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examples/text-input: stop using strcpy/strcat

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These functions are too easy to misuse, they don't do bounds
checking.
This commit is contained in:
Simon Ser 2022-06-04 23:02:42 +02:00
parent 2b10ae62ad
commit 366e8e3b91
1 changed files with 6 additions and 6 deletions
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12
examples/text-input.c
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@ -244,15 +244,15 @@ static void text_input_handle_done(void *data,
buffer[strlen(buffer) - delete_before] = '\0'; buffer[strlen(buffer) - delete_before] = '\0';
} }
char *commit_string = current.commit; const char *commit_string = current.commit;
if (!commit_string) { if (!commit_string) {
commit_string = ""; commit_string = "";
} }
char *old_buffer = buffer; size_t new_size = strlen(buffer) + strlen(commit_string) + 1;
buffer = calloc(strlen(buffer) + strlen(commit_string) + 1, sizeof(char)); // realloc may fail anyway char *new_buffer = calloc(new_size, sizeof(char)); // realloc may fail anyway
strcpy(buffer, old_buffer); snprintf(new_buffer, new_size, "%s%s", buffer, commit_string);
free(old_buffer); free(buffer);
strcat(buffer, commit_string); buffer = new_buffer;
send_status_update(zwp_text_input_v3); send_status_update(zwp_text_input_v3);
show_status(); show_status();