int
onlp_file_vwrite(uint8_t* data, int len, const char* fmt, va_list vargs)
{
int fd;
char fname[PATH_MAX];
int rv;
int wlen;
ONLPLIB_VSNPRINTF(fname, sizeof(fname)-1, fmt, vargs);
if ((fd = open(fname, O_WRONLY)) == -1) {
rv = ONLP_STATUS_E_MISSING;
}
else {
if ((wlen = write(fd, data, len)) != len) {
AIM_LOG_ERROR("Failed to write output file '%s'", fname);
rv = ONLP_STATUS_E_INTERNAL;
}
else {
rv = ONLP_STATUS_OK;
}
close(fd);
}
return rv;
}
int
onlp_file_vopen(int flags, int log, const char* fmt, va_list vargs)
{
int rv;
char fname[PATH_MAX];
ONLPLIB_VSNPRINTF(fname, sizeof(fname)-1, fmt, vargs);
rv = open(fname, flags);
if(rv < 0 && log) {
AIM_LOG_ERROR("failed to open file %s (0x%x): %{errno}", fname, flags, errno);
}
return rv;
}
/**
* @brief Open a file or domain socket.
* @param dst Receives the full filename (for logging purposes).
* @param flags The open flags.
* @param fmt Format specifier.
* @param vargs Format specifier arguments.
*/
static int
vopen__(char** dst, int flags, const char* fmt, va_list vargs)
{
int fd;
struct stat sb;
char fname[PATH_MAX];
char* asterisk;
ONLPLIB_VSNPRINTF(fname, sizeof(fname)-1, fmt, vargs);
/**
* An asterisk in the filename separates a search root
* directory from a filename.
*/
if( (asterisk = strchr(fname, '*')) ) {
char* root = fname;
char* rpath = NULL;
*asterisk = 0;
if(onlp_file_find(root, asterisk+1, &rpath) < 0) {
return ONLP_STATUS_E_MISSING;
}
strcpy(fname, rpath);
aim_free(rpath);
}
if(dst) {
*dst = aim_strdup(fname);
}
if(stat(fname, &sb) == -1) {
return ONLP_STATUS_E_MISSING;
}
if(S_ISSOCK(sb.st_mode)) {
fd = ds_connect__(fname);
}
else {
fd = open(fname, flags);
}
return (fd > 0) ? fd : ONLP_STATUS_E_MISSING;
}
int
onlp_file_vread(uint8_t* data, int max, int* len, const char* fmt, va_list vargs)
{
int fd;
char fname[PATH_MAX];
int rv;
ONLPLIB_VSNPRINTF(fname, sizeof(fname)-1, fmt, vargs);
if ((fd = open(fname, O_RDONLY)) == -1) {
rv = ONLP_STATUS_E_MISSING;
}
else {
if ((*len = read(fd, data, max)) <= 0) {
AIM_LOG_ERROR("Failed to read input file '%s'", fname);
rv = ONLP_STATUS_E_INTERNAL;
}
else {
rv = ONLP_STATUS_OK;
}
close(fd);
}
return rv;
}