Rich Felker
63a4c9adf2
the LFS64 macro was not self-documenting and barely saved any characters. simply use weak_alias directly so that it's clear what's being done, and doesn't depend on a header to provide a strange macro.
34 lines
619 B
C
34 lines
619 B
C
#include "stdio_impl.h"
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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FILE *fopen(const char *restrict filename, const char *restrict mode)
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{
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FILE *f;
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int fd;
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int flags;
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/* Check for valid initial mode character */
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if (!strchr("rwa", *mode)) {
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errno = EINVAL;
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return 0;
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}
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/* Compute the flags to pass to open() */
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flags = __fmodeflags(mode);
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fd = sys_open(filename, flags, 0666);
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if (fd < 0) return 0;
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if (flags & O_CLOEXEC)
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__syscall(SYS_fcntl, fd, F_SETFD, FD_CLOEXEC);
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f = __fdopen(fd, mode);
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if (f) return f;
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__syscall(SYS_close, fd);
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return 0;
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}
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weak_alias(fopen, fopen64);
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