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17c61d6a2c
* libc/include/sys/reent.h (struct __sFILE, struct __sFILE64): Switch to reentrant callbacks. * libc/include/stdio.h (funopen): Fix declaration. (fopencookie): Declare. * libc/stdio/local.h (__sread, __swrite, __sseek, __sclose) (__sseek64, __swrite64): Fix prototypes. [__SCLE]: Pull in setmode declaration. * libc/stdio/stdio.c (__sread, __swrite, __sseek, __sclose): Fix reentrancy. * libc/stdio64/stdio64.c (__sseek64_r, __swrite64_r): Delete. (__sseek64, __swrite64): Fix reentrancy. * libc/stdio/fseek.c (_fseek_r): Account for overflow, and fix reentrancy. * libc/stdio/ftell.c (_ftell_r): Likewise. * libc/stdio/flags.c (__sflags): Don't lose __SAPP on "a+". * libc/stdio/fclose.c (_fclose_r): Fix reentrancy. * libc/stdio/freopen.c (_freopen_r): Likewise. * libc/stdio/fvwrite.c (__sfvwrite_r): Likewise. * libc/stdio/refill.c (__srefill_r): Likewise. * libc/stdio/siscanf.c (eofread): Likewise. * libc/stdio/sscanf.c (eofread): Likewise. * libc/stdio/vsiscanf.c (eofread1): Likewise. * libc/stdio/vsscanf.c (eofread1): Likewise. * libc/stdio64/freopen64.c (_freopen64_r): Likewise. * libc/stdio64/fseeko64.c (_fseeko64_r): Likewise. * libc/stdio64/ftello64.c (_ftello64_r): Likewise. * libc/stdio/fflush.c (fflush): Improve reentrancy, although more could be fixed. * libc/stdio/fopencookie.c (_fopencookie_r, fopencookie): New file. * libc/stdio/funopen.c (_funopen_r, funopen): New file. * libc/stdio/Makefile.am (ELIX_4_SOURCES, CHEWOUT_FILES): Build new files. * libc/stdio/Makefile.in: Regenerate.
87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*
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* Copyright (c) 1990 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* No user fns here. Pesch 15apr92 */
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#include <_ansi.h>
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#include <stdio.h>
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#include <time.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/types.h>
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/*
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* Return the (stdio) flags for a given mode. Store the flags
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* to be passed to an open() syscall through *optr.
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* Return 0 on error.
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*/
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int
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_DEFUN(__sflags, (ptr, mode, optr),
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struct _reent *ptr _AND
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register char *mode _AND
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int *optr)
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{
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register int ret, m, o;
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switch (mode[0])
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{
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case 'r': /* open for reading */
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ret = __SRD;
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m = O_RDONLY;
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o = 0;
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break;
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case 'w': /* open for writing */
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ret = __SWR;
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m = O_WRONLY;
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o = O_CREAT | O_TRUNC;
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break;
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case 'a': /* open for appending */
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ret = __SWR | __SAPP;
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m = O_WRONLY;
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o = O_CREAT | O_APPEND;
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break;
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default: /* illegal mode */
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ptr->_errno = EINVAL;
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return (0);
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}
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if (mode[1] && (mode[1] == '+' || mode[2] == '+'))
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{
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ret = (ret & ~(__SRD | __SWR)) | __SRW;
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m = O_RDWR;
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}
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if (mode[1] && (mode[1] == 'b' || mode[2] == 'b'))
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{
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#ifdef O_BINARY
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m |= O_BINARY;
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#endif
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}
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#ifdef __CYGWIN__
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else if (mode[1] && (mode[1] == 't' || mode[2] == 't'))
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#else
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else
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#endif
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{
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#ifdef O_TEXT
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m |= O_TEXT;
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#endif
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}
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*optr = m | o;
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return ret;
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}
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