| 1 | /* Libiberty basename. Like basename, but is not overridden by the |
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| 2 | system C library. |
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| 3 | Copyright (C) 2001-2024 Free Software Foundation, Inc. |
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| 4 | |
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| 5 | This file is part of the libiberty library. |
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| 6 | Libiberty is free software; you can redistribute it and/or |
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| 7 | modify it under the terms of the GNU Library General Public |
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| 8 | License as published by the Free Software Foundation; either |
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| 9 | version 2 of the License, or (at your option) any later version. |
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| 10 | |
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| 11 | Libiberty is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | Library General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU Library General Public |
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| 17 | License along with libiberty; see the file COPYING.LIB. If |
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| 18 | not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, |
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| 19 | Boston, MA 02110-1301, USA. */ |
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| 20 | |
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| 21 | /* |
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| 22 | |
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| 23 | @deftypefn Replacement {const char*} lbasename (const char *@var{name}) |
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| 24 | |
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| 25 | Given a pointer to a string containing a typical pathname |
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| 26 | (@samp{/usr/src/cmd/ls/ls.c} for example), returns a pointer to the |
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| 27 | last component of the pathname (@samp{ls.c} in this case). The |
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| 28 | returned pointer is guaranteed to lie within the original |
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| 29 | string. This latter fact is not true of many vendor C |
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| 30 | libraries, which return special strings or modify the passed |
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| 31 | strings for particular input. |
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| 32 | |
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| 33 | In particular, the empty string returns the same empty string, |
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| 34 | and a path ending in @code{/} returns the empty string after it. |
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| 35 | |
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| 36 | @end deftypefn |
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| 37 | |
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| 38 | */ |
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| 39 | |
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| 40 | #ifdef HAVE_CONFIG_H |
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| 41 | #include "config.h" |
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| 42 | #endif |
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| 43 | #include "ansidecl.h" |
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| 44 | #include "libiberty.h" |
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| 45 | #include "safe-ctype.h" |
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| 46 | #include "filenames.h" |
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| 47 | |
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| 48 | const char * |
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| 49 | unix_lbasename (const char *name) |
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| 50 | { |
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| 51 | const char *base; |
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| 52 | |
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| 53 | for (base = name; *name; name++) |
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| 54 | if (IS_UNIX_DIR_SEPARATOR (*name)) |
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| 55 | base = name + 1; |
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| 56 | |
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| 57 | return base; |
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| 58 | } |
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| 59 | |
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| 60 | const char * |
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| 61 | dos_lbasename (const char *name) |
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| 62 | { |
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| 63 | const char *base; |
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| 64 | |
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| 65 | /* Skip over a possible disk name. */ |
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| 66 | if (ISALPHA (name[0]) && name[1] == ':') |
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| 67 | name += 2; |
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| 68 | |
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| 69 | for (base = name; *name; name++) |
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| 70 | if (IS_DOS_DIR_SEPARATOR (*name)) |
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| 71 | base = name + 1; |
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| 72 | |
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| 73 | return base; |
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| 74 | } |
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| 75 | |
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| 76 | const char * |
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| 77 | lbasename (const char *name) |
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| 78 | { |
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| 79 | #if defined (HAVE_DOS_BASED_FILE_SYSTEM) |
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| 80 | return dos_lbasename (name); |
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| 81 | #else |
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| 82 | return unix_lbasename (name); |
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| 83 | #endif |
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| 84 | } |
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| 85 | |
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