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(sl_command_loop): try to handle user pressing C-c

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@9499 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
2001-01-26 14:58:26 +00:00
parent 2e56027910
commit 3a85c36b4d
1 changed files with 25 additions and 5 deletions
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30
lib/sl/sl.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 1995 - 2000 Kungliga Tekniska H<>gskolan
* Copyright (c) 1995 - 2001 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
@@ -37,6 +37,7 @@ RCSID("$Id$");
#endif
#include "sl_locl.h"
#include <setjmp.h>
static size_t
print_sl (FILE *stream, int mdoc, int longp, SL_cmd *c)
@@ -273,9 +274,28 @@ sl_make_argv(char *line, int *ret_argc, char ***ret_argv)
return 0;
}
static jmp_buf sl_jmp;
static void sl_sigint(int sig)
{
longjmp(sl_jmp, 1);
}
static char *sl_readline(const char *prompt)
{
char *s;
void (*old)(int);
old = signal(SIGINT, sl_sigint);
if(setjmp(sl_jmp))
printf("\n");
s = readline((char*)prompt);
signal(SIGINT, old);
return s;
}
/* return values: 0 on success, -1 on fatal error, or return value of command */
int
sl_command_loop(SL_cmd *cmds, char *prompt, void **data)
sl_command_loop(SL_cmd *cmds, const char *prompt, void **data)
{
int ret = 0;
char *buf;
@@ -283,7 +303,7 @@ sl_command_loop(SL_cmd *cmds, char *prompt, void **data)
char **argv;
ret = 0;
buf = readline(prompt);
buf = sl_readline(prompt);
if(buf == NULL)
return 1;
@@ -308,7 +328,7 @@ sl_command_loop(SL_cmd *cmds, char *prompt, void **data)
}
int
sl_loop(SL_cmd *cmds, char *prompt)
sl_loop(SL_cmd *cmds, const char *prompt)
{
void *data = NULL;
int ret;
@@ -318,7 +338,7 @@ sl_loop(SL_cmd *cmds, char *prompt)
}
void
sl_apropos (SL_cmd *cmd, char *topic)
sl_apropos (SL_cmd *cmd, const char *topic)
{
for (; cmd->name != NULL; ++cmd)
if (cmd->usage != NULL && strstr(cmd->usage, topic) != NULL)