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Merge pull request #2716 from sghctoma/fix-swaybar-freebsd

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Replace getdelim to make swaybar work on FreeBSD
This commit is contained in:
Drew DeVault 2018-09-28 04:22:18 -05:00 committed by GitHub
parent 5104bd2c59 315b2bf100
commit 813de9f7ac
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 27 additions and 13 deletions
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40
swaybar/status_line.c
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@ -1,5 +1,6 @@
#define _POSIX_C_SOURCE 200809L
#include <fcntl.h>
#include <sys/ioctl.h>
#include <json-c/json.h>
#include <stdlib.h>
#include <string.h>
@ -34,18 +35,35 @@ bool status_handle_readable(struct status_line *status) {
switch (status->protocol) {
case PROTOCOL_UNDEF:
errno = 0;
read_bytes = getline(&status->buffer,
&status->buffer_size, status->read);
if (errno == EAGAIN) {
clearerr(status->read);
} else if (errno) {
int available_bytes;
if (ioctl(status->read_fd, FIONREAD, &available_bytes) == -1) {
wlr_log(WLR_ERROR, "Unable to read status command output size");
status_error(status, "[error reading from status command]");
return true;
}
if ((size_t)available_bytes + 1 > status->buffer_size) {
// need room for leading '\0' too
status->buffer_size = available_bytes + 1;
status->buffer = realloc(status->buffer, status->buffer_size);
}
if (status->buffer == NULL) {
wlr_log_errno(WLR_ERROR, "Unable to read status line");
status_error(status, "[error reading from status command]");
return true;
}
read_bytes = read(status->read_fd, status->buffer, available_bytes);
if (read_bytes != available_bytes) {
status_error(status, "[error reading from status command]");
return true;
}
status->buffer[available_bytes] = 0;
// the header must be sent completely the first time round
char *newline = strchr(status->buffer, '\n');
json_object *header, *version;
if (status->buffer[read_bytes - 1] == '\n'
if (newline != NULL
&& (header = json_tokener_parse(status->buffer))
&& json_object_object_get_ex(header, "version", &version)
&& json_object_get_int(version) == 1) {
@ -67,13 +85,9 @@ bool status_handle_readable(struct status_line *status) {
wl_list_init(&status->blocks);
status->tokener = json_tokener_new();
read_bytes = getdelim(&status->buffer, &status->buffer_size, EOF, status->read);
if (read_bytes > 0) {
status->buffer_index = read_bytes;
return i3bar_handle_readable(status);
} else {
return false;
}
status->buffer_index = strlen(newline + 1);
memmove(status->buffer, newline + 1, status->buffer_index + 1);
return i3bar_handle_readable(status);
}
wlr_log(WLR_DEBUG, "Using text protocol.");