57 lines
965 B
C
57 lines
965 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "file.h"
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#include "util.h"
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struct filedata readfile(FILE *fp) {
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struct filedata f;
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f.lc = 0;
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f.len = 0;
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f.binary = 0;
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size_t bufsize = 4;
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f.buf = malloc(bufsize);
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if (f.buf == NULL)
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die("malloc");
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char c;
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while (fread(&c, sizeof(char), 1, fp) > 0) {
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if (f.len == bufsize - 1) {
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bufsize *= 2;
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char *new_buf = realloc(f.buf, bufsize);
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if (f.buf == NULL) {
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free(f.buf);
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die("realloc");
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}
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f.buf = new_buf;
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}
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if (c == '\n') {
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f.lc++;
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}
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f.buf[f.len++] = c;
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}
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// guess if printable
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// from https://github.com/sharkdp/content_inspector/blob/master/src/lib.rs
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int testlen = f.len >= 64 ? 64 : f.len;
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char *testbuf[testlen];
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memcpy(testbuf, f.buf, testlen);
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char *result = memchr(testbuf, 0x00, testlen);
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if (result) {
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f.binary = 1;
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} else {
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f.binary = 0;
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}
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return f;
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}
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