diff options
Diffstat (limited to 'src/tac.c')
| -rw-r--r-- | src/tac.c | 55 |
1 files changed, 28 insertions, 27 deletions
@@ -55,52 +55,53 @@ char *realloc (); char *mktemp (); -RETSIGTYPE cleanup (); -int tac (); -int tac_file (); -int tac_stdin (); -char *xmalloc (); -char *xrealloc (); -void output (); +static RETSIGTYPE cleanup (); +static int tac (); +static int tac_file (); +static int tac_stdin (); +static char *xmalloc (); +static char *xrealloc (); +static void output (); +static void save_stdin (); +static void xwrite (); + void error (); -void save_stdin (); -void xwrite (); /* The name this program was run with. */ char *program_name; /* The string that separates the records of the file. */ -char *separator; +static char *separator; /* If nonzero, print `separator' along with the record preceding it in the file; otherwise with the record following it. */ -int separator_ends_record; +static int separator_ends_record; /* 0 if `separator' is to be matched as a regular expression; otherwise, the length of `separator', used as a sentinel to stop the search. */ -int sentinel_length; +static int sentinel_length; /* The length of a match with `separator'. If `sentinel_length' is 0, `match_length' is computed every time a match succeeds; otherwise, it is simply the length of `separator'. */ -int match_length; +static int match_length; /* The input buffer. */ -char *buffer; +static char *buffer; /* The number of bytes to read at once into `buffer'. */ -unsigned read_size; +static unsigned read_size; /* The size of `buffer'. This is read_size * 2 + sentinel_length + 2. The extra 2 bytes allow `past_end' to have a value beyond the end of `buffer' and `match_start' to run off the front of `buffer'. */ -unsigned buffer_size; +static unsigned buffer_size; /* The compiled regular expression representing `separator'. */ static struct re_pattern_buffer compiled_separator; -struct option longopts[] = +static struct option const longopts[] = { {"before", 0, &separator_ends_record, 0}, {"regex", 0, &sentinel_length, 0}, @@ -113,7 +114,7 @@ main (argc, argv) int argc; char **argv; { - char *error_message; /* Return value from re_compile_pattern. */ + const char *error_message; /* Return value from re_compile_pattern. */ int optc, errors; int have_read_stdin = 0; @@ -213,7 +214,7 @@ char *tempfile; file `tempfile' first if it is a pipe. Return 0 if ok, 1 if an error occurs. */ -int +static int tac_stdin () { /* Previous values of signal handlers. */ @@ -305,7 +306,7 @@ tac_stdin () /* Make a copy of the standard input in `tempfile'. */ -void +static void save_stdin () { static char *template = NULL; @@ -350,7 +351,7 @@ save_stdin () /* Print FILE in reverse. Return 0 if ok, 1 if an error occurs. */ -int +static int tac_file (file) char *file; { @@ -374,7 +375,7 @@ tac_file (file) /* Print in reverse the file open on descriptor FD for reading FILE. Return 0 if ok, 1 if an error occurs. */ -int +static int tac (fd, file) int fd; char *file; @@ -542,7 +543,7 @@ tac (fd, file) /* Print the characters from START to PAST_END - 1. If START is NULL, just flush the buffer. */ -void +static void output (start, past_end) char *start; char *past_end; @@ -574,14 +575,14 @@ output (start, past_end) bytes_in_buffer += bytes_to_add; } -RETSIGTYPE +static RETSIGTYPE cleanup () { unlink (tempfile); exit (1); } -void +static void xwrite (desc, buffer, size) int desc; char *buffer; @@ -596,7 +597,7 @@ xwrite (desc, buffer, size) /* Allocate N bytes of memory dynamically, with error checking. */ -char * +static char * xmalloc (n) unsigned n; { @@ -613,7 +614,7 @@ xmalloc (n) /* Change the size of memory area P to N bytes, with error checking. */ -char * +static char * xrealloc (p, n) char *p; unsigned n; |