diff options
Diffstat (limited to 'src/util.c')
| -rw-r--r-- | src/util.c | 45 |
1 files changed, 44 insertions, 1 deletions
@@ -1,5 +1,5 @@ /* This file is part of Eclat. - Copyright (C) 2012-2014 Sergey Poznyakoff. + Copyright (C) 2012-2015 Sergey Poznyakoff. Eclat is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -18,6 +18,7 @@ #include "json.h" #include <termios.h> #include <sys/ioctl.h> +#include <sys/stat.h> int translation_enabled; char *custom_map; @@ -367,6 +368,48 @@ canonattrname(char **attrs, const char *arg, char *delim, size_t *plen) } return NULL; } + +char * +read_file(const char *file) +{ + char *buf = NULL; + + if (strcmp(file, "-") == 0) { + struct grecs_txtacc *acc = grecs_txtacc_create(); + char inbuf[4096]; + size_t n; + + while (n = fread(inbuf, 1, sizeof(inbuf), stdin)) + grecs_txtacc_grow(acc, inbuf, n); + grecs_txtacc_grow_char(acc, 0); + if (ferror(stdin)) + die(EX_NOINPUT, "read error"); + grecs_txtacc_grow_char(acc, 0); + buf = grecs_txtacc_finish(acc, 1); + grecs_txtacc_free(acc); + } else { + struct stat st; + FILE *fp; + + if (stat(file, &st)) + die(EX_USAGE, "cannot stat file %s: %s", file, + strerror(errno)); + + /* FIXME: Use limits.h to check st.st_size */ + buf = grecs_malloc(st.st_size+1); + fp = fopen(file, "r"); + if (!fp) + die(EX_NOINPUT, "cannot open file %s: %s", file, + strerror(errno)); + if (fread(buf, st.st_size, 1, fp) != 1) + die(EX_NOINPUT, "error reading from %s: %s", file, + strerror(errno)); + fclose(fp); + buf[st.st_size] = 0; + } + + return buf; +} char *instance_store_base_url = "http://169.254.169.254/latest"; unsigned short instance_store_port; |