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Use external_call to get password via eval_password command

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Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>
This commit is contained in:
Pierre Mazière 2020-05-24 16:39:32 +02:00
parent d92c576aa5
commit fad77d9d70
1 changed files with 22 additions and 24 deletions
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46
src/config/account.c
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@ -194,32 +194,30 @@ account_eval_password(ProfAccount *account)
assert(account != NULL);
assert(account->eval_password != NULL);
// Evaluate as shell command to retrieve password
GString *cmd = g_string_new("");
g_string_append_printf(cmd, "%s 2>/dev/null", account->eval_password);
gchar **output = NULL;
gchar **argv = g_strsplit(account->eval_password, " ", 0);
FILE *stream = popen(cmd->str, "r");
g_string_free(cmd, TRUE);
if (stream) {
// Limit to READ_BUF_SIZE bytes to prevent overflows in the case of a poorly chosen command
account->password = g_malloc(READ_BUF_SIZE);
if (!account->password) {
log_error("Failed to allocate enough memory to read eval_password output");
return FALSE;
}
account->password = fgets(account->password, READ_BUF_SIZE, stream);
pclose(stream);
if (!account->password) {
log_error("No result from eval_password.");
return FALSE;
}
if (!call_external(argv, &output, NULL)) {
g_strfreev(argv);
argv = NULL;
return FALSE;
}
// strip trailing newline
if (g_str_has_suffix(account->password, "\n")) {
account->password[strlen(account->password)-1] = '\0';
}
} else {
log_error("popen failed when running eval_password.");
g_strfreev(argv);
if (!output || !output[0]) {
log_error("Failed to read eval_password output");
g_strfreev(output);
output = NULL;
return FALSE;
}
account->password = strdup(output[0]);
g_strfreev(output);
output = NULL;
if (!account->password) {
log_error("Failed to allocate enough memory to read eval_password output");
return FALSE;
}