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1.1 root 1: /*
2: * This example illustrates the use of DOSFINDFIRST, DOSFINDNEXT, and
3: * DOSFINDCLOSE. The program lists the contents of a directory.
4: * the parameter format is: FILELIST [-1al] names...
5: */
6:
7: #include <malloc.h>
8: #include <stdio.h>
9: #include <time.h>
10: #include <doscalls.h>
11: #include <subcalls.h>
12:
13: #define TRUE 0
14: #define FALSE 1
15:
16: /* error codes */
17:
18: #define ERROR_NO_MORE_FILES 18
19:
20: /* file attribute constants */
21:
22: #define ATTR_READONLY 0x001 /* read only file */
23: #define ATTR_HIDDEN 0x002 /* hidden file */
24: #define ATTR_SYSTEM 0x004 /* system file */
25: #define ATTR_DIRECTORY 0x010 /* subdirectory entry */
26: #define ATTR_ARCHIVE 0x020 /* archive bit */
27:
28: /* type of list */
29:
30: #define NAME_MULTICOLM 0 /* list name only in multipule columns */
31: #define NAME_SINGCOLM 1 /* list name only in a single column */
32: #define LONG_LIST 2 /* list all data on file */
33: #define TOTALCOLMS 4 /* number of colms when listing name only */
34:
35: #define RESULTBUFLEN sizeof(struct FileFindBuf) /* size of ResultBuf */
36:
37: #define SEARCHALL "*.*" /* default - search for everything */
38: #define MAXPATHSIZE 128
39: #define FILEPATHSIZE MAXPATHSIZE + sizeof(SEARCHALL) + 1
40:
41: main(argc, argv)
42: int argc;
43: char *argv[];
44: {
45: unsigned DirHandle = -1; /* use any available directory handle */
46: unsigned SearchCount; /* number of files to search for */
47: unsigned Attribute = ATTR_DIRECTORY; /* default attribute */
48: unsigned rc; /* return code */
49: unsigned listType = NAME_MULTICOLM; /* default output */
50: char FilePath[FILEPATHSIZE];
51: char *s;
52: struct FileFindBuf *ResultBuf; /* pointer to returned data */
53:
54: /* parse command line for switches */
55:
56: while ((--argc > 0) && (**++argv == '-')) {
57: for (s = argv[0]+1; *s != '\0'; s++)
58:
59: switch(*s) {
60:
61: case 'a': Attribute |= (ATTR_HIDDEN | ATTR_SYSTEM);
62: break;
63:
64: case 'l': listType = LONG_LIST;
65: Attribute |= (ATTR_HIDDEN | ATTR_SYSTEM);
66: break;
67:
68: case '1': listType = NAME_SINGCOLM;
69: break;
70:
71: default: printf("usage: filelist [ -1al ] name...\n");
72: DOSEXIT(1, 0);
73: }
74: }
75:
76: /* allocate buffer for file data returned from find calls */
77:
78: if ((ResultBuf =
79: (struct FileFindBuf *) malloc(RESULTBUFLEN)) == NULL) {
80:
81: printf("error, not enough memory\n");
82: DOSEXIT(1, 0);
83: }
84:
85: do {
86:
87: if (argc > 0) {
88: if (strlen(*argv) > MAXPATHSIZE) {
89: printf("error, path too large\n");
90: DOSEXIT(1, 1);
91: }
92: else {
93: /* if path ends with a \, append "*.*" */
94:
95: strcpy(FilePath, *argv);
96: if (FilePath[strlen(*argv) - 1] == '\\')
97: strcat(FilePath, SEARCHALL);
98: }
99: }
100: else
101: strcpy(FilePath, SEARCHALL); /* search using "*.*" */
102:
103: SearchCount = 1; /* search for one at a time */
104:
105: /* search for first occurance of file search pattern */
106:
107: if (rc = DOSFINDFIRST( (char far *) FilePath,
108: (unsigned far *) &DirHandle,
109: Attribute,
110: ResultBuf, /* ptr to returned data */
111: RESULTBUFLEN,
112: (unsigned far *) &SearchCount,
113: 0L )) {
114:
115: if (rc != ERROR_NO_MORE_FILES) {
116: printf("\nFindFirst failed, error %d\n", rc);
117: DOSEXIT(1, 1);
118: }
119:
120: } else {
121:
122: printDirEntry( ResultBuf, listType ); /* print file data */
123:
124: do {
125:
126: /* search for next occurance of search pattern */
127:
128: if (rc = DOSFINDNEXT( DirHandle,
129: ResultBuf,
130: RESULTBUFLEN,
131: (unsigned far *) &SearchCount )) {
132:
133: if (rc != ERROR_NO_MORE_FILES) {
134: printf("DosFindNext failed, error: %d\n", rc);
135: DOSEXIT(1, 1);
136: }
137: }
138: else
139: /* print file data */
140:
141: printDirEntry( ResultBuf, listType );
142:
143: } while (SearchCount > 0); /* when 0, no more files */
144: }
145:
146: DOSFINDCLOSE( DirHandle ); /* free directory handle */
147:
148: if (argc > 1) /* if any more arguments */
149: argv++; /* point to next one */
150:
151: } while (--argc > 0); /* for all filenames */
152: }
153:
154:
155: /*
156: * This routine prints the data on the file found.
157: */
158:
159: printDirEntry(dirEntry, ltype)
160: struct FileFindBuf *dirEntry;
161: unsigned ltype;
162: {
163: static int colm = 0;
164: char attStr[6];
165: long dateTime;
166:
167:
168: if (ltype == NAME_SINGCOLM)
169: printf("%s\n", dirEntry->file_name);
170:
171: else if (ltype == NAME_MULTICOLM) {
172:
173: printf("%-15s", dirEntry->file_name);
174:
175: if (++colm == TOTALCOLMS) {
176: printf("\n");
177: colm = 0;
178: }
179: }
180: else {
181:
182: /* build attribute string */
183:
184: strcpy(attStr, "-----");
185: if (dirEntry->attributes & ATTR_DIRECTORY)
186: attStr[0] = 'd';
187: if (dirEntry->attributes * ATTR_ARCHIVE)
188: attStr[1] = 'a';
189: if (dirEntry->attributes & ATTR_SYSTEM)
190: attStr[2] = 's';
191: if (dirEntry->attributes & ATTR_HIDDEN)
192: attStr[3] = 'h';
193: if (dirEntry->attributes & ATTR_READONLY)
194: attStr[4] = 'r';
195:
196: printf("%-7s", attStr); /* print attribute */
197: printf("%7lu", dirEntry->file_size); /* print file size */
198: printf(" %s\n", dirEntry->file_name);/* print filename */
199: }
200: }
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