Bug fixes

src/parsing/font.c

@@ -142,6 +142,9 @@ void parse_font(const char *buf, size_t buf_len, document_t *doc) {
     if (library == NULL) {
         FT_Init_FreeType(&library);
     }
+    if (buf == NULL) {
+        return;
+    }
 
     FT_Face face;
     FT_Error err = FT_New_Memory_Face(library, (unsigned char *) buf, buf_len, 0, &face);

src/parsing/parse.c

@@ -16,7 +16,6 @@ void *read_all(parse_job_t *job, const char *buf, int bytes_read, int *fd) {
             if (*fd == -1) {
                 perror("open");
                 printf("%s\n", job->filepath);
-                free(job);
                 return NULL;
             }
         }
@@ -25,6 +24,7 @@ void *read_all(parse_job_t *job, const char *buf, int bytes_read, int *fd) {
         int ret = read(*fd, full_buf + bytes_read, job->info.st_size - bytes_read);
         if (ret == -1) {
             perror("read");
+            return NULL;
         }
     }
 
@@ -108,7 +108,7 @@ void parse(void *arg) {
         void *pdf_buf = read_all(job, (char *) buf, bytes_read, &fd);
         parse_pdf(pdf_buf, doc.size, &doc);
 
-        if (pdf_buf != buf) {
+        if (pdf_buf != buf && pdf_buf != NULL) {
             free(pdf_buf);
         }
 
@@ -119,7 +119,7 @@ void parse(void *arg) {
         void *font_buf = read_all(job, (char *) buf, bytes_read, &fd);
         parse_font(font_buf, doc.size, &doc);
 
-        if (font_buf != buf) {
+        if (font_buf != buf && font_buf != NULL) {
             free(font_buf);
         }
     }

src/parsing/pdf.c

@@ -114,6 +114,10 @@ int read_stext_block(fz_stext_block *block, text_buffer_t *tex) {
 
 void parse_pdf(void *buf, size_t buf_len, document_t *doc) {
 
+    if (buf == NULL) {
+        return;
+    }
+
     static int mu_is_initialized = 0;
     if (!mu_is_initialized) {
         pthread_mutex_init(&ScanCtx.mupdf_mu, NULL);