The supported POSIX functions are listed in the table below Table - POSIX API functions. These are divided into four groups. First, the functions which operate on file objects (FS_FILEs) are grouped under file access (or simply file) functions. An application stores information in a file system by creating a file or appending new information to an existing file. At a later time, this information may be retrieved by reading the file. Other functions support these capabilities; for example, the application can move to a specified location in the file or query the file system to get information about the file.
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The final group of functions is the working directory functions. For information about using file and path names, see section 4-3 “ μ CµC/FS File and Directory Names and Paths”Paths.
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| title | Table - POSIX API functions |
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| Function | POSIX Equivalent |
| fs_asctime_r()
| asctime_r()
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| fs_ftruncate()
| ftruncate()
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| fs_chdir()
| chdir()
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| fs_ftrylockfile()
| ftrylockfile()
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| fs_clearerr()
| clearerr()
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| fs_funlockfile()
| funlockfile()
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| fs_closedir()
| closedir()
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| fs_fwrite()
| fwrite()
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| fs_ctime_r()
| ctime_r()
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| fs_getcwd()
| getcwd()
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| fs_fclose()
| fclose()
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| fs_localtime_r()
| localtime_r()
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| fs_feof()
| feof()
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| fs_mkdir()
| mkdir()
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| fs_ferror()
| ferror()
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| fs_mktime()
| mktime()
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| fs_fflush()
| fflush()
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| fs_rewind()
| rewind()
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| fs_fgetpos()
| fgetpos()
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| fs_opendir()
| opendir()
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| fs_flockfile()
| flockfile()
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| fs_readdir_r()
| readdir_r()
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| fs_fopen()
| fopen()
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| fs_remove()
| remove()
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| fs_fread()
| fread()
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| fs_rename()
| rename()
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| fs_fseek()
| fseek()
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| fs_rmdir()
| rmdir()
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| fs_fsetpos()
| fsetpos()
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| fs_setbuf()
| setbuf()
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| fs_fstat()
| fstat()
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| fs_setvbuf()
| setvbuf()
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| fs_ftell()
| ftell()
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