getsockname - 獲得通訊端名稱
內容簡介
#include <sys/socket.h>
int getsockname(int s, struct sockaddr *name, socklen_t *namelen);
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描述
getsockname() 返回當前名稱指定的通訊端。namelen 引數應被初始化，以指示的空間指向量的名字。返回時，包含名稱的實際大小（以位元組為單位）
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返回值
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
錯誤
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標籤 |
描述 |
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EBADF |
The argument s is not a valid descriptor. |
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EFAULT |
The name parameter points to memory not in a valid part of the process address space. |
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EINVAL |
namelen is invalid (e.g., is negative). |
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ENOBUFS |
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Insufficient resources were available in the system to perform the operation. |
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ENOTSOCK |
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The argument s is a file, not a socket. |
遵循於
SVr4, 4.4BSD (the getsockname() function call appeared in 4.2BSD), POSIX.1-2001.
注意
The third argument of getsockname() is in reality an ‘int *’ (and this is what 4.x BSD and libc4 and libc5 have). Some POSIX confusion resulted in the present socklen_t, also used by glibc. See also accept(2).
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