tmpfile.c\stdio\src - musl - musl - an implementation of the standard library for Linux-based systems

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path: root/src/stdio/tmpfile.c
blob: a6b72236d2463d8edbcd8b1ef5d24ea030818307 (plain) (blame)
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#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include "stdio_impl.h"
#define MAXTRIES 100
FILE *tmpfile(void)
{
	char buf[L_tmpnam], *s;
	int fd;
	FILE *f;
	int try;
	for (try=0; try<MAXTRIES; try++) {
		s = tmpnam(buf);
		if (!s) return 0;
		fd = syscall(SYS_open, s, O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE, 0600);
		if (fd >= 0) {
			f = __fdopen(fd, "w+");
			remove(s);
			return f;
		}
	}
	return 0;
}
LFS64(tmpfile);
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