while (r=gethostent_r(buf,1024)) { */ if (r && r->h_name) { int i; printf("name \"%s\"; ", r->h_name); for (i=0; i<8; ++i) if (r->h_aliases[i]) { printf("alias \"%s\"; ",r->h_aliases[i]); } else break; if ((r->h_addr_list)[0]) { struct in_addr address; address = *((struct in_addr *) (r->h_addr_list)[0]); printf("addr %s; ", inet_ntoa(address)); } putchar('\n'); } } if (!i) { i=1; r=gethostbyname("prdownloads.sourceforge.net"); goto again; } #endif #if 0 char *tmp; printf("%lu\n",strtol("0xf0000000",&tmp,0)); #endif #if 0 struct mntent* me; FILE* f=fopen("/etc/fstab","r"); while (me=getmntent(f)) { printf("%s\n",hasmntopt(me,"defaults")); printf("%s %s %s %s %d %d\n",me->mnt_fsname,me->mnt_dir,me->mnt_type,me->mnt_opts,me->mnt_freq,me->mnt_passno); break; } #endif #if 0 char *tmp; printf("%x\n",strtol("0Xffff",&tmp,16)); #endif /* putchar('c'); write(1,"fnord\n",6); */ #if 0 struct addrinfo *ai; // getaddrinfo("xorn","22",0,&ai); puts(gai_strerror(getaddrinfo("xorn","22",0,&ai))); #endif #if 0 struct hostent host,*res; char buf[4096]; int fnord; gethostbyname2_r("nagus",AF_INET,&host,buf,4096,&res,&fnord); #endif #if 0 char buf[128]; strcpy(buf,"/tmp/fnord/foo.XXXXXXX"); printf("%d\n",mkdtemp(buf)); printf("%s\n",buf); #endif #if 0 printf("%d\n",WEXITSTATUS(system("exit 17"))); #endif #if 0 fnord("fnord","foo\n","bar\n",0); assert(0); #endif #if 0 printf("%hd %hhd\n",-5,-1234567); #endif #if 0 printf("%d\n",fnmatch("*.o", "x.o", FNM_PATHNAME)); printf("%d\n",fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME)); #endif #if 0 char buf[1024]; int len; len=res_search("fu-berlin.de",ns_c_in,ns_t_ns,buf,sizeof(buf)); #endif #if 0 regex_t t; regmatch_t rm; // regcomp(&t,"^ *read",0); regcomp(&t,"\\",0); printf("%d\n",regexec(&t," blub foo,",1,&rm,0)); printf("ofs %d\n",rm.rm_so); #endif #if 0 char buf[100]; printf("%d\n",fread(buf,1,0,stdin)); #endif #if 0 char buf[100]; memset(buf,17,100); buf[0]=0; strncat(buf,"foobarbaz23",10); puts(buf); #endif #if 0 int aflag = 0; int bflag = 0; char *cvalue = NULL; int index; int c; opterr = 1; while ((c = getopt (argc, argv, "abc:")) != -1) switch (c) { case 'a': aflag = 1; break; case 'b': bflag = 1; break; case 'c': cvalue = optarg; break; case '?': if (isprint (optopt)) fprintf (stderr, "Unknown option `-%c'.\n", optopt); else fprintf (stderr, "Unknown option character `\\x%x'.\n", optopt); return 1; default: abort (); } printf ("aflag = %d, bflag = %d, cvalue = %s\n", aflag, bflag, cvalue); for (index = optind; index < argc; index++) printf ("Non-option argument %s\n", argv[index]); return 0; #endif #if 0 char *t="foobar"; char *c; char buf[1000]; puts(strcat(strcpy(buf,"HOME="),t)); #endif #if 0 struct netent* n=getnetbyname("loopback"); printf("%s %s\n",n->n_name,inet_ntoa(*(struct in_addr*)&n->n_net)); #endif #if 0 fprintf(stdout,"foo\n"); sleep(1); fprintf(stdout,"bar"); fprintf(stderr,"blonk"); sleep(1); fprintf(stdout,"\rbz"); sleep(1); fprintf(stdout,"\n"); sleep(1); #endif #if 0 sigset_t s; /* sigsetops */ sigemptyset(&s); sigaddset(&s,SIGCHLD); sigaddset(&s,SIGHUP); sigsuspend(&s); #endif #if 0 char buf[1024]; FILE *f=popen("uname -srm","r"); fgets(buf,1023,f); pclose(f); write(1,buf,strlen(buf)); #endif #if 0 char type[64]; char filename[256]; int major,minor; int len; printf("%d\n",sscanf("GET / HTTP/1.0\r\n","%4[A-Z] %255[^ \t\r\n] HTTP/%d.