Fix #1208, Cast isspace input to unsigned char

Jacob Hageman · Jacob Hageman · commit 31aae76209bf · 2021-03-17T15:47:11.000-04:00
diff --git a/modules/es/fsw/src/cfe_es_syslog.c b/modules/es/fsw/src/cfe_es_syslog.c
@@ -417,7 +417,7 @@ void CFE_ES_SysLog_vsnprintf(char *Buffer, size_t BufferSize, const char *SpecSt
          *
          * Strip off all trailing whitespace, and add back a single newline
          */
-        while (StringLen > 0 && isspace((int)Buffer[StringLen - 1]))
+        while (StringLen > 0 && isspace((unsigned char)Buffer[StringLen - 1]))
         {
             --StringLen;
         }

Original file line number	Diff line number	Diff line change
`@@ -417,7 +417,7 @@ void CFE_ES_SysLog_vsnprintf(char Buffer, size_t BufferSize, const char SpecSt`
`417`	`417`	`*`
`418`	`418`	`* Strip off all trailing whitespace, and add back a single newline`
`419`	`419`	`*/`
`420`		`- while (StringLen > 0 && isspace((int)Buffer[StringLen - 1]))`
	`420`	`+ while (StringLen > 0 && isspace((unsigned char)Buffer[StringLen - 1]))`
`421`	`421`	`{`
`422`	`422`	`--StringLen;`
`423`	`423`	`}`