ref: 4fa9b9a395c8ea38e83d84e0d483fe3a329958ea
dir: /libnpe/realpath.c/
#include <u.h> #include <libc.h> #include "limits.h" char * realpath(char *path, char *buffer) { char *s, p[PATH_MAX]; int f; s = nil; if((f = open(path, OREAD)) < 0){ if(fd2path(f, p, sizeof(p)) == 0) s = buffer == nil ? strdup(p) : strcpy(buffer, p); close(f); } return s; }