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Proper strncpy null termination

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dec05eba
2024-05-09 16:17:38 +02:00
parent 447b5d0f0b
commit f1eb893493
3 changed files with 15 additions and 6 deletions
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13
src/utils.c
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@@ -414,9 +414,18 @@ static bool try_card_has_valid_plane(const char *card_path) {
return false;
}
static void string_copy(char *dst, const char *src, int len) {
int src_len = strlen(src);
int min_len = src_len;
if(len - 1 < min_len)
min_len = len - 1;
memcpy(dst, src, min_len);
dst[min_len] = '\0';
}
bool gsr_get_valid_card_path(gsr_egl *egl, char *output) {
if(egl->dri_card_path) {
strncpy(output, egl->dri_card_path, 127);
string_copy(output, egl->dri_card_path, 127);
return try_card_has_valid_plane(output);
}
@@ -435,7 +444,7 @@ bool gsr_card_path_get_render_path(const char *card_path, char *render_path) {
char *render_path_tmp = drmGetRenderDeviceNameFromFd(fd);
if(render_path_tmp) {
strncpy(render_path, render_path_tmp, 127);
string_copy(render_path, render_path_tmp, 127);
free(render_path_tmp);
close(fd);
return true;