*
* (C) 2006 Jac Goudsmit added -o option
*/
-
-//applet:IF_GREP(APPLET(grep, BB_DIR_BIN, BB_SUID_DROP))
-//applet:IF_FEATURE_GREP_EGREP_ALIAS(APPLET_ODDNAME(egrep, grep, BB_DIR_BIN, BB_SUID_DROP, egrep))
-//applet:IF_FEATURE_GREP_FGREP_ALIAS(APPLET_ODDNAME(fgrep, grep, BB_DIR_BIN, BB_SUID_DROP, fgrep))
-
-//kbuild:lib-$(CONFIG_GREP) += grep.o
-
//config:config GREP
-//config: bool "grep"
+//config: bool "grep (8.5 kb)"
//config: default y
//config: help
-//config: grep is used to search files for a specified pattern.
+//config: grep is used to search files for a specified pattern.
//config:
-//config:config FEATURE_GREP_EGREP_ALIAS
-//config: bool "Enable extended regular expressions (egrep & grep -E)"
+//config:config EGREP
+//config: bool "egrep (7.6 kb)"
//config: default y
-//config: depends on GREP
//config: help
-//config: Enabled support for extended regular expressions. Extended
-//config: regular expressions allow for alternation (foo|bar), grouping,
-//config: and various repetition operators.
+//config: Alias to "grep -E".
//config:
-//config:config FEATURE_GREP_FGREP_ALIAS
-//config: bool "Alias fgrep to grep -F"
+//config:config FGREP
+//config: bool "fgrep (7.6 kb)"
//config: default y
-//config: depends on GREP
//config: help
-//config: fgrep sees the search pattern as a normal string rather than
-//config: regular expressions.
-//config: grep -F always works, this just creates the fgrep alias.
+//config: Alias to "grep -F".
//config:
//config:config FEATURE_GREP_CONTEXT
//config: bool "Enable before and after context flags (-A, -B and -C)"
//config: default y
-//config: depends on GREP
+//config: depends on GREP || EGREP || FGREP
//config: help
-//config: Print the specified number of leading (-B) and/or trailing (-A)
-//config: context surrounding our matching lines.
-//config: Print the specified number of context lines (-C).
+//config: Print the specified number of leading (-B) and/or trailing (-A)
+//config: context surrounding our matching lines.
+//config: Print the specified number of context lines (-C).
+
+//applet:IF_GREP(APPLET(grep, BB_DIR_BIN, BB_SUID_DROP))
+// APPLET_ODDNAME:name main location suid_type help
+//applet:IF_EGREP(APPLET_ODDNAME(egrep, grep, BB_DIR_BIN, BB_SUID_DROP, egrep))
+//applet:IF_FGREP(APPLET_ODDNAME(fgrep, grep, BB_DIR_BIN, BB_SUID_DROP, fgrep))
+
+//kbuild:lib-$(CONFIG_GREP) += grep.o
+//kbuild:lib-$(CONFIG_EGREP) += grep.o
+//kbuild:lib-$(CONFIG_FGREP) += grep.o
#include "libbb.h"
+#include "common_bufsiz.h"
#include "xregex.h"
/* options */
//usage:#define grep_trivial_usage
-//usage: "[-HhnlLoqvsriw"
-//usage: "F"
-//usage: IF_FEATURE_GREP_EGREP_ALIAS("E")
+//usage: "[-HhnlLoqvsriwFE"
//usage: IF_EXTRA_COMPAT("z")
//usage: "] [-m N] "
//usage: IF_FEATURE_GREP_CONTEXT("[-A/B/C N] ")
//usage: "\n -w Match whole words only"
//usage: "\n -x Match whole lines only"
//usage: "\n -F PATTERN is a literal (not regexp)"
-//usage: IF_FEATURE_GREP_EGREP_ALIAS(
