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26 lines
659 B
C
26 lines
659 B
C
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/*
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* Read an entire line of text from a file. Return a buffer
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* malloced to be as big as necessary (caller must free).
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*/
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#include "defs.h"
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#include "misc.h"
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char *fgetline(FILE *fp)
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{
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char *ret = snewn(512, char);
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size_t size = 512, len = 0;
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while (fgets(ret + len, size - len, fp)) {
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len += strlen(ret + len);
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if (len > 0 && ret[len-1] == '\n')
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break; /* got a newline, we're done */
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sgrowarrayn_nm(ret, size, len, 512);
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}
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if (len == 0) { /* first fgets returned NULL */
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sfree(ret);
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return NULL;
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}
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ret[len] = '\0';
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return ret;
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}
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