57   UstarHeader Hdr = {};  in makeUstarHeader()  local
58   memcpy(Hdr.Magic, "ustar", 5); // Ustar magic  in makeUstarHeader()
59   memcpy(Hdr.Version, "00", 2);  // Ustar version  in makeUstarHeader()
60   return Hdr;  in makeUstarHeader()
88 static void computeChecksum(UstarHeader &Hdr) {  in computeChecksum()  argument
91   memset(Hdr.Checksum, ' ', sizeof(Hdr.Checksum));  in computeChecksum()
95   for (size_t I = 0; I < sizeof(Hdr); ++I)  in computeChecksum()
96     Chksum += reinterpret_cast<uint8_t *>(&Hdr)[I];  in computeChecksum()
97   snprintf(Hdr.Checksum, sizeof(Hdr.Checksum), "%06o", Chksum);  in computeChecksum()
107   UstarHeader Hdr = makeUstarHeader();  in writePaxHeader()  local
108   snprintf(Hdr.Size, sizeof(Hdr.Size), "%011zo", PaxAttr.size());  in writePaxHeader()
109   Hdr.TypeFlag = 'x'; // PAX magic  in writePaxHeader()
110   computeChecksum(Hdr);  in writePaxHeader()
113   OS << StringRef(reinterpret_cast<char *>(&Hdr), sizeof(Hdr));  in writePaxHeader()
159   UstarHeader Hdr = makeUstarHeader();  in writeUstarHeader()  local
160   memcpy(Hdr.Name, Name.data(), Name.size());  in writeUstarHeader()
161   memcpy(Hdr.Mode, "0000664", 8);  in writeUstarHeader()
162   snprintf(Hdr.Size, sizeof(Hdr.Size), "%011zo", Size);  in writeUstarHeader()
163   memcpy(Hdr.Prefix, Prefix.data(), Prefix.size());  in writeUstarHeader()
164   computeChecksum(Hdr);  in writeUstarHeader()
165   OS << StringRef(reinterpret_cast<char *>(&Hdr), sizeof(Hdr));  in writeUstarHeader()