projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 8aa30e60 DD |
1 | /* Libiberty basename. Like basename, but is not overridden by the |
| 2 | system C library. | |
| 3 | Copyright (C) 2001 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | This file is part of the libiberty library. | |
| 6 | Libiberty is free software; you can redistribute it and/or | |
| 7 | modify it under the terms of the GNU Library General Public | |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2 of the License, or (at your option) any later version. | |
| 10 | ||
| 11 | Libiberty is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | Library General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Library General Public | |
| 17 | License along with libiberty; see the file COPYING.LIB. If | |
| 18 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | /* | |
| 22 | NAME | |
| 23 | lbasename -- return pointer to last component of a pathname | |
| 24 | ||
| 25 | SYNOPSIS | |
| 26 | char *lbasename (const char *name) | |
| 27 | ||
| 28 | DESCRIPTION | |
| 29 | Given a pointer to a string containing a typical pathname | |
| 30 | (/usr/src/cmd/ls/ls.c for example), returns a pointer to the | |
| 31 | last component of the pathname ("ls.c" in this case). The | |
| 32 | returned pointer is guaranteed to lie within the original | |
| 33 | string. This latter fact is not true of many vendor C | |
| 34 | libraries, which return special strings or modify the passed | |
| 35 | strings for particular input. | |
| 36 | ||
| 37 | In particular, the empty string returns the same empty string, | |
| 38 | and a path ending in '/' returns the empty string after it. | |
| 39 | */ | |
| 40 | ||
| 41 | #include "ansidecl.h" | |
| 42 | #include "libiberty.h" | |
| 43 | #include "safe-ctype.h" | |
| 44 | ||
| 45 | #ifndef DIR_SEPARATOR | |
| 46 | # define DIR_SEPARATOR '/' | |
| 47 | #endif | |
| 48 | ||
| 49 | #if defined (_WIN32) || defined (__MSDOS__) \ | |
| 50 | || defined (__DJGPP__) || defined (__OS2__) | |
| 51 | # define HAVE_DOS_BASED_FILE_SYSTEM | |
| 52 | # ifndef DIR_SEPARATOR_2 | |
| 53 | # define DIR_SEPARATOR_2 '\\' | |
| 54 | # endif | |
| 55 | #endif | |
| 56 | ||
| 57 | /* Define IS_DIR_SEPARATOR. VMS uses '::', ':', '[...]' and '<...>' to | |
| 58 | separate the different components of a file specification. It's a | |
| 59 | bit of a stretch to call ':', ']' and '>' directory separators, so | |
| 60 | just define the test to find the file name component. */ | |
| 61 | #ifdef VMS | |
| 62 | # define IS_DIR_SEPARATOR(ch) ((ch) == ':' || (ch) == ']' || (ch) == '>') | |
| 63 | #else | |
| 64 | # ifndef DIR_SEPARATOR_2 | |
| 65 | # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) | |
| 66 | # else | |
| 67 | # define IS_DIR_SEPARATOR(ch) \ | |
| 68 | (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) | |
| 69 | # endif | |
| 70 | #endif | |
| 71 | ||
| 72 | char * | |
| 73 | lbasename (name) | |
| 74 | const char *name; | |
| 75 | { | |
| 76 | const char *base; | |
| 77 | ||
| 78 | #if defined (HAVE_DOS_BASED_FILE_SYSTEM) | |
| 79 | /* Skip over a possible disk name. */ | |
| 80 | if (ISALPHA (name[0]) && name[1] == ':') | |
| 81 | name += 2; | |
| 82 | #endif | |
| 83 | ||
| 84 | for (base = name; *name; name++) | |
| 85 | if (IS_DIR_SEPARATOR (*name)) | |
| 86 | base = name + 1; | |
| 87 | ||
| 88 | return (char *) base; | |
| 89 | } |