dmake: do not set MAKEFLAGS=k
[unleashed/tickless.git] / usr / src / cmd / acpi / acpidump / osunixdir.c
blob93bcf520ad8df10c9617dfae9b86e350275493d3
1 /******************************************************************************
3 * Module Name: osunixdir - Unix directory access interfaces
5 *****************************************************************************/
7 /*
8 * Copyright (C) 2000 - 2016, Intel Corp.
9 * All rights reserved.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
44 #include "acpi.h"
46 #include <stdio.h>
47 #include <stdlib.h>
48 #include <string.h>
49 #include <dirent.h>
50 #include <fnmatch.h>
51 #include <sys/stat.h>
54 * Allocated structure returned from OsOpenDirectory
56 typedef struct ExternalFindInfo
58 char *DirPathname;
59 DIR *DirPtr;
60 char temp_buffer[256];
61 char *WildcardSpec;
62 char RequestedFileType;
64 } EXTERNAL_FIND_INFO;
67 /*******************************************************************************
69 * FUNCTION: AcpiOsOpenDirectory
71 * PARAMETERS: DirPathname - Full pathname to the directory
72 * WildcardSpec - string of the form "*.c", etc.
74 * RETURN: A directory "handle" to be used in subsequent search operations.
75 * NULL returned on failure.
77 * DESCRIPTION: Open a directory in preparation for a wildcard search
79 ******************************************************************************/
81 void *
82 AcpiOsOpenDirectory (
83 char *DirPathname,
84 char *WildcardSpec,
85 char RequestedFileType)
87 EXTERNAL_FIND_INFO *ExternalInfo;
88 DIR *dir;
91 /* Allocate the info struct that will be returned to the caller */
93 ExternalInfo = calloc (1, sizeof (EXTERNAL_FIND_INFO));
94 if (!ExternalInfo)
96 return (NULL);
99 /* Get the directory stream */
101 dir = opendir (DirPathname);
102 if (!dir)
104 fprintf (stderr, "Cannot open directory - %s\n", DirPathname);
105 free (ExternalInfo);
106 return (NULL);
109 /* Save the info in the return structure */
111 ExternalInfo->WildcardSpec = WildcardSpec;
112 ExternalInfo->RequestedFileType = RequestedFileType;
113 ExternalInfo->DirPathname = DirPathname;
114 ExternalInfo->DirPtr = dir;
115 return (ExternalInfo);
119 /*******************************************************************************
121 * FUNCTION: AcpiOsGetNextFilename
123 * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory
125 * RETURN: Next filename matched. NULL if no more matches.
127 * DESCRIPTION: Get the next file in the directory that matches the wildcard
128 * specification.
130 ******************************************************************************/
132 char *
133 AcpiOsGetNextFilename (
134 void *DirHandle)
136 EXTERNAL_FIND_INFO *ExternalInfo = DirHandle;
137 struct dirent *dir_entry;
138 char *temp_str;
139 int str_len;
140 struct stat temp_stat;
141 int err;
144 while ((dir_entry = readdir (ExternalInfo->DirPtr)))
146 if (!fnmatch (ExternalInfo->WildcardSpec, dir_entry->d_name, 0))
148 if (dir_entry->d_name[0] == '.')
150 continue;
153 str_len = strlen (dir_entry->d_name) +
154 strlen (ExternalInfo->DirPathname) + 2;
156 temp_str = calloc (str_len, 1);
157 if (!temp_str)
159 fprintf (stderr,
160 "Could not allocate buffer for temporary string\n");
161 return (NULL);
164 strcpy (temp_str, ExternalInfo->DirPathname);
165 strcat (temp_str, "/");
166 strcat (temp_str, dir_entry->d_name);
168 err = stat (temp_str, &temp_stat);
169 if (err == -1)
171 fprintf (stderr,
172 "Cannot stat file (should not happen) - %s\n",
173 temp_str);
174 free (temp_str);
175 return (NULL);
178 free (temp_str);
180 if ((S_ISDIR (temp_stat.st_mode)
181 && (ExternalInfo->RequestedFileType == REQUEST_DIR_ONLY))
183 ((!S_ISDIR (temp_stat.st_mode)
184 && ExternalInfo->RequestedFileType == REQUEST_FILE_ONLY)))
186 /* copy to a temp buffer because dir_entry struct is on the stack */
188 strcpy (ExternalInfo->temp_buffer, dir_entry->d_name);
189 return (ExternalInfo->temp_buffer);
194 return (NULL);
198 /*******************************************************************************
200 * FUNCTION: AcpiOsCloseDirectory
202 * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory
204 * RETURN: None.
206 * DESCRIPTION: Close the open directory and cleanup.
208 ******************************************************************************/
210 void
211 AcpiOsCloseDirectory (
212 void *DirHandle)
214 EXTERNAL_FIND_INFO *ExternalInfo = DirHandle;
217 /* Close the directory and free allocations */
219 closedir (ExternalInfo->DirPtr);
220 free (DirHandle);