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Line 62... |
| 62 |
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62 |
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| 63 |
/* copies src to dst, overwriting or appending to the destination.
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/* copies src to dst, overwriting or appending to the destination.
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| 64 |
* - copy is performed in ASCII mode if asciiflag set (stop at first EOF in src
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* - copy is performed in ASCII mode if asciiflag set (stop at first EOF in src
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| 65 |
* and append an EOF in dst).
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* and append an EOF in dst).
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| 66 |
* - returns zero on success, DOS error code on error */
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* - returns zero on success, DOS error code on error */
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| 67 |
unsigned short cmd_copy_internal(const char *dst, char dstascii, const char *src, char srcascii, unsigned char appendflag, void *buff, unsigned short buffsz) {
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67 |
static unsigned short cmd_copy_internal(const char *dst, char dstascii, const char *src, char srcascii, unsigned char appendflag, void *buff, unsigned short buffsz) {
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| 68 |
unsigned short errcode = 0;
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68 |
unsigned short errcode = 0;
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| 69 |
unsigned short srch = 0xffff, dsth = 0xffff;
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unsigned short srch = 0xffff, dsth = 0xffff;
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| 70 |
_asm {
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_asm {
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| 71 |
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71 |
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| 72 |
/* open src */
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/* open src */
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| 73 |
OPENSRC:
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OPENSRC:
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| 74 |
mov ax, 0x3d00 /* DOS 2+ -- open an existing file, read access mode */
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mov ax, 0x3d00 /* DOS 2+ -- open an existing file, read access mode */
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| 75 |
mov dx, src /* ASCIIZ fname */
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mov dx, src /* ASCIIZ fname */
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| 76 |
int 0x21 /* CF clear on success, handle in AX */
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int 0x21 /* CF clear on success, handle in AX */
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| - |
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77 |
jc FAIL
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| 77 |
mov [srch], ax /* store src handle in memory */
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mov [srch], ax /* store src handle in memory */
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| 78 |
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79 |
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| 79 |
/* check appendflag so I know if I have to try opening dst for append */
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80 |
/* check appendflag so I know if I have to try opening dst for append */
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| 80 |
xor al, al
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81 |
xor al, al
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| 81 |
or al, [appendflag]
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82 |
or al, [appendflag]
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