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@@ -27,7 +27,7 @@ |
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"\t$@ returns target-file (abc.x.txt)\n" \ |
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"\t$* returns target-file without suffix (^-> abc.x)\n" |
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static char * g_filename, * g_short; |
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char * g_filename, * g_short; |
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static char * |
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map(const char * fn, size_t * len) |
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@@ -65,60 +65,42 @@ find(const char * x, const char * buf, const size_t max, const size_t min) |
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} |
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static char * |
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find_region(char * addr, size_t len) |
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find_region(const char * fn, const char * start, const char * stop) |
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{ |
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char * buf = NULL; |
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const char * start, * stop; |
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if ((start = find(START, addr, len, strlen(START)))) |
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size_t len = 0; |
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char * buf = NULL, * addr; |
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const char * pb, * pe; |
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addr = map(fn, &len); |
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if (addr != MAP_FAILED) |
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{ |
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start += strlen(START); |
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stop = find(STOP, start, len - (start - addr), strlen(STOP)); |
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if (!stop) |
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if ((pb = find(start, addr, len, strlen(start)))) |
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{ |
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stop = start; |
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while (*stop && *stop != '\n') |
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pb += strlen(start); |
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pe = find(stop, pb, len - (pb - addr), strlen(stop)); |
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if (!pe) |
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{ |
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if (stop[0] == '\\' && stop[1] == '\n') |
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{ stop += 2; } |
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++stop; |
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pe = pb; |
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while (*pe && *pe != '\n') |
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{ |
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if (pe[0] == '\\' && pe[1] == '\n') |
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{ pe += 2; } |
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++pe; |
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} |
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} |
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if (pe) |
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{ buf = strndup(pb, (pe - addr) - (pb - addr)); } |
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} |
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if (stop) |
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{ buf = strndup(start, (stop - addr) - (start - addr)); } |
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munmap(addr, len); |
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} |
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return buf; |
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} |
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static void |
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swap(char * a, char * b) |
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{ |
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*a ^= *b; |
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*b ^= *a; |
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*a ^= *b; |
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} |
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static int |
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root(char * root) |
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{ |
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int ret; |
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char x[1] = "\0"; |
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size_t len = strlen(root); |
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while (len && root[len] != '/') |
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{ --len; } |
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if (!len) |
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{ return 0; } |
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swap(root + len, x); |
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ret = chdir(root); |
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swap(root + len, x); |
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return ret; |
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} |
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static char * |
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insert(const char * new, char * str, size_t offset, size_t shift) |
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{ |
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size_t len, max; |
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if (!new) { return str; } |
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if (!str) { return NULL; } |
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if (!new || !str) { return NULL; } |
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len = strlen(new); |
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max = (strlen(str) + 1 - offset - shift); |
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memmove(str + offset + len, str + offset + shift, max); |
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@@ -202,29 +184,38 @@ expand(char * buf) |
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return buf; |
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} |
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static void |
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swap(char * a, char * b) |
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{ |
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*a ^= *b; |
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*b ^= *a; |
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*a ^= *b; |
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} |
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static int |
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run(const char * buf) |
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root(char * root) |
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{ |
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fputs("Output:\n", stderr); |
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root(g_filename); |
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return system(buf); |
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int ret; |
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char x[1] = "\0"; |
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size_t len = strlen(root); |
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while (len && root[len] != '/') |
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{ --len; } |
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if (!len) |
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{ return 0; } |
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swap(root + len, x); |
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ret = chdir(root); |
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swap(root + len, x); |
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return ret; |
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} |
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int |
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main(int argc, char ** argv) |
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{ |
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int ret = 0; |
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char * buf = NULL, * addr; |
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size_t len; |
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char * buf; |
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setlocale(LC_ALL, "C"); |
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if (argc < 2) |
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{ goto help; } |
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if (argc < 2) { goto help; } |
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g_filename = argv[1]; |
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if ((addr = map(g_filename, &len))) |
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{ |
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buf = find_region(addr, len); |
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munmap(addr, len); |
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} |
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buf = find_region(g_filename, START, STOP); |
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if (!buf) |
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{ |
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if (errno) |
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@@ -234,11 +225,14 @@ main(int argc, char ** argv) |
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return 1; |
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} |
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buf = expand(buf); |
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fprintf(stderr, "Exec: %s\n", buf ? buf + 1 : buf); |
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if ((ret = ret ? 0 : run(buf))) |
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{ fprintf(stderr, "Result: %d\n", ret); } |
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root(argv[0]); |
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fprintf(stderr, "Exec: %s\n", buf); |
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if (!buf) { return 1; } |
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fputs("Output:\n", stderr); |
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fflush(stderr); |
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system(buf); |
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free(buf); |
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return ret; |
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return 0; |
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help: |
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fprintf(stderr, "%s: %s", argv[0], HELP DESC); |
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return 1; |
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