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@@ -1,101 +1,101 b'' | |||
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1 | 1 | /* |
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2 | 2 | exewrapper.c - wrapper for calling a python script on Windows |
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3 | 3 | |
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4 | 4 | Copyright 2012 Adrian Buehlmann <adrian@cadifra.com> and others |
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5 | 5 | |
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6 | 6 | This software may be used and distributed according to the terms of the |
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7 | 7 | GNU General Public License version 2 or any later version. |
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8 | 8 | */ |
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9 | 9 | |
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10 | 10 | #include <Python.h> |
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11 | 11 | #include <windows.h> |
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12 | 12 | |
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13 | 13 | |
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14 | 14 | #ifdef __GNUC__ |
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15 | 15 | int strcat_s(char *d, size_t n, const char *s) |
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16 | 16 | { |
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17 | 17 | return !strncat(d, s, n); |
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18 | 18 | } |
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19 | 19 | #endif |
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20 | 20 | |
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21 | 21 | |
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22 | 22 | static char pyscript[MAX_PATH + 10]; |
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23 | 23 | |
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24 | 24 | int main(int argc, char *argv[]) |
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25 | 25 | { |
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26 | 26 | char *dot; |
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27 | 27 | int ret; |
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28 | 28 | int i; |
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29 | 29 | int n; |
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30 | 30 | char **pyargv; |
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31 | 31 | WIN32_FIND_DATA fdata; |
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32 | 32 | HANDLE hfind; |
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33 | 33 | const char *err; |
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34 | 34 | |
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35 | 35 | if (GetModuleFileName(NULL, pyscript, sizeof(pyscript)) == 0) |
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36 | 36 | { |
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37 | 37 | err = "GetModuleFileName failed"; |
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38 | 38 | goto bail; |
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39 | 39 | } |
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40 | 40 | |
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41 | 41 | dot = strrchr(pyscript, '.'); |
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42 | 42 | if (dot == NULL) { |
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43 | 43 | err = "malformed module filename"; |
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44 | 44 | goto bail; |
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45 | 45 | } |
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46 | 46 | *dot = 0; /* cut trailing ".exe" */ |
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47 | 47 | |
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48 | 48 | hfind = FindFirstFile(pyscript, &fdata); |
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49 | 49 | if (hfind != INVALID_HANDLE_VALUE) { |
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50 | 50 | /* pyscript exists, close handle */ |
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51 | 51 | FindClose(hfind); |
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52 | 52 | } else { |
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53 | 53 | /* file pyscript isn't there, take <pyscript>exe.py */ |
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54 | 54 | strcat_s(pyscript, sizeof(pyscript), "exe.py"); |
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55 | 55 | } |
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56 | 56 | |
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57 | 57 | /* |
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58 | 58 | Only add the pyscript to the args, if it's not already there. It may |
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59 |
already be there, if |
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59 | already be there, if the script spawned a child process of itself, in | |
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60 | 60 | the same way as it got called, that is, with the pyscript already in |
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61 | 61 | place. So we optionally accept the pyscript as the first argument |
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62 | 62 | (argv[1]), letting our exe taking the role of the python interpreter. |
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63 | 63 | */ |
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64 | 64 | if (argc >= 2 && strcmp(argv[1], pyscript) == 0) { |
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65 | 65 | /* |
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66 | 66 | pyscript is already in the args, so there is no need to copy |
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67 | 67 | the args and we can directly call the python interpreter with |
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68 | 68 | the original args. |
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69 | 69 | */ |
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70 | 70 | return Py_Main(argc, argv); |
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71 | 71 | } |
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72 | 72 | |
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73 | 73 | /* |
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74 | 74 | Start assembling the args for the Python interpreter call. We put the |
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75 | 75 | name of our exe (argv[0]) in the position where the python.exe |
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76 | 76 | canonically is, and insert the pyscript next. |
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77 | 77 | */ |
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78 | 78 | pyargv = malloc((argc + 5) * sizeof(char*)); |
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79 | 79 | if (pyargv == NULL) { |
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80 | 80 | err = "not enough memory"; |
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81 | 81 | goto bail; |
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82 | 82 | } |
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83 | 83 | n = 0; |
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84 | 84 | pyargv[n++] = argv[0]; |
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85 | 85 | pyargv[n++] = pyscript; |
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86 | 86 | |
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87 | 87 | /* copy remaining args from the command line */ |
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88 | 88 | for (i = 1; i < argc; i++) |
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89 | 89 | pyargv[n++] = argv[i]; |
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90 | 90 | /* argv[argc] is guaranteed to be NULL, so we forward that guarantee */ |
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91 | 91 | pyargv[n] = NULL; |
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92 | 92 | |
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93 | 93 | ret = Py_Main(n, pyargv); /* The Python interpreter call */ |
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94 | 94 | |
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95 | 95 | free(pyargv); |
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96 | 96 | return ret; |
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97 | 97 | |
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98 | 98 | bail: |
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99 | 99 | fprintf(stderr, "abort: %s\n", err); |
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100 | 100 | return 255; |
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101 | 101 | } |
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