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https://github.com/fluencelabs/musl
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98c5583ad5
since vfprintf will provide a temporary buffer in the case where the target FILE has a zero buffer size, don't bother setting up a real buffer for vdprintf. this also allows us to skip the call to fflush since we know everything will be written out before vfprintf returns.
17 lines
334 B
C
17 lines
334 B
C
#include "stdio_impl.h"
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static size_t wrap_write(FILE *f, const unsigned char *buf, size_t len)
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{
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return __stdio_write(f, buf, len);
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}
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int vdprintf(int fd, const char *fmt, va_list ap)
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{
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FILE f = {
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.fd = fd, .lbf = EOF, .write = wrap_write,
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.buf = (void *)fmt, .buf_size = 0,
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.lock = -1
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};
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return vfprintf(&f, fmt, ap);
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}
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