diff options
Diffstat (limited to 'file.c')
| -rw-r--r-- | file.c | 86 |
1 files changed, 83 insertions, 3 deletions
@@ -123,6 +123,12 @@ int flock(int, int); #define rename(f, t) rb_w32_urename((f), (t)) #undef symlink #define symlink(s, l) rb_w32_usymlink((s), (l)) + +#ifdef HAVE_REALPATH +/* Don't use native realpath(3) on Windows, as the check for + absolute paths does not work for drive letters. */ +#undef HAVE_REALPATH +#endif #else #define STAT(p, s) stat((p), (s)) #endif @@ -140,6 +146,11 @@ int flock(int, int); # define UTIME_EINVAL #endif +#ifdef HAVE_REALPATH +#include <limits.h> +#include <stdlib.h> +#endif + VALUE rb_cFile; VALUE rb_mFileTest; VALUE rb_cStat; @@ -4198,7 +4209,7 @@ realpath_rec(long *prefixlenp, VALUE *resolvedp, const char *unresolved, VALUE f } static VALUE -rb_check_realpath_internal(VALUE basedir, VALUE path, enum rb_realpath_mode mode) +rb_check_realpath_emulate(VALUE basedir, VALUE path, enum rb_realpath_mode mode) { long prefixlen; VALUE resolved; @@ -4292,6 +4303,77 @@ rb_check_realpath_internal(VALUE basedir, VALUE path, enum rb_realpath_mode mode return resolved; } +static VALUE rb_file_join(VALUE ary); + +static VALUE +rb_check_realpath_internal(VALUE basedir, VALUE path, enum rb_realpath_mode mode) +{ +#ifdef HAVE_REALPATH + VALUE unresolved_path; + rb_encoding *origenc; + char *resolved_ptr = NULL; + VALUE resolved; + struct stat st; + + if (mode == RB_REALPATH_DIR) { + return rb_check_realpath_emulate(basedir, path, mode); + } + + unresolved_path = rb_str_dup_frozen(path); + origenc = rb_enc_get(unresolved_path); + if (*RSTRING_PTR(unresolved_path) != '/' && !NIL_P(basedir)) { + unresolved_path = rb_file_join(rb_assoc_new(basedir, unresolved_path)); + } + unresolved_path = TO_OSPATH(unresolved_path); + + if((resolved_ptr = realpath(RSTRING_PTR(unresolved_path), NULL)) == NULL) { + /* glibc realpath(3) does not allow /path/to/file.rb/../other_file.rb, + returning ENOTDIR in that case. + glibc realpath(3) can also return ENOENT for paths that exist, + such as /dev/fd/5. + Fallback to the emulated approach in either of those cases. */ + if (errno == ENOTDIR || + (errno == ENOENT && rb_file_exist_p(0, unresolved_path))) { + return rb_check_realpath_emulate(basedir, path, mode); + + } + if (mode == RB_REALPATH_CHECK) { + return Qnil; + } + rb_sys_fail_path(unresolved_path); + } + resolved = ospath_new(resolved_ptr, strlen(resolved_ptr), rb_filesystem_encoding()); + free(resolved_ptr); + + if (rb_stat(resolved, &st) < 0) { + if (mode == RB_REALPATH_CHECK) { + return Qnil; + } + rb_sys_fail_path(unresolved_path); + } + + if (origenc != rb_enc_get(resolved)) { + if (!rb_enc_str_asciionly_p(resolved)) { + resolved = rb_str_conv_enc(resolved, NULL, origenc); + } + rb_enc_associate(resolved, origenc); + } + + if(rb_enc_str_coderange(resolved) == ENC_CODERANGE_BROKEN) { + rb_enc_associate(resolved, rb_filesystem_encoding()); + if(rb_enc_str_coderange(resolved) == ENC_CODERANGE_BROKEN) { + rb_enc_associate(resolved, rb_ascii8bit_encoding()); + } + } + + rb_obj_taint(resolved); + RB_GC_GUARD(unresolved_path); + return resolved; +#else + return rb_check_realpath_emulate(basedir, path, mode); +#endif /* HAVE_REALPATH */ +} + VALUE rb_realpath_internal(VALUE basedir, VALUE path, int strict) { @@ -4713,8 +4795,6 @@ rb_file_s_split(VALUE klass, VALUE path) return rb_assoc_new(rb_file_dirname(path), rb_file_s_basename(1,&path)); } -static VALUE rb_file_join(VALUE ary); - static VALUE file_inspect_join(VALUE ary, VALUE arg, int recur) { |