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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "projects.h"
#define PROJID "/etc/projid"
#define PROJECT_PATHS "/etc/projects"
char *projid_file;
char *projects_file;
static FILE *projects;
static FILE *project_paths;
void
setprfiles(void)
{
if (!projid_file)
projid_file = PROJID;
if (!projects_file)
projects_file = PROJECT_PATHS;
}
void
setprent(void)
{
setprfiles();
projects = fopen(projid_file, "r");
}
void
setprpathent(void)
{
setprfiles();
project_paths = fopen(projects_file, "r");
}
void
endprent(void)
{
if (projects)
fclose(projects);
projects = NULL;
}
void
endprpathent(void)
{
if (project_paths)
fclose(project_paths);
project_paths = NULL;
}
fs_project_t *
getprent(void)
{
static fs_project_t p;
static char projects_buffer[512];
char *idstart, *idend;
size_t size = sizeof(projects_buffer) - 1;
if (!projects)
return NULL;
for (;;) {
if (!fgets(projects_buffer, size, projects))
break;
/*
* /etc/projid file format -- "name:id\n", ignore "^#..."
*/
if (projects_buffer[0] == '#')
continue;
idstart = strchr(projects_buffer, ':');
if (!idstart)
continue;
if ((idstart + 1) - projects_buffer >= size)
continue;
idend = strchr(idstart+1, ':');
if (idend)
*idend = '\0';
*idstart = '\0';
p.pr_prid = atoi(idstart+1);
p.pr_name = &projects_buffer[0];
return &p;
}
return NULL;
}
fs_project_t *
getprnam(
char *name)
{
fs_project_t *p = NULL;
setprent();
while ((p = getprent()) != NULL)
if (strcmp(p->pr_name, name) == 0)
break;
endprent();
return p;
}
fs_project_t *
getprprid(
prid_t prid)
{
fs_project_t *p = NULL;
setprent();
while ((p = getprent()) != NULL)
if (p->pr_prid == prid)
break;
endprent();
return p;
}
fs_project_path_t *
getprpathent(void)
{
static fs_project_path_t pp;
static char project_paths_buffer[1024];
char *nmstart, *nmend;
size_t size = sizeof(project_paths_buffer) - 1;
if (!project_paths)
return NULL;
for (;;) {
if (!fgets(project_paths_buffer, size, project_paths))
break;
/*
* /etc/projects format -- "id:pathname\n", ignore "^#..."
*/
if (project_paths_buffer[0] == '#')
continue;
nmstart = strchr(project_paths_buffer, ':');
if (!nmstart)
continue;
if ((nmstart + 1) - project_paths_buffer >= size)
continue;
nmend = strchr(nmstart + 1, '\n');
if (nmend)
*nmend = '\0';
*nmstart = '\0';
pp.pp_pathname = nmstart + 1;
pp.pp_prid = atoi(&project_paths_buffer[0]);
return &pp;
}
return NULL;
}
int
getprojid(
const char *name,
int fd,
prid_t *projid)
{
struct fsxattr fsx;
if (xfsctl(name, fd, FS_IOC_FSGETXATTR, &fsx)) {
perror("FS_IOC_FSGETXATTR");
return -1;
}
*projid = fsx.fsx_projid;
return 0;
}
int
setprojid(
const char *name,
int fd,
prid_t projid)
{
struct fsxattr fsx;
int error;
if ((error = xfsctl(name, fd, FS_IOC_FSGETXATTR, &fsx)) == 0) {
fsx.fsx_projid = projid;
error = xfsctl(name, fd, FS_IOC_FSSETXATTR, &fsx);
}
return error;
}
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