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authorJason A. Donenfeld <Jason@zx2c4.com>2018-07-04 03:13:31 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2018-07-04 03:13:41 +0200
commit08a2b1b8f812c6d77489467c8ff120979c297bed (patch)
tree68b95757d8f410a82b2f1bb01440cc7cf0e0ed63 /shared.c
parentc4167cbd65acef801e6132ba1182f6ce246ed630 (diff)
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Fix gcc 8.1.1 compiler warnings
CC ../shared.o ../shared.c: In function ‘expand_macro’: ../shared.c:487:3: warning: ‘strncpy’ specified bound depends on the length of the source argument [-Wstringop-overflow=] strncpy(name, value, len); ^~~~~~~~~~~~~~~~~~~~~~~~~ ../shared.c:484:9: note: length computed here len = strlen(value); ^~~~~~~~~~~~~ ../ui-shared.c: In function ‘cgit_repobasename’: ../ui-shared.c:136:2: warning: ‘strncpy’ specified bound 1024 equals destination size [-Wstringop-truncation] strncpy(rvbuf, reponame, sizeof(rvbuf)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CC ../ui-ssdiff.o ../ui-ssdiff.c: In function ‘replace_tabs’: ../ui-ssdiff.c:142:4: warning: ‘strncat’ output truncated copying between 1 and 8 bytes from a string of length 8 [-Wstringop-truncation] strncat(result, spaces, 8 - (strlen(result) % 8)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'shared.c')
-rw-r--r--shared.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/shared.c b/shared.c
index f7b64cf..609bd2a 100644
--- a/shared.c
+++ b/shared.c
@@ -476,15 +476,16 @@ static int is_token_char(char c)
static char *expand_macro(char *name, int maxlength)
{
char *value;
- int len;
+ size_t len;
len = 0;
value = getenv(name);
if (value) {
- len = strlen(value);
+ len = strlen(value) + 1;
if (len > maxlength)
len = maxlength;
- strncpy(name, value, len);
+ strlcpy(name, value, len);
+ --len;
}
return name + len;
}