43 lines
870 B
Markdown
43 lines
870 B
Markdown
# PR_GetIdentitiesLayer
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Finds the layer with the specified identity in the specified stack of
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layers.
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## Syntax
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```{code}
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#include <prio.h>
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PRFileDesc* PR_GetIdentitiesLayer(
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PRFileDesc* stack,
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PRDescIdentity id);
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```
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### Parameters
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The function has the following parameters:
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`stack`
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: A pointer to a {ref}`PRFileDesc` object that is a layer in a stack of
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layers.
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`id`
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: The identity of the specified layer.
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### Returns
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The function returns one of the following values:
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- If successful, a pointer to a file descriptor of the layer with the
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specified identity in the given stack of layers.
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- If not successful, `NULL`.
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## Description
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The stack of layers to be searched is specified by the fd parameter,
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which is a layer in the stack. Both the layers underneath fd and the
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layers above fd are searched to find the layer with the specified
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identity.
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