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XrdOucN2No2p.cc File Reference
#include <algorithm>
#include <cerrno>
#include <cstdio>
#include <string>
#include <cstring>
#include <unistd.h>
#include "XrdVersion.hh"
#include "XrdOuc/XrdOucName2Name.hh"
#include "XrdOuc/XrdOucTokenizer.hh"
#include "XrdSys/XrdSysError.hh"
+ Include dependency graph for XrdOucN2No2p.cc:

Go to the source code of this file.

Classes

class  XrdOucN2No2p
 

Functions

XrdOucName2NameXrdOucgetName2Name (XrdOucgetName2NameArgs)
 
unsigned long XrdOucHashVal2 (const char *KeyVal, int KeyLen)
 
 XrdVERSIONINFO (XrdOucgetName2Name, "XrdN2No2p")
 

Function Documentation

◆ XrdOucgetName2Name()

XrdOucName2Name * XrdOucgetName2Name ( XrdOucgetName2NameArgs  )

Definition at line 197 of file XrdOucN2No2p.cc.

198{
199 struct bHelper {char *p; bHelper(const char *bP) : p(bP ? strdup(bP) : 0) {}
200 ~bHelper() {if (p) free(p);}
201 };
202 bHelper prms(parms);
203 const char *oPfx;
204 char *val, *eP;
205 std::string ostr;
206 int fnMax = 0, n;
207 char sChar = '\\';
208
209// Process options
210//
211 XrdOucTokenizer toks(prms.p);
212 toks.GetLine();
213 while((val = toks.GetToken()) && *val)
214 { if (!strcmp(val, "-slash"))
215 {if (!(val = toks.GetToken()) || !(*val))
216 {eDest->Emsg("N2No2p", "-slash argument not specified.");
217 return 0;
218 }
219 if (strlen(val) == 1) {sChar = *val; continue;}
220 n = strtol(val, &eP, 16);
221 if (n & 0xff || *eP)
222 {eDest->Emsg("N2No2p", "Invalid -slash argument -",val);
223 return 0;
224 }
225 sChar = static_cast<char>(n);
226 }
227 else if (!strcmp(val, "-maxfnlen"))
228 {if (!(val = toks.GetToken()) || !(*val))
229 {eDest->Emsg("N2No2p", "-maxfnlen argument not specified.");
230 return 0;
231 }
232 fnMax = strtol(val, &eP, 16);
233 if (fnMax <= 0 || *eP)
234 {eDest->Emsg("N2No2p", "Invalid -maxfnlen argument -",val);
235 return 0;
236 }
237 }
238 else break;
239 }
240
241// Obtain the objectid prefix we are to use (default is '/')
242//
243 if (!val || !(*val)) oPfx = "/";
244 else {if (*val != '/')
245 {eDest->Emsg("N2No2p", "Invalid object ID path prefix -", val);
246 return 0;
247 }
248 oPfx = val;
249 n = strlen(val);
250 if (val[n-1] != '/') {ostr = val; ostr += '/'; oPfx = ostr.c_str();}
251 }
252
253// Now determine what the maximum filename length if not specified
254//
255 if (!fnMax)
256 if ((fnMax = pathconf("/", _PC_NAME_MAX)) < 0)
257 {eDest->Emsg("N2No2p", errno, "determine -fnmaxlen for '/'; using 255.");
258 fnMax = 255;
259 }
260
261// Return a new n2n object
262//
263 return new XrdOucN2No2p(eDest, lroot, oPfx, fnMax, sChar);
264}
static XrdSysError eDest(0,"crypto_")
long pathconf(const char *path, int name)
int Emsg(const char *esfx, int ecode, const char *text1, const char *text2=0)

References eDest, XrdSysError::Emsg(), XrdOucTokenizer::GetLine(), XrdOucTokenizer::GetToken(), and pathconf().

Referenced by XrdOucN2NLoader::Load().

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◆ XrdOucHashVal2()

unsigned long XrdOucHashVal2 ( const char *  KeyVal,
int  KeyLen 
)
extern

Definition at line 40 of file XrdOucHashVal.cc.

41{ int j;
42 unsigned long *lp, lword, hval = 0;
43 int hl = sizeof(hval);
44
45// If name is shorter than the hash length, use the name.
46//
47 if (KeyLen <= hl)
48 {memcpy(&hval, KeyVal, (size_t)KeyLen);
49 return hval;
50 }
51
52// Compute the length of the name and develop starting hash.
53//
54 hval = KeyLen;
55 j = KeyLen % hl; KeyLen /= hl;
56 if (j)
57 {memcpy(&lword, KeyVal, (size_t)hl);
58 hval ^= lword;
59 }
60 lp = (unsigned long *)&KeyVal[j];
61
62// Compute and return the full hash.
63//
64 while(KeyLen--)
65 {memcpy(&lword, lp++, (size_t)hl);
66 hval ^= lword;
67 }
68 return (hval ? hval : 1);
69}

Referenced by XrdOucN2No2p::pfn2lfn(), and XrdOucHashVal().

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◆ XrdVERSIONINFO()

XrdVERSIONINFO ( XrdOucgetName2Name  ,
"XrdN2No2p"   
)