diff options
| author | Christian Göttsche <cgzones@googlemail.com> | 2023-08-07 12:46:40 +0200 |
|---|---|---|
| committer | Dmitry V. Levin <ldv@strace.io> | 2023-08-07 10:46:40 +0000 |
| commit | 43abfff43537092e20bc129f8208d082e73aff1a (patch) | |
| tree | 0a474a6ecf44fd9b0090d75f0f528fb9b55e62ce /modules/pam_namespace/argv_parse.c | |
| parent | 4020ca8c0fe3ac88eccc5c62aa8d8c63a4043578 (diff) | |
| download | pam-43abfff43537092e20bc129f8208d082e73aff1a.tar.gz pam-43abfff43537092e20bc129f8208d082e73aff1a.tar.bz2 pam-43abfff43537092e20bc129f8208d082e73aff1a.zip | |
modules: cast to unsigned char for character handling function
Character handling functions, like isspace(3), expect a value
representable as unsigned char or equal to EOF. Otherwise the behavior
is undefined.
See https://wiki.sei.cmu.edu/confluence/display/c/STR37-C.+Arguments+to+character-handling+functions+must+be+representable+as+an+unsigned+char
Diffstat (limited to 'modules/pam_namespace/argv_parse.c')
| -rw-r--r-- | modules/pam_namespace/argv_parse.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/modules/pam_namespace/argv_parse.c b/modules/pam_namespace/argv_parse.c index 40510542..7d418e05 100644 --- a/modules/pam_namespace/argv_parse.c +++ b/modules/pam_namespace/argv_parse.c @@ -56,7 +56,7 @@ int argv_parse(const char *in_buf, int *ret_argc, char ***ret_argv) outcp = buf; for (cp = in_buf; (ch = *cp); cp++) { if (state == STATE_WHITESPACE) { - if (isspace((int) ch)) + if (isspace((unsigned char)ch)) continue; /* Not whitespace, so start a new token */ state = STATE_TOKEN; @@ -81,7 +81,7 @@ int argv_parse(const char *in_buf, int *ret_argc, char ***ret_argv) continue; } /* Must be processing characters in a word */ - if (isspace((int) ch)) { + if (isspace((unsigned char)ch)) { /* * Terminate the current word and start * looking for the beginning of the next word. |