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authorYang Tse <yangsita@gmail.com>2011-09-19 18:18:17 +0200
committerYang Tse <yangsita@gmail.com>2011-09-19 18:18:17 +0200
commitfdecb56cbfcafe5b770c4181133655b89973f41e (patch)
tree13c66fdeef3fb672b3ee1e075b9361d0f5e901e6 /src/tool_doswin.c
parent00532341b568653e78bc676feedf225fe7c2948f (diff)
downloadcurl-fdecb56cbfcafe5b770c4181133655b89973f41e.tar.gz
curl tool: reviewed code moved to tool_*.[ch] files
Diffstat (limited to 'src/tool_doswin.c')
-rw-r--r--src/tool_doswin.c202
1 files changed, 202 insertions, 0 deletions
diff --git a/src/tool_doswin.c b/src/tool_doswin.c
new file mode 100644
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+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "setup.h"
+
+#if defined(MSDOS) || defined(WIN32)
+
+#if defined(HAVE_LIBGEN_H) && defined(HAVE_BASENAME)
+# include <libgen.h>
+#endif
+
+#include "tool_bname.h"
+#include "tool_doswin.h"
+
+#include "memdebug.h" /* keep this as LAST include */
+
+#ifdef WIN32
+# undef PATH_MAX
+# define PATH_MAX MAX_PATH
+#endif
+
+#ifndef S_ISCHR
+# ifdef S_IFCHR
+# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
+# else
+# define S_ISCHR(m) (0) /* cannot tell if file is a device */
+# endif
+#endif
+
+#ifdef WIN32
+# define _use_lfn(f) (0, 1) /* long file names always available */
+#elif !defined(__DJGPP__) || (__DJGPP__ < 2) /* DJGPP 2.0 has _use_lfn() */
+# define _use_lfn(f) (1, 0) /* long file names never available */
+#endif
+
+static const char *msdosify (const char *file_name);
+static char *rename_if_dos_device_name (char *file_name);
+
+/*
+ * sanitize_dos_name: returns a newly allocated string holding a
+ * valid file name which will be a transformation of given argument
+ * in case this wasn't already a valid file name.
+ *
+ * This function takes ownership of given argument, free'ing it before
+ * returning. Caller is responsible of free'ing returned string. Upon
+ * out of memory condition function returns NULL.
+ */
+
+char *sanitize_dos_name(char *file_name)
+{
+ char new_name[PATH_MAX];
+
+ if(!file_name)
+ return NULL;
+
+ if(strlen(file_name) >= PATH_MAX)
+ file_name[PATH_MAX-1] = '\0'; /* truncate it */
+
+ strcpy(new_name, msdosify(file_name));
+
+ free(file_name);
+
+ return strdup(rename_if_dos_device_name(new_name));
+}
+
+/* The following functions are taken with modification from the DJGPP
+ * port of tar 1.12. They use algorithms originally from DJTAR. */
+
+static const char *msdosify (const char *file_name)
+{
+ static char dos_name[PATH_MAX];
+ static const char illegal_chars_dos[] = ".+, ;=[]" /* illegal in DOS */
+ "|<>\\\":?*"; /* illegal in DOS & W95 */
+ static const char *illegal_chars_w95 = &illegal_chars_dos[8];
+ int idx, dot_idx;
+ const char *s = file_name;
+ char *d = dos_name;
+ const char *const dlimit = dos_name + sizeof(dos_name) - 1;
+ const char *illegal_aliens = illegal_chars_dos;
+ size_t len = sizeof(illegal_chars_dos) - 1;
+
+ /* Support for Windows 9X VFAT systems, when available. */
+ if(_use_lfn(file_name)) {
+ illegal_aliens = illegal_chars_w95;
+ len -= (illegal_chars_w95 - illegal_chars_dos);
+ }
+
+ /* Get past the drive letter, if any. */
+ if(s[0] >= 'A' && s[0] <= 'z' && s[1] == ':') {
+ *d++ = *s++;
+ *d++ = *s++;
+ }
+
+ for(idx = 0, dot_idx = -1; *s && d < dlimit; s++, d++) {
+ if(memchr(illegal_aliens, *s, len)) {
+ /* Dots are special: DOS doesn't allow them as the leading character,
+ and a file name cannot have more than a single dot. We leave the
+ first non-leading dot alone, unless it comes too close to the
+ beginning of the name: we want sh.lex.c to become sh_lex.c, not
+ sh.lex-c. */
+ if(*s == '.') {
+ if(idx == 0 && (s[1] == '/' || (s[1] == '.' && s[2] == '/'))) {
+ /* Copy "./" and "../" verbatim. */
+ *d++ = *s++;
+ if(*s == '.')
+ *d++ = *s++;
+ *d = *s;
+ }
+ else if(idx == 0)
+ *d = '_';
+ else if(dot_idx >= 0) {
+ if(dot_idx < 5) { /* 5 is a heuristic ad-hoc'ery */
+ d[dot_idx - idx] = '_'; /* replace previous dot */
+ *d = '.';
+ }
+ else
+ *d = '-';
+ }
+ else
+ *d = '.';
+
+ if(*s == '.')
+ dot_idx = idx;
+ }
+ else if(*s == '+' && s[1] == '+') {
+ if(idx - 2 == dot_idx) { /* .c++, .h++ etc. */
+ *d++ = 'x';
+ *d = 'x';
+ }
+ else {
+ /* libg++ etc. */
+ memcpy (d, "plus", 4);
+ d += 3;
+ }
+ s++;
+ idx++;
+ }
+ else
+ *d = '_';
+ }
+ else
+ *d = *s;
+ if(*s == '/') {
+ idx = 0;
+ dot_idx = -1;
+ }
+ else
+ idx++;
+ }
+
+ *d = '\0';
+ return dos_name;
+}
+
+static char *rename_if_dos_device_name (char *file_name)
+{
+ /* We could have a file whose name is a device on MS-DOS. Trying to
+ * retrieve such a file would fail at best and wedge us at worst. We need
+ * to rename such files. */
+ char *base;
+ struct_stat st_buf;
+ char fname[PATH_MAX];
+
+ strncpy(fname, file_name, PATH_MAX-1);
+ fname[PATH_MAX-1] = '\0';
+ base = basename(fname);
+ if(((stat(base, &st_buf)) == 0) && (S_ISCHR(st_buf.st_mode))) {
+ size_t blen = strlen(base);
+
+ if(strlen(fname) >= PATH_MAX-1) {
+ /* Make room for the '_' */
+ blen--;
+ base[blen] = '\0';
+ }
+ /* Prepend a '_'. */
+ memmove(base + 1, base, blen + 1);
+ base[0] = '_';
+ strcpy(file_name, fname);
+ }
+ return file_name;
+}
+
+#endif /* MSDOS || WIN32 */
+