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Sync OpenBSD patchset 565: 

Get a u_char from the string, otherwise it isn't possible to enter \0377 as it
is mistaken for EOF (doh).

Also drop an unused argument.
pull/1/head
Tiago Cunha 2009-11-28 14:45:30 +00:00
parent d517ffe7c9
commit d9001ead7d
1 changed files with 9 additions and 7 deletions
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16
cmd-string.c
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@ -1,4 +1,4 @@
/* $Id: cmd-string.c,v 1.27 2009-11-22 00:13:34 tcunha Exp $ */
/* $Id: cmd-string.c,v 1.28 2009-11-28 14:45:30 tcunha Exp $ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
@ -32,7 +32,7 @@
*/
int cmd_string_getc(const char *, size_t *);
void cmd_string_ungetc(const char *, size_t *);
void cmd_string_ungetc(size_t *);
char *cmd_string_string(const char *, size_t *, char, int);
char *cmd_string_variable(const char *, size_t *);
char *cmd_string_expand_tilde(const char *, size_t *);
@ -40,13 +40,15 @@ char *cmd_string_expand_tilde(const char *, size_t *);
int
cmd_string_getc(const char *s, size_t *p)
{
if (s[*p] == '\0')
const u_char *ucs = s;
if (ucs[*p] == '\0')
return (EOF);
return (s[(*p)++]);
return (ucs[(*p)++]);
}
void
cmd_string_ungetc(unused const char *s, size_t *p)
cmd_string_ungetc(size_t *p)
{
(*p)--;
}
@ -306,7 +308,7 @@ cmd_string_variable(const char *s, size_t *p)
if (fch == '{' && ch != '}')
goto error;
if (ch != EOF && fch != '{')
cmd_string_ungetc(s, p); /* ch */
cmd_string_ungetc(p); /* ch */
buf = xrealloc(buf, 1, len + 1);
buf[len] = '\0';
@ -337,7 +339,7 @@ cmd_string_expand_tilde(const char *s, size_t *p)
home = pw->pw_dir;
}
} else {
cmd_string_ungetc(s, p);
cmd_string_ungetc(p);
if ((username = cmd_string_string(s, p, '/', 0)) == NULL)
return (NULL);
if ((pw = getpwnam(username)) != NULL)