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// SPDX-License-Identifier: GPL-3.0-or-later
#include "nd_log-internals.h"
void chown_open_file(int fd, uid_t uid, gid_t gid) {
if(fd == -1) return;
struct stat buf;
if(fstat(fd, &buf) == -1) {
netdata_log_error("Cannot fstat() fd %d", fd);
return;
}
if((buf.st_uid != uid || buf.st_gid != gid) && S_ISREG(buf.st_mode)) {
if(fchown(fd, uid, gid) == -1)
netdata_log_error("Cannot fchown() fd %d.", fd);
}
}
void nd_log_chown_log_files(uid_t uid, gid_t gid) {
for(size_t i = 0 ; i < _NDLS_MAX ; i++) {
if(nd_log.sources[i].fd != -1 && nd_log.sources[i].fd != STDIN_FILENO)
chown_open_file(nd_log.sources[i].fd, uid, gid);
}
}
bool nd_logger_file(FILE *fp, ND_LOG_FORMAT format, struct log_field *fields, size_t fields_max) {
BUFFER *wb = buffer_create(1024, NULL);
if(format == NDLF_JSON)
nd_logger_json(wb, fields, fields_max);
else
nd_logger_logfmt(wb, fields, fields_max);
int r = fprintf(fp, "%s\n", buffer_tostring(wb));
fflush(fp);
buffer_free(wb);
return r > 0;
}
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