Print /proc/<pid>/maps on segfault

1 files changed, 26 insertions, 1 deletions

diff --git a/common/readline.c b/common/readline.c
index e75b183f..76ed6926 100644
--- a/common/readline.c
+++ b/common/readline.c
@@ -3,7 +3,7 @@
 #include <stdio.h>
 
 char *read_line(FILE *file) {
-        int length = 0, size = 128;
+        size_t length = 0, size = 128;
         char *string = malloc(size);
         if (!string) {
                 return NULL;
@@ -37,3 +37,28 @@ char *read_line(FILE *file) {
         string[length] = '\0';
         return string;
 }
+
+char *read_line_buffer(FILE *file, char *string, size_t string_len) {
+        size_t length = 0;
+        if (!string) {
+                return NULL;
+        }
+        while (1) {
+                int c = getc(file);
+                if (c == EOF || c == '\n' || c == '\0') {
+                        break;
+                }
+                if (c == '\r') {
+                        continue;
+                }
+                string[length++] = c;
+                if (string_len <= length) {
+                        return NULL;
+                }
+        }
+        if (length + 1 == string_len) {
+                return NULL;
+        }
+        string[length] = '\0';
+        return string;
+}