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65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
// (‑●‑●)> released under the WTFPL v2 license, by Gregory Pakosz (@gpakosz)
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// https://github.com/gpakosz/whereami
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#ifndef WHEREAMI_H
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#define WHEREAMI_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef WAI_FUNCSPEC
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#define WAI_FUNCSPEC
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#endif
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#ifndef WAI_PREFIX
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#define WAI_PREFIX(function) wai_##function
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#endif
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/**
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* Returns the path to the current executable.
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*
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* Usage:
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* - first call `int length = wai_getExecutablePath(NULL, 0, NULL);` to
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* retrieve the length of the path
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* - allocate the destination buffer with `path = (char*)malloc(length + 1);`
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* - call `wai_getExecutablePath(path, length, NULL)` again to retrieve the
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* path
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* - add a terminal NUL character with `path[length] = '\0';`
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*
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* @param out destination buffer, optional
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* @param capacity destination buffer capacity
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* @param dirname_length optional recipient for the length of the dirname part
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* of the path.
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*
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* @return the length of the executable path on success (without a terminal NUL
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* character), otherwise `-1`
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*/
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WAI_FUNCSPEC
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int WAI_PREFIX(getExecutablePath)(char *out, int capacity, int *dirname_length);
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/**
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* Returns the path to the current module
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*
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* Usage:
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* - first call `int length = wai_getModulePath(NULL, 0, NULL);` to retrieve
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* the length of the path
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* - allocate the destination buffer with `path = (char*)malloc(length + 1);`
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* - call `wai_getModulePath(path, length, NULL)` again to retrieve the path
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* - add a terminal NUL character with `path[length] = '\0';`
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*
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* @param out destination buffer, optional
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* @param capacity destination buffer capacity
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* @param dirname_length optional recipient for the length of the dirname part
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* of the path.
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*
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* @return the length of the module path on success (without a terminal NUL
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* character), otherwise `-1`
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*/
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WAI_FUNCSPEC
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int WAI_PREFIX(getModulePath)(char *out, int capacity, int *dirname_length);
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#ifdef __cplusplus
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}
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#endif
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#endif // #ifndef WHEREAMI_H
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