mirror of
https://github.com/sheumann/hush.git
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deeed59de0
function old new delta xrealloc_vector_helper - 51 +51 create_list 84 99 +15 getopt_main 690 695 +5 passwd_main 1049 1053 +4 get_cached 85 89 +4 msh_main 1377 1380 +3 add_match 42 41 -1 read_lines 720 718 -2 grave 1068 1066 -2 fill_match_lines 143 141 -2 add_to_dirlist 67 65 -2 add_input_file 49 47 -2 act 252 250 -2 fsck_main 2252 2246 -6 man_main 765 757 -8 bb_internal_initgroups 228 220 -8 cut_main 1052 1041 -11 add_edge_to_node 55 43 -12 dpkg_main 3851 3835 -16 ifupdown_main 2202 2178 -24 sort_main 838 812 -26 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 5/15 up/down: 82/-124) Total: -42 bytes
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Utility routines.
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*
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* Copyright (C) 2005, 2006 Rob Landley <rob@landley.net>
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* Copyright (C) 2004 Erik Andersen <andersen@codepoet.org>
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* Copyright (C) 2001 Matt Krai
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include "libbb.h"
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/* This function reads an entire line from a text file, up to a newline
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* or NUL byte, inclusive. It returns a malloc'ed char * which
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* must be free'ed by the caller. If end is NULL '\n' isn't considered
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* end of line. If end isn't NULL, length of the chunk read is stored in it.
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* Return NULL if EOF/error */
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char* FAST_FUNC bb_get_chunk_from_file(FILE *file, int *end)
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{
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int ch;
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int idx = 0;
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char *linebuf = NULL;
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int linebufsz = 0;
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while ((ch = getc(file)) != EOF) {
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/* grow the line buffer as necessary */
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if (idx >= linebufsz) {
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linebufsz += 80;
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linebuf = xrealloc(linebuf, linebufsz);
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}
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linebuf[idx++] = (char) ch;
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if (!ch || (end && ch == '\n'))
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break;
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}
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if (end)
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*end = idx;
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if (linebuf) {
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// huh, does fgets discard prior data on error like this?
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// I don't think so....
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//if (ferror(file)) {
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// free(linebuf);
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// return NULL;
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//}
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linebuf = xrealloc(linebuf, idx + 1);
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linebuf[idx] = '\0';
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}
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return linebuf;
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}
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/* Get line, including trailing \n if any */
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char* FAST_FUNC xmalloc_fgets(FILE *file)
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{
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int i;
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return bb_get_chunk_from_file(file, &i);
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}
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/* Get line. Remove trailing \n */
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char* FAST_FUNC xmalloc_fgetline(FILE *file)
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{
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int i;
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char *c = bb_get_chunk_from_file(file, &i);
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if (i && c[--i] == '\n')
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c[i] = '\0';
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return c;
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}
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