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refactor(intro): avoid Coverity warning (#22000)

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refactor(intro): avoid coverity warning

Problem:    Coverity warns about overwriting "mesg" leaking memory.
Solution:   Make it clear that "mesg" will not be overwritten.
This commit is contained in:
zeertzjq
2023-01-26 09:30:26 +08:00
committed by GitHub
parent 116766f243
commit 5ac34cf55d
1 changed files with 15 additions and 25 deletions
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40
src/nvim/version.c
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@@ -2785,13 +2785,6 @@ void maybe_intro_message(void)
/// @param colon true for ":intro"
void intro_message(int colon)
{
int i;
long row;
long blanklines;
int sponsor;
char *p;
char *mesg;
int mesg_size;
static char *(lines[]) = {
N_(NVIM_VERSION_LONG),
"",
@@ -2813,7 +2806,7 @@ void intro_message(int colon)
size_t lines_size = ARRAY_SIZE(lines);
assert(lines_size <= LONG_MAX);
blanklines = Rows - ((long)lines_size - 1L);
long blanklines = Rows - ((long)lines_size - 1L);
// Don't overwrite a statusline. Depends on 'cmdheight'.
if (p_ls > 1) {
@@ -2826,17 +2819,17 @@ void intro_message(int colon)
// Show the sponsor and register message one out of four times, the Uganda
// message two out of four times.
sponsor = (int)time(NULL);
int sponsor = (int)time(NULL);
sponsor = ((sponsor & 2) == 0) - ((sponsor & 4) == 0);
// start displaying the message lines after half of the blank lines
row = blanklines / 2;
long row = blanklines / 2;
if (((row >= 2) && (Columns >= 50)) || colon) {
for (i = 0; i < (int)ARRAY_SIZE(lines); i++) {
p = lines[i];
mesg = NULL;
mesg_size = 0;
for (int i = 0; i < (int)ARRAY_SIZE(lines); i++) {
char *p = lines[i];
char *mesg = NULL;
int mesg_size = 0;
if (strstr(p, "news") != NULL) {
p = _(p);
@@ -2846,18 +2839,15 @@ void intro_message(int colon)
mesg = xmallocz((size_t)mesg_size);
snprintf(mesg, (size_t)mesg_size + 1, p,
STR(NVIM_VERSION_MAJOR), STR(NVIM_VERSION_MINOR));
}
if (sponsor != 0) {
} else if (sponsor != 0) {
if (strstr(p, "children") != NULL) {
mesg = sponsor < 0
? _("Sponsor Vim development!")
: _("Become a registered Vim user!");
}
if (strstr(p, "iccf") != NULL) {
mesg = sponsor < 0
? _("type :help sponsor<Enter> for information ")
: _("type :help register<Enter> for information ");
p = sponsor < 0
? N_("Sponsor Vim development!")
: N_("Become a registered Vim user!");
} else if (strstr(p, "iccf") != NULL) {
p = sponsor < 0
? N_("type :help sponsor<Enter> for information ")
: N_("type :help register<Enter> for information ");
}
}