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apps/system: fix command history behavior (2)

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N/A
Fixing "last command" misbehavior when one command in history is a
substring of another.

Signed-off-by: Peter Bee <bijunda1@xiaomi.com>
Change-Id: I1ea205e3f2461b6c2377147cb9fc878ba5b19b4f
This commit is contained in:
Peter Bee 2021-03-19 13:42:52 +08:00 committed by Alan Carvalho de Assis
parent 01f8bef2ba
commit 8b66a6238a
1 changed files with 3 additions and 1 deletions
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4
system/readline/readline_common.c
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@ -601,6 +601,8 @@ ssize_t readline_common(FAR struct rl_common_s *vtbl, FAR char *buf,
buf[nch++] = g_cmdhist.buf[idx][i];
RL_PUTC(vtbl, g_cmdhist.buf[idx][i]);
}
buf[nch] = '\0';
}
}
#endif /* CONFIG_READLINE_CMD_HISTORY */
@ -682,7 +684,7 @@ ssize_t readline_common(FAR struct rl_common_s *vtbl, FAR char *buf,
* buffer, don't save it again.
*/
if (strncmp(buf, g_cmdhist.buf[g_cmdhist.head], nch) != 0)
if (strncmp(buf, g_cmdhist.buf[g_cmdhist.head], nch + 1) != 0)
{
g_cmdhist.head = (g_cmdhist.head + 1) % RL_CMDHIST_LEN;