| 1 | /*\r |
| 2 | * uxsftp.c: the Unix-specific parts of PSFTP and PSCP.\r |
| 3 | */\r |
| 4 | \r |
| 5 | #include <sys/time.h>\r |
| 6 | #include <sys/types.h>\r |
| 7 | #include <unistd.h>\r |
| 8 | #include <errno.h>\r |
| 9 | \r |
| 10 | #include "putty.h"\r |
| 11 | #include "psftp.h"\r |
| 12 | \r |
| 13 | /*\r |
| 14 | * In PSFTP our selects are synchronous, so these functions are\r |
| 15 | * empty stubs.\r |
| 16 | */\r |
| 17 | int uxsel_input_add(int fd, int rwx) { return 0; }\r |
| 18 | void uxsel_input_remove(int id) { }\r |
| 19 | \r |
| 20 | char *x_get_default(const char *key)\r |
| 21 | {\r |
| 22 | return NULL; /* this is a stub */\r |
| 23 | }\r |
| 24 | \r |
| 25 | void platform_get_x11_auth(char *display, int *protocol,\r |
| 26 | unsigned char *data, int *datalen)\r |
| 27 | {\r |
| 28 | /* Do nothing, therefore no auth. */\r |
| 29 | }\r |
| 30 | \r |
| 31 | /*\r |
| 32 | * Default settings that are specific to PSFTP.\r |
| 33 | */\r |
| 34 | char *platform_default_s(const char *name)\r |
| 35 | {\r |
| 36 | return NULL;\r |
| 37 | }\r |
| 38 | \r |
| 39 | int platform_default_i(const char *name, int def)\r |
| 40 | {\r |
| 41 | return def;\r |
| 42 | }\r |
| 43 | \r |
| 44 | FontSpec platform_default_fontspec(const char *name)\r |
| 45 | {\r |
| 46 | FontSpec ret;\r |
| 47 | *ret.name = '\0';\r |
| 48 | return ret;\r |
| 49 | }\r |
| 50 | \r |
| 51 | Filename platform_default_filename(const char *name)\r |
| 52 | {\r |
| 53 | Filename ret;\r |
| 54 | if (!strcmp(name, "LogFileName"))\r |
| 55 | strcpy(ret.path, "putty.log");\r |
| 56 | else\r |
| 57 | *ret.path = '\0';\r |
| 58 | return ret;\r |
| 59 | }\r |
| 60 | \r |
| 61 | /*\r |
| 62 | * Stubs for the GUI feedback mechanism in Windows PSCP.\r |
| 63 | */\r |
| 64 | void gui_update_stats(char *name, unsigned long size,\r |
| 65 | int percentage, unsigned long elapsed,\r |
| 66 | unsigned long done, unsigned long eta,\r |
| 67 | unsigned long ratebs) {}\r |
| 68 | void gui_send_errcount(int list, int errs) {}\r |
| 69 | void gui_send_char(int is_stderr, int c) {}\r |
| 70 | void gui_enable(char *arg) {}\r |
| 71 | \r |
| 72 | \r |
| 73 | /*\r |
| 74 | * Set local current directory. Returns NULL on success, or else an\r |
| 75 | * error message which must be freed after printing.\r |
| 76 | */\r |
| 77 | char *psftp_lcd(char *dir)\r |
| 78 | {\r |
| 79 | if (chdir(dir) < 0)\r |
| 80 | return dupprintf("%s: chdir: %s", dir, strerror(errno));\r |
| 81 | else\r |
| 82 | return NULL;\r |
| 83 | }\r |
| 84 | \r |
| 85 | /*\r |
| 86 | * Get local current directory. Returns a string which must be\r |
| 87 | * freed.\r |
| 88 | */\r |
| 89 | char *psftp_getcwd(void)\r |
| 90 | {\r |
| 91 | char *buffer, *ret;\r |
| 92 | int size = 256;\r |
| 93 | \r |
| 94 | buffer = snewn(size, char);\r |
| 95 | while (1) {\r |
| 96 | ret = getcwd(buffer, size);\r |
| 97 | if (ret != NULL)\r |
| 98 | return ret;\r |
| 99 | if (errno != ERANGE) {\r |
