t/helper/test-pkt-line.c

   1 #include "cache.h"
   2 #include "test-tool.h"
   3 #include "pkt-line.h"
   4
   5 static void pack_line(const char *line)
   6 {
   7         if (!strcmp(line, "0000") || !strcmp(line, "0000\n"))
   8                 packet_flush(1);
   9         else if (!strcmp(line, "0001") || !strcmp(line, "0001\n"))
  10                 packet_delim(1);
  11         else
  12                 packet_write_fmt(1, "%s", line);
  13 }
  14
  15 static void pack(int argc, const char **argv)
  16 {
  17         if (argc) { /* read from argv */
  18                 int i;
  19                 for (i = 0; i < argc; i++)
  20                         pack_line(argv[i]);
  21         } else { /* read from stdin */
  22                 char line[LARGE_PACKET_MAX];
  23                 while (fgets(line, sizeof(line), stdin)) {
  24                         pack_line(line);
  25                 }
  26         }
  27 }
  28
  29 static void unpack(void)
  30 {
  31         struct packet_reader reader;
  32         packet_reader_init(&reader, 0, NULL, 0,
  33                            PACKET_READ_GENTLE_ON_EOF |
  34                            PACKET_READ_CHOMP_NEWLINE);
  35
  36         while (packet_reader_read(&reader) != PACKET_READ_EOF) {
  37                 switch (reader.status) {
  38                 case PACKET_READ_EOF:
  39                         break;
  40                 case PACKET_READ_NORMAL:
  41                         printf("%s\n", reader.line);
  42                         break;
  43                 case PACKET_READ_FLUSH:
  44                         printf("0000\n");
  45                         break;
  46                 case PACKET_READ_DELIM:
  47                         printf("0001\n");
  48                         break;
  49                 case PACKET_READ_RESPONSE_END:
  50                         printf("0002\n");
  51                         break;
  52                 }
  53         }
  54 }
  55
  56 static void unpack_sideband(void)
  57 {
  58         struct packet_reader reader;
  59         packet_reader_init(&reader, 0, NULL, 0,
  60                            PACKET_READ_GENTLE_ON_EOF |
  61                            PACKET_READ_CHOMP_NEWLINE);
  62
  63         while (packet_reader_read(&reader) != PACKET_READ_EOF) {
  64                 int band;
  65                 int fd;
  66
  67                 switch (reader.status) {
  68                 case PACKET_READ_EOF:
  69                         break;
  70                 case PACKET_READ_NORMAL:
  71                         band = reader.line[0] & 0xff;
  72                         if (band < 1 || band > 2)
  73                                 continue; /* skip non-sideband packets */
  74                         fd = band;
  75
  76                         write_or_die(fd, reader.line + 1, reader.pktlen - 1);
  77                         break;
  78                 case PACKET_READ_FLUSH:
  79                         return;
  80                 case PACKET_READ_DELIM:
  81                 case PACKET_READ_RESPONSE_END:
  82                         break;
  83                 }
  84         }
  85 }
  86
  87 static int send_split_sideband(void)
  88 {
  89         const char *part1 = "Hello,";
  90         const char *primary = "\001primary: regular output\n";
  91         const char *part2 = " world!\n";
  92
  93         send_sideband(1, 2, part1, strlen(part1), LARGE_PACKET_MAX);
  94         packet_write(1, primary, strlen(primary));
  95         send_sideband(1, 2, part2, strlen(part2), LARGE_PACKET_MAX);
  96         packet_response_end(1);
  97
  98         return 0;
  99 }
 100
 101 static int receive_sideband(void)
 102 {
 103         return recv_sideband("sideband", 0, 1);
 104 }
 105
 106 int cmd__pkt_line(int argc, const char **argv)
 107 {
 108         if (argc < 2)
 109                 die("too few arguments");
 110
 111         if (!strcmp(argv[1], "pack"))
 112                 pack(argc - 2, argv + 2);
 113         else if (!strcmp(argv[1], "unpack"))
 114                 unpack();
 115         else if (!strcmp(argv[1], "unpack-sideband"))
 116                 unpack_sideband();
 117         else if (!strcmp(argv[1], "send-split-sideband"))
 118                 send_split_sideband();
 119         else if (!strcmp(argv[1], "receive-sideband"))
 120                 receive_sideband();
 121         else
 122                 die("invalid argument '%s'", argv[1]);
 123
 124         return 0;
 125 }