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Allow a third, optional filename argument for cbm_opendir.
git-svn-id: svn://svn.cc65.org/cc65/trunk@5683 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@ -274,10 +274,11 @@ int __fastcall__ cbm_write (unsigned char lfn, const void* buffer,
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* _oserror contains an error-code, then (see above table).
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*/
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unsigned char __fastcall__ cbm_opendir (unsigned char lfn, unsigned char device);
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/* Opens directory listing.
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* Returns 0 if openning directory was successful;
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* otherwise, an error-code corresponding to cbm_open().
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unsigned char cbm_opendir (unsigned char lfn, unsigned char device, ...);
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/* Opens directory listing. Returns 0 if opening directory was successful;
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* otherwise, an error-code corresponding to cbm_open(). As an optional
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* argument, the name of the directory may be passed to the function. If
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* no explicit name is specified, "$" is used.
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*/
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unsigned char __fastcall__ cbm_readdir (unsigned char lfn,
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@ -13,18 +13,31 @@
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/* in directory listings). */
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#include <stdarg.h>
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#include <cbm.h>
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#include <errno.h>
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/* Opens directory listing.
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** Returns 0 if openning directory was successful;
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** otherwise, an error-code corresponding to cbm_open().
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/* Opens directory listing. Returns 0 if opening directory was successful;
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** otherwise, an error-code corresponding to cbm_open(). As an optional
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** argument, the name of the directory may be passed to the function. If
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** no explicit name is specified, "$" is used.
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*/
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unsigned char __fastcall__ cbm_opendir (unsigned char lfn, unsigned char device)
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unsigned char cbm_opendir (unsigned char lfn, unsigned char device, ...)
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{
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if (cbm_open (lfn, device, CBM_READ, "$") == 0) {
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va_list ap;
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const char* name = "$";
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/* The name used in cbm_open may optionally be passed */
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if (__argsize__ == 4) {
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va_start (ap, device);
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name = va_arg (ap, const char*);
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va_end (ap);
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}
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/* Open the directory */
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if (cbm_open (lfn, device, CBM_READ, name) == 0) {
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if ((_oserror = cbm_k_chkin (lfn)) == 0) {
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/* Ignore start address */
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cbm_k_basin();
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