| 100 | sfree(buffer);\r |
| 101 | return dupprintf("[cwd unavailable: %s]", strerror(errno));\r |
| 102 | }\r |
| 103 | /*\r |
| 104 | * Otherwise, ERANGE was returned, meaning the buffer\r |
| 105 | * wasn't big enough.\r |
| 106 | */\r |
| 107 | size = size * 3 / 2;\r |
| 108 | buffer = sresize(buffer, size, char);\r |
| 109 | }\r |
| 110 | }\r |
| 111 | \r |
| 112 | /*\r |
| 113 | * Wait for some network data and process it.\r |
| 114 | */\r |
| 115 | int ssh_sftp_loop_iteration(void)\r |
| 116 | {\r |
| 117 | fd_set rset, wset, xset;\r |
| 118 | int i, fdcount, fdsize, *fdlist;\r |
| 119 | int fd, fdstate, rwx, ret, maxfd;\r |
| 120 | \r |
| 121 | fdlist = NULL;\r |
| 122 | fdcount = fdsize = 0;\r |
| 123 | \r |
| 124 | /* Count the currently active fds. */\r |
| 125 | i = 0;\r |
| 126 | for (fd = first_fd(&fdstate, &rwx); fd >= 0;\r |
| 127 | fd = next_fd(&fdstate, &rwx)) i++;\r |
| 128 | \r |
| 129 | if (i < 1)\r |
| 130 | return -1; /* doom */\r |
| 131 | \r |
| 132 | /* Expand the fdlist buffer if necessary. */\r |
| 133 | if (i > fdsize) {\r |
| 134 | fdsize = i + 16;\r |
| 135 | fdlist = sresize(fdlist, fdsize, int);\r |
| 136 | }\r |
| 137 | \r |
| 138 | FD_ZERO(&rset);\r |
| 139 | FD_ZERO(&wset);\r |
| 140 | FD_ZERO(&xset);\r |
| 141 | maxfd = 0;\r |
| 142 | \r |
| 143 | /*\r |
| 144 | * Add all currently open fds to the select sets, and store\r |
| 145 | * them in fdlist as well.\r |
| 146 | */\r |
| 147 | fdcount = 0;\r |
| 148 | for (fd = first_fd(&fdstate, &rwx); fd >= 0;\r |
| 149 | fd = next_fd(&fdstate, &rwx)) {\r |
| 150 | fdlist[fdcount++] = fd;\r |
| 151 | if (rwx & 1)\r |
| 152 | FD_SET_MAX(fd, maxfd, rset);\r |
| 153 | if (rwx & 2)\r |
| 154 | FD_SET_MAX(fd, maxfd, wset);\r |
| 155 | if (rwx & 4)\r |
| 156 | FD_SET_MAX(fd, maxfd, xset);\r |
| 157 | }\r |
| 158 | \r |
| 159 | do {\r |
| 160 | ret = select(maxfd, &rset, &wset, &xset, NULL);\r |
| 161 | } while (ret < 0 && errno == EINTR);\r |
| 162 | \r |
| 163 | if (ret < 0) {\r |
| 164 | perror("select");\r |
| 165 | exit(1);\r |
| 166 | }\r |
| 167 | \r |
| 168 | for (i = 0; i < fdcount; i++) {\r |
| 169 | fd = fdlist[i];\r |
| 170 | /*\r |
| 171 | * We must process exceptional notifications before\r |
| 172 | * ordinary readability ones, or we may go straight\r |
| 173 | * past the urgent marker.\r |
| 174 | */\r |
| 175 | if (FD_ISSET(fd, &xset))\r |
| 176 | select_result(fd, 4);\r |
| 177 | if (FD_ISSET(fd, &rset))\r |
| 178 | select_result(fd, 1);\r |
| 179 | if (FD_ISSET(fd, &wset))\r |
| 180 | select_result(fd, 2);\r |
| 181 | }\r |
| 182 | \r |
| 183 | sfree(fdlist);\r |
| 184 | \r |
| 185 | return 0;\r |
| 186 | }\r |
| 187 | \r |
| 188 | /*\r |
| 189 | * Main program: do platform-specific initialisation and then call\r |
| 190 | * psftp_main().\r |
| 191 | */\r |
| 192 | int main(int argc, char *argv[])\r |
| 193 | {\r |
| 194 | uxsel_init();\r |
| 195 | return psftp_main(argc, argv);\r |
| 196 | }\r |