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Fix potential string truncations with snprintf

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jfreegman 2017-09-01 17:36:17 -04:00
parent 52dd60dc86
commit f2c116feb3
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GPG Key ID: 3627F3144076AE63
3 changed files with 4 additions and 4 deletions
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2
src/autocomplete.c
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@ -287,7 +287,7 @@ int dir_match(ToxWindow *self, Tox *m, const wchar_t *line, const wchar_t *cmd)
if (dp == NULL)
return -1;
char dirnames[MAX_DIRS][NAME_MAX];
char dirnames[MAX_DIRS][NAME_MAX + 1];
struct dirent *entry;
int dircount = 0;

2
src/chat.c
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@ -561,7 +561,7 @@ static void chat_onFileRecv(ToxWindow *self, Tox *m, uint32_t friendnum, uint32_
bytes_convert_str(sizestr, sizeof(sizestr), file_size);
line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "File transfer request for '%s' (%s)", filename, sizestr);
char file_path[MAX_STR_SIZE];
char file_path[PATH_MAX + name_length + 1];
size_t path_len = name_length;
/* use specified download path in config if possible */

4
src/toxic.c
View File

@ -578,7 +578,7 @@ static void init_tox_options(struct Tox_Options *tox_opts)
tox_opts->proxy_host = arg_opts.proxy_address;
const char *ps = tox_opts->proxy_type == TOX_PROXY_TYPE_SOCKS5 ? "SOCKS5" : "HTTP";
char tmp[48];
char tmp[sizeof(arg_opts.proxy_address) + MAX_STR_SIZE];
snprintf(tmp, sizeof(tmp), "Using %s proxy %s : %d", ps, arg_opts.proxy_address, arg_opts.proxy_port);
queue_init_message("%s", tmp);
}
@ -1256,7 +1256,7 @@ int main(int argc, char **argv)
cleanup_init_messages();
/* set user avatar from config file. if no path is supplied tox_unset_avatar is called */
char avatarstr[MAX_STR_SIZE];
char avatarstr[PATH_MAX + 11];
snprintf(avatarstr, sizeof(avatarstr), "/avatar \"%s\"", user_settings->avatar_path);
execute(prompt->chatwin->history, prompt, m, avatarstr, GLOBAL_COMMAND_MODE);