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[4] | 1 | /**
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| 2 | * cf_file.c
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| 3 | */
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| 4 | #include "cf_file.h"
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| 5 |
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| 6 | #ifdef _WIN32
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| 7 | # include <io.h>
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| 8 | #else // #ifdef _WIN32
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| 9 | # include <unistd.h>
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| 10 | #endif // #ifdef _WIN32
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| 11 |
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| 12 | int
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| 13 | CF_File_Open (const char * path,
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| 14 | const int flag)
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| 15 | {
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| 16 | int result = open (path, flag, 0);
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| 17 |
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| 18 | if (result < 0)
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| 19 | return CF_ERROR_FILE_OPEN;
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| 20 |
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| 21 | return result;
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| 22 | }
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| 23 |
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| 24 | int
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| 25 | CF_File_Create (const char * path)
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| 26 | {
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| 27 | int result = open (path, O_CREAT | O_WRONLY | O_TRUNC, 0);
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| 28 |
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| 29 | if (result < 0)
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| 30 | return CF_ERROR_FILE_CREATE;
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| 31 |
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| 32 | return result;
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| 33 | }
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| 34 |
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| 35 | int
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| 36 | CF_File_Close (const int fd)
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| 37 | {
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| 38 | int result = 0;
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| 39 |
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| 40 | if (fd < 0)
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| 41 | return CF_ERROR_FILE_INVALID_ARGS;
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| 42 |
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| 43 | result = close (fd);
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| 44 |
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| 45 | if (result < 0)
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| 46 | return CF_ERROR_FILE_CLOSE;
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| 47 |
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| 48 | return CF_OK;
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| 49 | }
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| 50 |
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| 51 | int
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| 52 | CF_File_Read (const int fd,
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| 53 | void * buf,
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| 54 | const size_t len)
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| 55 | {
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| 56 | int result = (int) read (fd, buf, len);
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| 57 |
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| 58 | if (result < 0)
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| 59 | return CF_ERROR_FILE_READ;
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| 60 |
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| 61 | return CF_OK;
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| 62 | }
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| 63 |
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| 64 | int
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| 65 | CF_File_Write (const int fd,
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| 66 | const void * buf,
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| 67 | const size_t len)
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| 68 | {
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| 69 | int result = (int) write (fd, buf, len);
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| 70 |
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| 71 | if (result != len)
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| 72 | return CF_ERROR_FILE_WRITE;
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| 73 |
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| 74 | return CF_OK;
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| 75 | }
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| 76 |
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| 77 | int
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| 78 | CF_File_GetSize (const int fd)
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| 79 | {
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| 80 | int result = (int) lseek (fd, 0, SEEK_END);
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| 81 |
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| 82 | if (result < 0 || lseek (fd, 0, SEEK_SET) < 0)
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| 83 | return CF_ERROR_FILE_GET_SIZE;
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| 84 |
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| 85 | return result;
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| 86 | }
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