//usage: "\n -E PATTERN is an extended regexp"
-//usage: )
//usage: IF_EXTRA_COMPAT(
//usage: "\n -z Input is NUL terminated"
//usage: )
//usage:#define fgrep_trivial_usage NOUSAGE_STR
//usage:#define fgrep_full_usage ""
+/* -e,-f are lists; -m,-A,-B,-C have numeric param */
#define OPTSTR_GREP \
- "lnqvscFiHhe:f:Lorm:wx" \
- IF_FEATURE_GREP_CONTEXT("A:B:C:") \
- IF_FEATURE_GREP_EGREP_ALIAS("E") \
+ "lnqvscFiHhe:*f:*Lorm:+wx" \
+ IF_FEATURE_GREP_CONTEXT("A:+B:+C:+") \
+ "E" \
IF_EXTRA_COMPAT("z") \
"aI"
/* ignored: -a "assume all files to be text" */
IF_FEATURE_GREP_CONTEXT( OPTBIT_A ,) /* -A NUM: after-match context */
IF_FEATURE_GREP_CONTEXT( OPTBIT_B ,) /* -B NUM: before-match context */
IF_FEATURE_GREP_CONTEXT( OPTBIT_C ,) /* -C NUM: -A and -B combined */
- IF_FEATURE_GREP_EGREP_ALIAS(OPTBIT_E ,) /* extended regexp */
+ OPTBIT_E, /* extended regexp */
IF_EXTRA_COMPAT( OPTBIT_z ,) /* input is NUL terminated */
OPT_l = 1 << OPTBIT_l,
OPT_n = 1 << OPTBIT_n,
OPT_A = IF_FEATURE_GREP_CONTEXT( (1 << OPTBIT_A)) + 0,
OPT_B = IF_FEATURE_GREP_CONTEXT( (1 << OPTBIT_B)) + 0,
OPT_C = IF_FEATURE_GREP_CONTEXT( (1 << OPTBIT_C)) + 0,
- OPT_E = IF_FEATURE_GREP_EGREP_ALIAS((1 << OPTBIT_E)) + 0,
+ OPT_E = 1 << OPTBIT_E,
OPT_z = IF_EXTRA_COMPAT( (1 << OPTBIT_z)) + 0,
};
llist_t *pattern_head; /* growable list of patterns to match */
const char *cur_file; /* the current file we are reading */
} FIX_ALIASING;
-#define G (*(struct globals*)&bb_common_bufsiz1)
+#define G (*(struct globals*)bb_common_bufsiz1)
#define INIT_G() do { \
- struct G_sizecheck { \
- char G_sizecheck[sizeof(G) > COMMON_BUFSIZE ? -1 : 1]; \
- }; \
+ setup_common_bufsiz(); \
+ BUILD_BUG_ON(sizeof(G) > COMMON_BUFSIZE); \
} while (0)
#define max_matches (G.max_matches )
#if !ENABLE_EXTRA_COMPAT
#endif
#define ALLOCATED 1
#define COMPILED 2
- int flg_mem_alocated_compiled;
+ int flg_mem_allocated_compiled;
} grep_list_data_t;
#if !ENABLE_EXTRA_COMPAT
goto opt_f_not_found;
} else
if (option_mask32 & OPT_w) {
- char c = (match != str) ? match[-1] : ' ';
+ char c = (match != line) ? match[-1] : ' ';
if (!isalnum(c) && c != '_') {
c = match[strlen(gl->pattern)];
if (!c || (!isalnum(c) && c != '_'))
#endif
char *match_at;
- if (!(gl->flg_mem_alocated_compiled & COMPILED)) {
- gl->flg_mem_alocated_compiled |= COMPILED;
+ if (!(gl->flg_mem_allocated_compiled & COMPILED)) {
+ gl->flg_mem_allocated_compiled |= COMPILED;
#if !ENABLE_EXTRA_COMPAT
xregcomp(&gl->compiled_regex, gl->pattern, reflags);
#else
if (option_mask32 & OPT_o) {
if (FGREP_FLAG) {
/* -Fo just prints the pattern
- * (unless -v: -Fov doesnt print anything at all) */
+ * (unless -v: -Fov doesn't print anything at all) */
if (found)
print_line(gl->pattern, strlen(gl->pattern), linenum, ':');
} else while (1) {
grep_list_data_t *gl = xzalloc(sizeof(*gl));
gl->pattern = pattern;
#if ENABLE_FEATURE_CLEAN_UP
- gl->flg_mem_alocated_compiled = flg_used_mem;
+ gl->flg_mem_allocated_compiled = flg_used_mem;
#else
- /*gl->flg_mem_alocated_compiled = 0;*/
