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passphrase_read: Factor out error handling

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This commit is contained in:
Shea Levy 2011-09-24 15:13:23 -04:00
parent f5c618a3fe
commit 505b464e68
1 changed files with 18 additions and 10 deletions
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28
libfreerdp-utils/passphrase.c
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@ -45,7 +45,7 @@ char* freerdp_passphrase_read(const char* prompt, char* buf, size_t bufsiz)
ctermid(term_name);
term_id = open(term_name, O_RDWR);
if (term_id == -1)
return NULL;
goto error;
if (tcgetattr(term_id, &orig_flags) != -1)
{
@ -57,7 +57,7 @@ char* freerdp_passphrase_read(const char* prompt, char* buf, size_t bufsiz)
}
if (write(term_id, prompt, strlen(prompt) + sizeof '\0') == (ssize_t) -1)
return NULL;
goto error;
buf_iter = buf;
while ((nbytes = read(term_id, &read_char, sizeof read_char)) == (sizeof read_char))
@ -75,22 +75,30 @@ char* freerdp_passphrase_read(const char* prompt, char* buf, size_t bufsiz)
buf_iter = NULL;
read_char = '\0';
if (nbytes == (ssize_t) -1)
return NULL;
goto error;
if (reset_terminal)
{
if (tcsetattr(term_id, TCSADRAIN, &orig_flags) == -1)
{
int saved_errno = errno;
tcsetattr(term_id, TCSANOW, &orig_flags);
errno = saved_errno;
return NULL;
}
goto error;
reset_terminal = 0;
}
if (close(term_id) == -1)
return NULL;
goto error;
return buf;
error:
{
int saved_errno = errno;
buf_iter = NULL;
read_char = '\0';
if (reset_terminal)
tcsetattr(term_id, TCSANOW, &orig_flags);
close(term_id);
errno = saved_errno;
return NULL;
}
}