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-rw-r--r--scan-tree.c160
1 files changed, 89 insertions, 71 deletions
diff --git a/scan-tree.c b/scan-tree.c
index 05caba5..beb584b 100644
--- a/scan-tree.c
+++ b/scan-tree.c
@@ -12,38 +12,38 @@
#include "configfile.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];
+ struct strbuf pathbuf = STRBUF_INIT;
+ int result = 0;
- if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
- fprintf(stderr, "Insanely long path: %s\n", path);
- return 0;
- }
- if (stat(buf, &st)) {
+ strbuf_addf(&pathbuf, "%s/objects", path);
+ if (stat(pathbuf.buf, &st)) {
if (errno != ENOENT)
fprintf(stderr, "Error checking path %s: %s (%d)\n",
path, strerror(errno), errno);
- return 0;
+ goto out;
}
if (!S_ISDIR(st.st_mode))
- return 0;
+ goto out;
- sprintf(buf, "%s/HEAD", path);
- if (stat(buf, &st)) {
+ strbuf_reset(&pathbuf);
+ strbuf_addf(&pathbuf, "%s/HEAD", path);
+ if (stat(pathbuf.buf, &st)) {
if (errno != ENOENT)
fprintf(stderr, "Error checking path %s: %s (%d)\n",
path, strerror(errno), errno);
- return 0;
+ goto out;
}
if (!S_ISREG(st.st_mode))
- return 0;
+ goto out;
- return 1;
+ result = 1;
+out:
+ strbuf_release(&pathbuf);
+ return result;
}
struct cgit_repo *repo;
@@ -75,47 +75,61 @@ static char *xstrrchr(char *s, char *from, int c)
return from < s ? NULL : from;
}
-static void add_repo(const char *base, const char *path, repo_config_fn fn)
+static void add_repo(const char *base, struct strbuf *path, repo_config_fn fn)
{
struct stat st;
struct passwd *pwd;
- char *rel, *p, *slash;
+ size_t pathlen;
+ struct strbuf rel = STRBUF_INIT;
+ char *p, *slash;
int n;
size_t size;
- if (stat(path, &st)) {
+ if (stat(path->buf, &st)) {
fprintf(stderr, "Error accessing %s: %s (%d)\n",
- path, strerror(errno), errno);
+ path->buf, strerror(errno), errno);
return;
}
- if (ctx.cfg.strict_export && stat(fmt("%s/%s", path, ctx.cfg.strict_export), &st))
- return;
+ strbuf_addch(path, '/');
+ pathlen = path->len;
- if (!stat(fmt("%s/noweb", path), &st))
+ if (ctx.cfg.strict_export) {
+ strbuf_addstr(path, ctx.cfg.strict_export);
+ if(stat(path->buf, &st))
+ return;
+ strbuf_setlen(path, pathlen);
+ }
+
+ strbuf_addstr(path, "noweb");
+ if (!stat(path->buf, &st))
return;
+ strbuf_setlen(path, pathlen);
- if (base == path)
- rel = xstrdup(path);
+ if (strncmp(base, path->buf, strlen(base)))
+ strbuf_addbuf(&rel, path);
else
- rel = xstrdup(path + strlen(base) + 1);
+ strbuf_addstr(&rel, path->buf + strlen(base) + 1);
- if (!strcmp(rel + strlen(rel) - 5, "/.git"))
- rel[strlen(rel) - 5] = '\0';
+ if (!strcmp(rel.buf + rel.len - 5, "/.git"))
+ strbuf_setlen(&rel, rel.len - 5);
- repo = cgit_add_repo(rel);
+ repo = cgit_add_repo(rel.buf);
config_fn = fn;
- if (ctx.cfg.enable_git_config)
- git_config_from_file(gitconfig_config, fmt("%s/config", path), NULL);
+ if (ctx.cfg.enable_git_config) {
+ strbuf_addstr(path, "config");
+ git_config_from_file(gitconfig_config, path->buf, NULL);
+ strbuf_setlen(path, pathlen);
+ }
if (ctx.cfg.remove_suffix)
if ((p = strrchr(repo->url, '.')) && !strcmp(p, ".git"))
*p = '\0';
- repo->path = xstrdup(path);
+ repo->path = xstrdup(path->buf);
while (!repo->owner) {
if ((pwd = getpwuid(st.st_uid)) == NULL) {
fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
- path, strerror(errno), errno);
+ path->buf, strerror(errno), errno);
break;
}
if (pwd->pw_gecos)
@@ -125,30 +139,32 @@ static void add_repo(const char *base, const char *path, repo_config_fn fn)
}
if (repo->desc == cgit_default_repo_desc || !repo->desc) {
- p = fmt("%s/description", path);
- if (!stat(p, &st))
- readfile(p, &repo->desc, &size);
+ strbuf_addstr(path, "description");
+ if (!stat(path->buf, &st))
+ readfile(path->buf, &repo->desc, &size);
+ strbuf_setlen(path, pathlen);
}
