diff options
Diffstat (limited to 'findutils')
-rw-r--r-- | findutils/find.c | 23 | ||||
-rw-r--r-- | findutils/grep.c | 210 |
2 files changed, 233 insertions, 0 deletions
diff --git a/findutils/find.c b/findutils/find.c new file mode 100644 index 0000000..b3ac1ff --- /dev/null +++ b/findutils/find.c @@ -0,0 +1,23 @@ +#include "internal.h" +#include <errno.h> +#include <stdio.h> + +const char find_usage[] = "find dir [pattern]\n" +"\n" +"\tFind files.\n"; + +extern int +find_main(struct FileInfo * i, int argc, char * * argv) +{ + i->recursive=1; + i->processDirectoriesAfterTheirContents=1; + return monadic_main(i, argc, argv); +} + +extern int +find_fn(const struct FileInfo * i) +{ + printf("%s\n",i->source); + + return(0); +} diff --git a/findutils/grep.c b/findutils/grep.c new file mode 100644 index 0000000..3779e55 --- /dev/null +++ b/findutils/grep.c @@ -0,0 +1,210 @@ +/* + * Copyright (c) 1999 by David I. Bell + * Permission is granted to use, distribute, or modify this source, + * provided that this copyright notice remains intact. + * + * The "grep" command, taken from sash. + * This provides basic file searching. + * + * Permission to distribute this code under the GPL has been granted. + * Modified for busybox by Erik Andersen <andersee@debian.org> <andersen@lineo.com> + */ + +#include "internal.h" +#ifdef BB_GREP + +#include <stdio.h> +#include <dirent.h> +#include <errno.h> +#include <fcntl.h> +#include <signal.h> +#include <time.h> +#include <ctype.h> + + +const char grep_usage[] = +"Search the input file(s) for lines matching the given pattern.\n" +"\tI search stdin if no files are given.\n" +"\tI can't grok full regular expressions.\n" +"usage: grep [in] PATTERN [FILES]...\n" +"\ti=ignore case, n=list line numbers\n"; + + + +static BOOL search + (const char * string, const char * word, BOOL ignoreCase); + + +extern int +grep_main(struct FileInfo * unused, int argc, char ** argv) +{ + FILE * fp; + const char * word; + const char * name; + const char * cp; + BOOL tellName; + BOOL ignoreCase; + BOOL tellLine; + long line; + char buf[BUF_SIZE]; + + ignoreCase = FALSE; + tellLine = FALSE; + + argc--; + argv++; + if (argc < 1) + { + fprintf(stderr, "%s", grep_usage); + return 1; + } + + if (**argv == '-') + { + argc--; + cp = *argv++; + + while (*++cp) switch (*cp) + { + case 'i': + ignoreCase = TRUE; + break; + + case 'n': + tellLine = TRUE; + break; + + default: + fprintf(stderr, "Unknown option\n"); + return 1; + } + } + + word = *argv++; + argc--; + + tellName = (argc > 1); + + while (argc-- > 0) + { + name = *argv++; + + fp = fopen(name, "r"); + + if (fp == NULL) + { + perror(name); + + continue; + } + + line = 0; + + while (fgets(buf, sizeof(buf), fp)) + { + line++; + + cp = &buf[strlen(buf) - 1]; + + if (*cp != '\n') + fprintf(stderr, "%s: Line too long\n", name); + + if (search(buf, word, ignoreCase)) + { + if (tellName) + printf("%s: ", name); + + if (tellLine) + printf("%ld: ", line); + + fputs(buf, stdout); + } + } + + if (ferror(fp)) + perror(name); + + fclose(fp); + } + return 0; +} + + +/* + * See if the specified word is found in the specified string. + */ +static BOOL +search(const char * string, const char * word, BOOL ignoreCase) +{ + const char * cp1; + const char * cp2; + int len; + int lowFirst; + int ch1; + int ch2; + + len = strlen(word); + + if (!ignoreCase) + { + while (TRUE) + { + string = strchr(string, word[0]); + + if (string == NULL) + return FALSE; + + if (memcmp(string, word, len) == 0) + return TRUE; + + string++; + } + } + + /* + * Here if we need to check case independence. + * Do the search by lower casing both strings. + */ + lowFirst = *word; + + if (isupper(lowFirst)) + lowFirst = tolower(lowFirst); + + while (TRUE) + { + while (*string && (*string != lowFirst) && + (!isupper(*string) || (tolower(*string) != lowFirst))) + { + string++; + } + + if (*string == '\0') + return FALSE; + + cp1 = string; + cp2 = word; + + do + { + if (*cp2 == '\0') + return TRUE; + + ch1 = *cp1++; + + if (isupper(ch1)) + ch1 = tolower(ch1); + + ch2 = *cp2++; + + if (isupper(ch2)) + ch2 = tolower(ch2); + + } + while (ch1 == ch2); + + string++; + } +} + +#endif +/* END CODE */ |