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Moved some SEXPR functions from xen-unified
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@ -566,3 +566,67 @@ sexpr_fmt_node(const struct sexpr *sexpr, const char *fmt, ...)
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return sexpr_node(sexpr, node);
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return sexpr_node(sexpr, node);
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}
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}
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/**
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* sexpr_int:
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* @sexpr: an S-Expression
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* @name: the name for the value
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*
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* convenience function to lookup an int value in the S-Expression
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*
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* Returns the value found or 0 if not found (but may not be an error).
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* This function suffers from the flaw that zero is both a correct
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* return value and an error indicator: careful!
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*/
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int
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sexpr_int(const struct sexpr *sexpr, const char *name)
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{
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const char *value = sexpr_node(sexpr, name);
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if (value) {
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return strtol(value, NULL, 0);
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}
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return 0;
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}
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/**
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* sexpr_float:
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* @sexpr: an S-Expression
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* @name: the name for the value
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*
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* convenience function to lookup a float value in the S-Expression
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*
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* Returns the value found or 0 if not found (but may not be an error)
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*/
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double
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sexpr_float(const struct sexpr *sexpr, const char *name)
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{
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const char *value = sexpr_node(sexpr, name);
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if (value) {
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return strtod(value, NULL);
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}
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return 0;
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}
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/**
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* sexpr_u64:
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* @sexpr: an S-Expression
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* @name: the name for the value
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*
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* convenience function to lookup a 64bits unsigned int value in the
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* S-Expression
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*
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* Returns the value found or 0 if not found (but may not be an error)
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*/
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uint64_t
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sexpr_u64(const struct sexpr *sexpr, const char *name)
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{
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const char *value = sexpr_node(sexpr, name);
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if (value) {
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return strtoll(value, NULL, 0);
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}
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return 0;
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}
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@ -16,6 +16,7 @@
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# include "internal.h"
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# include "internal.h"
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# include <sys/types.h>
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# include <sys/types.h>
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# include <stdint.h>
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enum sexpr_type {
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enum sexpr_type {
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SEXPR_NIL,
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SEXPR_NIL,
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@ -52,4 +53,9 @@ const char *sexpr_fmt_node(const struct sexpr *sexpr, const char *fmt, ...)
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ATTRIBUTE_FMT_PRINTF(2,3);
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ATTRIBUTE_FMT_PRINTF(2,3);
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struct sexpr *sexpr_lookup(const struct sexpr *sexpr, const char *node);
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struct sexpr *sexpr_lookup(const struct sexpr *sexpr, const char *node);
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int sexpr_has(const struct sexpr *sexpr, const char *node);
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int sexpr_has(const struct sexpr *sexpr, const char *node);
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int sexpr_int(const struct sexpr *sexpr, const char *name);
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double sexpr_float(const struct sexpr *sexpr, const char *name);
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uint64_t sexpr_u64(const struct sexpr *sexpr, const char *name);
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#endif
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#endif
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@ -601,71 +601,6 @@ cleanup:
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return res;
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return res;
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}
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}
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/**
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* sexpr_int:
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* @sexpr: an S-Expression
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* @name: the name for the value
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*
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* convenience function to lookup an int value in the S-Expression
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*
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* Returns the value found or 0 if not found (but may not be an error).
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* This function suffers from the flaw that zero is both a correct
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* return value and an error indicator: careful!
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*/
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static int
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sexpr_int(const struct sexpr *sexpr, const char *name)
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{
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const char *value = sexpr_node(sexpr, name);
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if (value) {
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return strtol(value, NULL, 0);
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}
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return 0;
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}
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/**
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* sexpr_float:
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* @sexpr: an S-Expression
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* @name: the name for the value
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*
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* convenience function to lookup a float value in the S-Expression
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*
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* Returns the value found or 0 if not found (but may not be an error)
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*/
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static double
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sexpr_float(const struct sexpr *sexpr, const char *name)
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{
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const char *value = sexpr_node(sexpr, name);
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if (value) {
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return strtod(value, NULL);
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}
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return 0;
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}
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/**
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* sexpr_u64:
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* @sexpr: an S-Expression
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* @name: the name for the value
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*
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* convenience function to lookup a 64bits unsigned int value in the
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* S-Expression
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*
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* Returns the value found or 0 if not found (but may not be an error)
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*/
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static uint64_t
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sexpr_u64(const struct sexpr *sexpr, const char *name)
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{
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const char *value = sexpr_node(sexpr, name);
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if (value) {
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return strtoll(value, NULL, 0);
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}
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return 0;
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}
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/**
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/**
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* sexpr_uuid:
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* sexpr_uuid:
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* @ptr: where to store the UUID, incremented
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* @ptr: where to store the UUID, incremented
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