30 lines
655 B
C
Executable File
30 lines
655 B
C
Executable File
#include <libgen.h>
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#include <string.h>
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/* based on http://www.opengroup.org/onlinepubs/009695399/functions/dirname.html */
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char *dirname(char *path)
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{
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char *pathend;
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/* remove leading slash(es) except root */
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pathend = path + strlen(path) - 1;
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while (pathend > path && *pathend == '/')
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pathend--;
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/* remove last path component */
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while (pathend >= path && *pathend != '/')
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pathend--;
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/* remove slash(es) before last path component except root */
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while (pathend > path && *pathend == '/')
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pathend--;
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/* special case: no slashes */
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if (pathend < path)
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return ".";
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/* truncate and return string */
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pathend[1] = 0;
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return path;
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}
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