*
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
-/* BB_AUDIT SUSv3 defects - unsupported option -x. */
+/* BB_AUDIT SUSv3 defects - unsupported option -x "match whole line only". */
/* BB_AUDIT GNU defects - always acts as -a. */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/grep.html */
/*
enum {
OPTBIT_l, /* list matched file names only */
OPTBIT_n, /* print line# */
- OPTBIT_q, /* quiet - exit(0) of first match */
+ OPTBIT_q, /* quiet - exit(EXIT_SUCCESS) of first match */
OPTBIT_v, /* invert the match, to select non-matching lines */
OPTBIT_s, /* suppress errors about file open errors */
OPTBIT_c, /* count matches per file (suppresses normal output) */
typedef struct grep_list_data_t {
char *pattern;
regex_t preg;
-#define PATTERN_MEM_A 1
+#define ALLOCATED 1
#define COMPILED 2
int flg_mem_alocated_compiled;
} grep_list_data_t;
enum { print_n_lines_after = 0 };
#endif /* ENABLE_FEATURE_GREP_CONTEXT */
- while ((line = xmalloc_getline(file)) != NULL) {
+ while ((line = xmalloc_fgetline(file)) != NULL) {
llist_t *pattern_ptr = pattern_head;
grep_list_data_t *gl = gl; /* for gcc */
* "exit immediately with zero status
* if any match is found,
* even if errors were detected" */
- exit(0);
+ exit(EXIT_SUCCESS);
}
/* if we're just printing filenames, we stop after the first match */
if (PRINT_FILES_WITH_MATCHES) {
puts(cur_file);
- /* fall thru to "return 1" */
+ /* fall through to "return 1" */
}
/* OPT_L aka PRINT_FILES_WITHOUT_MATCHES: return early */
return 1; /* one match */
free(before_buf[curpos]);
before_buf[curpos] = line;
curpos = (curpos + 1) % lines_before;
- /* avoid free(line) - we took line */
+ /* avoid free(line) - we took the line */
line = NULL;
}
}
fopt = cur->link;
free(cur);
- f = xfopen(ffile, "r");
- while ((line = xmalloc_getline(f)) != NULL) {
+ f = xfopen_stdin(ffile);
+ while ((line = xmalloc_fgetline(f)) != NULL) {
llist_add_to(&pattern_head,
- new_grep_list_data(line, PATTERN_MEM_A));
+ new_grep_list_data(line, ALLOCATED));
}
}
}
-static int file_action_grep(const char *filename, struct stat *statbuf, void* matched, int depth)
+static int file_action_grep(const char *filename,
+ struct stat *statbuf ATTRIBUTE_UNUSED,
+ void* matched,
+ int depth ATTRIBUTE_UNUSED)
{
FILE *file = fopen(filename, "r");
if (file == NULL) {
if (!SUPPRESS_ERR_MSGS)
- bb_simple_perror_msg(cur_file);
+ bb_simple_perror_msg(filename);
open_errors = 1;
return 0;
}
{
FILE *file;
int matched;
- char *mopt;
llist_t *fopt = NULL;
/* do normal option parsing */
#if ENABLE_FEATURE_GREP_CONTEXT
- char *slines_after;
- char *slines_before;
- char *Copt;
+ int Copt;
- opt_complementary = "H-h:e::f::C-AB";
+ /* -H unsets -h; -C unsets -A,-B; -e,-f are lists;
+ * -m,-A,-B,-C have numeric param */
+ opt_complementary = "H-h:C-AB:e::f::m+:A+:B+:C+";
getopt32(argv,
OPTSTR_GREP,
- &pattern_head, &fopt, &mopt,
- &slines_after, &slines_before, &Copt);
+ &pattern_head, &fopt, &max_matches,
+ &lines_after, &lines_before, &Copt);
if (option_mask32 & OPT_C) {
/* -C unsets prev -A and -B, but following -A or -B
may override it */
if (!(option_mask32 & OPT_A)) /* not overridden */
- slines_after = Copt;
+ lines_after = Copt;
if (!(option_mask32 & OPT_B)) /* not overridden */
- slines_before = Copt;
- option_mask32 |= OPT_A|OPT_B; /* for parser */
- }
- if (option_mask32 & OPT_A) {
- lines_after = xatoi_u(slines_after);
- }
- if (option_mask32 & OPT_B) {
- lines_before = xatoi_u(slines_before);
+ lines_before = Copt;
+ //option_mask32 |= OPT_A|OPT_B; /* for parser */
}
/* sanity checks */
if (option_mask32 & (OPT_c|OPT_q|OPT_l|OPT_L)) {
before_buf = xzalloc(lines_before * sizeof(char *));
#else
/* with auto sanity checks */
- opt_complementary = "H-h:e::f::c-n:q-n:l-n";
+ /* -H unsets -h; -c,-q or -l unset -n; -e,-f are lists; -m N */
+ opt_complementary = "H-h:c-n:q-n:l-n:e::f::m+";
getopt32(argv, OPTSTR_GREP,
- &pattern_head, &fopt, &mopt);
+ &pattern_head, &fopt, &max_matches);
#endif
- if (option_mask32 & OPT_m) {
- max_matches = xatoi_u(mopt);
- }
invert_search = ((option_mask32 & OPT_v) != 0); /* 0 | 1 */
if (pattern_head != NULL) {
argv += optind;
argc -= optind;
- /* if we didn't get a pattern from a -e and no command file was specified,
- * argv[optind] should be the pattern. no pattern, no worky */
+ /* if we didn't get a pattern from -e and no command file was specified,
+ * first parameter should be the pattern. no pattern, no worky */
if (pattern_head == NULL) {
char *pattern;
if (*argv == NULL)
argc--;
}
- /* argv[(optind)..(argc-1)] should be names of file to grep through. If
+ /* argv[0..(argc-1)] should be names of file to grep through. If
* there is more than one file to grep, we will print the filenames. */
if (argc > 1)
print_filename = 1;
do {
cur_file = *argv++;
file = stdin;
- if (!cur_file || (*cur_file == '-' && !cur_file[1])) {
+ if (!cur_file || LONE_DASH(cur_file)) {
cur_file = "(standard input)";
} else {
if (option_mask32 & OPT_r) {
grep_list_data_t *gl = (grep_list_data_t *)pattern_head_ptr->data;
pattern_head = pattern_head->link;
- if ((gl->flg_mem_alocated_compiled & PATTERN_MEM_A))
+ if (gl->flg_mem_alocated_compiled & ALLOCATED)
free(gl->pattern);
- if ((gl->flg_mem_alocated_compiled & COMPILED))
+ if (gl->flg_mem_alocated_compiled & COMPILED)
regfree(&(gl->preg));
free(gl);
free(pattern_head_ptr);
projects / platform / upstream / busybox.git / blobdiff