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libbb: random hunt for statics

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function                                             old     new   delta
bb_askpass                                           306     321     +15
pw_encrypt                                            38      39      +1
static.passwd                                         64       4     -60
static.cipher                                        128       4    -124
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 16/-184)          Total: -168 bytes

# size busybox_old busybox_unstripped
   text    data     bss     dec     hex filename
 683705    2704   14240  700649   ab0e9 busybox_old
 683721    2704   14064  700489   ab049 busybox_unstripped
This commit is contained in:
Denis Vlasenko 2007-06-18 10:35:06 +00:00
parent 2c91efb7c2
commit 91e149a373
2 changed files with 16 additions and 13 deletions
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17
libbb/bb_askpass.c
View File

@ -9,7 +9,6 @@
*/
#include <termios.h>
//#include <sys/ioctl.h>
#include "libbb.h"
@ -20,18 +19,22 @@ static void askpass_timeout(int ATTRIBUTE_UNUSED ignore)
char *bb_askpass(int timeout, const char * prompt)
{
static char passwd[64];
/* Was static char[BIGNUM] */
enum { sizeof_passwd = 128 };
static char *passwd;
char *ret;
int i;
struct sigaction sa;
struct termios old, new;
if (!passwd)
passwd = xmalloc(sizeof_passwd);
memset(passwd, 0, sizeof_passwd);
tcgetattr(STDIN_FILENO, &old);
tcflush(STDIN_FILENO, TCIFLUSH);
memset(passwd, 0, sizeof(passwd));
fputs(prompt, stdout);
fflush(stdout);
@ -48,7 +51,9 @@ char *bb_askpass(int timeout, const char * prompt)
}
ret = NULL;
if (read(STDIN_FILENO, passwd, sizeof(passwd)-1) > 0) {
/* On timeout, read will hopefully be interrupted by SIGALRM,
* and we return NULL */
if (read(STDIN_FILENO, passwd, sizeof_passwd-1) > 0) {
ret = passwd;
i = 0;
/* Last byte is guaranteed to be 0
@ -64,7 +69,7 @@ char *bb_askpass(int timeout, const char * prompt)
}
tcsetattr(STDIN_FILENO, TCSANOW, &old);
puts("");
putchar('\n');
fflush(stdout);
return ret;
}

12
libbb/pw_encrypt.c
View File

@ -12,18 +12,16 @@
char *pw_encrypt(const char *clear, const char *salt)
{
static char cipher[128];
char *cp;
/* Was static char[BIGNUM]. Malloced thing works as well */
static char *cipher;
#if 0 /* was CONFIG_FEATURE_SHA1_PASSWORDS, but there is no such thing??? */
if (strncmp(salt, "$2$", 3) == 0) {
return sha1_crypt(clear);
}
#endif
cp = (char *) crypt(clear, salt);
/* if crypt (a nonstandard crypt) returns a string too large,
truncate it so we don't overrun buffers and hope there is
enough security in what's left */
safe_strncpy(cipher, cp, sizeof(cipher));
free(cipher);
cipher = xstrdup(crypt(clear, salt));
return cipher;
}