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@ -17,11 +17,13 @@
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "options.h"
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#include "util.h"
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#define FNAME_LEN 10
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void cleanup();
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void* s_malloc(size_t size) {
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@ -75,3 +77,39 @@ void size_readable(float *size, const char **unit) {
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*size /= 1024;
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*unit = units[MIN(i, LEN(units) - 1)];
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}
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char* readline(FILE *stream) {
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size_t len;
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char *buf, *s, *end;
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if (!stream || feof(stream) || ferror(stream))
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return NULL;
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len = FNAME_LEN;
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s = buf = (char*) s_malloc(len * sizeof(char));
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do {
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*s = '\0';
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fgets(s, len - (s - buf), stream);
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if ((end = strchr(s, '\n'))) {
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*end = '\0';
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} else if (strlen(s) + 1 == len - (s - buf)) {
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buf = (char*) s_realloc(buf, 2 * len * sizeof(char));
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s = buf + len - 1;
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len *= 2;
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} else {
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s += strlen(s);
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}
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} while (!end && !feof(stream) && !ferror(stream));
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if (!ferror(stream) && *buf) {
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s = (char*) s_malloc((strlen(buf) + 1) * sizeof(char));
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strcpy(s, buf);
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} else {
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s = NULL;
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}
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free(buf);
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return s;
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}
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