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Merge pull request #865 from martinetd/str_truncation

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Fix gcc string truncation warnings
This commit is contained in:
Drew DeVault 2018-04-13 08:31:09 -04:00 committed by GitHub
commit 4dbf7f8b88
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 11 additions and 5 deletions
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5
examples/support/config.c
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@ -202,7 +202,10 @@ struct example_config *parse_args(int argc, char *argv[]) {
char cwd[MAXPATHLEN]; char cwd[MAXPATHLEN];
if (getcwd(cwd, sizeof(cwd)) != NULL) { if (getcwd(cwd, sizeof(cwd)) != NULL) {
char buf[MAXPATHLEN]; char buf[MAXPATHLEN];
snprintf(buf, MAXPATHLEN, "%s/%s", cwd, "wlr-example.ini"); if (snprintf(buf, MAXPATHLEN, "%s/%s", cwd, "wlr-example.ini") >= MAXPATHLEN) {
wlr_log(L_ERROR, "config path too long");
exit(1);
}
config->config_path = strdup(buf); config->config_path = strdup(buf);
} else { } else {
wlr_log(L_ERROR, "could not get cwd"); wlr_log(L_ERROR, "could not get cwd");

2
examples/support/ini.c
View file

@ -64,7 +64,7 @@ static char* find_chars_or_comment(const char* s, const char* chars)
/* Version of strncpy that ensures dest (size bytes) is null-terminated. */ /* Version of strncpy that ensures dest (size bytes) is null-terminated. */
static char* strncpy0(char* dest, const char* src, size_t size) static char* strncpy0(char* dest, const char* src, size_t size)
{ {
strncpy(dest, src, size); strncpy(dest, src, size-1);
dest[size - 1] = '\0'; dest[size - 1] = '\0';
return dest; return dest;
} }

2
include/wlr/types/wlr_output.h
View file

@ -55,7 +55,7 @@ struct wlr_output {
struct wl_global *wl_global; struct wl_global *wl_global;
struct wl_list wl_resources; struct wl_list wl_resources;
char name[16]; char name[24];
char make[48]; char make[48];
char model[16]; char model[16];
char serial[16]; char serial[16];

5
rootston/config.c
View file

@ -418,7 +418,10 @@ struct roots_config *roots_config_create_from_args(int argc, char *argv[]) {
char cwd[MAXPATHLEN]; char cwd[MAXPATHLEN];
if (getcwd(cwd, sizeof(cwd)) != NULL) { if (getcwd(cwd, sizeof(cwd)) != NULL) {
char buf[MAXPATHLEN]; char buf[MAXPATHLEN];
snprintf(buf, MAXPATHLEN, "%s/%s", cwd, "rootston.ini"); if (snprintf(buf, MAXPATHLEN, "%s/%s", cwd, "rootston.ini") >= MAXPATHLEN) {
wlr_log(L_ERROR, "config path too long");
exit(1);
}
config->config_path = strdup(buf); config->config_path = strdup(buf);
} else { } else {
wlr_log(L_ERROR, "could not get cwd"); wlr_log(L_ERROR, "could not get cwd");

2
rootston/ini.c
View file

@ -64,7 +64,7 @@ static char* find_chars_or_comment(const char* s, const char* chars)
/* Version of strncpy that ensures dest (size bytes) is null-terminated. */ /* Version of strncpy that ensures dest (size bytes) is null-terminated. */
static char* strncpy0(char* dest, const char* src, size_t size) static char* strncpy0(char* dest, const char* src, size_t size)
{ {
strncpy(dest, src, size); strncpy(dest, src, size-1);
dest[size - 1] = '\0'; dest[size - 1] = '\0';
return dest; return dest;
} }