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[SIGAR-111] Add sudo support for Pid.PidFile

This commit is contained in:
Doug MacEachern 2008-05-31 16:26:25 +00:00
parent ef1a02eb09
commit d785d747bc
1 changed files with 45 additions and 8 deletions
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53
src/sigar_ptql.c
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@ -667,6 +667,7 @@ static int ptql_branch_match_ref(ptql_branch_t *branch, ptql_branch_t *ref)
enum {
PTQL_PID_PID,
PTQL_PID_FILE,
PTQL_PID_SUDO_FILE,
PTQL_PID_SERVICE_NAME,
PTQL_PID_SERVICE_DISPLAY,
PTQL_PID_SERVICE_PATH,
@ -689,6 +690,29 @@ enum {
#endif
#ifndef WIN32
int sigar_sudo_file2str(const char *fname, char *buffer, int buflen)
{
FILE *fp;
struct stat sb;
if (stat(fname, &sb) < 0) {
return errno;
}
if (sb.st_size > buflen) {
return ENOMEM;
}
snprintf(buffer, buflen, "sudo cat %s", fname);
if (!(fp = popen(buffer, "r"))) {
return errno;
}
(void)fgets(buffer, buflen, fp);
pclose(fp);
return SIGAR_OK;
}
#endif
static int ptql_branch_init_service(ptql_parse_branch_t *parsed,
ptql_branch_t *branch,
sigar_ptql_error_t *error)
@ -724,6 +748,7 @@ static int ptql_branch_init_pid(ptql_parse_branch_t *parsed,
ptql_branch_t *branch,
sigar_ptql_error_t *error)
{
int use_sudo = 0;
branch->op_flags |= PTQL_OP_FLAG_PID;
if (strEQ(parsed->attr, "Pid")) {
@ -740,8 +765,10 @@ static int ptql_branch_init_pid(ptql_parse_branch_t *parsed,
}
return SIGAR_OK;
}
else if (strEQ(parsed->attr, "PidFile")) {
branch->flags = PTQL_PID_FILE;
else if (strEQ(parsed->attr, "PidFile") ||
(use_sudo = strEQ(parsed->attr, "SudoPidFile")))
{
branch->flags = use_sudo ? PTQL_PID_SUDO_FILE : PTQL_PID_FILE;
branch->data.str = sigar_strdup(parsed->value);
branch->data_size = strlen(parsed->value);
return SIGAR_OK;
@ -919,13 +946,23 @@ static int ptql_pid_get(sigar_t *sigar,
ptql_branch_t *branch,
sigar_pid_t *pid)
{
char *ptr;
if ((branch->flags == PTQL_PID_FILE) ||
(branch->flags == PTQL_PID_SUDO_FILE))
{
char *ptr, buffer[SIGAR_PATH_MAX+1];
const char *fname = (const char *)branch->data.str;
int status, len = sizeof(buffer)-1;
if (branch->flags == PTQL_PID_FILE) {
char buffer[SIGAR_PATH_MAX+1];
int status =
sigar_file2str((const char *)branch->data.str,
buffer, sizeof(buffer)-1);
if (branch->flags == PTQL_PID_FILE) {
status = sigar_file2str(fname, buffer, len);
}
else {
#ifdef WIN32
return SIGAR_ENOTIMPL;
#else
status = sigar_sudo_file2str(fname, buffer, len);
#endif
}
if (status != SIGAR_OK) {
return status;
}