diff options
Diffstat (limited to 'unix/tclUnixFCmd.c')
| -rw-r--r-- | unix/tclUnixFCmd.c | 135 |
1 files changed, 87 insertions, 48 deletions
diff --git a/unix/tclUnixFCmd.c b/unix/tclUnixFCmd.c index a695e9c..559992f 100644 --- a/unix/tclUnixFCmd.c +++ b/unix/tclUnixFCmd.c @@ -62,6 +62,16 @@ #define DOTREE_F 3 /* regular file */ /* + * Fallback temporary file location the temporary file generation code. Can be + * overridden at compile time for when it is known that temp files can't be + * written to /tmp (hello, iOS!). + */ + +#ifndef TCL_TEMPORARY_FILE_DIRECTORY +#define TCL_TEMPORARY_FILE_DIRECTORY "/tmp" +#endif + +/* * Callbacks for file attributes code. */ @@ -1320,9 +1330,9 @@ GetGroupAttribute( if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - TclGetString(fileName), "\": ", - Tcl_PosixError(interp), NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not read \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -1374,9 +1384,9 @@ GetOwnerAttribute( if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - TclGetString(fileName), "\": ", - Tcl_PosixError(interp), NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not read \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -1425,9 +1435,9 @@ GetPermissionsAttribute( if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - TclGetString(fileName), "\": ", - Tcl_PosixError(interp), NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not read \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -1478,9 +1488,10 @@ SetGroupAttribute( if (groupPtr == NULL) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not set group for file \"", - TclGetString(fileName), "\": group \"", string, - "\" does not exist", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not set group for file \"%s\":" + " group \"%s\" does not exist", + TclGetString(fileName), string)); Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SETGRP", "NO_GROUP", NULL); } @@ -1494,9 +1505,9 @@ SetGroupAttribute( if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not set group for file \"", - TclGetString(fileName), "\": ", Tcl_PosixError(interp), - NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not set group for file \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -1544,9 +1555,10 @@ SetOwnerAttribute( if (pwPtr == NULL) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not set owner for file \"", - TclGetString(fileName), "\": user \"", string, - "\" does not exist", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not set owner for file \"%s\":" + " user \"%s\" does not exist", + TclGetString(fileName), string)); Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SETOWN", "NO_USER", NULL); } @@ -1560,9 +1572,9 @@ SetOwnerAttribute( if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not set owner for file \"", - TclGetString(fileName), "\": ", Tcl_PosixError(interp), - NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not set owner for file \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -1630,9 +1642,9 @@ SetPermissionsAttribute( result = TclpObjStat(fileName, &buf); if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - TclGetString(fileName), "\": ", - Tcl_PosixError(interp), NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not read \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -1640,8 +1652,9 @@ SetPermissionsAttribute( if (GetModeFromPermString(NULL, modeStringPtr, &newMode) != TCL_OK) { if (interp != NULL) { - Tcl_AppendResult(interp, "unknown permission string format \"", - modeStringPtr, "\"", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "unknown permission string format \"%s\"", + modeStringPtr)); Tcl_SetErrorCode(interp, "TCL", "VALUE", "PERMISSION", NULL); } return TCL_ERROR; @@ -1652,9 +1665,9 @@ SetPermissionsAttribute( result = chmod(native, newMode); /* INTL: Native. */ if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not set permissions for file \"", - TclGetString(fileName), "\": ", - Tcl_PosixError(interp), NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not set permissions for file \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -2090,7 +2103,7 @@ TclpObjNormalizePath( /* *---------------------------------------------------------------------- * - * TclpOpenTemporaryFile -- + * TclpOpenTemporaryFile, TclUnixOpenTemporaryFile -- * * Creates a temporary file, possibly based on the supplied bits and * pieces of template supplied in the first three arguments. If the @@ -2100,7 +2113,12 @@ TclpObjNormalizePath( * file to go away once it is no longer needed. * * Results: - * A read-write Tcl Channel open on the file. + * A read-write Tcl Channel open on the file for TclpOpenTemporaryFile, + * or a file descriptor (or -1 on failure) for TclUnixOpenTemporaryFile. + * + * Side effects: + * Accesses the filesystem. Will set the contents of the Tcl_Obj fourth + * argument (if that is non-NULL). * *---------------------------------------------------------------------- */ @@ -2112,11 +2130,30 @@ TclpOpenTemporaryFile( Tcl_Obj *extensionObj, Tcl_Obj *resultingNameObj) { - Tcl_Channel chan; + int fd = TclUnixOpenTemporaryFile(dirObj, basenameObj, extensionObj, + resultingNameObj); + + if (fd == -1) { + return NULL; + } + return Tcl_MakeFileChannel(INT2PTR(fd), TCL_READABLE|TCL_WRITABLE); +} + +int +TclUnixOpenTemporaryFile( + Tcl_Obj *dirObj, + Tcl_Obj *basenameObj, + Tcl_Obj *extensionObj, + Tcl_Obj *resultingNameObj) +{ Tcl_DString template, tmp; const char *string; int len, fd; + /* + * We should also check against making more then TMP_MAX of these. + */ + if (dirObj) { string = Tcl_GetStringFromObj(dirObj, &len); Tcl_UtfToExternalDString(NULL, string, len, &template); @@ -2152,9 +2189,10 @@ TclpOpenTemporaryFile( } if (fd == -1) { - return NULL; + Tcl_DStringFree(&template); + return -1; } - chan = Tcl_MakeFileChannel(INT2PTR(fd), TCL_READABLE|TCL_WRITABLE); + if (resultingNameObj) { Tcl_ExternalToUtfDString(NULL, Tcl_DStringValue(&template), Tcl_DStringLength(&template), &tmp); @@ -2173,7 +2211,7 @@ TclpOpenTemporaryFile( } Tcl_DStringFree(&template); - return chan; + return fd; } /* @@ -2200,11 +2238,12 @@ DefaultTempDir(void) #endif /* - * Assume that "/tmp" is always an existing writable directory; we've no - * recovery mechanism if it isn't. + * Assume that the default location ("/tmp" if not overridden) is always + * an existing writable directory; we've no recovery mechanism if it + * isn't. */ - return "/tmp"; + return TCL_TEMPORARY_FILE_DIRECTORY; } #if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) @@ -2239,14 +2278,14 @@ GetReadOnlyAttribute( if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - TclGetString(fileName), "\": ", Tcl_PosixError(interp), - NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not read \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } - *attributePtrPtr = Tcl_NewBooleanObj((statBuf.st_flags&UF_IMMUTABLE) != 0); + *attributePtrPtr = Tcl_NewBooleanObj(statBuf.st_flags&UF_IMMUTABLE); return TCL_OK; } @@ -2286,9 +2325,9 @@ SetReadOnlyAttribute( if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - TclGetString(fileName), "\": ", Tcl_PosixError(interp), - NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not read \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -2303,9 +2342,9 @@ SetReadOnlyAttribute( result = chflags(native, statBuf.st_flags); /* INTL: Native. */ if (result != 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not set flags for file \"", - TclGetString(fileName), "\": ", Tcl_PosixError(interp), - NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not set flags for file \"%s\": %s", + TclGetString(fileName), Tcl_PosixError(interp))); } return TCL_ERROR; } |