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 <stdio.h>
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8 | # include <io.h>
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9 | # include <sys/stat.h>
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10 |
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11 | # define S_IWUSR _S_IWRITE
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12 | # define S_IRUSR _S_IREAD
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13 | # define S_IXUSR _S_IEXEC
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14 | # define S_IRGRP 0x00000000
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15 | # define S_IWGRP 0x00000000
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16 | # define S_IXGRP 0x00000000
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17 | # define S_IROTH 0x00000000
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18 | # define S_IWOTH 0x00000000
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19 | # define S_IXOTH 0x00000000
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20 | #else // #ifdef _WIN32
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21 | # include <unistd.h>
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22 | # define O_BINARY 0x00000000
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23 | #endif // #ifdef _WIN32
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24 |
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25 | #define FILE_MODE S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH
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26 |
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27 | int
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28 | CF_File_Open (const char * path,
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29 | const CF_FILE_FLAG flag)
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30 | {
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31 | int result = open (path, flag|O_BINARY);
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32 |
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33 | if (result < 0)
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34 | return CF_ERROR_FILE_OPEN;
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35 |
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36 | return result;
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37 | }
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38 |
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39 | int
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40 | CF_File_Create (const char * path)
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41 | {
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42 | int result = open (path, CF_FILE_CR|CF_FILE_WO|CF_FILE_TR, FILE_MODE);
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43 |
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44 | if (result < 0)
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45 | return CF_ERROR_FILE_CREATE;
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46 |
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47 | return result;
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48 | }
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49 |
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50 | int
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51 | CF_File_Close (const int fd)
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52 | {
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53 | int result = 0;
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54 |
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55 | if (fd < 0)
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56 | return CF_ERROR_FILE_INVALID_ARGS;
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57 |
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58 | result = close (fd);
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59 |
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60 | if (result < 0)
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61 | return CF_ERROR_FILE_CLOSE;
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62 |
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63 | return CF_OK;
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64 | }
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65 |
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66 | int
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67 | CF_File_Read (const int fd,
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68 | void * buf,
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69 | const size_t len)
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70 | {
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71 | int result = (int) read (fd, buf, len);
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72 |
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73 | if (result < 0)
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74 | return CF_ERROR_FILE_READ;
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75 |
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76 | return result;
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77 | }
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78 |
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79 | int
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80 | CF_File_Write (const int fd,
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81 | const void * buf,
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82 | const size_t len)
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83 | {
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84 | int result = (int) write (fd, buf, len);
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85 |
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86 | if (result != len)
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87 | return CF_ERROR_FILE_WRITE;
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88 |
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89 | return CF_OK;
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90 | }
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91 |
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92 | int
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93 | CF_File_GetSize (const int fd)
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94 | {
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95 | int result = (int) lseek (fd, 0, SEEK_END);
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96 |
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97 | if (result < 0 || lseek (fd, 0, SEEK_SET) < 0)
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98 | return CF_ERROR_FILE_GET_SIZE;
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99 |
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100 | return result;
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101 | }
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