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Fixing an invalid read

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This commit is contained in:
Anonymus Raccoon
2020-05-21 18:45:05 +02:00
parent ad878d8c89
commit 5ce58010ab
1 changed files with 2 additions and 2 deletions
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src/key_bindings/basic_typing_functions.c
+2 -2
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@@ -21,13 +21,13 @@ int self_insert_command(int key, buffer_t *buffer, env_t *env)
int charslen = strlen(chars);
int len = (buffer->buffer ? strlen(buffer->buffer) : 0) + charslen;
if (len >= buffer->size || !buffer->buffer) {
if (len + 1 >= buffer->size || !buffer->buffer) {
buffer->buffer = realloc(buffer->buffer, buffer->size + 100);
buffer->size += 100;
}
if (!buffer->buffer)
return (-1);
for (int i = len - 1; i > buffer->pos; i--)
for (int i = len - 1; i > buffer->pos && i > charslen; i--)
buffer->buffer[i] = buffer->buffer[i - charslen];
memcpy(buffer->buffer + buffer->pos, chars, charslen);
buffer->buffer[len] = '\0';