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REALPATH(3) FreeBSD Library Functions Manual REALPATH(3) NAME realpath -- returns the canonicalized absolute pathname LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <sys/param.h> #include <stdlib.h> char * realpath(const char *pathname, char resolved_path[PATH_MAX]); DESCRIPTION The realpath() function resolves all symbolic links, extra ``/'' charac- ters and references to /./ and /../ in pathname, and copies the resulting absolute pathname into the memory referenced by resolved_path. The resolved_path argument must refer to a buffer capable of storing at least PATH_MAX characters. The realpath() function will resolve both absolute and relative paths and return the absolute pathname corresponding to pathname. All but the last component of pathname must exist when realpath() is called. RETURN VALUES The realpath() function returns resolved_path on success. If an error occurs, realpath() returns NULL, and resolved_path contains the pathname which caused the problem. ERRORS The function realpath() may fail and set the external variable errno for any of the errors specified for the library functions lstat(2), readlink(2) and getcwd(3). CAVEATS This implementation of realpath() differs slightly from the Solaris implementation. The 4.4BSD version always returns absolute pathnames, whereas the Solaris implementation will, under certain circumstances, return a relative resolved_path when given a relative pathname. SEE ALSO getcwd(3) HISTORY The realpath() function first appeared in 4.4BSD. FreeBSD 11.1 February 16, 1994 FreeBSD 11.1
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | CAVEATS | SEE ALSO | HISTORY
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