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authorChristian Göttsche <cgzones@googlemail.com>2023-08-07 12:46:40 +0200
committerDmitry V. Levin <ldv@strace.io>2023-08-07 10:46:40 +0000
commit43abfff43537092e20bc129f8208d082e73aff1a (patch)
tree0a474a6ecf44fd9b0090d75f0f528fb9b55e62ce /modules/pam_namespace/pam_namespace.c
parent4020ca8c0fe3ac88eccc5c62aa8d8c63a4043578 (diff)
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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/pam_namespace.c')
-rw-r--r--modules/pam_namespace/pam_namespace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/pam_namespace/pam_namespace.c b/modules/pam_namespace/pam_namespace.c
index f34ce934..48690b8d 100644
--- a/modules/pam_namespace/pam_namespace.c
+++ b/modules/pam_namespace/pam_namespace.c
@@ -485,7 +485,7 @@ static int process_line(char *line, const char *home, const char *rhome,
/*
* skip the leading white space
*/
- while (*line && isspace(*line))
+ while (*line && isspace((unsigned char)*line))
line++;
/*