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The C Users' Group Library 1994 August
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v_01_04
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1990-07-18
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/*
** Figure 6 - Directory lister using POSIX style processing
*/
#include <stdio.h>
#include "dirent.h"
#define SUCCESS 0
void dumpdir(char *dirname, char *mask)
{
DOS_DIR *dirp;
struct DSTRUCT *dstruct;
dirp = opendir(dirname);
if (!dirp)
{
printf("Opening %s returned NULL\n\n", dirname);
return;
}
printf("Dir %s has %d entries\n", dirname, dirp->dd_size);
do
{
if (dstruct = readdir(dirp))
{
if (SUCCESS == dirmask(dstruct, mask, NULL,
FA_ANY, 0))
printf("%3d - %s\n", dirp->dd_loc,
dstruct->NAME);
}
else puts("EOF\n");
} while (dstruct);
printf("seekdir( -1) returned %p\n", seekdir(dirp, -1, SEEK_SET));
printf("seekdir(999) returned %p\n", seekdir(dirp, 999, SEEK_SET));
printf("seekdir(0, SEEK_SET) returned %p\n", dstruct = seekdir(dirp,
0, SEEK_SET));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
printf("seekdir(1, SEEK_SET) returned %p\n", dstruct = seekdir(dirp,
1, SEEK_SET));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
printf("seekdir(4, SEEK_SET) returned %p\n", dstruct = seekdir(dirp,
4, SEEK_SET));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
printf("seekdir(4, SEEK_CUR) returned %p\n", dstruct = seekdir(dirp,
4, SEEK_CUR));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
printf("seekdir(-1, SEEK_CUR) returned %p\n", dstruct = seekdir(dirp,
-1, SEEK_CUR));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
printf("seekdir(1, SEEK_CUR) returned %p\n", dstruct = seekdir(dirp,
1, SEEK_CUR));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
printf("seekdir(0, SEEK_END) returned %p\n", dstruct = seekdir(dirp,
0, SEEK_END));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
printf("seekdir(-1, SEEK_END) returned %p\n", dstruct = seekdir(dirp,
-1, SEEK_END));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
printf("seekdir(-4, SEEK_END) returned %p\n", dstruct = seekdir(dirp,
-4, SEEK_END));
printf("%3d - %s\n", dirp->dd_loc, dstruct->NAME);
closedir(dirp);
}
main(int argc, char *argv[])
{
int i;
char *mask = NULL, *dirname;
if (1 < argc)
dirname = argv[1];
else dirname = ".";
if (2 < argc)
mask = argv[2];
printf("Calling dumpdir(%s, %s)\n\n", dirname, mask);
dumpdir(dirname, mask);
}