mirror of
https://github.com/reactos/ccache.git
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113 lines
2.3 KiB
C
113 lines
2.3 KiB
C
/*
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Copyright (C) Andrew Tridgell 2002
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "ccache.h"
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static FILE *logfile;
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/* log a message to the CCACHE_LOGFILE location */
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void cc_log(const char *format, ...)
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{
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int ret;
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va_list ap;
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extern char *cache_logfile;
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if (!cache_logfile) return;
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if (!logfile) logfile = fopen(cache_logfile, "a");
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if (!logfile) return;
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va_start(ap, format);
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ret = vfprintf(logfile, format, ap);
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va_end(ap);
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fflush(logfile);
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}
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/* something went badly wrong! */
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void fatal(const char *msg)
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{
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cc_log("FATAL: %s\n", msg);
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exit(1);
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}
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/* copy all data from one file descriptor to another */
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void copy_fd(int fd_in, int fd_out)
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{
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char buf[1024];
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int n;
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while ((n = read(fd_in, buf, sizeof(buf))) > 0) {
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if (write(fd_out, buf, n) != n) {
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fatal("Failed to copy fd");
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}
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}
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}
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/* make sure a directory exists */
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int create_dir(const char *dir)
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{
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struct stat st;
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if (stat(dir, &st) == 0) {
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if (S_ISDIR(st.st_mode)) {
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return 0;
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}
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errno = ENOTDIR;
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return 1;
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}
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if (mkdir(dir, 0777) != 0 && errno != EEXIST) {
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return 1;
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}
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return 0;
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}
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/*
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this is like asprintf() but dies if the malloc fails
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note that we use vsnprintf in a rather poor way to make this more portable
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*/
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void x_asprintf(char **ptr, const char *format, ...)
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{
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va_list ap;
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int ret;
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char tmp[1024];
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*ptr = NULL;
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va_start(ap, format);
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ret = vsnprintf(tmp, sizeof(tmp), format, ap);
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va_end(ap);
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if (ret == sizeof(tmp)) {
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fatal("vsnprintf - too long\n");
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}
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*ptr = x_strdup(tmp);
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}
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/*
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this is like strdup() but dies if the malloc fails
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*/
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char *x_strdup(const char *s)
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{
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char *ret;
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ret = strdup(s);
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if (!ret) {
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fatal("out of memory in strdup\n");
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}
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return ret;
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}
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