78 lines
1.4 KiB
C
78 lines
1.4 KiB
C
/* open.c: The __opieopen() library function.
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%%% copyright-cmetz-96
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This software is Copyright 1996-2001 by Craig Metz, All Rights Reserved.
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The Inner Net License Version 3 applies to this software.
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You should have received a copy of the license with this software. If
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you didn't get a copy, you may request one from <license@inner.net>.
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History:
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Modified by cmetz for OPIE 2.4. More portable way to get the mode
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string for fopen.
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Created by cmetz for OPIE 2.3.
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*/
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#include "opie_cfg.h"
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#include <stdio.h>
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#include <sys/types.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include <sys/stat.h>
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#include <errno.h>
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#include "opie.h"
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#if !HAVE_LSTAT
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#define lstat(x, y) stat(x, y)
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#endif /* !HAVE_LSTAT */
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FILE *__opieopen FUNCTION((file, rw, mode), char *file AND int rw AND int mode)
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{
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FILE *f;
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struct stat st;
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if (lstat(file, &st)) {
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if (errno != ENOENT)
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return NULL;
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if (!(f = fopen(file, "w")))
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return NULL;
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fclose(f);
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if (chmod(file, mode))
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return NULL;
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if (lstat(file, &st))
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return NULL;
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}
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if (!S_ISREG(st.st_mode))
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return NULL;
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{
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char *fmode;
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switch(rw) {
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case 0:
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fmode = "r";
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break;
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case 1:
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fmode = "r+";
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break;
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case 2:
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fmode = "a";
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break;
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default:
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return NULL;
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};
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if (!(f = fopen(file, fmode)))
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return NULL;
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}
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return f;
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}
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