diff options
| -rw-r--r-- | editors/sed.c | 49 |
1 files changed, 21 insertions, 28 deletions
diff --git a/editors/sed.c b/editors/sed.c index 87fa002..31fb103 100644 --- a/editors/sed.c +++ b/editors/sed.c @@ -23,9 +23,6 @@ * resulting sed_cmd_t structures are appended to a linked list * (G.sed_cmd_head/G.sed_cmd_tail). * - * add_input_file() adds a char* to the list of input files. We need to - * know all input sources ahead of time to find the last line for the $ match. - * * process_files() does actual sedding, reading data lines from each input FILE* * (which could be stdin) and applying the sed command list (sed_cmd_head) to * each of the resulting lines. @@ -141,8 +138,8 @@ struct globals { smallint exitcode; /* list of input files */ - int input_file_count, current_input_file; - const char **input_file_list; + int current_input_file, last_input_file; + char **input_file_list; FILE *current_fp; regmatch_t regmatch[10]; @@ -942,7 +939,7 @@ static char *get_next_line(char *gets_char, char *last_puts_char, char last_gets /* will be returned if last line in the file * doesn't end with either '\n' or '\0' */ gc = NO_EOL_CHAR; - for (; G.input_file_list[G.current_input_file]; G.current_input_file++) { + for (; G.current_input_file <= G.last_input_file; G.current_input_file++) { FILE *fp = G.current_fp; if (!fp) { const char *path = G.input_file_list[G.current_input_file]; @@ -1414,12 +1411,6 @@ static void add_cmd_block(char *cmdstr) free(sv); } -static void add_input_file(const char *file) -{ - G.input_file_list = xrealloc_vector(G.input_file_list, 2, G.input_file_count); - G.input_file_list[G.input_file_count++] = file; -} - int sed_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int sed_main(int argc UNUSED_PARAM, char **argv) { @@ -1501,36 +1492,38 @@ int sed_main(int argc UNUSED_PARAM, char **argv) /* argv[0..(argc-1)] should be names of file to process. If no * files were specified or '-' was specified, take input from stdin. * Otherwise, we process all the files specified. */ - if (argv[0] == NULL) { + G.input_file_list = argv; + if (!argv[0]) { if (opt & OPT_in_place) bb_error_msg_and_die(bb_msg_requires_arg, "-i"); - add_input_file(bb_msg_standard_input); + argv[0] = (char*)bb_msg_standard_input; + /* G.last_input_file = 0; - already is */ } else { - int i; + goto start; - for (i = 0; argv[i]; i++) { + for (; *argv; argv++) { struct stat statbuf; int nonstdoutfd; sed_cmd_t *sed_cmd; - if (LONE_DASH(argv[i]) && !(opt & OPT_in_place)) { - add_input_file(bb_msg_standard_input); - process_files(); - continue; - } - add_input_file(argv[i]); + G.last_input_file++; + start: if (!(opt & OPT_in_place)) { + if (LONE_DASH(*argv)) { + *argv = (char*)bb_msg_standard_input; + process_files(); + } continue; } /* -i: process each FILE separately: */ - G.outname = xasprintf("%sXXXXXX", argv[i]); + G.outname = xasprintf("%sXXXXXX", *argv); nonstdoutfd = xmkstemp(G.outname); G.nonstdout = xfdopen_for_write(nonstdoutfd); /* Set permissions/owner of output file */ - stat(argv[i], &statbuf); + stat(*argv, &statbuf); /* chmod'ing AFTER chown would preserve suid/sgid bits, * but GNU sed 4.2.1 does not preserve them either */ fchmod(nonstdoutfd, statbuf.st_mode); @@ -1541,12 +1534,12 @@ int sed_main(int argc UNUSED_PARAM, char **argv) G.nonstdout = stdout; if (opt_i) { - char *backupname = xasprintf("%s%s", argv[i], opt_i); - xrename(argv[i], backupname); + char *backupname = xasprintf("%s%s", *argv, opt_i); + xrename(*argv, backupname); free(backupname); } - /* else unlink(argv[i]); - rename below does this */ - xrename(G.outname, argv[i]); //TODO: rollback backup on error? + /* else unlink(*argv); - rename below does this */ + xrename(G.outname, *argv); //TODO: rollback backup on error? free(G.outname); G.outname = NULL; |