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util: move ERRNO_IS_xyz macros to errno-util.h
It's where they fit much better.
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@ -27,3 +27,16 @@ static inline int negative_errno(void) {
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assert_return(errno > 0, -EINVAL);
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return -errno;
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}
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/* Hint #1: ENETUNREACH happens if we try to connect to "non-existing" special IP addresses, such as ::5.
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*
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* Hint #2: The kernel sends e.g., EHOSTUNREACH or ENONET to userspace in some ICMP error cases. See the
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* icmp_err_convert[] in net/ipv4/icmp.c in the kernel sources */
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#define ERRNO_IS_DISCONNECT(r) \
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IN_SET(abs(r), \
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ENOTCONN, ECONNRESET, ECONNREFUSED, ECONNABORTED, EPIPE, \
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ENETUNREACH, EHOSTUNREACH, ENOPROTOOPT, EHOSTDOWN, ENONET)
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/* Resource exhaustion, could be our fault or general system trouble */
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#define ERRNO_IS_RESOURCE(r) \
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IN_SET(abs(r), ENOMEM, EMFILE, ENFILE)
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@ -77,18 +77,6 @@ int acquire_data_fd(const void *data, size_t size, unsigned flags);
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int fd_duplicate_data_fd(int fd);
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/* Hint: ENETUNREACH happens if we try to connect to "non-existing" special IP addresses, such as ::5 */
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/* The kernel sends e.g., EHOSTUNREACH or ENONET to userspace in some ICMP error cases.
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* See the icmp_err_convert[] in net/ipv4/icmp.c in the kernel sources */
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#define ERRNO_IS_DISCONNECT(r) \
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IN_SET(abs(r), \
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ENOTCONN, ECONNRESET, ECONNREFUSED, ECONNABORTED, EPIPE, \
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ENETUNREACH, EHOSTUNREACH, ENOPROTOOPT, EHOSTDOWN, ENONET)
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/* Resource exhaustion, could be our fault or general system trouble */
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#define ERRNO_IS_RESOURCE(r) \
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IN_SET(abs(r), ENOMEM, EMFILE, ENFILE)
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int fd_move_above_stdio(int fd);
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int rearrange_stdio(int original_input_fd, int original_output_fd, int original_error_fd);
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@ -6,6 +6,7 @@
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#include "alloc-util.h"
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#include "dns-domain.h"
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#include "errno-list.h"
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#include "errno-util.h"
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#include "fd-util.h"
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#include "random-util.h"
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#include "resolved-dns-cache.h"
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