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nvpair: Constify string functions

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After addressing coverity complaints involving `nvpair_name()`, the
compiler started complaining about dropping const. This lead to a rabbit
hole where not only `nvpair_name()` needed to be constified, but also
`nvpair_value_string()`, `fnvpair_value_string()` and a few other static
functions, plus variable pointers throughout the code. The result became
a fairly big change, so it has been split out into its own patch.

Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #14612
This commit is contained in:
Richard Yao
2023-03-11 13:39:24 -05:00
committed by Brian Behlendorf
parent 50f6934b9c
commit d1807f168e
72 changed files with 442 additions and 402 deletions
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lib/libnvpair/libnvpair_json.c
+2 -2
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@@ -134,7 +134,7 @@ nvlist_print_json(FILE *fp, nvlist_t *nvl)
switch (type) {
case DATA_TYPE_STRING: {
char *string = fnvpair_value_string(curr);
const char *string = fnvpair_value_string(curr);
if (nvlist_print_json_string(fp, string) == -1)
return (-1);
break;
@@ -220,7 +220,7 @@ nvlist_print_json(FILE *fp, nvlist_t *nvl)
}
case DATA_TYPE_STRING_ARRAY: {
char **val;
const char **val;
uint_t valsz, i;
VERIFY0(nvpair_value_string_array(curr, &val, &valsz));
FPRINTF(fp, "[");