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Add better argument handling

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Submitted by: jmz
This commit is contained in:
ache 1995-01-10 21:19:57 +00:00
parent ed41b47516
commit 6cbf9ac3bb
1 changed files with 41 additions and 3 deletions
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44
sbin/init/init.c
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@ -865,14 +865,14 @@ char **
construct_argv(command)
char *command;
{
char *strk (char *);
register int argc = 0;
register char **argv = (char **) malloc(((strlen(command) + 1) / 2 + 1)
* sizeof (char *));
static const char separators[] = " \t";
if ((argv[argc++] = strtok(command, separators)) == 0)
if ((argv[argc++] = strk(command)) == 0)
return 0;
while (argv[argc++] = strtok((char *) 0, separators))
while (argv[argc++] = strk((char *) 0))
continue;
return argv;
}
@ -1378,3 +1378,41 @@ death()
return (state_func_t) single_user;
}
char *
strk (char *p)
{
static char *t;
char *q;
int c;
if (p)
t = p;
if (!t)
return 0;
c = *t;
while (c == ' ' || c == '\t' )
c = *++t;
if (!c) {
t = 0;
return 0;
}
q = t;
if (c == '\'') {
c = *++t;
q = t;
while (c && c != '\'')
c = *++t;
if (!c) /* unterminated string */
q = t = 0;
else
*t++ = 0;
} else {
while (c && c != ' ' && c != '\t' )
c = *++t;
*t++ = 0;
if (!c)
t = 0;
}
return q;
}