97 строки
2.3 KiB
C
97 строки
2.3 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdlib.h>
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#include <string.h>
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#include "opal/util/basename.h"
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#include "ompi/include/constants.h"
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char *opal_basename(const char *filename)
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{
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size_t i;
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char *tmp, *ret = NULL;
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#ifdef __WINDOWS__
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const char sep = '\\';
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#else
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const char sep = '/';
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#endif
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/* Check for the bozo case */
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if (NULL == filename) {
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return NULL;
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}
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/* On Windows, automatically exclude a drive designator */
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#ifdef __WINDOWS__
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if (strlen(filename) == 2 &&
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isalpha(filename[0]) && ':' == filename[1]) {
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return strdup(filename);
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} else if (strlen(filename) == 3 &&
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isalpha(filename[0]) && ':' == filename[1] && sep == filename[2]) {
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return strdup(filename);
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}
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if (':' == filename[1] && isalpha(filename[0])) {
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filename += 2;
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if (sep == filename[0]) {
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++filename;
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}
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}
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#endif
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/* Check for the bozo cases */
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if (0 == strlen(filename)) {
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return strdup("");
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}
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if (sep == filename[0] && '\0' == filename[1]) {
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return strdup(filename);
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}
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/* Remove trailing sep's (note that we already know that strlen > 0) */
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tmp = strdup(filename);
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for (i = strlen(tmp) - 1; i > 0; --i) {
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if (sep == tmp[i]) {
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tmp[i] = '\0';
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} else {
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break;
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}
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}
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if (0 == i) {
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tmp[0] = sep;
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return tmp;
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}
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/* Look for the final sep */
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ret = strrchr(tmp, sep);
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if (NULL == ret) {
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return tmp;
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}
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ret = strdup(ret + 1);
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free(tmp);
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return ret;
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}
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