46245aaac1
* rename orte_os_path to opal_os_path * rename ompi_path_find to opal_path_find * rename ompi_pow2 to opal_pow2 This commit was SVN r6334.
105 строки
2.6 KiB
C
105 строки
2.6 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights 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 <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_LIBGEN_H
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#include <libgen.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#include <stdlib.h>
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#include <stdarg.h>
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#include "include/constants.h"
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#include "util/sys_info.h"
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#include "opal/util/os_path.h"
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#include "util/sys_info.h"
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char *opal_os_path(bool relative, ...)
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{
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va_list ap, ap1;
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char *element, *path;
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int num_elements, total_length;
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va_start(ap, relative);
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va_start(ap1, relative);
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/* make sure system info is filled and separator is non-NULL */
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orte_sys_info();
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if (NULL == orte_system_info.path_sep) {
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return(NULL);
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}
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/* no way to protect ourselves from reading too far, so have to trust caller
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that they ended the list with the NULL */
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num_elements = 0;
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total_length = 0;
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while (NULL != (element=va_arg(ap, char*))) {
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num_elements++;
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total_length = total_length + strlen(element);
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}
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if (0 == num_elements) { /* must be looking for a simple answer */
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path = (char *)malloc(2);
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path[0] = 0;
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if (relative) {
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strcpy(path, ".");
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strcat(path, orte_system_info.path_sep);
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}
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else {
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#ifndef WIN32
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strcpy(path, orte_system_info.path_sep);
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#endif
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}
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return(path);
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}
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/* setup path with enough room for the string terminator, the elements, and
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the separator between each of the elements */
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total_length = total_length + num_elements + 1;
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if (total_length > MAXPATHLEN) { /* path length is too long - reject it */
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return(NULL);
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}
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path = (char *)malloc(2 + total_length + num_elements-1);
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if (NULL == path) {
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return(NULL);
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}
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path[0] = 0;
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if (relative) {
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strcpy(path, ".");
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}
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while (NULL != (element=va_arg(ap1, char*))) {
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if (orte_system_info.path_sep[0] != element[0]) {
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strcat(path, orte_system_info.path_sep);
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}
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strcat(path, element);
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}
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va_end(ap);
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va_end(ap1);
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return(path);
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}
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