if (!repo->readme) {
- p = fmt("%s/README.html", path);
- if (!stat(p, &st))
+ strbuf_addstr(path, "README.html");
+ if (!stat(path->buf, &st))
repo->readme = "README.html";
+ strbuf_setlen(path, pathlen);
}
if (ctx.cfg.section_from_path) {
n = ctx.cfg.section_from_path;
if (n > 0) {
- slash = rel;
+ slash = rel.buf;
while (slash && n && (slash = strchr(slash, '/')))
n--;
} else {
- slash = rel + strlen(rel);
- while (slash && n && (slash = xstrrchr(rel, slash, '/')))
+ slash = rel.buf + rel.len;
+ while (slash && n && (slash = xstrrchr(rel.buf, slash, '/')))
n++;
}
if (slash && !n) {
*slash = '\0';
- repo->section = xstrdup(rel);
+ repo->section = xstrdup(rel.buf);
*slash = '/';
if (!prefixcmp(repo->name, repo->section)) {
repo->name += strlen(repo->section);
@@ -158,19 +174,19 @@ static void add_repo(const char *base, const char *path, repo_config_fn fn)
}
}
- p = fmt("%s/cgitrc", path);
- if (!stat(p, &st))
- parse_configfile(xstrdup(p), &repo_config);
-
+ strbuf_addstr(path, "cgitrc");
+ if (!stat(path->buf, &st))
+ parse_configfile(xstrdup(path->buf), &repo_config);
- free(rel);
+ strbuf_release(&rel);
}
static void scan_path(const char *base, const char *path, repo_config_fn fn)
{
DIR *dir = opendir(path);
struct dirent *ent;
- char *buf;
+ struct strbuf pathbuf = STRBUF_INIT;
+ size_t pathlen = strlen(path);
struct stat st;
if (!dir) {
@@ -178,14 +194,22 @@ static void scan_path(const char *base, const char *path, repo_config_fn fn)
path, strerror(errno), errno);
return;
}
- if (is_git_dir(path)) {
- add_repo(base, path, fn);
+
+ strbuf_add(&pathbuf, path, strlen(path));
+ if (is_git_dir(pathbuf.buf)) {
+ add_repo(base, &pathbuf, fn);
goto end;
}
- if (is_git_dir(fmt("%s/.git", path))) {
- add_repo(base, fmt("%s/.git", path), fn);
+ strbuf_addstr(&pathbuf, "/.git");
+ if (is_git_dir(pathbuf.buf)) {
+ add_repo(base, &pathbuf, fn);
goto end;
}
+ /*
+ * Add one because we don't want to lose the trailing '/' when we
+ * reset the length of pathbuf in the loop below.
+ */
+ pathlen++;
while ((ent = readdir(dir)) != NULL) {
if (ent->d_name[0] == '.') {
if (ent->d_name[1] == '\0')
@@ -195,24 +219,18 @@ static void scan_path(const char *base, const char *path, repo_config_fn fn)
if (!ctx.cfg.scan_hidden_path)
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)) {
+ strbuf_setlen(&pathbuf, pathlen);
+ strbuf_addstr(&pathbuf, ent->d_name);
+ if (stat(pathbuf.buf, &st)) {
fprintf(stderr, "Error checking path %s: %s (%d)\n",
- buf, strerror(errno), errno);
- free(buf);
+ pathbuf.buf, strerror(errno), errno);
continue;
}
if (S_ISDIR(st.st_mode))
- scan_path(base, buf, fn);
- free(buf);
+ scan_path(base, pathbuf.buf, fn);
}
end:
+ strbuf_release(&pathbuf);
closedir(dir);
}
@@ -220,7 +238,7 @@ end:
void scan_projects(const char *path, const char *projectsfile, repo_config_fn fn)
{
- char line[MAX_PATH * 2], *z;
+ struct strbuf line = STRBUF_INIT;
FILE *projects;
int err;
@@ -230,19 +248,19 @@ void scan_projects(const char *path, const char *projectsfile, repo_config_fn fn
projectsfile, strerror(errno), errno);
return;
}
- while (fgets(line, sizeof(line), projects) != NULL) {
- for (z = &lastc(line);
- strlen(line) && strchr("\n\r", *z);
- z = &lastc(line))
- *z = '\0';
- if (strlen(line))
- scan_path(path, fmt("%s/%s", path, line), fn);
+ while (strbuf_getline(&line, projects, '\n') != EOF) {
+ if (!line.len)
+ continue;
+ strbuf_insert(&line, 0, "/", 1);
+ strbuf_insert(&line, 0, path, strlen(path));
+ scan_path(path, line.buf, fn);
}
if ((err = ferror(projects))) {
fprintf(stderr, "Error reading from projectsfile %s: %s (%d)\n",
projectsfile, strerror(err), err);
}
fclose(projects);
+ strbuf_release(&line);
}
void scan_tree(const char *path, repo_config_fn fn)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.