cgit/scan-tree.c
Simon Arlott 011f2e9bdd truncate buffer before reading empty files
If readfile() reads an empty file, fgets() won't truncate the buffer
and it'll still contain the contents of the previously read file.

[lh: fixed similar issue in ui-repolist.c]

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2009-08-18 14:27:41 +02:00

138 lines
2.8 KiB
C

#include "cgit.h"
#include "html.h"
#define MAX_PATH 4096
/* return 1 if path contains a objects/ directory and a HEAD file */
static int is_git_dir(const char *path)
{
struct stat st;
static char buf[MAX_PATH];
if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
fprintf(stderr, "Insanely long path: %s\n", path);
return 0;
}
if (stat(buf, &st)) {
if (errno != ENOENT)
fprintf(stderr, "Error checking path %s: %s (%d)\n",
path, strerror(errno), errno);
return 0;
}
if (!S_ISDIR(st.st_mode))
return 0;
sprintf(buf, "%s/HEAD", path);
if (stat(buf, &st)) {
if (errno != ENOENT)
fprintf(stderr, "Error checking path %s: %s (%d)\n",
path, strerror(errno), errno);
return 0;
}
if (!S_ISREG(st.st_mode))
return 0;
return 1;
}
char *readfile(const char *path)
{
FILE *f;
static char buf[MAX_PATH];
if (!(f = fopen(path, "r")))
return NULL;
buf[0] = 0;
fgets(buf, MAX_PATH, f);
fclose(f);
return buf;
}
static void add_repo(const char *base, const char *path)
{
struct cgit_repo *repo;
struct stat st;
struct passwd *pwd;
char *p;
if (stat(path, &st)) {
fprintf(stderr, "Error accessing %s: %s (%d)\n",
path, strerror(errno), errno);
return;
}
if ((pwd = getpwuid(st.st_uid)) == NULL) {
fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
path, strerror(errno), errno);
return;
}
if (base == path)
p = fmt("%s", path);
else
p = fmt("%s", path + strlen(base) + 1);
if (!strcmp(p + strlen(p) - 5, "/.git"))
p[strlen(p) - 5] = '\0';
repo = cgit_add_repo(xstrdup(p));
repo->name = repo->url;
repo->path = xstrdup(path);
repo->owner = (pwd ? xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name) : "");
p = fmt("%s/description", path);
if (!stat(p, &st))
repo->desc = xstrdup(readfile(p));
p = fmt("%s/README.html", path);
if (!stat(p, &st))
repo->readme = "README.html";
}
static void scan_path(const char *base, const char *path)
{
DIR *dir;
struct dirent *ent;
char *buf;
struct stat st;
if (is_git_dir(path)) {
add_repo(base, path);
return;
}
dir = opendir(path);
if (!dir) {
fprintf(stderr, "Error opening directory %s: %s (%d)\n",
path, strerror(errno), errno);
return;
}
while((ent = readdir(dir)) != NULL) {
if (ent->d_name[0] == '.') {
if (ent->d_name[1] == '\0')
continue;
if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
continue;
}
buf = malloc(strlen(path) + strlen(ent->d_name) + 2);
if (!buf) {
fprintf(stderr, "Alloc error on %s: %s (%d)\n",
path, strerror(errno), errno);
exit(1);
}
sprintf(buf, "%s/%s", path, ent->d_name);
if (stat(buf, &st)) {
fprintf(stderr, "Error checking path %s: %s (%d)\n",
buf, strerror(errno), errno);
free(buf);
continue;
}
if (S_ISDIR(st.st_mode))
scan_path(base, buf);
free(buf);
}
closedir(dir);
}
void scan_tree(const char *path)
{
scan_path(path, path);
}