diff options
Diffstat (limited to '')
| -rw-r--r-- | command_line/CmdLine/Src/CLBrowser.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/command_line/CmdLine/Src/CLBrowser.c b/command_line/CmdLine/Src/CLBrowser.c index e69de29..826d395 100644 --- a/command_line/CmdLine/Src/CLBrowser.c +++ b/command_line/CmdLine/Src/CLBrowser.c @@ -0,0 +1,217 @@ +#include "cmdline.h" + +typedef struct { + UInt16 fileID; + char *filepath; +} S43; + +typedef struct { + UInt16 fileID; + char unused[12]; + UInt16 filename_length; + char filepath[1]; +} S49; + +typedef struct { + char magic_word[4]; + char version; + char big_endian; + char padding[16]; + UInt16 file_data_count; + UInt32 browse_data_offset; + UInt32 browse_data_length; + UInt32 file_data_offset; + UInt32 file_data_length; +} T53; + +static void GetBrowseTableInfoAndLock(OSHandle *browsetable, S43 **scan, SInt32 *num, SInt32 *size) { + UInt32 tsize; + + OS_GetHandleSize(browsetable, &tsize); + if (scan) + *scan = OS_LockHandle(browsetable); + if (num) + *num = tsize / sizeof(S43); + if (size) + *size = tsize; +} + +int Browser_Initialize(OSHandle *browsetableptr) { + int err = OS_NewHandle(0, browsetableptr); + if (err) { + CLReportOSError(63, err, "allocate", "browse file table"); + return 0; + } else { + return 1; + } +} + +static int Destroy(OSHandle *browsetable) { + S43 *scan; + SInt32 num; + + GetBrowseTableInfoAndLock(browsetable, &scan, &num, NULL); + while (num--) { + xfree(scan->filepath); + scan++; + } + OS_UnlockHandle(browsetable); + return 1; +} + +int Browser_Terminate(OSHandle *browsetableptr) { + if (!Destroy(browsetableptr)) { + return 0; + } else { + OS_FreeHandle(browsetableptr); + return 1; + } +} + +int Browser_SearchFile(OSHandle *browsetable, const char *fullpath, SInt16 *ID) { + S43 *scan; + SInt32 cnt; + SInt32 idx; + SInt32 size; + Boolean found = 0; + +#line 114 + OPTION_ASSERT(OS_IsFullPath(fullpath)); + OPTION_ASSERT(browsetable!=NULL); + + GetBrowseTableInfoAndLock(browsetable, &scan, &cnt, &size); + for (idx = 0; idx < cnt; idx++) { + if (OS_EqualPath(fullpath, scan->filepath)) { + found = 1; + break; + } + scan++; + } + + if (found) + *ID = scan->fileID; + else + *ID = 0; + + OS_UnlockHandle(browsetable); + return found; +} + +int Browser_SearchAndAddFile(OSHandle *browsetable, const char *fullpath, SInt16 *ID) { + S43 *scan; + SInt32 cnt; + SInt32 size; + char *pathptr; + + if (!Browser_SearchFile(browsetable, fullpath, ID)) { + pathptr = xstrdup(fullpath); + GetBrowseTableInfoAndLock(browsetable, &scan, &cnt, &size); + OS_UnlockHandle(browsetable); + if (OS_ResizeHandle(browsetable, sizeof(S43) * (cnt + 1))) { + fprintf(stderr, "\n*** Out of memory\n"); + exit(-23); + } + + scan = (S43 *) (((char *) OS_LockHandle(browsetable)) + size); + scan->filepath = pathptr; + scan->fileID = cnt + 1; + OS_UnlockHandle(browsetable); + + *ID = scan->fileID; + return -1; + } else { + return 1; + } +} + +static SInt32 CalcDiskSpaceRequirements(S43 *mem, int num) { + SInt32 space = 0; + while (num--) { + space += 0x10; + space += (strlen(mem->filepath) + 7) & ~7; + mem++; + } + return space; +} + +static int ConvertMemToDisk(S43 *mem, S49 *disk, int num) { + int slen; + int blen; + + while (num--) { + disk->fileID = mem->fileID; + memset(disk->unused, 0, sizeof(disk->unused)); + slen = strlen(mem->filepath); + blen = (slen + 7) & ~7; + disk->filename_length = slen; + memset(disk->filepath, 0, blen); + strncpy(disk->filepath, mem->filepath, slen); + disk = (S49 *) (((unsigned char *) disk) + 0x10 + blen); + mem++; + } + + return 1; +} + +int Browser_PackBrowseFile(Handle browsedata, OSHandle *browsetable, OSHandle *browsefileptr) { + OSHandle h; + char *ptr; + T53 header; + S43 *scan; + SInt32 entries; + UInt32 datasize; + UInt32 tableoffs; + UInt32 tablesize; + UInt32 totalsize; + SInt32 a_long = 1; + int err; + void *bptr; + +#line 253 + OPTION_ASSERT(browsedata!=NULL); + OPTION_ASSERT(browsetable!=NULL); + + datasize = GetHandleSize(browsedata); + tableoffs = (datasize + sizeof(header) + 7) & ~7; + + GetBrowseTableInfoAndLock(browsetable, &scan, &entries, NULL); + tablesize = CalcDiskSpaceRequirements(scan, entries); + OS_UnlockHandle(browsetable); + + totalsize = tablesize + tableoffs; + + memcpy(header.magic_word, "DubL", 4); + header.version = 1; + header.big_endian = *((char *) &a_long) == 0; + memset(header.padding, 0, sizeof(header.padding)); + + header.browse_data_offset = sizeof(header); + header.browse_data_length = datasize; + header.file_data_offset = tableoffs; + header.file_data_length = tablesize; + header.file_data_count = entries; + + err = OS_NewHandle(totalsize, &h); + *browsefileptr = h; + if (err) { + fprintf(stderr, "\n*** Out of memory\n"); + exit(-23); + } + + ptr = OS_LockHandle(&h); + memcpy(ptr, &header, sizeof(header)); + + HLock(browsedata); + memcpy(&ptr[sizeof(header)], *browsedata, datasize); + // an 'add' for this is swapped around and i cannot fucking figure out why + memset(&ptr[sizeof(header) + datasize], 0, tableoffs - sizeof(header) - datasize); + HUnlock(browsedata); + + GetBrowseTableInfoAndLock(browsetable, &scan, &entries, NULL); + ConvertMemToDisk(scan, bptr = ptr + tableoffs, entries); + memset((char *) bptr + tablesize, 0, totalsize - tableoffs - tablesize); + OS_UnlockHandle(browsetable); + OS_UnlockHandle(&h); + return 1; +} + |