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af5c3afa91
the POSIX 2008 behaviour of realpath is not available everywhere so we provide a simple wrapper function. We use (and provide) the gnu extension canonicalize_file_name to make it cleaner to test for the feature we need; otherwise we have to rely on realpath segfaulting if the second argument is null.
18 lines
377 B
C
18 lines
377 B
C
#include "compat.h"
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#include <limits.h>
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#undef _GNU_SOURCE
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#include <stdlib.h>
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char *
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canonicalize_file_name (const char * path)
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{
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#ifdef PATH_MAX
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char *resolved_path = malloc (PATH_MAX+1);
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if (resolved_path == NULL)
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return NULL;
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return realpath (path, resolved_path);
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#else
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#error undefined PATH_MAX _and_ missing canonicalize_file_name not supported
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#endif
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}
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