66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/* $Header$ */
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#include <sys/types.h>
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#include <sys/dir.h>
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#ifndef __BSD4_2
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/*
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* read an old stlye directory entry and present it as a new one
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*/
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#define ODIRSIZ 14
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struct olddirect {
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ino_t od_ino;
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char od_name[ODIRSIZ];
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};
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#else
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#define olddirect direct
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#endif
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/*
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* get next entry in a directory.
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*/
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struct direct *readdir(dirp)
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register DIR *dirp;
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{
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register struct olddirect *dp;
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static struct direct dir;
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for (;;) {
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if (dirp->dd_loc == -1) {
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dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf,
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dirp->dd_bsize);
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if (dirp->dd_size <= 0) {
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dirp->dd_size = 0;
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return NULL;
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}
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dirp->dd_loc = 0;
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#ifdef __BSD4_2
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if (! ((struct direct *) dirp->dd_buf)->d_ino) {
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dirp->dd_loc = ((struct direct *)dirp->dd_buf)->d_reclen;
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}
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#endif
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}
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if (dirp->dd_loc >= dirp->dd_size) {
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dirp->dd_loc = -1;
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continue;
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}
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dp = (struct olddirect *) (dirp->dd_buf + dirp->dd_loc);
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#ifndef __BSD4_2
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dirp->dd_loc += sizeof (struct olddirect);
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if (dp->od_ino == 0)
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continue;
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dir.d_ino = dp->od_ino;
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strncpy(dir.d_name, dp->od_name, ODIRSIZ);
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dir.d_name[ODIRSIZ] = '\0'; /* insure null termination */
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dir.d_reclen = DIRSIZ(&dir);
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dir.d_namlen = strlen(dir.d_name);
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#else
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dirp->dd_loc += dp->d_reclen;
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dir.d_ino = dp->d_ino;
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strcpy(dir.d_name, dp->d_name);
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dir.d_reclen = dp->d_reclen;
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dir.d_namlen = dp->d_namlen;
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#endif
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return &dir;
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}
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}
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