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authorRafael G. Martins <rafael@rafaelmartins.eng.br>2019-04-23 22:41:31 +0200
committerRafael G. Martins <rafael@rafaelmartins.eng.br>2019-04-25 20:26:24 +0200
commitf09e36acfe2db50e0452ba1e19b13f4395a8d704 (patch)
tree98128638131359eee2b91308284b965719388748 /src/blogc-make
parent4120e6adf557b01b8e43f8b5abe52c85602def64 (diff)
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make: do not follow symlinks when resolving blogcfile path
Diffstat (limited to 'src/blogc-make')
-rw-r--r--src/blogc-make/ctx.c21
-rw-r--r--src/blogc-make/utils.c35
-rw-r--r--src/blogc-make/utils.h3
3 files changed, 49 insertions, 10 deletions
diff --git a/src/blogc-make/ctx.c b/src/blogc-make/ctx.c
index b8b7bb6..423b334 100644
--- a/src/blogc-make/ctx.c
+++ b/src/blogc-make/ctx.c
@@ -172,22 +172,21 @@ bm_ctx_new(bm_ctx_t *base, const char *settings_file, const char *argv0,
if (settings_file == NULL || err == NULL || *err != NULL)
return NULL;
- char real_filename[PATH_MAX];
- if (NULL == realpath(settings_file, real_filename)) {
- *err = bc_error_new_printf(BLOGC_MAKE_ERROR_SETTINGS,
- "Failed to resolve settings file (%s): %s", settings_file,
- strerror(errno));
+ char *abs_filename = bm_abspath(settings_file, err);
+ if (*err != NULL)
return NULL;
- }
size_t content_len;
- char *content = bc_file_get_contents(real_filename, true, &content_len,
+ char *content = bc_file_get_contents(abs_filename, true, &content_len,
err);
- if (*err != NULL)
+ if (*err != NULL) {
+ free(abs_filename);
return NULL;
+ }
bm_settings_t *settings = bm_settings_parse(content, content_len, err);
if (settings == NULL || *err != NULL) {
+ free(abs_filename);
free(content);
return NULL;
}
@@ -208,6 +207,7 @@ bm_ctx_new(bm_ctx_t *base, const char *settings_file, const char *argv0,
atom_template = bm_atom_deploy(settings, err);
atom_template_tmp = true;
if (*err != NULL) {
+ free(abs_filename);
bm_settings_free(settings);
return NULL;
}
@@ -228,8 +228,9 @@ bm_ctx_new(bm_ctx_t *base, const char *settings_file, const char *argv0,
}
rv->settings = settings;
- rv->settings_fctx = bm_filectx_new(rv, real_filename, NULL, NULL);
- rv->root_dir = bc_strdup(dirname(real_filename));
+ rv->settings_fctx = bm_filectx_new(rv, abs_filename, NULL, NULL);
+ rv->root_dir = bc_strdup(dirname(abs_filename));
+ free(abs_filename);
const char *output_dir = getenv("OUTPUT_DIR");
rv->short_output_dir = bc_strdup(output_dir != NULL ? output_dir : "_build");
diff --git a/src/blogc-make/utils.c b/src/blogc-make/utils.c
index 0c984f6..91b7b53 100644
--- a/src/blogc-make/utils.c
+++ b/src/blogc-make/utils.c
@@ -6,10 +6,18 @@
* See the file LICENSE.
*/
+#include <errno.h>
+#include <limits.h>
#include <stdbool.h>
#include <string.h>
+#include <unistd.h>
+#include "../common/error.h"
#include "../common/utils.h"
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
char*
bm_generate_filename(const char *dir, const char *prefix, const char *fname,
@@ -59,3 +67,30 @@ bm_generate_filename(const char *dir, const char *prefix, const char *fname,
return bc_string_free(rv, false);
}
+
+
+char*
+bm_abspath(const char *path, bc_error_t **err)
+{
+ if (err == NULL || *err != NULL)
+ return NULL;
+
+ if (path[0] == '/') {
+ return bc_strdup(path);
+ }
+
+ char cwd[PATH_MAX];
+ if (NULL == getcwd(cwd, sizeof(cwd))) {
+ *err = bc_error_new_printf(BLOGC_MAKE_ERROR_UTILS,
+ "Failed to detect absolute path (%s): %s", path, strerror(errno));
+ return NULL;
+ }
+
+ if (cwd[0] != '/') {
+ *err = bc_error_new_printf(BLOGC_MAKE_ERROR_UTILS,
+ "Failed to get current working directory: %s", cwd);
+ return NULL;
+ }
+
+ return bc_strdup_printf("%s/%s", cwd, path);
+}
diff --git a/src/blogc-make/utils.h b/src/blogc-make/utils.h
index a3dfea0..5353c01 100644
--- a/src/blogc-make/utils.h
+++ b/src/blogc-make/utils.h
@@ -9,7 +9,10 @@
#ifndef _MAKE_UTILS_H
#define _MAKE_UTILS_H
+#include "../common/error.h"
+
char* bm_generate_filename(const char *dir, const char *prefix, const char *fname,
const char *ext);
+char* bm_abspath(const char *path, bc_error_t **err);
#endif /* _MAKE_UTILS_H */