diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/cmd_ide.c | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/common/cmd_ide.c b/common/cmd_ide.c index 2b8b2bc..8644d98 100644 --- a/common/cmd_ide.c +++ b/common/cmd_ide.c @@ -1410,27 +1410,31 @@ WR_OUT: /* * copy src to dest, skipping leading and trailing blanks and null * terminate the string + * "len" is the size of available memory including the terminating '\0' */ -static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len) +static void ident_cpy (unsigned char *dst, unsigned char *src, unsigned int len) { - int start,end; - - start=0; - while (start<len) { - if (src[start]!=' ') - break; - start++; - } - end=len-1; - while (end>start) { - if (src[end]!=' ') - break; - end--; - } - for ( ; start<=end; start++) { - *dest++=src[start]; - } - *dest='\0'; + unsigned char *end, *last; + + last = dst; + end = src + len; + + /* reserve space for '\0' */ + if (len < 2) + goto OUT; + + /* skip leading white space */ + while ((*src) && (src<end) && (*src==' ')) + ++src; + + /* copy string, omitting trailing white space */ + while ((*src) && (src<end)) { + *dst++ = *src; + if (*src++ != ' ') + last = dst; + } +OUT: + *last = '\0'; } /* ------------------------------------------------------------------------- */ |