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nss: Debug print JSON files as they are parsed

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It may help in case the NSS plugin ever faces a corrupted JSON

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Michal Privoznik committed 2025-07-18 15:05:41 +02:00
1 parent cf27a25f9f
commit 618eafca05
1 file changed
+9 -3
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tools/nss/libvirt_nss_leases.c
+9 -3
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@@ -265,10 +265,9 @@ findLeases(const char *file,
json_tokener *tok = NULL;
enum json_tokener_error jerr = json_tokener_error_parse_eof;
int jsonflags = JSON_TOKENER_STRICT | JSON_TOKENER_VALIDATE_UTF8;
char line[1024];
size_t nreadTotal = 0;
int rv;
DEBUG("Processing %s", file);
if ((fd = open(file, O_RDONLY)) < 0) {
ERROR("Cannot open %s", file);
goto cleanup;
@@ -282,7 +281,11 @@ findLeases(const char *file,
json_tokener_set_flags(tok, jsonflags);
do {
rv = read(fd, line, sizeof(line));
char line[1024] = { 0 };
ssize_t rv;
rv = read(fd, line, sizeof(line) - 1);
DEBUG("read: rv=%zd line='%s'", rv, line);
if (rv < 0)
goto cleanup;
if (rv == 0)
@@ -293,6 +296,9 @@ findLeases(const char *file,
jerr = json_tokener_get_error(tok);
} while (jerr == json_tokener_continue);
DEBUG("Done reading, nreadTotal=%zu, jerr=%d '%s'",
nreadTotal, (int)jerr, json_tokener_error_desc(jerr));
if (nreadTotal == 0) {
ret = 0;
goto cleanup;