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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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