+ /*gl->flg_mem_allocated_compiled = 0;*/
#endif
return (char *)gl;
}
}
static int FAST_FUNC file_action_grep(const char *filename,
- struct stat *statbuf UNUSED_PARAM,
+ struct stat *statbuf,
void* matched,
int depth UNUSED_PARAM)
{
- FILE *file = fopen_for_read(filename);
+ FILE *file;
+
+ /* If we are given a link to a directory, we should bail out now, rather
+ * than trying to open the "file" and hoping getline gives us nothing,
+ * since that is not portable across operating systems (FreeBSD for
+ * example will return the raw directory contents). */
+ if (S_ISLNK(statbuf->st_mode)) {
+ struct stat sb;
+ if (stat(filename, &sb) != 0) {
+ if (!SUPPRESS_ERR_MSGS)
+ bb_simple_perror_msg(filename);
+ return 0;
+ }
+ if (S_ISDIR(sb.st_mode))
+ return 1;
+ }
+
+ file = fopen_for_read(filename);
if (file == NULL) {
if (!SUPPRESS_ERR_MSGS)
bb_simple_perror_msg(filename);
FILE *file;
int matched;
llist_t *fopt = NULL;
-
- /* do normal option parsing */
#if ENABLE_FEATURE_GREP_CONTEXT
int Copt, opts;
+#endif
+ INIT_G();
+
+ /* For grep, exitcode of 1 is "not found". Other errors are 2: */
+ xfunc_error_retval = 2;
- /* -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+";
- opts = getopt32(argv,
- OPTSTR_GREP,
+ /* do normal option parsing */
+#if ENABLE_FEATURE_GREP_CONTEXT
+ /* -H unsets -h; -C unsets -A,-B */
+ opts = getopt32long(argv, "^"
+ OPTSTR_GREP
+ "\0"
+ "H-h:C-AB",
+ "color\0" Optional_argument "\xff",
&pattern_head, &fopt, &max_matches,
- &lines_after, &lines_before, &Copt);
+ &lines_after, &lines_before, &Copt
+ , NULL
+ );
if (opts & OPT_C) {
/* -C unsets prev -A and -B, but following -A or -B
}
#else
/* with auto sanity checks */
- /* -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,
+ getopt32(argv, "^" OPTSTR_GREP "\0" "H-h:c-n:q-n:l-n:", // why trailing ":"?
&pattern_head, &fopt, &max_matches);
#endif
invert_search = ((option_mask32 & OPT_v) != 0); /* 0 | 1 */
}
}
- if (ENABLE_FEATURE_GREP_FGREP_ALIAS && applet_name[0] == 'f')
+ if (ENABLE_FGREP && applet_name[0] == 'f')
option_mask32 |= OPT_F;
#if !ENABLE_EXTRA_COMPAT
reflags = REG_NOSUB;
#endif
- if (ENABLE_FEATURE_GREP_EGREP_ALIAS
- && (applet_name[0] == 'e' || (option_mask32 & OPT_E))
+ if ((ENABLE_EGREP && applet_name[0] == 'e')
+ || (option_mask32 & OPT_E)
) {
reflags |= REG_EXTENDED;
}
grep_done: ;
} while (*argv && *++argv);
- /* destroy all the elments in the pattern list */
+ /* destroy all the elements in the pattern list */
if (ENABLE_FEATURE_CLEAN_UP) {
while (pattern_head) {
llist_t *pattern_head_ptr = pattern_head;
grep_list_data_t *gl = (grep_list_data_t *)pattern_head_ptr->data;
pattern_head = pattern_head->link;
- if (gl->flg_mem_alocated_compiled & ALLOCATED)
+ if (gl->flg_mem_allocated_compiled & ALLOCATED)
free(gl->pattern);
- if (gl->flg_mem_alocated_compiled & COMPILED)
+ if (gl->flg_mem_allocated_compiled & COMPILED)
regfree(&gl->compiled_regex);
free(gl);
free(pattern_head_ptr);
projects / oweals / busybox.git / blobdiff