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Matthieu Morel
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Jun 17, 2020
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Original file line number | Diff line number | Diff line change |
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#include <stdio.h> | ||
#include <stdlib.h> | ||
#include <string.h> | ||
#include <sys/uio.h> | ||
#include <unistd.h> | ||
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int main(int argc, char *const argv[]) | ||
{ | ||
// example taken from man for writev(2): | ||
char *str0 = "hello "; | ||
char *str1 = "world\n"; | ||
struct iovec iov[2]; | ||
ssize_t nwritten; | ||
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iov[0].iov_base = str0; | ||
iov[0].iov_len = strlen(str0); | ||
iov[1].iov_base = str1; | ||
iov[1].iov_len = strlen(str1); | ||
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nwritten = writev(STDOUT_FILENO, iov, 2); | ||
printf("%ld\n", nwritten); | ||
printf("%p\n", iov[0].iov_base); | ||
printf("%p\n", iov[1].iov_base); | ||
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if (nwritten == -1) { | ||
perror("writev"); | ||
exit(1); | ||
} | ||
exit(0); | ||
} |
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