static void find_wrapper_target(struct wrapper_data *data)
{
FILE *inpipe = NULL;
char str[MAXPATHLEN + 1];
if (find_target_in_path(data))
return;
if (find_target_in_envd(data, 0))
return;
/* Only our wrapper is in PATH, so
get the CC path using gcc-config and
execute the real binary in there... */
inpipe = popen(GCC_CONFIG " --get-bin-path", "r");
if (inpipe == NULL)
wrapper_exit(
"Could not open pipe: %s\n",
wrapper_strerror(errno, data));
if (fgets(str, MAXPATHLEN, inpipe) == 0)
wrapper_exit(
"Could not get compiler binary path: %s\n",
wrapper_strerror(errno, data));
strncpy(data->bin, str, sizeof(data->bin) - 1);
data->bin[strlen(data->bin) - 1] = '/';
strncat(data->bin, data->name, sizeof(data->bin) - 1);
data->bin[MAXPATHLEN] = 0;
pclose(inpipe);
}
static void find_wrapper_target(struct wrapper_data *data)
{
if (find_target_in_path(data))
return;
if (find_target_in_envd(data, 0))
return;
/* Only our wrapper is in PATH, so get the CC path using
* gcc-config and execute the real binary in there ...
*/
FILE *inpipe = popen(GCC_CONFIG " --get-bin-path", "r");
if (inpipe == NULL)
wrapper_errp("could not open pipe");
char str[PATH_MAX + 1];
if (fgets(str, PATH_MAX, inpipe) == 0)
wrapper_errp("could not get compiler binary path");
/* chomp! */
size_t plen = strlen(str);
if (str[plen-1] == '\n')
str[plen-1] = '\0';
data->bin = xmalloc(plen + 1 + strlen(data->name) + 1);
sprintf(data->bin, "%s/%s", str, data->name);
pclose(inpipe);
}
/* find_target_in_envd parses /etc/env.d/05gcc, and tries to
* extract PATH, which is set to the current profile's bin
* directory ...
*/
static int find_target_in_envd(struct wrapper_data *data, int cross_compile)
{
FILE *envfile = NULL;
char *token = NULL, *state;
char str[MAXPATHLEN + 1];
char *strp = str;
char envd_file[MAXPATHLEN + 1];
if (!cross_compile) {
snprintf(envd_file, MAXPATHLEN, "%s", ENVD_BASE);
} else {
char *ctarget, *end = strrchr(data->name, '-');
if (end == NULL)
return 0;
ctarget = strdup(data->name);
ctarget[end - data->name] = '\0';
snprintf(envd_file, MAXPATHLEN, "%s-%s", ENVD_BASE, ctarget);
free(ctarget);
}
envfile = fopen(envd_file, "r");
if (envfile == NULL)
return 0;
while (0 != fgets(strp, MAXPATHLEN, envfile)) {
/* Keep reading ENVD_FILE until we get a line that
* starts with 'PATH='
*/
if (((strp) && (strlen(strp) > strlen("PATH=")) &&
!strncmp("PATH=", strp, strlen("PATH=")))) {
token = strtok_r(strp, "=", &state);
if ((token != NULL) && strlen(token))
/* The second token should be the value of PATH .. */
token = strtok_r(NULL, "=", &state);
else
goto bail;
if ((token != NULL) && strlen(token)) {
strp = token;
/* A bash variable may be unquoted, quoted with " or
* quoted with ', so extract the value without those ..
*/
token = strtok(strp, "\n\"\'");
while (token != NULL) {
if (check_for_target(token, data)) {
fclose(envfile);
return 1;
}
token = strtok(NULL, "\n\"\'");
}
}
}
strp = str;
}
bail:
fclose(envfile);
return (cross_compile ? 0 : find_target_in_envd(data, 1));
}
/* find_target_in_envd parses /etc/env.d/05gcc, and tries to
* extract PATH, which is set to the current profile's bin
* directory ...
*/
static int find_target_in_envd(struct wrapper_data *data, int cross_compile)
{
FILE *envfile = NULL;
char *token = NULL, *state;
char str[MAXPATHLEN + 1];
char *strp = str;
char envd_file[MAXPATHLEN + 1];
if (!cross_compile) {
/* for the sake of speed, we'll keep a symlink around for
* the native compiler. #190260
*/
snprintf(envd_file, sizeof(envd_file)-1, "/etc/env.d/gcc/.NATIVE");
} else {
char *ctarget, *end = strrchr(data->name, '-');
if (end == NULL)
return 0;
ctarget = strdup(data->name);
ctarget[end - data->name] = '\0';
snprintf(envd_file, MAXPATHLEN, "%s-%s", ENVD_BASE, ctarget);
free(ctarget);
}
envfile = fopen(envd_file, "r");
if (envfile == NULL)
return 0;
while (fgets(strp, MAXPATHLEN, envfile) != NULL) {
/* Keep reading ENVD_FILE until we get a line that
* starts with 'GCC_PATH=' ... keep 'PATH=' around
* for older gcc versions.
*/
if (strncmp(strp, "GCC_PATH=", strlen("GCC_PATH=")) &&
strncmp(strp, "PATH=", strlen("PATH=")))
continue;
token = strtok_r(strp, "=", &state);
if ((token != NULL) && strlen(token))
/* The second token should be the value of PATH .. */
token = strtok_r(NULL, "=", &state);
else
goto bail;
if ((token != NULL) && strlen(token)) {
strp = token;
/* A bash variable may be unquoted, quoted with " or
* quoted with ', so extract the value without those ..
*/
token = strtok(strp, "\n\"\'");
while (token != NULL) {
if (check_for_target(token, data)) {
fclose(envfile);
return 1;
}
token = strtok(NULL, "\n\"\'");
}
}
strp = str;
}
bail:
fclose(envfile);
return (cross_compile ? 0 : find_target_in_envd(data, 1));
}