%d",type,filename,&major,&minor)); printf("%s %s %d %d\n",type,filename,major,minor); #endif #if 0 char buf[100]; char ip[16]; memset(ip,0,16); printf("%p %p\n",inet_ntop(AF_INET6,ip,buf,100),buf); puts(buf); #endif #if 0 struct addrinfo *ai; struct addrinfo hints; char buf[16]; hints.ai_family = AF_UNSPEC; hints.ai_flags = AI_PASSIVE|AI_CANONNAME; hints.ai_socktype = SOCK_STREAM; printf("%d\n",getaddrinfo("xorn.continuum.local","ssh",0,&ai)); while (ai) { printf("found host %s, port %d, family %s, socktype %s\n",ai->ai_canonname, ntohs(ai->ai_family==AF_INET6?((struct sockaddr_in6*)ai->ai_addr)->sin6_port: ((struct sockaddr_in*)ai->ai_addr)->sin_port), ai->ai_family==AF_INET6?"PF_INET6":"PF_INET", ai->ai_socktype==SOCK_STREAM?"SOCK_STREAM":"SOCK_DGRAM"); { char buf[100]; inet_ntop(ai->ai_family,ai->ai_family==AF_INET6? (char*)&(((struct sockaddr_in6*)ai->ai_addr)->sin6_addr): (char*)&(((struct sockaddr_in*)ai->ai_addr)->sin_addr),buf,100); printf(" %s\n",buf); } ai=ai->ai_next; } #endif #if 0 int i=foo; printf("load average is %3.2f\n",0.0); #endif #if 0 struct dirent **namelist; int n; n = scandir(".", &namelist, 0, alphasort); if (n < 0) perror("scandir"); else { while(n--) { printf("%s\n", namelist[n]->d_name); free(namelist[n]); } free(namelist); } #endif #if 0 char foo[10]="none,zlib"; char *tmp,*tmp2=foo; while (tmp=strsep(&tmp2,",")) { puts(tmp); } #endif #if 0 char foo[10]; printf("%d %d\n",abs(-3),abs(23)); strcpy(foo,"foo"); strncat(foo,"barbaz",3); foo[6]=0; puts(foo); #endif #if 0 struct hostent * host; struct in_addr i; host = gethostbyname2("nagus",AF_INET); if (!host) printf("host null\n"); if (host && host->h_name) { printf("name %s\n", host->h_name); } if (host && (host->h_addr_list)[0]) { struct in_addr address; address = *((struct in_addr *) (host->h_addr_list)[0]); printf("addr %s\n", inet_ntoa(address)); } #endif #if 0 struct msgbuf bla; bla.mtype=0; bla.mtext[0]='x'; msgsnd(327680,&bla,5,IPC_NOWAIT); #endif #if 0 char buf[PATH_MAX]; printf("%s\n",realpath("../../incoming/..///.zshrc",buf)); #endif #if 0 regex_t t; regcomp(&t,"^OpenSSH_2\\.5\\.[012]",5); printf("%d\n",regexec(&t,"OpenSSH_2.5.2p2",0,0,0)); #endif #if 0 float my_float = 9.2334; char buffer[100]; sprintf(buffer, "%.2f", my_float); fprintf(stdout, "%s", buffer); #endif #if 0 printf("%d\n",setenv("foo","bar",0)); printf("%d\n",setenv("foo","bar",1)); execlp("printenv","printenv","foo",0); #endif #if 0 printf("%d\n",fnmatch("*c*","bin",0)); if (!fnmatch("s*", "sub", 0)) printf("s* sub\n"); if (!fnmatch("s*", "glob", 0)) printf("s* glob\n"); if (!fnmatch("s*b", "sub", 0)) printf("s*b sub\n"); if (!fnmatch("s*h", "sub", 0)) printf("s*h sub\n"); #endif #if 0 char*tmp; int n=asprintf(&tmp,"foo %s %d\n","bar",23); write(1,tmp,n); free(tmp); #endif #if 0 struct passwd *p=getpwnam("leitner"); struct spwd *s=getspnam("leitner"); printf("%g\n",30.0123); #endif #if 0 initgroups("root",100); #endif #if 0 time_t t=time(0); printf("%lu\n",t); puts(asctime(localtime(&t))); #endif #if 0 struct servent *foo=getservbyname("pop-3","tcp"); if (foo) printf("found service %s on port %d\n",foo->s_name,foo->s_port); #endif #if 0 char buf[128]; strcpy(buf,"/tmp/blub/foo.XXXXXXX"); printf("%d\n",mkstemp(buf)); printf("%s\n",buf); unlink(buf); #endif #if 0 char buf[512]="foo"; strncat(buf,"barbaz",3); puts(buf); #endif #if 0 time_t oink=time(0); struct tm *duh=localtime(&oink); strftime(buf,512,"%A %B %Y\n",duh); puts(buf); #endif #if 0 struct in_addr bar; struct hostent *foo; inet_aton("160.45.10.8",&bar); /* foo=gethostbyname("zeit.fu-berlin.de"); */ foo=gethostbyaddr(&bar,4,AF_INET); if (foo) printf("%s -> %s\n",foo->h_name,inet_ntoa(*(struct in_addr*)foo->h_addr)); /* printf("%g %g\n",1e-10,1e10); */ #endif #if 0 double d=0.0; long long t=0x12345678ABCDEF01; d/=0.0; printf("%d %llx\n",__isnan(d),t,*(long long*)&d); #endif #if 0 #define SIZE 1000 int array[SIZE],array2[SIZE]; int i,j; long a,b,c; int *k; for (i=0; iarray[i+1]); k=bsearch(array+10,array,SIZE,sizeof(int),compint); printf("%d\n",*k); #endif #if 0 printf("%p\n",malloc(0)); qsort(array,2,sizeof(int),compint); for (i=0; iarray[i+1]) { printf("qsort does not work, index %d: %d > %d\n",i,array[i],array[i+1]); return 1; } if (*res!=j) printf("besearch does not work, returned %p (%d) instead of %p (%d)\n",res,res?*res:-1,array+LOOKFOR,j); /* printf("array={%d,%d,%d,%d,%d}\n",array[0],array[1],array[2],array[3],array[4]); */ #endif #if 0 struct in_addr duh; printf("%d\n",inet_aton(argv[1]?argv[1]:"10.0.0.1",&duh)); printf("%x\n",duh.s_addr); #endif /* printf("%-19s %10lu %9lu %9lu %3d%% %s\n","/dev/ide/host0/bus0/target0/lun0/part2",8393688,705683,1337084,85,"/"); */ #if 0 char buf[100]; fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf)); fgets(buf,100,stdin); printf("got %d bytes\n",strlen(buf)); #endif #if 0 struct tm duh; time_t t; time(&t); gmtime_r(&t,&duh); printf("%s\n",asctime(&duh)); #endif #if 0 char buf[30]; duh.tm_sec=42; duh.tm_min=23; duh.tm_hour=17; duh.tm_mday=2; duh.tm_mon=7; duh.tm_year=100; t=mktime(&duh); printf("%s\n",asctime_r(&duh,buf)); #endif #if 0 int i; for (i=0; i<5; i++) { fprintf(stdout,"first message\n"); fprintf(stdout,"second message\n"); fprintf(stdout,"third message\n"); printf("foo %d\n",i); } #endif #if 0 char buf[1024]; sscanf("foo bar","%s",buf); printf("%s\n",buf); #endif #if 0 mount("/dev/scsi/host0/bus0/target2/lun0/cd", "/cd", "iso9660", MS_MGC_VAL|MS_RDONLY, NULL); perror("mount"); #endif #if 0 char *t="<4>Linux version 2.4.0-test10 (leitner@hellhound) (gcc version 2.95.2 19991024 (release))"; int i=strtol(t+1,&t,10); printf("%d %s\n",i,t); #endif #if 0 char **tmp; putenv("A=foo"); for (tmp=environ; *tmp; tmp++) puts(*tmp); #endif #if 0 char buf[1024]; printf("%d\n",fprintf(stderr,"duh\n")); #endif #if 0 struct passwd *p=getpwuid(100); puts(p->pw_name); #endif #if 0 int pid; char name[32]; sscanf("1 (init","%d (%15c",&pid,name); printf("pid %d name %s\n",pid,name); #endif #if 0 DIR *d=opendir("/proc"); if (d) { struct dirent *D; while (D=readdir(d)) puts(D->d_name); closedir(d); } #endif #if 0 char buf[1024]; int fd=open("/etc/passwd",0); pread(fd,buf,30,32); close(fd); write(1,buf,32); #endif #if 0 char *argv[] = {"echo","foo",0}; char buf[100]; buf[5]='x'; sprintf(buf,"foo\n"); if (buf[5] == 'x') exit(0); else exit(1); execvp(argv[0],argv); #endif #if 0 struct stat64 f; char buf[128]; fstat64(0,&f); fprintf(stderr,"%d %d\n",f.st_size,sizeof(f)); return 0; #endif #if 0 FILE *f=fopen("foo","w"); fputc('a',f); fputc('b',f); fputc('c',f); #endif /* fprintf(stdout,"foo\n"); */ }